OMG / OM Group, Inc. - SEC-arkivering, Årsberetning, Fuldmagtserklæring

OM Group, Inc.
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SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to OM Group, Inc.
SEC Filings (Chronological Order)
Denne side giver en komplet, kronologisk liste over SEC-arkiveringer, eksklusive ejerskabsregistreringer, som vi leverer andre steder.
February 9, 2017 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 dfs662.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

February 9, 2016 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 rrd390.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-65852 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 52-1736882 (State or other jurisdiction of (I.R.

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

S-8 POS 1 eh1501358s8posa1-47230.htm AMENDMENT NO. 1 As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-47230 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Dela

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

S-8 POS 1 eh1501357s8posa1-07259.htm AMENDMENT NO. 1 As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-07529 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Dela

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-197835 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 52-1736882 (State or other jurisdiction of (I.R

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

S-8 POS 1 eh1501361s8posa1-145238.htm AMENDMENT NO. 1 As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-145238 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) De

November 19, 2015 S-8 POS

OM Group AMENDMENT NO. 1

S-8 POS 1 eh1501360s8posa1-141033.htm AMENDMENT NO. 1 As filed with the Securities and Exchange Commission on November 18, 2015. Registration No. 333-141033 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) De

November 9, 2015 15-12B

OM Group FORM 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-12515 OM GROUP, INC. (Exact name of registrant as specified in its char

October 28, 2015 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 9, 2015, pursuant to the provisions of Rule 12d2-2 (a).

August 13, 2015 EX-99.1

Apollo Affiliated Funds to Acquire OM Group for $34.00 Per Share; Transaction Expected to Close by End of 2015

EX-99.1 Exhibit 99.1 PRESS RELEASE OM Group Stockholders Approve Merger Transaction Apollo Affiliated Funds to Acquire OM Group for $34.00 Per Share; Transaction Expected to Close by End of 2015 CLEVELAND, Aug. 10, 2015 /PRNewswire/ ? OM Group, Inc. (NYSE: OMG) announced that at a special meeting held today, stockholders voted to approve the proposal to adopt the merger agreement entered into with

August 13, 2015 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K 1 d57779d8k.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 10, 2015 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation

August 5, 2015 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 4, 2015 OM GROUP, INC.

August 5, 2015 EX-99.1

OM Group Provides Transaction Update Board Reaffirms Recommendation of Transaction with Apollo and Platform

Exhibit 99.1 Exhibit 99.1 OM Group Provides Transaction Update Board Reaffirms Recommendation of Transaction with Apollo and Platform CLEVELAND, Aug. 4, 2015 /PRNewswire/ ? OM Group, Inc. (NYSE: OMG) announced today that the strategic acquiror (the ?Bidder?) who previously submitted a ?company takeover proposal? during the 35-day ?go-shop? period under the terms of the Company?s previously announc

August 5, 2015 10-Q

OM Group 10-Q (Quarterly Report)

10-Q 1 omg6301510q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2015 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-

July 10, 2015 DEFM14A

OM Group DEFM14A

DEFM14A 1 d949251ddefm14a.htm DEFM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box:

June 26, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - AMENDMENT NO. 5 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 5)1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 670872100 (CUSIP Number) DAVID A. LORBER FRONTFO

June 26, 2015 PREM14A

OM Group PREM14A

PREM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 18, 2015 EX-24

EX-24

POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That the undersigned has made, constituted and appointed, and by this instrument does make, constitute and appoint VALERIE GENTILE SACHS, ROBERT PIERCE and MICHELE CONNELL, acting individually, as his true and lawful attorney, for him, and in his name, place and stead, to affix, as attorney-in-fact, the signature of the undersigned to any reports or filings to the Securities and Exchange Commission on or in connection with Forms 3, 4, 5 or 144 with respect to transactions or holdings by the undersigned in equity securities issued by OM Group, Inc.

June 11, 2015 EX-24

EX-24

POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That the undersigned has made, constituted and appointed, and by this instrument does make, constitute and appoint VALERIE GENTILE SACHS, ROBERT PIERCE and MICHELE CONNELL, acting individually, as his true and lawful attorney, for him, and in his name, place and stead, to affix, as attorney-in-fact, the signature of the undersigned to any reports or filings to the Securities and Exchange Commission on or in connection with Forms 3, 4, 5 or 144 with respect to transactions or holdings by the undersigned in equity securities issued by OM Group, Inc.

June 5, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - AMENDMENT NO. 4 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da40801600806032015.htm AMENDMENT NO. 4 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 4)1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Tit

June 3, 2015 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

8-K 1 d937814d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 3, 2015 (June 1, 2015) OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdict

June 1, 2015 DEFA14A

OM Group DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

June 1, 2015 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among DUKE ACQUISITION HOLDINGS, LLC, DUKE ACQUISITION, INC., MACDERMID AMERICAS ACQUISITIONS INC., OM GROUP, INC. dated as of May 31, 2015 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Sec

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among DUKE ACQUISITION HOLDINGS, LLC, DUKE ACQUISITION, INC., MACDERMID AMERICAS ACQUISITIONS INC., and OM GROUP, INC. dated as of May 31, 2015 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effect of the Merger 3 Section 1.5 Restated Certi

June 1, 2015 SD

OM Group SD CONFLICT MINERALS 2014

2014 Form SD OMGroup UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 1, 2015 DEFA14A

OM Group DEFA14A

DEFA14A 1 d935842ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ P

June 1, 2015 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 31, 2015 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Number)

June 1, 2015 EX-99.1

Transaction Delivers Significant Value to OM Group Stockholders and Provides Path for Future Growth of Its Businesses

EX-99.1 Exhibit 99.1 PRESS RELEASE OM Group, Inc. Agrees To Be Acquired By Apollo Affiliated Funds In Partnership With Platform Specialty Products Corporation For $34.00 Per Share In An All Cash Transaction Transaction Delivers Significant Value to OM Group Stockholders and Provides Path for Future Growth of Its Businesses CLEVELAND, NEW YORK and WEST PALM BEACH, Fla., June 1, 2015 /PRNewswire/ ?

June 1, 2015 EX-99.1

Transaction Delivers Significant Value to OM Group Stockholders and Provides Path for Future Growth of Its Businesses

EX-99.1 Exhibit 99.1 PRESS RELEASE OM Group, Inc. Agrees To Be Acquired By Apollo Affiliated Funds In Partnership With Platform Specialty Products Corporation For $34.00 Per Share In An All Cash Transaction Transaction Delivers Significant Value to OM Group Stockholders and Provides Path for Future Growth of Its Businesses CLEVELAND, NEW YORK and WEST PALM BEACH, Fla., June 1, 2015 /PRNewswire/ —

June 1, 2015 EX-1.01

2

EX-1.01 2 exhibit101-omgroupx2014cmr.htm EXHIBIT 1.01 Exhibit 1.01 OM Group, Inc. Conflict Minerals Report For The Year Ended December 31, 2014 This Conflict Minerals Report (“Report”) for the year ended December 31, 2014 is presented to comply with Conflict Minerals Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Conflict Minerals Rule” or “Rule”). The Conflict Minerals Rule wa

June 1, 2015 DEFA14A

OM Group 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 31, 2015 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Num

June 1, 2015 EX-3.1

SECOND AMENDED AND RESTATED OM GROUP, INC.

EX-3.1 Exhibit 3.1 SECOND AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. As Adopted by the Stockholders October 7, 1993, and Further Amended by the Directors through May 31, 2015 SECOND AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. ARTICLE I OFFICES The Corporation may have such office(s) at such place(s), both within and outside the State of Delaware, as the Board of Directors from time to time

June 1, 2015 DEFA14A

OM Group DEFA14A

DEFA14A 1 d935838ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ P

June 1, 2015 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among DUKE ACQUISITION HOLDINGS, LLC, DUKE ACQUISITION, INC., MACDERMID AMERICAS ACQUISITIONS INC., OM GROUP, INC. dated as of May 31, 2015 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Sec

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among DUKE ACQUISITION HOLDINGS, LLC, DUKE ACQUISITION, INC., MACDERMID AMERICAS ACQUISITIONS INC., and OM GROUP, INC. dated as of May 31, 2015 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effect of the Merger 3 Section 1.5 Restated Certi

June 1, 2015 EX-3.1

SECOND AMENDED AND RESTATED OM GROUP, INC.

EX-3.1 Exhibit 3.1 SECOND AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. As Adopted by the Stockholders October 7, 1993, and Further Amended by the Directors through May 31, 2015 SECOND AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. ARTICLE I OFFICES The Corporation may have such office(s) at such place(s), both within and outside the State of Delaware, as the Board of Directors from time to time

April 30, 2015 EX-99.1

OM GROUP ANNOUNCES FIRST QUARTER 2015 FINANCIAL RESULTS Company makes progress on competitive re-positioning and cost-optimization initiatives; reaffirms 2015 full-year adjusted EBITDA forecast of $105-$115 million

Exhibit 99 - 3.31.15 PRESS RELEASE OM GROUP ANNOUNCES FIRST QUARTER 2015 FINANCIAL RESULTS Company makes progress on competitive re-positioning and cost-optimization initiatives; reaffirms 2015 full-year adjusted EBITDA forecast of $105-$115 million CLEVELAND - April 30, 2015 - OM Group, Inc. (NYSE: OMG) today announced financial results for the three months ended March 31, 2015. For the quarter,

April 30, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2015 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROUP, INC. (Exact

April 30, 2015 8-K

OM Group 8-K (Current Report/Significant Event)

FirstQuarter2015EarningsReleaseForm8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 22, 2015 DEF 14A

OM Group DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 25, 2015 EX-10.1

[The remainder of this page is intentionally blank.]

