Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership225,438 shares
Latest Disclosed Value $ 6,702,279
Ameriprise Financial Inc reports 20.47% increase in ownership of OLN / Olin Corporation

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 225,438 shares of Olin Corporation (US:OLN) valued at $6,702,272 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 187,131 shares of Olin Corporation. This represents a change in shares of 20.47% during the quarter. The current value of the position is $5,620,169 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F OLIN COM 680665205 225,438 38,307 20.47 6,702 71.98 0.0003
2026-02-17 2025-12-31 13F OLIN COM 680665205 187,131 -5,881 -3.05 3,898 -19.20 0.0002
2025-11-14 2025-09-30 13F OLIN COM 680665205 193,012 -59,471 -23.55 4,823 -4.91 0.0011
2025-08-14 2025-06-30 13F OLIN COM 680665205 252,483 12,936 5.40 5,072 -12.64 0.0013
2025-05-14 2025-03-31 13F OLIN COM 680665205 239,547 92,001 62.35 5,807 16.42 0.0016
2025-02-14 2024-12-31 13F OLIN COM 680665205 147,546 -4,953 -3.25 4,987 -31.83 0.0013
2024-11-14 2024-09-30 13F OLIN COM 680665205 152,499 -17,201 -10.14 7,317 -8.56 0.0019
2024-08-14 2024-06-30 13F OLIN COM 680665205 169,700 -10,374 -5.76 8,001 -24.43 0.0022
2024-05-15 2024-03-31 13F OLIN COM 680665205 180,074 -512 -0.28 10,589 8.68 0.0029
2024-02-14 2023-12-31 13F OLIN COM 680665205 180,586 -16,282 -8.27 9,743 -0.92 0.0029
2023-11-14 2023-09-30 13F OLIN COM 680665205 196,868 -872 -0.44 9,832 -3.24 0.0032
2023-08-14 2023-06-30 13F OLIN COM 680665205 197,740 5,658 2.95 10,162 -4.68 0.0032
2023-05-22 2023-03-31 13F/A-1 OLIN COM 680665205 192,082 -13,126 -6.40 10,661 -1.88 0.0035
2023-05-15 2023-03-31 13F OLD SECOND BANCORP COM 680665205 192,082 -13,126 10,661 0.0006
2023-02-14 2022-12-31 13F OLIN COM 680665205 205,208 -30,293 -12.86 10,864 7.60 0.0037
2022-11-14 2022-09-30 13F OLIN COM 680665205 235,501 -284,915 -54.75 10,097 -58.08 0.0037
2022-08-15 2022-06-30 13F OLIN COM 680665205 520,416 58,972 12.78 24,085 -0.17 0.0084
2022-05-16 2022-03-31 13F OLIN COM 680665205 461,444 136,651 42.07 24,125 29.13 0.0071
2022-02-14 2021-12-31 13F OLIN COM 680665205 324,793 52,454 19.26 18,683 42.29 0.0052
2021-11-15 2021-09-30 13F OLIN COM 680665205 272,339 -15,631 -5.43 13,130 -1.44 0.0042
2021-08-16 2021-06-30 13F OLIN COM 680665205 287,970 17,770 6.58 13,322 29.88 0.0041
2021-05-17 2021-03-31 13F OLIN COM 680665205 270,200 18,262 7.25 10,257 65.78 0.0034
2021-02-12 2020-12-31 13F OLIN COM 680665205 251,938 -22,330 -8.14 6,187 82.18 0.0022
2020-11-16 2020-09-30 13F OLIN COM 680665205 274,268 -43,464 -13.68 3,396 -6.96 0.0014
2020-08-14 2020-06-30 13F OLIN COM 680665205 317,732 -22,687 -6.66 3,650 -8.13 0.0016
2020-05-15 2020-03-31 13F OLIN COM 680665205 340,419 -38,178 -10.08 3,973 -39.16 0.0021
2020-02-14 2019-12-31 13F OLIN COM 680665205 378,597 -31,765 -7.74 6,530 -15.00 0.0027
2019-11-14 2019-09-30 13F OLIN COM 680665205 410,362 -70,156 -14.60 7,682 -27.03 0.0034
2019-08-14 2019-06-30 13F OLIN COM 680665205 480,518 -13,655 -2.76 10,528 -7.93 0.0047
2019-05-15 2019-03-31 13F OLIN COM 680665205 494,173 -16,426 -3.22 11,435 11.35 0.0053
2019-02-14 2018-12-31 13F OLIN COM 680665205 510,599 -244,315 -32.36 10,269 -47.03 0.0051
2018-11-14 2018-09-30 13F OLIN COM 680665205 754,914 -880 -0.12 19,387 -10.68 0.0068
2018-08-14 2018-06-30 13F OLIN COM 680665205 755,794 -512,112 -40.39 21,705 -43.66 0.0096
2018-05-14 2018-03-31 13F OLIN COM 680665205 1,267,906 36,795 2.99 38,526 -12.05 0.0174
2018-02-12 2017-12-31 13F OLIN COM 680665205 1,231,111 -306,909 -19.95 43,805 -16.84 0.0200
2017-11-07 2017-09-30 13F OLIN COM 680665205 1,538,020 18,756 1.23 52,675 14.50 0.0251
2017-08-10 2017-06-30 13F OLIN COM 680665205 1,519,264 -627,123 -29.22 46,005 -34.79 0.0230
2017-05-05 2017-03-31 13F OLIN COM 680665205 2,146,387 83,276 4.04 70,552 33.53 0.0365
2017-02-03 2016-12-31 13F OLIN COM 680665205 2,063,111 614,455 42.42 52,837 77.74 0.0289
2016-11-08 2016-09-30 13F OLIN COM 680665205 1,448,656 -400,682 -21.67 29,727 -35.29 0.0167
2016-08-08 2016-06-30 13F OLIN COM 680665205 1,849,338 1,081,112 140.73 45,937 244.17 0.0269
2016-05-12 2016-03-31 13F OLIN COM 680665205 768,226 12,301 1.63 13,347 2.30 0.0080
2016-02-11 2015-12-31 13F OLIN COM 680665205 755,925 213,010 39.23 13,047 42.98 0.0077
2015-11-12 2015-09-30 13F OLIN COM 680665205 542,915 -248,361 -31.39 9,125 -57.21 0.0057
2015-08-13 2015-06-30 13F OLIN COM 680665205 791,276 39,594 5.27 21,327 -11.44 0.0121
2015-05-14 2015-03-31 13F OLIN COM 680665205 751,682 5,103 0.68 24,082 41.67 0.0138
2015-02-13 2014-12-31 13F OLIN COM 680665205 746,579 -87,791 -10.52 16,999 -19.31 0.0099
2014-11-14 2014-09-30 13F OLIN COM 680665205 834,370 -13,733 -1.62 21,068 -7.72 0.0127
2014-08-13 2014-06-30 13F OLIN COM 680665205 848,103 -13,338 -1.55 22,831 -4.01 0.0135
2014-05-14 2014-03-31 13F OLIN COM 680665205 861,441 15,318 1.81 23,784 -2.57 0.0143
2014-02-14 2013-12-31 13F OLIN COM 680665205 846,123 634,104 299.08 24,412 399.02 0.0148
2013-11-14 2013-09-30 13F OLIN COM 680665205 212,019 -2,577,802 -92.40 4,892 -92.67 0.0032
2013-08-14 2013-06-30 13F OLIN COM 680665205 2,789,821 2,789,821 66,733 0.0462
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.