Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionLPL Financial LLC
Latest Disclosed Ownership284,270 shares
Latest Disclosed Value $ 8,451,343
LPL Financial LLC reports 18.57% increase in ownership of OLN / Olin Corporation

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 284,270 shares of Olin Corporation (US:OLN) valued at $8,451,347 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 239,746 shares of Olin Corporation. This represents a change in shares of 18.57% during the quarter. The current value of the position is $7,086,851 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)
2026-05-06 2026-03-31 13F OLIN COM PAR $1 680665205 284,270 44,524 18.57 8,451 69.26 0.0022
2026-02-11 2025-12-31 13F OLIN COM PAR $1 680665205 239,746 -22,862 -8.71 4,994 -23.91 0.0014
2025-11-12 2025-09-30 13F OLIN COM PAR $1 680665205 262,608 56,664 27.51 6,563 58.62 0.0019
2025-08-12 2025-06-30 13F OLIN COM PAR $1 680665205 205,944 7,221 3.63 4,137 -14.12 0.0014
2025-05-07 2025-03-31 13F OLIN COM PAR $1 680665205 198,723 60,246 43.51 4,817 2.93 0.0019
2025-02-11 2024-12-31 13F OLIN COM PAR $1 680665205 138,477 95,054 218.90 4,681 124.68 0.0019
2024-11-08 2024-09-30 13F OLIN COM PAR $1 680665205 43,423 -7,012 -13.90 2,083 -12.41 0.0009
2024-08-07 2024-06-30 13F OLIN COM PAR $1 680665205 50,435 -3,019 -5.65 2,378 -24.34 0.0012
2024-05-10 2024-03-31 13F OLIN COM PAR $1 680665205 53,454 -657 -1.21 3,143 7.67 0.0017
2024-02-14 2023-12-31 13F OLIN COM PAR $1 680665205 54,111 -1,846 -3.30 2,919 4.40 0.0018
2023-11-13 2023-09-30 13F OLIN COM PAR $1 680665205 55,957 -19,699 -26.04 2,797 -28.07 0.0020
2023-07-31 2023-06-30 13F OLIN COM PAR $1 680665205 75,656 -9,487 -11.14 3,888 -17.74 0.0028
2023-05-10 2023-03-31 13F OLIN COM PAR $1 680665205 85,143 2,212 2.67 4,725 7.63 0.0037
2023-02-07 2022-12-31 13F OLIN COM PAR $1 680665205 82,931 -5,685 -6.42 4,390 15.53 0.0038
2022-11-14 2022-09-30 13F OLIN COM PAR $1 680665205 88,616 7,493 9.24 3,800 1.23 0.0037
2022-08-12 2022-06-30 13F OLIN COM PAR $1 680665205 81,123 8,982 12.45 3,754 -0.48 0.0036
2022-05-16 2022-03-31 13F OLIN COM PAR $1 680665205 72,141 4,711 6.99 3,772 -2.76 0.0032
2022-02-14 2021-12-31 13F OLIN COM PAR $1 680665205 67,430 1,976 3.02 3,879 22.83 0.0033
2021-11-15 2021-09-30 13F OLIN COM PAR $1 680665205 65,454 6,071 10.22 3,158 14.96 0.0030
2021-08-13 2021-06-30 13F OLIN COM PAR $1 680665205 59,383 6,531 12.36 2,747 36.87 0.0028
2021-05-14 2021-03-31 13F OLIN COM PAR $1 680665205 52,852 24,623 87.23 2,007 189.61 0.0023
2021-02-12 2020-12-31 13F OLIN COM PAR $1 680665205 28,229 668 2.42 693 103.23 0.0009
2020-11-09 2020-09-30 13F OLIN COM PAR $1 680665205 27,561 -14,471 -34.43 341 -29.40 0.0005
2020-08-13 2020-06-30 13F OLIN COM PAR $1 680665205 42,032 18,710 80.22 483 77.57 0.0008
2020-05-14 2020-03-31 13F OLIN COM PAR $1 680665205 23,322 -4,076 -14.88 272 -42.49 0.0006
2020-02-14 2019-12-31 13F OLIN COM PAR $1 680665205 27,398 -12,218 -30.84 473 -36.25 0.0009
2019-11-13 2019-09-30 13F OLIN COM PAR $1 680665205 39,616 25,505 180.75 742 140.13 0.0015
2019-08-09 2019-06-30 13F OLIN COM PAR $1 680665205 14,111 -5,956 -29.68 309 -33.41 0.0007
2019-05-08 2019-03-31 13F OLIN COM PAR $1 680665205 20,067 -6,369 -24.09 464 -12.78 0.0011
2019-02-07 2018-12-31 13F OLIN COM PAR $1 680665205 26,436 -8,713 -24.79 532 -41.09 0.0014
2018-11-14 2018-09-30 13F OLIN COM PAR $1 680665205 35,149 -437 -1.23 903 -11.64 0.0022
2018-08-14 2018-06-30 13F OLIN COM PAR $1 680665205 35,586 -12,673 -26.26 1,022 -30.33 0.0027
2018-05-15 2018-03-31 13F OLIN COM PAR $1 680665205 48,259 -5,933 -10.95 1,467 -23.91 0.0040
2018-02-14 2017-12-31 13F OLIN COM PAR $1 680665205 54,192 5,068 10.32 1,928 14.56 0.0059
2017-11-14 2017-09-30 13F OLIN COM PAR $1 680665205 49,124 2,761 5.96 1,683 19.87 0.0059
2017-08-14 2017-06-30 13F OLIN COM PAR $1 680665205 46,363 -1,345 -2.82 1,404 -8.89 0.0053
2017-05-15 2017-03-31 13F OLIN COM PAR $1 680665205 47,708 39,024 449.38 1,541 584.89 0.0105
2017-02-13 2016-12-31 13F OLIN COM PAR $1 680665205 8,684 8,684 0.00 225 0.0017
2016-08-15 2016-06-30 13F OLIN COM PAR $1 680665205 0 -70,400 -100.00 0 -100.00
2016-05-16 2016-03-31 13F OLIN COM PAR $1 680665205 70,400 30,233 75.27 1,188 68.75 0.0033
2016-02-12 2015-12-31 13F OLIN COM PAR $1 680665205 40,167 40,167 0.00 704 0.0020
2015-08-14 2015-06-30 13F OLIN COM PAR $1 680665205 0 -6,537 -100.00 0 -100.00
2015-05-14 2015-03-31 13F OLIN COM PAR $1 680665205 6,537 -9,489 -59.21 209 -52.71 0.0011
2014-05-12 2014-03-31 13F OLIN COM PAR $1 680665205 16,026 -1,678 -9.48 442 -13.50 0.0027
2014-02-13 2013-12-31 13F OLIN COM PAR $1 680665205 17,704 4,875 38.00 511 74.40 0.0032
2013-11-04 2013-09-30 13F OLIN COM PAR $1 680665205 12,829 1,782 16.13 293 10.98 0.0020
2013-08-15 2013-06-30 13F OLIN COM PAR $1 680665205 11,047 11,047 264 0.0019
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.