EX-10.1 Exhibit 10.1 EXECUTION VERSION AGREEMENT This Agreement (“Agreement”), dated March 23, 2015 (“Effective Date”), is by and among OM Group, Inc. (“Company”), FrontFour Capital Group LLC, and the entities and natural persons listed on Exhibit A (collectively, “FrontFour” and each a “FrontFour Member”). Each of the Company and FrontFour is a “Party” to this Agreement and collectively they are

March 25, 2015 8-K

OM Group 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 23, 2015 OM GROUP, INC.

March 25, 2015 EX-99.1

OM GROUP AND FRONTFOUR CAPITAL REACH AGREEMENT ON COMPOSITION OF NOMINEE SLATE; COMPANY TO CONTINUE FOCUS ON OPERATIONAL IMPROVEMENTS COMPANY ADDS TWO NEW INDEPENDENT DIRECTORS TO SLATE AND AGREES TO APPOINT ADDITIONAL INDEPENDENT BOARD MEMBER FOLLOW

EX-99.1 Exhibit 99.1 OM GROUP AND FRONTFOUR CAPITAL REACH AGREEMENT ON COMPOSITION OF NOMINEE SLATE; COMPANY TO CONTINUE FOCUS ON OPERATIONAL IMPROVEMENTS COMPANY ADDS TWO NEW INDEPENDENT DIRECTORS TO SLATE AND AGREES TO APPOINT ADDITIONAL INDEPENDENT BOARD MEMBER FOLLOWING 2015 ANNUAL MEETING CLEVELAND, March 23, 2015 ? OM Group, Inc. (NYSE: OMG) today announced it has reached an agreement with s

March 23, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - EXHIBIT 99.1 - SETTLEMENT AGREEMENT, DATED MARCH 23, 2015 Activist Investment

begin 644 ex991to13da308016008032315.pdf M)5!$1BTQ+C8-"B7Q^??V#0HE,RXT#0HT(#`@;V)J#0H\/`T*+T)I='-097)# M;VUP;VYE;G0@,2`-"B]#;VQO$1E8V]D92`-"B](96EG:'0@,S,P,"`-"B],96YG=&@@ M-2`P(%(@#0HO3F%M92`O:6UA9V4@#0HO4W5B='EP92`O26UA9V4@#0HO5'EP M92`O6$]B:F5C="`-"B]7:61T:"`R-34P(`T*/CX-"G-T1]&:/H^C-'$9H\C-'D?1FCZ.(^CZ/(XCR.(\C-'$>1Y&:.(\C MR,T>1]'D?1]'D9H^CR/(XCR/(S1]'D>1]'D?1Y'T?1Y'T?1Y&:/H^C-'D>1] M'$>1Y'T<

March 23, 2015 EX-99.2

JOINT FILING AGREEMENT

Exhibit 99.2 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including amendments thereto) with respect to the common stock, $0.01 par value per share, of OM Group, Inc. This Joint Filing Agreement shall be filed as an Ex

March 23, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - AMENDMENT NO. 3 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da30801600803232015.htm AMENDMENT NO. 3 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 3)1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Tit

March 5, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - AMENDMENT NO. 2 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da20801600803042015.htm AMENDMENT NO. 2 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 2)1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Tit

March 4, 2015 DFAN14A

EXHIBIT 1 - PRESENTATION, DATED MARCH 4, 2015

March 4, 2015 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant o Filed by a Party other than the Registrant x Check the appropriate box: o Preliminary Proxy Statement ¨ Confide

March 2, 2015 EX-21

VAC Magnetic Korea Yuhan Hoesa Korea VAC Netherlands B.V. Netherlands VAC Participation GmbH Germany VAC Sales USA LLC Delaware Vacuumschmelze (Malaysia) Sdn. Bhd. Malaysia Vacuumschmelze China Magnetics (Shenyang) Co., Ltd. China Vacuumschmelze GmbH

Exhibit 21 NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Borchers Additives LLC Ohio Compugraphics International Limited United Kingdom Compugraphics Jena GmbH Germany Compugraphics U.

March 2, 2015 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 2, 2015 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-17368

March 2, 2015 EX-10.46

OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT

[Form - Performance-Based RSU Agreement][2015] OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT THIS PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT (the “Agreement”), dated as of , 201, is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise defined in this Agreement that are defi

March 2, 2015 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director of OM Group, Inc. (the “Company”), a Delaware corporation, which anticipates filing with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the Company's fiscal year ended December 31, 2014, hereby constitutes and appoints JOSEPH SC

March 2, 2015 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 Commission file number 001-12515 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OM GROUP, INC. (Exact name of Registrant a

March 2, 2015 EX-99.1

OM GROUP ANNOUNCES FOURTH QUARTER AND FULL YEAR 2014 FINANCIAL RESULTS Strong operating cash flows support acquisition and returns of capital to shareholders; forecast outlined for 2015

EX-99.1 2 exhibit99-123114.htm EXHIBIT 99.1 PRESS RELEASE OM GROUP ANNOUNCES FOURTH QUARTER AND FULL YEAR 2014 FINANCIAL RESULTS Strong operating cash flows support acquisition and returns of capital to shareholders; forecast outlined for 2015 CLEVELAND - March 2, 2015 - OM Group, Inc. (NYSE: OMG) today announced financial results for the fourth quarter and year ended December 31, 2014. For the qu

February 18, 2015 EX-99.1

OM GROUP ANNOUNCES COMPETITIVE REPOSITIONING AND COST OPTIMIZATION OPPORTUNITIES Expects annual savings of $30-$40 million by the end of 2017; expects to record non-cash impairment charges in Q4 2014

PRESS RELEASE OM GROUP ANNOUNCES COMPETITIVE REPOSITIONING AND COST OPTIMIZATION OPPORTUNITIES Expects annual savings of $30-$40 million by the end of 2017; expects to record non-cash impairment charges in Q4 2014 CLEVELAND – February 18, 2015 – OM Group, Inc.

February 18, 2015 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 18, 2015 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1

February 11, 2015 SC 13G/A

OMG / OM Group, Inc. / VANGUARD GROUP INC Passive Investment

SC 13G/A 1 omgroupinc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: OM Group Inc Title of Class of Securities: Common Stock CUSIP Number: 670872100 Date of Event Which Requires Filing of this Statement: December 31, 2014 Check the appropriate box to designate the rule pursuant to which this

February 5, 2015 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 rrd244.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

January 28, 2015 DFAN14A

OMG / OM Group, Inc. DFAN14A - - DFAN14A

DFAN14A 1 frontfourdfan14ajan282015.htm DFAN14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant o Filed by a Party other than the Registrant x Check the appr

January 28, 2015 EX-99.2

FRONTFOUR MASTER FUND, LTD. c/o FrontFour Capital Group LLC 35 Mason Street, 4th Floor Greenwich, CT 06830

Exhibit 99.2 FRONTFOUR MASTER FUND, LTD. c/o FrontFour Capital Group LLC 35 Mason Street, 4th Floor Greenwich, CT 06830 January , 2015 Re: OM Group, Inc. Dear : Thank you for agreeing to serve as a nominee for election to the Board of Directors of OM Group, Inc. (the “Company”) in connection with the proxy solicitation that FrontFour Master Fund, Ltd. and its affiliates (collectively, the “Group”)

January 28, 2015 SC 13D/A

OMG / OM Group, Inc. / FrontFour Capital Group LLC - AMENDMENT NO. 1 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da10801600801262015.htm AMENDMENT NO. 1 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 1)1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Tit

January 28, 2015 EX-99.1

JOINT FILING AND SOLICITATION AGREEMENT

Exhibit 99.1 JOINT FILING AND SOLICITATION AGREEMENT WHEREAS, certain of the undersigned are stockholders, direct or beneficial, of OM Group, Inc., a Delaware corporation (the “Company”); WHEREAS, FrontFour Master Fund, Ltd. (“FrontFour Master”), FrontFour Capital Group LLC, FrontFour Opportunity Fund Ltd., FrontFour Capital Corp., Stephen E. Loukas, David A. Lorber, Zachary George, Thomas R. Mikl

January 28, 2015 EX-99.3

POWER OF ATTORNEY

Exhibit 99.3 POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints David A. Lorber and Stephen E. Loukas or either of them, the undersigned’s true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned’s beneficial ownership of, or participation in a group with respect to, securities of OM Group, Inc., a Delaware c

