Investor Delaware Management Holdings, Inc.
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Delaware Management Holdings, Inc. . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2026-05-15 13G/A KALU / Kaiser Aluminum Corporation 907,978 714,176
2026-05-15 13G/A IMAX / IMAX Corporation 4,267,949 3,704,207
2026-02-17 13G SOHU / Sohu.com Limited - Depositary Receipt (Common Stock) 2,776,878 2,831,951
2026-02-17 13G MBUU / Malibu Boats, Inc. 991,942
2026-02-17 13G MTX / Minerals Technologies Inc. 1,564,606
2026-02-17 13G FFBC / First Financial Bancorp. 5,894,326
2026-02-17 13G IMAX / IMAX Corporation 4,267,949
2026-02-17 13G KALU / Kaiser Aluminum Corporation 907,978
2026-02-17 13G AORT / Artivion, Inc. 2,613,471
2014-11-10 13G/A ABMD / Abiomed Inc. 3,052
2014-11-10 13G/A LRN / Stride, Inc. 698
2014-06-10 13G/A LRN / Stride, Inc. 4,101,185
2014-06-10 13G/A US92346NAB55 / VeriFone Systems, Inc 5,808,068
2014-06-10 13G/A JCOM / J2 Global Inc. 2,851,895
2014-06-10 13G/A 64126X201 / NeuStar, Inc. 1,869,090
2014-06-10 13G/A DIN / Dine Brands Global, Inc. 1,934,717
2014-02-18 13G SRC / Spirit Realty Capital, Inc. 1,164,357
2014-02-14 13G/A JCOM / J2 Global Inc. 5,544,272
2014-02-14 13G/A ELLI / Ellie Mae, Inc. 2,084,939
2014-02-14 13G/A ILG / Interior Logic Group Holdings Inc 3,147,276
2014-02-14 13G/A LRN / Stride, Inc. 6,717,320
2014-02-14 13G/A PLCM / Polycom, Inc. 0
2014-02-14 13G/A BLKB / Blackbaud, Inc. 3,141,354
2014-02-14 13G/A HPY / Heartland Payment Systems, Inc. 4,355,955
2014-02-14 13G/A SBH / Sally Beauty Holdings, Inc. 13,869,337
2014-02-14 13G/A IPCC / Infinity Property & Casualty Corp. 530,928
2014-02-14 13G/A ABMD / Abiomed Inc. 5,207,673
2014-02-14 13G/A DIN / Dine Brands Global, Inc. 2,947,149
2014-02-14 13G/A TECH / Bio-Techne Corporation 1,887,717
2014-02-14 13G/A 64126X201 / NeuStar, Inc. 6,241,070
2014-02-14 13G/A VRSN / VeriSign, Inc. 9,748,460
2014-02-14 13G/A ICE / Intercontinental Exchange, Inc. 3,081,790
2014-02-14 13G/A US92346NAB55 / VeriFone Systems, Inc 14,968,150
2014-02-14 13G QRTEA / Qurate Retail Inc - Series A 31,241,738
2014-02-14 13G EQC / Equity Commonwealth 9,640,931
2014-02-14 13G US62914B1008 / NIC Inc. 4,819,531
2014-02-14 13G JONE / Jones Energy, Inc. 785,974
2014-02-14 13G SOHU / Sohu.com Limited - Depositary Receipt (Common Stock) 2,776,878
2013-12-10 13G ELLI / Ellie Mae, Inc. 2,269,321
2013-09-10 13G/A 64126X201 / NeuStar, Inc. 6,465,598
2013-06-10 13G/A BMC / Bmc Software Inc 2,177,209
2013-03-08 13G/A PLCM / Polycom, Inc. 119,110
2013-03-08 13G IPCC / Infinity Property & Casualty Corp. 618,376
2013-03-01 13G/A TECH / Bio-Techne Corporation 1,854,916
2013-02-14 13G/A HPY / Heartland Payment Systems, Inc. 4,087,227
2013-02-14 13G/A LRN / Stride, Inc. 5,368,580
2013-02-14 13G/A DIN / Dine Brands Global, Inc. 2,569,595
2013-02-14 13G/A 4,266,425
2013-02-14 13G/A STRA / Strategic Education, Inc. 0
2013-02-14 13G/A ILG / Interior Logic Group Holdings Inc 3,236,789
2013-02-14 13G/A ABMD / Abiomed Inc. 4,823,265
2013-02-14 13G/A JCOM / J2 Global Inc. 5,712,886
2013-02-14 13G/A PLCM / Polycom, Inc. 21,535,775
2013-02-14 13G/A US92346NAB55 / VeriFone Systems, Inc 13,989,570
2013-02-14 13G/A BLKB / Blackbaud, Inc. 3,530,638
2013-02-14 13G/A SBH / Sally Beauty Holdings, Inc. 10,667,002
2013-02-14 13G 64126X201 / NeuStar, Inc. 4,464,778
2013-02-14 13G/A VRSN / VeriSign, Inc. 11,210,369
2013-02-14 13G/A YELP / Yelp Inc. 713,915
2013-02-11 13G BMC / Bmc Software Inc 14,177,031
2012-12-10 13G SBH / Sally Beauty Holdings, Inc. 10,336,081
2012-11-09 13G/A STRA / Strategic Education, Inc. 802,456
2012-11-09 13G/A ABMD / Abiomed Inc. 4,429,770
2012-11-09 13G US92346NAB55 / VeriFone Systems, Inc 13,942,749
2012-11-09 13G/A APOL / Apollo Education Group, Inc. 455,732
2012-07-10 13G YELP / Yelp Inc. 879,582
2012-06-07 13G/A HPY / Heartland Payment Systems, Inc. 3,971,436
2012-05-09 13G/A PLCM / Polycom, Inc. 18,460,786
2012-02-10 13G/A STRA / Strategic Education, Inc. 1,382,359
2012-02-10 13G/A VRSN / VeriSign, Inc. 16,697,957
2012-02-10 13G/A LRN / Stride, Inc. 4,818,803
2012-02-10 13G/A JCOM / J2 Global Inc. 5,029,765
2012-02-10 13G/A DIN / Dine Brands Global, Inc. 2,267,655
2012-02-10 13G PLCM / Polycom, Inc. 15,593,801
2012-02-10 13G ABMD / Abiomed Inc. 3,440,908
2012-02-10 13G PEET / Peet's Coffee & Tea, Inc. 1,682,581
2012-02-10 13G BLKB / Blackbaud, Inc. 3,215,349
2012-02-10 13G ILG / Interior Logic Group Holdings Inc 2,966,622
2012-02-10 13G 4,525,007
2012-02-10 13G HPY / Heartland Payment Systems, Inc. 3,738,266
2012-02-10 13G APOL / Apollo Education Group, Inc. 8,309,275
2012-01-10 13G LRN / Stride, Inc. 4,818,803