Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionAllianz Asset Management GmbH
Latest Disclosed Ownership470,865 shares
Latest Disclosed Value $ 13,998,816
Allianz Asset Management GmbH reports 39.21% increase in ownership of OLN / Olin Corporation

On May 11, 2026 - Allianz Asset Management GmbH filed a 13F-HR form disclosing ownership of 470,865 shares of Olin Corporation (US:OLN) valued at $13,998,816 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 338,243 shares of Olin Corporation. This represents a change in shares of 39.21% during the quarter. The current value of the position is $11,555,027 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F OLIN COM PAR $1 680665205 470,865 132,622 39.21 13,999 98.69 0.0055
2026-02-11 2025-12-31 13F OLIN COM PAR $1 680665205 338,243 114,565 51.22 7,046 26.05 0.0071
2025-11-04 2025-09-30 13F OLIN COM PAR $1 680665205 223,678 139,110 164.49 5,590 229.15 0.0062
2025-07-28 2025-06-30 13F OLIN COM PAR $1 680665205 84,568 -465,328 -84.62 1,699 -87.26 0.0020
2025-05-05 2025-03-31 13F OLIN COM PAR $1 680665205 549,896 167,181 43.68 13,329 3.05 0.0174
2025-02-03 2024-12-31 13F OLIN COM PAR $1 680665205 382,715 157,137 69.66 12,936 19.51 0.0173
2024-11-13 2024-09-30 13F OLIN COM PAR $1 680665205 225,578 124,607 123.41 10,823 127.37 0.0151
2024-08-13 2024-06-30 13F OLIN COM PAR $1 680665205 100,971 100,971 4,761 0.0071
2022-11-08 2022-09-30 13F OLIN COM PAR $1 680665205 0 -16,246 -100.00 0 -100.00
2022-08-12 2022-06-30 13F OLIN COM PAR $1 680665205 16,246 -207,212 -92.73 752 -93.56 0.0007
2022-05-13 2022-03-31 13F OLIN COM PAR $1 680665205 223,458 21,347 10.56 11,682 0.49 0.0087
2022-02-11 2021-12-31 13F OLIN COM PAR $1 680665205 202,111 -15,767 -7.24 11,625 10.58 0.0081
2021-11-10 2021-09-30 13F OLIN COM PAR $1 680665205 217,878 -132,716 -37.85 10,513 -35.18 0.0082
2021-08-16 2021-06-30 13F OLIN COM PAR $1 680665205 350,594 200,630 133.79 16,219 184.79 0.0138
2021-05-13 2021-03-31 13F OLIN COM PAR $1 680665205 149,964 123,690 470.77 5,695 782.95 0.0055
2021-02-16 2020-12-31 13F OLIN COM PAR $1 680665205 26,274 -30,461 -53.69 645 -8.12 0.0006
2020-11-13 2020-09-30 13F OLIN COM PAR $1 680665205 56,735 56,735 115.94 702 8.84 0.0008
2019-04-17 2017-06-30 13F/A-1 OLIN COM PAR $1 680665205 0 -54,777 -100.00 0 -100.00
2019-04-17 2017-03-31 13F/A-1 OLIN COM PAR $1 680665205 54,777 -26,315 -32.45 1,801 -13.29 0.0018
2017-05-15 2017-03-31 13F OLIN COM PAR $1 680665205 54,777 -26,315 1,801
2019-04-17 2016-12-31 13F/A-2 OLIN COM PAR $1 680665205 81,092 -39,195 -32.58 2,077 -15.53 0.0019
2017-03-14 2016-12-31 13F/A-1 OLIN COM PAR $1 680665205 81,092 0 2,077 0.0019
2017-02-13 2016-12-31 13F OLIN COM PAR $1 680665205 81,092 2,077
2019-04-17 2016-09-30 13F/A-1 OLIN COM PAR $1 680665205 120,287 -14,276 -10.61 2,459 -26.42 0.0024
2016-11-14 2016-09-30 13F OLIN COM PAR $1 680665205 120,287 -14,276 2,459
2017-01-24 2016-06-30 13F/A-1 OLIN COM PAR $1 680665205 134,563 77,501 135.82 3,342 236.90 0.0036
2016-08-12 2016-06-30 13F OLIN COM PAR $1 680665205 134,563 3,342
2016-05-13 2016-03-31 13F OLIN COM PAR $1 680665205 57,062 26,343 85.75 992 85.77 0.0011
2017-01-24 2015-12-31 13F/A-1 OLIN COM PAR $1 680665205 30,719 -4,401 -12.53 534 -9.49 0.0006
2016-02-16 2015-12-31 13F OLIN COM PAR $1 680665205 30,719 534
2017-01-24 2015-09-30 13F/A-2 OLIN COM PAR $1 680665205 35,120 -74,550 -67.98 590 -80.05 0.0007
2015-11-20 2015-09-30 13F/A-1 OLIN COM PAR $1 680665205 35,120 0 590 0.0006
2015-11-13 2015-09-30 13F OLIN COM PAR $1 680665205 35,120 590
2015-09-22 2015-06-30 13F/A-1 OLIN COM PAR $1 680665205 109,670 -927,212 -89.42 2,957 -91.10 0.0032
2015-08-14 2015-06-30 13F OLIN COM PAR $1 680665205 107,885 2,908
2017-01-24 2015-03-31 13F/A-1 OLIN COM PAR $1 680665205 1,036,882 -3,141,374 -75.18 33,221 -65.08 0.0379
2015-05-15 2015-03-31 13F OLIN COM PAR $1 680665205 1,036,882 33,221,700
2015-02-17 2014-12-31 13F OLIN COM PAR $1 680665205 4,178,256 -210,239 -4.79 95,139 -14.14 0.1058
2014-11-14 2014-09-30 13F OLIN COM PAR $1 680665205 4,388,495 82,580 1.92 110,810 -4.40 0.1336
2014-08-13 2014-06-30 13F OLIN COM PAR $1 680665205 4,305,915 -122,761 -2.77 115,915 -5.20 0.1455
2014-05-28 2014-03-31 13F/A-1 OLIN COM PAR $1 680665205 4,428,676 -378,237 -7.87 122,276 -11.83 0.1470
2014-05-14 2014-03-31 13F OLIN COM PAR $1 680665205 4,428,676 122,276
2014-02-13 2013-12-31 13F OLIN COM PAR $1 680665205 4,806,913 259,753 5.71 138,680 32.20 0.1767
2013-11-14 2013-09-30 13F OLIN COM PAR $1 680665205 4,547,160 3,044,850 202.68 104,903 191.92 0.1388
2013-08-14 2013-06-30 13F OLIN COM PAR $1 680665205 1,502,310 1,502,310 35,936 0.0510
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.