January 9, 2015 DEFA14A

OMG / OM Group, Inc. DEFA14A - - DEFA14A

DEFA14A 1 d850113ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ P

January 9, 2015 SC 13D

OMG / OM Group, Inc. / FrontFour Capital Group LLC - EXHIBIT 99.1 - LETTER Activist Investment

begin 644 ex991to13d0801600801022015.pdf M)5!$1BTQ+C4-)>+CS],-"C,W(#`@;V)J#3P\+T4@,[email protected]"!;(#8R,B`Q M.#(@72],(#4T,S4W+TQI;F5A7=<,C8S7#,W,EPS-31<,S4P M>EPR-S5<,S`W7#`R-%PS-31<,C(V7#,W-W9<,C"!;,S<@,S!= M+TEN9F\@,S0@,"!2+TQE;F=T:"`X,B]0F4@-C')E9@T@,`TE)45/1@T-#0T-#0T-#0T-#0T-#0T-#0T-#0T- M#0T-#0T-#0T-#0T-#0T-#3,X(#`@;V)J#3P\+U!A9V5,86)E;',@,S4@,"!2 M+U!A9V5S(#,S(#`@4B]4>7!E("]#871A;&]G/CX-96YD;V)J

January 9, 2015 SC 13D

OMG / OM Group, Inc. / FrontFour Capital Group LLC - SCHEDULE 13D Activist Investment

SC 13D 1 sc13d0801600801022015.htm SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. )1 OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 6

January 9, 2015 EX-99.2

FRONTFOUR CAPITAL SENDS LETTER TO OM GROUP EXPRESSING SERIOUS CONCERNS REGARDING CHRONIC UNDERPERFORMANCE Believes OM Group is Deeply Undervalued and Meaningful Change in the Form of Oversight, Accountability and Fresh Perspective is Necessary to Unl

Exhibit 99.2 FRONTFOUR CAPITAL SENDS LETTER TO OM GROUP EXPRESSING SERIOUS CONCERNS REGARDING CHRONIC UNDERPERFORMANCE Believes OM Group is Deeply Undervalued and Meaningful Change in the Form of Oversight, Accountability and Fresh Perspective is Necessary to Unlock Value Attributes Destruction of Shareholder Value to Misguided M&A Strategy, Bloated SG&A Cost Structure and Overcapitalized Balance

January 9, 2015 EX-99.3

JOINT FILING AGREEMENT

EX-99.3 4 ex993to13d0801600801022015.htm JOINT FILING AGREEMENT Exhibit 99.3 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including amendments thereto) with respect to the common stock, $0.01 par value per share, of OM

October 29, 2014 EX-99.1

OM GROUP ANNOUNCES THIRD QUARTER 2014 FINANCIAL RESULTS, SIGNED AGREEMENT FOR A COMPLEMENTARY ACQUISITION AND SHARE REPURCHASES

EX-99.1 2 exhibit99-93014.htm EXHIBIT PRESS RELEASE OM GROUP ANNOUNCES THIRD QUARTER 2014 FINANCIAL RESULTS, SIGNED AGREEMENT FOR A COMPLEMENTARY ACQUISITION AND SHARE REPURCHASES CLEVELAND - October 29, 2014 - OM Group, Inc. (NYSE: OMG) today announced financial results for the three months ended September 30, 2014. For the quarter, the Company reported adjusted pro forma EBITDA of $33 million, e

October 29, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 thirdquarter2014earningsre.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 29, 2014 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation)

October 29, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2014 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROUP, INC. (E

August 27, 2014 EX-10.4

Form of U.S. Non-Qualified Stock Option Agreement (2014 Plan) OM GROUP, INC. NON-QUALIFIED STOCK OPTION AGREEMENT

EX-10.4 Exhibit 10.4 Form of U.S. Non-Qualified Stock Option Agreement (2014 Plan) OM GROUP, INC. NON-QUALIFIED STOCK OPTION AGREEMENT THIS NON-QUALIFIED STOCK OPTION AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise defined in this Agreement that

August 27, 2014 EX-10.5

Form of U.S. Performance-Based Restricted Stock Agreement (2014 Plan) OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK AGREEMENT

EX-10.5 Exhibit 10.5 Form of U.S. Performance-Based Restricted Stock Agreement (2014 Plan) OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK AGREEMENT THIS PERFORMANCE-BASED RESTRICTED STOCK AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise define

August 27, 2014 EX-10.6

Form of U.S. Time-Based RSU Agreement (2014 Plan) OM GROUP, INC. TIME-BASED RESTRICTED STOCK UNITS AGREEMENT

EX-10.6 Exhibit 10.6 Form of U.S. Time-Based RSU Agreement (2014 Plan) OM GROUP, INC. TIME-BASED RESTRICTED STOCK UNITS AGREEMENT THIS TIME-BASED RESTRICTED STOCK UNITS AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise defined in this Agreement th

August 27, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K 1 d782515d8k.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 27, 2014 (August 27, 2014) OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction

August 27, 2014 EX-10.1

Form of International Non-Qualified Stock Option Agreement (2014 Plan) OM GROUP, INC. NON-QUALIFIED STOCK OPTION AGREEMENT

EX-10.1 Exhibit 10.1 Form of International Non-Qualified Stock Option Agreement (2014 Plan) OM GROUP, INC. NON-QUALIFIED STOCK OPTION AGREEMENT THIS NON-QUALIFIED STOCK OPTION AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise defined in this Agree

August 27, 2014 EX-10.3

Form of International Time-Based RSU Agreement (2014 Plan) OM GROUP, INC. TIME-BASED RESTRICTED STOCK UNITS AGREEMENT

EX-10.3 Exhibit 10.3 Form of International Time-Based RSU Agreement (2014 Plan) OM GROUP, INC. TIME-BASED RESTRICTED STOCK UNITS AGREEMENT THIS TIME-BASED RESTRICTED STOCK UNITS AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwise defined in this Agr

August 27, 2014 EX-10.2

Form of International Performance-Based RSU Agreement (2014 Plan) OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT

EX-10.2 Exhibit 10.2 Form of International Performance-Based RSU Agreement (2014 Plan) OM GROUP, INC. PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT THIS PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT (the “Agreement”), dated as of , 201 , is by and between OM GROUP, INC. (the “Company”) and (the “Participant”). All terms used in this Agreement with initial capital letters and not otherwis

August 26, 2014 CORRESP

OMG / OM Group, Inc. CORRESP - -

CORRESP 1 filename1.htm Ms. Melissa N. Rocha Senior Assistant Chief Accountant Division of Corporation Finance United States Securities and Exchange Commission Washington, DC 20549 Re: OM Group, Inc. Form 10-K for Fiscal Year Ended December 31, 2013 Filed February 26, 2014 File No. 1-12515 August 26, 2014 Dear Ms. Rocha: We have reviewed your August 12, 2014 letter regarding your comment on the fi

August 14, 2014 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2014 (June 10, 2014) OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Inc

August 4, 2014 EX-4.4

OM GROUP, INC. 2014 EQUITY AND INCENTIVE COMPENSATION PLAN

EXHIBIT 4.4 OM GROUP, INC. 2014 EQUITY AND INCENTIVE COMPENSATION PLAN 1.Purpose. The purpose of this 2014 Equity and Incentive Compensation Plan is to attract and retain Directors, officers, and other key executives and employees of the Company and its Subsidiaries and to provide to such persons incentives and rewards for performance. 2. Definitions. As used in this Plan: (a) “Appreciation Right”

August 4, 2014 S-8

OMG / OM Group, Inc. S-8 - - S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 52-1736882 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 950 Main Avenue, Suite 1300 Cleveland, Ohio 44113-7210 (Address of princi

August 4, 2014 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director and officer of OM Group, Inc.

August 1, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q 1 omg6301410q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2014 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-

August 1, 2014 EX-99.1

OM GROUP ANNOUNCES SECOND QUARTER 2014 FINANCIAL RESULTS AND SHARE REPURCHASES

PRESS RELEASE OM GROUP ANNOUNCES SECOND QUARTER 2014 FINANCIAL RESULTS AND SHARE REPURCHASES CLEVELAND - August 1, 2014 - OM Group, Inc.

August 1, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 secondquarter2014earningsr.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2014 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 0

June 11, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 form8-kmcfarlandappointment.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 11, 2014 (June 10, 2014) OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other

May 30, 2014 EX-1.02

2

Exhibit 1.02 OM Group, Inc. Conflict Minerals Report For The Year Ended December 31, 2013 This Conflict Minerals Report (“Report”) for the year ended December 31, 2013 is presented to comply with Conflict Minerals Rule 13p-1 under the Securities Exchange Act of 1934 (“Conflict Minerals Rule” or “Rule”). The Conflict Minerals Rule was adopted by the Securities and Exchange Commission (“SEC”) relate

May 30, 2014 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 950 Main Avenue, Suite 1300, Cleveland, Ohio 44113-7210 (Address or

May 15, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

8-K 1 form8-k2014annualmeetingre.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2014 (May 13, 2014) OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or othe

April 30, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 firstquarter2014earningsre.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2014 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 0

April 30, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2014 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROUP, INC. (Exact

April 30, 2014 EX-99.1

OM GROUP ANNOUNCES FIRST QUARTER 2014 FINANCIAL RESULTS Company reaffirms 2014 full-year pro forma EBITDA forecast of $130-$140 million

PRESS RELEASE OM GROUP ANNOUNCES FIRST QUARTER 2014 FINANCIAL RESULTS Company reaffirms 2014 full-year pro forma EBITDA forecast of $130-$140 million CLEVELAND - April 30, 2014 - OM Group, Inc.

April 28, 2014 S-8 POS

- S-8 POS

S-8 POS As filed with the Securities and Exchange Commission on April 28, 2014. Registration No. 333-07531 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 to FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 52-1736882 (State or other jurisdiction of

April 3, 2014 DEF 14A

- FORM DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 26, 2014 EX-21

VAC Participation GmbH Germany VAC Sales USA LLC Delaware Vacuumschmelze (Malaysia) Sdn. Bhd. Malaysia Vacuumschmelze China Magnetics (Shenyang) Co., Ltd. China Vacuumschmelze GmbH & Co. KG Germany Vacuumschmelze Singapore Pte. Ltd. Singapore Vacuums

Exhibit 21 NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Compugraphics International Limited United Kingdom Compugraphics Jena GmbH Germany Compugraphics U.

February 26, 2014 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director of OM Group, Inc. (the “Company”), a Delaware corporation, which anticipates filing with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the Company's fiscal year ended December 31, 2013, hereby constitutes and appoints JOSEPH M.

February 26, 2014 EX-10.37

FIRST AMENDMENT TO CREDIT AGREEMENT

FIRST AMENDMENT TO CREDIT AGREEMENT THIS FIRST AMENDMENT TO CREDIT AGREEMENT (?this First Amendment?) is made and entered into as of the 12th day of November, 2013, by and among: (i) OM GROUP, INC.

February 26, 2014 EX-10.38

SECOND AMENDMENT TO CREDIT AGREEMENT

SECOND AMENDMENT TO CREDIT AGREEMENT THIS SECOND AMENDMENT TO CREDIT AGREEMENT (?this Second Amendment?) is made and entered into as of the 7th day of February, 2014, by and among: (i) OM GROUP, INC.

February 26, 2014 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

10-K 1 omg1231201310k.htm 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 Commission file number 001-12515 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OM GROUP, I

February 18, 2014 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K/A 1 christensonform8ka.htm 8-K/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 18, 2014 (November 18, 2013) OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-

February 13, 2014 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 12, 2014 in connection with their beneficial ownership of OM Group, Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make

February 13, 2014 EX-99.I

to Schedule 13G

EX-99.I 2 d673445dex99i.htm EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 13, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 13, 2014 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1

February 13, 2014 SC 13G/A

OMG / OM Group, Inc. / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A 1 d673445dsc13ga.htm SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities and Exchange Act of 1934 Amendment #3 OM Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

February 13, 2014 EX-99.1

OM GROUP ANNOUNCES FOURTH QUARTER 2013 FINANCIAL RESULTS AND QUARTERLY CASH DIVIDEND Company achieves full year forecast; Board approves first quarterly cash dividend since 2002; Company forecasts growth in 2014

PRESS RELEASE OM GROUP ANNOUNCES FOURTH QUARTER 2013 FINANCIAL RESULTS AND QUARTERLY CASH DIVIDEND Company achieves full year forecast; Board approves first quarterly cash dividend since 2002; Company forecasts growth in 2014 CLEVELAND - February 13, 2014 - OM Group, Inc.

February 12, 2014 SC 13G/A

OMG / OM Group, Inc. / VANGUARD GROUP INC Passive Investment

SC 13G/A 1 omgroupinc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: OM Group Inc Title of Class of Securities: Common Stock CUSIP Number: 670872100 Date of Event Which Requires Filing of this Statement: December 31, 2013 Check the appropriate box to designate the rule pursuant to which this

February 10, 2014 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 rrd337.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

November 22, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 22, 2013 (November 18, 2013) OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incorpor

November 1, 2013 EX-10.2

AMENDMENT NO. 2 AND WAIVER TO CREDIT AGREEMENT

Execution Version AMENDMENT NO. 2 AND WAIVER TO CREDIT AGREEMENT THIS AMENDMENT NO. 2 AND WAIVER TO CREDIT AGREEMENT, dated as of July 1, 2013 (this “Amendment”), to the Credit Agreement, dated as of August 2, 2011 (as amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), among OM GROUP, INC., a Delaware corporation (the “Company”), HARKO C.V., a limited

November 1, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2013 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736

November 1, 2013 EX-99

OM GROUP ANNOUNCES THIRD QUARTER 2013 FINANCIAL RESULTS Debt-free balance sheet; Strong cash flows; Higher cost-reduction benefits

PRESS RELEASE OM GROUP ANNOUNCES THIRD QUARTER 2013 FINANCIAL RESULTS Debt-free balance sheet; Strong cash flows; Higher cost-reduction benefits CLEVELAND - November 1, 2013 - OM Group, Inc.

November 1, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2013 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROUP, INC. (E

September 6, 2013 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 4, 2013 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File N

September 6, 2013 EX-10.1

$350,000,000 REVOLVING CREDIT FACILITY CREDIT AGREEMENT by and among OM GROUP, INC., HARKO C.V. and VAC GERMANY GMBH THE GUARANTORS PARTY HERETO THE LENDERS PARTY HERETO PNC CAPITAL MARKETS LLC, MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED and

CoverPublished Customer CUSIP Number: 67087NAJ3 $350,000,000 REVOLVING CREDIT FACILITY CREDIT AGREEMENT by and among OM GROUP, INC.

September 6, 2013 EX-99.1

OM GROUP ANNOUNCES NEW $350 MILLION CREDIT FACILITY

PRESS RELEASE OM GROUP ANNOUNCES NEW $350 MILLION CREDIT FACILITY CLEVELAND – September 6, 2013 - OM Group, Inc.

August 1, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2013 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736

August 1, 2013 EX-99

OM GROUP ANNOUNCES SECOND QUARTER 2013 FINANCIAL RESULTS Cost-reduction initiatives on track; Debt-free balance sheet; $9 million of shares repurchased

PRESS RELEASE OM GROUP ANNOUNCES SECOND QUARTER 2013 FINANCIAL RESULTS Cost-reduction initiatives on track; Debt-free balance sheet; $9 million of shares repurchased CLEVELAND - August 1, 2013 - OM Group, Inc.

August 1, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q 1 omg630201310q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2013 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00

May 13, 2013 8-K

Submission of Matters to a Vote of Security Holders - FORM 8-K

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2013 (May 7, 2013) OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation)

May 2, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 2, 2013 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736882

May 2, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2013 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROUP, INC. (Exact

May 2, 2013 EX-99

OM GROUP ANNOUNCES FIRST QUARTER 2013 FINANCIAL RESULTS Cobalt business divestiture completed; Debt substantially repaid; Share repurchase program underway; Progress on cost-reduction initiatives

PRESS RELEASE OM GROUP ANNOUNCES FIRST QUARTER 2013 FINANCIAL RESULTS Cobalt business divestiture completed; Debt substantially repaid; Share repurchase program underway; Progress on cost-reduction initiatives CLEVELAND - May 2, 2013 - OM Group, Inc.

May 2, 2013 EX-10.1

ASSET AND STOCK PURCHASE AGREEMENT OMG HARJAVALTA CHEMICALS HOLDING BV, OMG AMERICAS, INC., OM GROUP, INC., KOBOLTTI CHEMICALS HOLDINGS LIMITED FREEPORT-MCMORAN CORPORATION Dated as of January 21, 2013

ASSET AND STOCK PURCHASE AGREEMENT AMONG OMG HARJAVALTA CHEMICALS HOLDING BV, OMG AMERICAS, INC.

April 4, 2013 EX-99.2

OM Group, Inc.

EX-99.2 Exhibit 99.2 OM Group, Inc. Proforma Condensed Consolidated Balance Sheet As of December 31, 2012 (Unaudited) Disposition of Proforma Proforma (in thousands) Dec 31, 2012 AM (1) Adjustments (2) Dec 31, 2012 ASSETS Current assets Cash and cash equivalents $ 227,612 (11,573 ) — A 216,039 Restricted cash on deposit 22,793 (22,793 ) — — Accounts receivable, less allowance of $4,971 in 2012 174

April 4, 2013 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2013 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-17368

April 4, 2013 EX-99.1

OM Group, Inc. Completes Divestiture Of Its Cobalt Business For $325 Million In Cash

EX-99.1 Exhibit 99.1 OM Group, Inc. Completes Divestiture Of Its Cobalt Business For $325 Million In Cash CLEVELAND, March 29, 2013 /PRNewswire/ — OM Group, Inc. (NYSE: OMG) today announced that it has completed the previously-announced divestiture of its Advanced Materials business, including the sale of its downstream business, to a joint venture held by Freeport-McMoRan Copper & Gold Inc. (NYSE

March 28, 2013 DEF 14A

- DEF 14A

DEF 14A 1 d482090ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statem

March 21, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 21, 2013 (March 21, 2013) OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation)

March 21, 2013 EX-99

OM GROUP NAMES DAVID B. KNOWLES AS PRESIDENT AND CHIEF OPERATING OFFICER

EX-99 Exhibit 99 PRESS RELEASE OM GROUP NAMES DAVID B. KNOWLES AS PRESIDENT AND CHIEF OPERATING OFFICER CLEVELAND – March 21, 2013 – OM Group, Inc. (NYSE: OMG) today announced the appointment of David B. Knowles as president and chief operating officer, effective April 8, 2013. Mr. Knowles brings nearly 30 years of strategic and operational leadership and will have responsibility for all of OM Gro

February 28, 2013 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

10-K 1 omg1231201210k.htm FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 Commission file number 001-12515 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OM GRO

February 28, 2013 EX-10.13

ASSET AND STOCK PURCHASE AGREEMENT OMG HARJAVALTA CHEMICALS HOLDING BV, OMG AMERICAS, INC., OM GROUP, INC., KOBOLTTI CHEMICALS HOLDINGS LIMITED FREEPORT-MCMORAN CORPORATION Dated as of January 21, 2013

EX-10.13 2 exhibit1013.htm EXHIBIT 10.13 ASSET AND STOCK PURCHASE AGREEMENT AMONG OMG HARJAVALTA CHEMICALS HOLDING BV, OMG AMERICAS, INC., OM GROUP, INC., KOBOLTTI CHEMICALS HOLDINGS LIMITED and, solely for purposes of Section 10.13 and Exhibit A, FREEPORT-MCMORAN CORPORATION Dated as of January 21, 2013 CLI-2060753v12 TABLE OF CONTENTS PAGE ARTICLE I Purchase and Sale; Closing 2 Section 1.01.Purc

February 28, 2013 EX-21

OMG UK Technology Limited United Kingdom SANVAC (Beijing) Magnetics Co., LTD (49%) China Societe Congolaise Pour le Traitement du Terril de Lubumbashi SPRL (49%) Democratic Republic of Congo VAC Beteiligungs-GmbH Germany VAC Finanzierung GmbH Germany

Exhibit 21 NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Compugraphics International Limited United Kingdom Compugraphics Jena GmbH Germany Compugraphics U.

February 28, 2013 EX-10.38

CHANGE IN CONTROL AGREEMENT

Exhibit 10.38 CHANGE IN CONTROL AGREEMENT This Change in Control Agreement (this “Agreement”), dated as of , 20 is made by and between OM Group, Inc., a Delaware corporation (the “Company”), and (the “Executive”). WHEREAS, the Company considers it essential to the best interest of the Company and its stockholders that its management be encouraged to remain with the Company and to continue to devot

February 28, 2013 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director of OM Group, Inc. (the “Company”), a Delaware corporation, which anticipates filing with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the Company's fiscal year ended December 31, 2012, hereby constitutes and appoints JOSEPH M.

February 19, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 19, 2013 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File N

February 19, 2013 EX-99

OM GROUP ANNOUNCES FOURTH QUARTER 2012 FINANCIAL RESULTS Strong operating cash flow; Debt levels reduced; Significant cost reduction actions underway; 2013 EBITDA levels forecasted

PRESS RELEASE OM GROUP ANNOUNCES FOURTH QUARTER 2012 FINANCIAL RESULTS Strong operating cash flow; Debt levels reduced; Significant cost reduction actions underway; 2013 EBITDA levels forecasted CLEVELAND, Feb.

February 19, 2013 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1

10-Q/A 1 omg630201210qamended.htm 10-QA Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1 x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transitio

February 19, 2013 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1 x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM GROU

February 19, 2013 EX-10.10

AMENDMENT NO. 1 TO CREDIT AGREEMENT

EX-10.10 2 exhibit1010amended.htm EX-10.10 AMENDMENT NO. 1 TO CREDIT AGREEMENT Amendment No. 1, dated as of August 1, 2012 (this “Amendment” or this “Amendment No. 1”), to the Credit Agreement, dated as of August 2, 2011, among OM GROUP, INC., a Delaware corporation (the “Company”), HARKO C.V., a limited partnership (commanditaire vennootschap) organized under the laws of the Netherlands (the “Dut

February 19, 2013 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1

10-Q/A 1 omg930201210qamended.htm 10-QA Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment 1 x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the tran

February 19, 2013 8-K

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 19, 2013 (February 18, 2013) OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation

February 13, 2013 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 12, 2013 in connection with their beneficial ownership of OM Group, Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make

February 13, 2013 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 13, 2013 SC 13G/A

OMG / OM Group, Inc. / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #2 Under the Securities and Exchange Act of 1934 OM Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is fil

February 11, 2013 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 rrd386.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

February 11, 2013 SC 13G/A

OMG / OM Group, Inc. / VANGUARD GROUP INC Passive Investment

SC 13G/A 1 omgroupinc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2 )* Name of issuer: OM Group Inc Title of Class of Securities: Common Stock CUSIP Number: 670872100 Date of Event Which Requires Filing of this Statement: December 31, 2012 Check the appropriate box to designate the rule pursuant to which this

February 8, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 7, 2013 OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Nu

February 6, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 d482057d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2013 OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of inco

January 22, 2013 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 21, 2013 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Num

January 22, 2013 EX-99.1

OM GROUP ANNOUNCES AGREEMENTS TO EXIT ITS ADVANCED MATERIALS BUSINESS Transactions Complete Transition from Commodity to Higher Value-Add Businesses, Enabling Company to Reduce Debt, Initiate a Share Repurchase Program and Invest in Its Growth Strate

EX-99.1 2 d474328dex991.htm PRESS RELEASE OF OM GROUP, INC., DATED JANUARY 21, 2013 Exhibit 99.1 OM GROUP ANNOUNCES AGREEMENTS TO EXIT ITS ADVANCED MATERIALS BUSINESS Transactions Complete Transition from Commodity to Higher Value-Add Businesses, Enabling Company to Reduce Debt, Initiate a Share Repurchase Program and Invest in Its Growth Strategy CLEVELAND, January 21, 2013, — OM Group, Inc. (NYS

November 9, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515

November 9, 2012 EX-99

OM GROUP ANNOUNCES THIRD QUARTER 2012 FINANCIAL RESULTS Exceptionally strong operating cash flow; debt levels reduced

PRESS RELEASE OM GROUP ANNOUNCES THIRD QUARTER 2012 FINANCIAL RESULTS Exceptionally strong operating cash flow; debt levels reduced CLEVELAND - November 9, 2012 - OM Group, Inc.

November 9, 2012 EX-10.10

AMENDMENT NO. 1 TO CREDIT AGREEMENT

AMENDMENT NO. 1 TO CREDIT AGREEMENT Amendment No. 1, dated as of August 1, 2012 (this “Amendment” or this “Amendment No. 1”), to the Credit Agreement, dated as of August 2, 2011, among OM GROUP, INC., a Delaware corporation (the “Company”), HARKO C.V., a limited partnership (commanditaire vennootschap) organized under the laws of the Netherlands (the “Dutch Borrower” and, together with the Company

November 9, 2012 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 9, 2012 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-17

August 9, 2012 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2012 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736

August 9, 2012 EX-99

OM GROUP ANNOUNCES SECOND QUARTER 2012 FINANCIAL RESULTS Strong contributions from newer transformative platforms; Significant cash flow generation

Press Release Exhibit 99 PRESS RELEASE OM GROUP ANNOUNCES SECOND QUARTER 2012 FINANCIAL RESULTS Strong contributions from newer transformative platforms; Significant cash flow generation CLEVELAND – August 9, 2012 – OM Group, Inc.

August 9, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM G

May 17, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 14, 2012 OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Number

May 11, 2012 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2012 OM GROUP, INC. (Exact Name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (Commission File Number)

May 3, 2012 EX-99

OM GROUP REPORTS RESULTS FOR 2012 FIRST QUARTER - Strong revenue and adjusted EBITDA growth driven by acquisition -

Press release Exhibit 99 PRESS RELEASE OM GROUP REPORTS RESULTS FOR 2012 FIRST QUARTER - Strong revenue and adjusted EBITDA growth driven by acquisition - CLEVELAND – May 3, 2012 – OM Group, Inc.

May 3, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2012 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-12515 OM

May 3, 2012 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 d346552d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 3, 2012 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorpora

April 25, 2012 DEFA14A

- DEFA14A

DEFA14A 1 d340102ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as

March 29, 2012 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 21, 2012 EX-10.5

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT

EX-10.5 6 exhibit105.htm FORM OF RESTRICTED STOCK UNIT AGREEMENT (2012 PERFORMANCE-BASED INTERNATIONAL) UNDER THE AMENDED AND RESTATED 2007 INCENTIVE COMPENSATION PLAN Form of Restricted Stock Unit Agreement (Performance-Based) – Standard Intl. OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT THIS RESTRICTED STOCK UNIT AGREEMENT (“Agreement”) is dated as of <> (being

March 21, 2012 EX-10.4

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK AGREEMENT

EX-10.4 5 exhibit104.htm FORM OF RESTRICTED STOCK AGREEMENT (2012 PERFORMANCE-BASED) UNDER THE AMENDED AND RESTATED 2007 INCENTIVE COMPENSATION PLAN Form of Restricted Stock Agreement (Performance-based) OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK AGREEMENT THIS RESTRICTED STOCK AGREEMENT (“Agreement”) dated as of <> (being the grant date of this restricted stock Award), is be

March 21, 2012 EX-10.7

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT

Form of Restricted Stock Unit Agreement (Time-based) – Standard Intl. OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT THIS RESTRICTED STOCK UNIT AGREEMENT (“Agreement”) is dated as of <> (being the grant date of this restricted stock unit Award), between OM Group, Inc., a Delaware corporation (“Company”), and <> (“Participant”). WHEREAS, the Company maintains the Am

March 21, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K 1 form8-kincentiveplanamendm.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 15, 2012 OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incor

March 21, 2012 EX-10.6

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT

Form of Restricted Stock Unit Agreement (Time-based) OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT THIS RESTRICTED STOCK UNIT AGREEMENT (“Agreement”) is dated as of <> (being the grant date of this restricted stock unit Award), between OM Group, Inc., a Delaware corporation (“Company”), and <> (“Participant”). WHEREAS, the Company maintains the Amended and Restate

March 21, 2012 EX-10.1

OM GROUP, INC. Amended and Restated 2007 Incentive Compensation Plan 1. Purpose

OM GROUP, INC. Amended and Restated 2007 Incentive Compensation Plan 1. Purpose The purpose of this Amended and Restated 2007 Incentive Compensation Plan (the “Plan”) is to advance the long-term interests of OM Group, Inc. (the “Corporation”) by (i) motivating key personnel by means of incentive compensation, (ii) furthering the identity of interests of participants with those of the stockholders

March 21, 2012 EX-10.3

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN NON-QUALIFIED STOCK OPTION AGREEMENT

EX-10.3 4 exhibit103.htm FORM OF STOCK OPTION AGREEMENT (2012 INTERNATIONAL) UNDER THE AMENDED AND RESTATED 2007 INCENTIVE COMPENSATION PLAN Form of Non-Qualified Stock Option Agreement (Standard International) OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN NON-QUALIFIED STOCK OPTION AGREEMENT THIS STOCK OPTION AGREEMENT (“Agreement”), dated as of <> (being the date this option is granted), is by

March 21, 2012 EX-10.2

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN NON-QUALIFIED STOCK OPTION AGREEMENT

Form of Non-Qualified Stock Option Agreement OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN NON-QUALIFIED STOCK OPTION AGREEMENT THIS STOCK OPTION AGREEMENT (“Agreement”), dated as of <> (being the date this option is granted), is by and between OM GROUP, INC. (“Company”), and <> (“Participant”). WHEREAS, the Company maintains the Amended and Restated 2007 Incentive Compensation Plan (the “Plan”)

February 28, 2012 EX-21

OMG UK Technology Limited United Kingdom SANVAC (Beijing) Magnetics Co., LTD (49%) China Societe Congolaise Pour le Traitement du Terril de Lubumbashi SPRL (49%) Democratic Republic of Congo VAC Beteiligungs-GmbH Germany VAC Finanzierung GmbH Germany

Exhibit 21 NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Compugraphics International Limited United Kingdom Compugraphics Jena GmbH Germany Compugraphics U.

February 28, 2012 EX-99

OM GROUP REPORTS RESULTS FOR 2011 FOURTH QUARTER AND FULL YEAR - Acquisition drives strong revenue and earnings growth - - Company delivers sixth consecutive year of positive cash flow from operations - - Strategy execution positions the company for

PRESS RELEASE OM GROUP REPORTS RESULTS FOR 2011 FOURTH QUARTER AND FULL YEAR - Acquisition drives strong revenue and earnings growth - - Company delivers sixth consecutive year of positive cash flow from operations - - Strategy execution positions the company for long-term profitable growth - CLEVELAND - February 28, 2012 - OM Group, Inc.

February 28, 2012 EX-10.38

CHANGE IN CONTROL AGREEMENT

Exhibit 10.38 CHANGE IN CONTROL AGREEMENT This Change in Control Agreement (this “Agreement”), dated as of , 20 is made by and between OM Group, Inc., a Delaware corporation (the “Company”), and (the “Executive”). WHEREAS, the Company considers it essential to the best interest of the Company and its stockholders that its management be encouraged to remain with the Company and to continue to devot

February 28, 2012 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 q42011earningsrelease.htm Q4 2011 EARNINGS RELEASE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2012 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction

February 28, 2012 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

10-K 1 omg1231201110k.htm FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2011 Commission file number 001-12515 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OM GRO

February 28, 2012 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director of OM Group, Inc. (the “Company”), a Delaware corporation, which anticipates filing with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the Company's fiscal year ended December 31, 2011, hereby constitutes and appoints JOSEPH M.

February 21, 2012 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K/A 1 betz.htm FORM 8-K/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 16, 2012 OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdic

February 14, 2012 EX-99.(I)

to Schedule 13G

EX-99.(I) 2 d299057dex99i.htm IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investme

February 14, 2012 SC 13G/A

OMG / OM Group, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 rrd368.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2011 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

February 14, 2012 EX-99.(II)

to Schedule 13G Joint Filing Agreement

Joint Filing Agreement Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 13, 2012 in connection with their beneficial ownership of OM Group, Inc.

February 14, 2012 SC 13G/A

OMG / OM Group, Inc. / AMERIPRISE FINANCIAL INC - SCHEDULE 13G AMENDMENT NO. 1 Passive Investment

Schedule 13G Amendment No. 1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #1 Under the Securities and Exchange Act of 1934 OM Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2011 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 10, 2012 SC 13G/A

OMG / OM Group, Inc. / GENDELL JEFFREY L ET AL - OM GROUP, INC. Passive Investment

SC 13G/A 1 p12-0362sc13ga.htm OM GROUP, INC. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) (Amendment No. 1) OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 670872100 (CUSIP N

February 8, 2012 SC 13G/A

OMG / OM Group, Inc. / VANGUARD GROUP INC Passive Investment

SC 13G/A 1 omgroupinc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.:1 )* Name of issuer: OM Group Inc Title of Class of Securities: Common Stock CUSIP Number: 670872100 Date of Event Which Requires Filing of this Statement: December 31, 2011 Check the appropriate box to designate the rule pursuant to which this S

January 17, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 16, 2012 OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incorporation) (Commission File Number

January 10, 2012 CORRESP

-

CORRESP 1 filename1.htm SUBMITTED VIA EDGAR Mr. Rufus Decker Accounting Branch Chief Division of Corporation Finance United States Securities and Exchange Commission Washington, DC 20549 Re: OM Group, Inc. Form 10-K for Fiscal Year Ended December 31, 2010 Filed February 24, 2011 Definitive Proxy Statement on Schedule 14A Filed March 31, 2011 Form 10-Q for the Period Ended September 30, 2011 Filed

November 17, 2011 EX-99

OM GROUP NAMES CHRISTOPHER M. HIX AS CHIEF FINANCIAL OFFICER

Exhibit 99 PRESS RELEASE OM GROUP NAMES CHRISTOPHER M. HIX AS CHIEF FINANCIAL OFFICER CLEVELAND ? November 16, 2011 ? OM Group, Inc. (NYSE: OMG) today announced the appointment of Christopher M. Hix as chief financial officer, effective January 3, 2012. Hix succeeds Kenneth Haber, who had previously announced his plan to retire at the end of this year. Mr. Hix brings more than 27 years of financia

November 17, 2011 EX-10

World Headquarters 127 Public Square – 1500 Key Tower – Cleveland, OH 44114-1221 Tel. 216.263.7475 – Fax 216.263.7757 – Email [email protected]

Exhibit 10 Joseph Scaminace Chairman & Chief Executive Officer November 14, 2011 Mr.

November 17, 2011 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 14, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1

November 9, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2011 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 001-12515 OM GROUP, INC. (Exact name of Reg

November 9, 2011 EX-99

OM GROUP REPORTS RESULTS FOR THIRD QUARTER OF 2011 - Growth driven by acquisitions and product demand across various end markets - - Loss from continuing operations was $2.18 per diluted share - - Income from continuing operations adjusted for specia

Exhibit 99 PRESS RELEASE OM GROUP REPORTS RESULTS FOR THIRD QUARTER OF 2011 - Growth driven by acquisitions and product demand across various end markets - - Loss from continuing operations was $2.

November 9, 2011 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 9, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-17

October 17, 2011 EX-99.3

Unaudited Pro Forma Condensed Combined Financial Information

EX-99.3 Exhibit 99.3 Unaudited Pro Forma Condensed Combined Financial Information The following unaudited pro forma condensed combined financial information is based on the historical financial statements of OM Group, Inc. ("OM Group" or “the Company”) and VAC Holding GmbH (“VAC Holding”), after giving effect to the business combination transaction between OM Group and VAC Holding on August 2, 201

October 17, 2011 EX-99.2

Unaudited interim consolidated financial statements of VAC Holding GmbH (in Euros) as of June 30, 2011 and December 31, 2010 and for the six months ended June 30, 2011 and 2010 prepared in accordance with International Financial Reporting Standards a

Exhibit 99.2 Unaudited interim consolidated financial statements of VAC Holding GmbH (in Euros) as of June 30, 2011 and December 31, 2010 and for the six months ended June 30, 2011 and 2010 prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board VAC Holding GmbH, Hanau, Condensed Consolidated Interim Financial Statements for

October 17, 2011 8-K/A

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 001-12515 52-1736882 (State or other jurisdiction of incorporation) (

October 17, 2011 EX-99.1

Audited consolidated financial statements of VAC Holding GmbH (in Euros) as of and for the years ended December 31, 2010 and 2009 prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standa

Exhibit 99.1 Audited consolidated financial statements of VAC Holding GmbH (in Euros) as of and for the years ended December 31, 2010 and 2009 prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board Independent Auditors? Report The Board of Directors OMG Germany Holding GmbH: We have audited the accompanying consolidated bal

October 7, 2011 8-K/A

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 10, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736

August 4, 2011 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2011 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incorporation) (Commission File Numb

August 4, 2011 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1736

August 4, 2011 EX-10.1

CREDIT AGREEMENT Dated as of August 2, 2011 OM GROUP, INC. HARKO C.V., as Borrowers, BANK OF AMERICA, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer The Other Lenders Party Hereto MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, P

EX-10.1 Exhibit 10.1 Execution Version Published Deal CUSIP Number: 67087NAC8 Published Term A Facility CUSIP Number: 67087NAD6 Published Term B Dollar Facility CUSIP Number: 67087NAE4 Published Term B Euro Facility CUSIP Number: 67087NAF1 Published Multicurrency Revolving Credit Facility CUSIP Number: 67087NAG9 Published U.S. Revolving Credit Facility CUSIP Number: 67087NAH7 CREDIT AGREEMENT Date

August 4, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2011 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 001-12515 OM GROUP, INC. (Exact name of Registra

August 4, 2011 EX-99

OM GROUP REPORTS INCREASE IN NET SALES DURING SECOND QUARTER OF 2011 - Growth driven by product demand across various end markets - - Cash flow from operations remains strong - - Outlook “even brighter” given recent acquisition of Vacuumschmelze -

Exhibit 99 PRESS RELEASE OM GROUP REPORTS INCREASE IN NET SALES DURING SECOND QUARTER OF 2011 - Growth driven by product demand across various end markets - - Cash flow from operations remains strong - - Outlook ?even brighter? given recent acquisition of Vacuumschmelze - CLEVELAND ? August 4, 2011 ? OM Group, Inc.

July 25, 2011 EX-99

OM GROUP ANNOUNCES PRELIMINARY RESULTS FOR SECOND QUARTER 2011 - Final results to be announced August 4, 2011 -

EX-99 Exhibit 99 OM GROUP ANNOUNCES PRELIMINARY RESULTS FOR SECOND QUARTER 2011 - Final results to be announced August 4, 2011 - CLEVELAND, OH – July 25, 2011 – OM Group, Inc.

July 25, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2011 OM GROUP, INC. (Exa

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-1

July 7, 2011 EX-10.1

12 SCHEDULE A Name and Address of Stockholder Number of Subject Shares VAC Luxembourg S.àr.l. 12F, Rue Guillaume J. Kroll, Luxembourg, Grand Duchy of Luxembourg 1,307,819

EX 10.1 Exhibit 10.1 CONFIDENTIAL This STOCKHOLDER AGREEMENT (this “Agreement”), dated as of July 3, 2011, is by and between OM Group, Inc., 127 Public Square, 1500 Key Tower, Cleveland, Ohio 44114-1221, USA, a Delaware corporation (“Parent”), VAC Luxembourg S.à r.l., a limited liability company (société à responsabilité limitée) organized under the Grand Duchy of Luxembourg, registered with the L

July 7, 2011 EX-2.1

notarial deed no. 1603W/2011

EX-2.1 2 dex21.htm EX-2.1 Exhibit 2.1 notarial deed no. 1603W/2011 Today, the third of July two thousand and eleven, appeared before me, Dr. Robert Walz, notary in Munich, Germany, with the official residence in Sonnenstrasse 9, 80331 Munich, Germany, in Prinzregentenstrasse 11, 80538 Munich, Germany, where I went upon request: 1. Mr. Jonathan M. Amitai, born on 11th of August 1980, with business

July 7, 2011 EX-99.1

Historical Financials of VAC

EX-99.1 Exhibit 99.1 Historical Financials of VAC The following summary financials are based on VAC’s financial statements prepared under IFRS. Summary Historical Financial Data FYE FYE FYE FYE Q1 LTM (Euros in millions) 2007 2008 2009 2010 Q1-10 Q1-11 Q1-11 Operating Performance Revenues Materials & Parts € 139 € 123 € 82 € 117 € 26 € 41 € 132 Cores & Components 121 108 87 138 29 44 153 Permanent

July 7, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 3, 2011 OM GROUP, INC. (Exac

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 3, 2011 OM GROUP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incorporation) (Commission File Nu

July 7, 2011 EX-99.2

Vacuumschmelze (VAC)

EX-99.2 Vacuumschmelze (VAC) Acquisition July 5, 2011 Exhibit 99.2 Forward-Looking Statements This presentation may include forward-looking statements for purposes of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based upon specific assumptions and are subject to uncertainties and factors relating to the company's operations

June 30, 2011 EX-99

OM GROUP ANNOUNCES RETIREMENT PLANS OF CHIEF FINANCIAL OFFICER KENNETH HABER — Company Retains Heidrick & Struggles To Conduct National Search —

Exhibit 99 Exhibit 99 PRESS RELEASE FOR IMMEDIATE RELEASE OM GROUP ANNOUNCES RETIREMENT PLANS OF CHIEF FINANCIAL OFFICER KENNETH HABER — Company Retains Heidrick & Struggles To Conduct National Search — CLEVELAND – June 28, 2011 – OM Group, Inc.

June 30, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 28, 2011 OM GROUP, INC. (Exa

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 28, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number)

June 10, 2011 EX-24

EX-24

POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That the undersigned has made, constituted and appointed, and by this instrument does make, constitute and appoint VALERIE GENTILE SACHS, ROBERT PIERCE, ELIZABETH SHAUGHNESSY and MICHELE CONNELL, acting individually, as her true and lawful attorney, for her, and in her name, place and stead, to affix, as attorney-in-fact, the signature of the undersigned to any reports or filings to the Securities and Exchange Commission on or in connection with Forms 3, 4, 5 or 144 with respect to transactions or holdings by the undersigned in equity securities issued by OM Group, Inc.

June 7, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 1, 2011 OM GROUP, INC. (Exac

e8vk UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 1, 2011 OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

May 27, 2011 EX-10.1

OM GROUP, INC. EXECUTIVE SEVERANCE PLAN

EX-10.1 2 l42799exv10w1.htm EX-10.1 Exhibit 10.1 OM GROUP, INC. EXECUTIVE SEVERANCE PLAN This Executive Severance Plan, effective as of , 2011 (the “Effective Date”), of OM Group, Inc. is for the benefit of certain employees of the Company and its Subsidiaries, on the terms and conditions hereinafter stated. Each Subsidiary will be responsible for providing the benefits to which its employees (who

May 27, 2011 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 23, 2011 OM GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-12515 52-1736882 (State or Other Jurisdiction (Commission (IRS Employer of Incorporation) F

May 11, 2011 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 l42688e8vk.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 10, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Com

May 6, 2011 PX14A6G

Shareholder Rebuttal to the OM Group Opposition Statement Regarding Developing Indicators for a Human Rights Policy

PX14A6G 1 f55110px14a6g.htm Shareholder Rebuttal to the OM Group Opposition Statement Regarding Developing Indicators for a Human Rights Policy NAME OF REGISTRANT: Detroit Province of the Society of Jesus NAME OF PERSON RELYING ON EXEMPTION: Detroit Province of the Society of Jesus ADDRESS OF PERSON RELYING ON EXEMPTION: 7303 West Seven Mile Road, Detroit, MI 48221 Shareholders encourage a “YES” v

May 5, 2011 EX-99

OM GROUP REPORTS REVENUE AND INCOME GROWTH IN 2011 FIRST QUARTER - Demand growth across all three business segments drives net sales up 9 percent - - Income from continuing operations per diluted share increases 36.5 percent to $1.01 -

Exhibit 99 OM GROUP REPORTS REVENUE AND INCOME GROWTH IN 2011 FIRST QUARTER - Demand growth across all three business segments drives net sales up 9 percent - - Income from continuing operations per diluted share increases 36.

May 5, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2011 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 001-12515 OM GROUP, INC. (Exact name of Registr

May 5, 2011 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 l42618e8vk.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 5, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Comm

May 2, 2011 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A 1 l42547defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as pe

March 31, 2011 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEF 14A 1 l42111def14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant þ Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statemen

March 11, 2011 SC 13G

SECURITIES AND EXCHANGE COMMISSION

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) OM Group, Inc. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 670872100 (CUSIP Number) March 1, 2011 (Date of event which requires filing of this

February 24, 2011 EX-10.12

EX-10.12

Exhibit 10.12 OM GROUP, INC. 1998 LONG-TERM INCENTIVE COMPENSATION PLAN 1. PURPOSE The purpose of the Plan is to advance the long-term interests of OM Group, Inc. by (i) motivating executive personnel by means of long-term incentive compensation, (ii) furthering the identity of interests of participants with those of the shareholders of the Corporation through the ownership and performance of the

February 24, 2011 EX-10.14

EX-10.14

EXHIBIT 10.14 Form of Non-Incentive Stock Option Agreement for Joseph Scaminace OM GROUP, INC. 1998 LONG-TERM INCENTIVE COMPENSATION PLAN STOCK OPTION AGREEMENT THIS STOCK OPTION AGREEMENT is entered into this day of August, 2005 but effective as of June 13, 2005 (being the date this option is granted) by and between OM GROUP, INC. (the "Company"), and Joseph M. Scaminace (the "Participant"), a Ke

February 24, 2011 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 Commission file number 001-12515 o TR

e10vk Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 24, 2011 EX-21

NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Compugraphics International Limited United Kingdom Compugraphics USA Inc. Delaware Cyantek Corporation Delaware Diehl & EaglePicher GmbH Germany EaglePicher Energy Products, ULC Canada EaglePicher Medic

exv21 Exhibit 21 NAME OF SUBSIDIARY JURISDICTION OF ORGANIZATION Compugraphics International Limited United Kingdom Compugraphics USA Inc.

February 24, 2011 EX-99

OM GROUP REPORTS STRONG REVENUE, INCOME GROWTH IN FOURTH-QUARTER AND FULL-YEAR 2010 — Recent acquisition and solid organic growth drive fourth-quarter net sales up 21 percent — — Fourth-quarter income from continuing operations increases to $0.77 per

Exhibit 99 PRESS RELEASE OM GROUP REPORTS STRONG REVENUE, INCOME GROWTH IN FOURTH-QUARTER AND FULL-YEAR 2010 ? Recent acquisition and solid organic growth drive fourth-quarter net sales up 21 percent ? ? Fourth-quarter income from continuing operations increases to $0.

February 24, 2011 EX-3.2

AMENDED AND RESTATED OM GROUP, INC.

EX-3.2 2 l41509exv3w2.htm EX-3.2 Exhibit 3.2 AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. As Adopted by the Stockholders October 7, 1993, and Further Amended by the Directors through February 8, 2011 AMENDED AND RESTATED BY-LAWS OF OM GROUP, INC. ARTICLE I OFFICES The Corporation may have such office(s) at such place(s), both within and outside the State of Delaware, as the Board of Directors fr

February 24, 2011 EX-10.33

AMENDED AND RESTATED CHANGE IN CONTROL AGREEMENT

EX-10.33 9 l41509exv10w33.htm EX-10.33 Exhibit 10.33 AMENDED AND RESTATED CHANGE IN CONTROL AGREEMENT This Amended and Restated Change in Control Agreement (this “Agreement”), dated as of , 20, is made by and between OM Group, Inc., a Delaware corporation (the “Company”), and (the “Executive”). WHEREAS, the Company considers it essential to the best interest of the Company and its stockholders tha

February 24, 2011 EX-10.19

SEVERANCE AGREEMENT

EX-10.19 7 l41509exv10w19.htm EX-10.19 Exhibit 10.19 SEVERANCE AGREEMENT THIS SEVERANCE AGREEMENT (“Agreement”) is entered into as of the 7th day of November, 2005, by and between OM Group, Inc., a Delaware corporation (the “Company”) and Valerie Gentile Sachs, an executive officer of the Company (the “Executive”). WHEREAS, the Company wishes to assure itself of the continuity of the Executive’s s

February 24, 2011 EX-10.20

OM GROUP, INC. 1998 LONG-TERM INCENTIVE COMPENSATION PLAN STOCK OPTION AGREEMENT

exv10w20 Exhibit 10.20 Form of Non-Incentive Stock Option Agreement OM GROUP, INC. 1998 LONG-TERM INCENTIVE COMPENSATION PLAN STOCK OPTION AGREEMENT THIS STOCK OPTION AGREEMENT, dated as of (being the date this option is granted) by and between OM GROUP, INC. (the “Company”), and (the “Participant”), a Key Employee of the Company or a subsidiary of the Company, is to evidence the non-incentive sto

February 24, 2011 EX-10.13

EX-10.13

EXHIBIT 10.13 EXECUTION COPY SEPARATION AGREEMENT This Separation Agreement (the "Agreement") is entered into this 17th day of October, 2003 between OM Group, Inc. ("OMG") and Thomas R. Miklich ("Executive"). RECITALS A. OMG and Executive entered into an Employment Agreement dated May 1, 2002, as amended on December 1, 2002 and July 31, 2003 (the "Employment Agreement"), regarding the employment o

February 24, 2011 EX-10.7

EX-10.7

Exhibit 10.7 JOINT VENTURE AGREEMENT - BETWEEN OMG B.V. GROUPE GEORGE FORREST S.A. AND LA GENERALE DES CARRIERES ET DES MINES THE PRESENT AGREEMENT IS ESTABLISHED IN ITS ENTIRETY BY ALL THE ELEMENTS HEREINAFTER SPECIFIED AND AS REFERRED TO IN THE RESPECTIVE ARTICLES I. DEFINITIONS II. SPECIAL PROVISIONS 1. Formation of a Joint Venture 2. Representations, Warranties, Title to Assets 3. Capital Cont

February 24, 2011 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 24, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission

February 24, 2011 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY The undersigned director of OM Group, Inc. (the ?Company?), a Delaware corporation, which anticipates filing with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the Company?s fiscal year ended December 31, 2010, hereby constitutes and appoints JOSEPH M.

February 11, 2011 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) Decem

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* OM GROUP INC (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 11, 2011 EX-99.I

to Schedule 13G

EX-99.I 2 c62805m4exv99wi.htm EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser — Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 11, 2011 SC 13G

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities and Exchange Act of 1934 OM Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2010 (Date of Event

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities and Exchange Act of 1934 OM Group, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 670872100 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: This Schedule is f

February 11, 2011 EX-99.II

to Schedule 13G Joint Filing Agreement

exv99wii Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 11, 2011 in connection with their beneficial ownership of OM Group, Inc.

February 10, 2011 SC 13G

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.:0 )*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.:0 )* Name of issuer: OM GROUP INC Title of Class of Securities: COMMON STOCK CUSIP Number: 670872100 Date of Event Which Requires Filing of this Statement: December 31, 2010 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: (X) Rule

January 25, 2011 EX-10

FORM OF INDEMNIFICATION AGREEMENT

EXHIBIT 10 FORM OF INDEMNIFICATION AGREEMENT This Indemnification Agreement, dated as of , 20 (this ?Agreement?), is made by and between OM Group, Inc.

January 25, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 19, 2011 OM GROUP, INC. (

e8vk UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 19, 2011 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number)

December 16, 2010 CORRESP

* * * *

SUBMITTED VIA EDGAR Mr. Rufus Decker Accounting Branch Chief Division of Corporation Finance United States Securities and Exchange Commission Washington, DC 20549 Re: OM Group, Inc. Form 10-K for Fiscal Year Ended December 31, 2009 Form 10-Q for the Fiscal Quarters Ended March 31, 2010, June 30, 2010 and September 30, 2010 File No. 1-12515 December 16, 2010 Dear Mr. Decker: In connection with the

December 15, 2010 CORRESP

FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2009

SUBMITTED VIA EDGAR Mr. Rufus Decker Accounting Branch Chief Division of Corporation Finance United States Securities and Exchange Commission Washington, DC 20549 Re: OM Group, Inc. Form 10-K for Fiscal Year Ended December 31, 2009 Form 10-Q for the Fiscal Quarters Ended March 31, 2010, June 30, 2010 and September 30, 2010 File No. 1-12515 December 15, 2010 Dear Mr. Decker: We have reviewed your N

November 4, 2010 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 4, 2010 OM GROUP, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-12515 (Commission File Number) 52-17

November 4, 2010 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

e10vq Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 4, 2010 EX-10.3

OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK AGREEMENT

exv10w3 Exhibit 10.3 Form of Restricted Stock Agreement (2010 Performance-based) OM GROUP, INC. 2007 INCENTIVE COMPENSATION PLAN RESTRICTED STOCK AGREEMENT THIS RESTRICTED STOCK AGREEMENT (“Agreement”) is dated as of the day of , (being the grant date of this restricted stock award), between OM Group, Inc., a Delaware corporation (“Company”), and (“Participant”). WHEREAS, the Company maintains the

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