Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership19,273 shares
Latest Disclosed Value $ 572,978
Pnc Financial Services Group, Inc. reports 1.15% increase in ownership of OLN / Olin Corporation

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 19,273 shares of Olin Corporation (US:OLN) valued at $572,986 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 19,053 shares of Olin Corporation. This represents a change in shares of 1.15% during the quarter. The current value of the position is $480,476 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)
2026-05-08 2026-03-31 13F OLIN COM PAR $1 680665205 19,273 220 1.15 573 44.44 0.0001
2026-02-06 2025-12-31 13F OLIN COM PAR $1 680665205 19,053 -891 -4.47 397 -20.48 0.0002
2025-11-07 2025-09-30 13F OLIN COM PAR $1 680665205 19,944 974 5.13 498 30.71 0.0003
2025-08-08 2025-06-30 13F OLIN COM PAR $1 680665205 18,970 1,415 8.06 381 -10.35 0.0002
2025-05-09 2025-03-31 13F OLIN COM PAR $1 680665205 17,555 347 2.02 426 -26.85 0.0002
2025-02-07 2024-12-31 13F OLIN COM PAR $1 680665205 17,208 -3,331 -16.22 582 -41.02 0.0004
2024-11-08 2024-09-30 13F OLIN COM PAR $1 680665205 20,539 -1,538 -6.97 985 -5.29 0.0006
2024-08-09 2024-06-30 13F OLIN COM PAR $1 680665205 22,077 -226 -1.01 1,041 -20.67 0.0007
2024-05-10 2024-03-31 13F OLIN COM PAR $1 680665205 22,303 65 0.29 1,311 9.34 0.0009
2024-03-22 2023-12-31 13F/A-1 OLIN COM PAR $1 680665205 22,238 28 0.13 1,200 8.02 0.0009
2024-02-09 2023-12-31 13F OLIN COM PAR $1 680665205 22,238 28 1,200 0.0002
2023-11-13 2023-09-30 13F OLIN COM PAR $1 680665205 22,210 -242 -1.08 1,110 -3.73 0.0010
2023-08-11 2023-06-30 13F OLIN COM PAR $1 680665205 22,452 -2,840 -11.23 1,154 -17.82 0.0010
2023-05-15 2023-03-31 13F OLIN COM PAR $1 680665205 25,292 786 3.21 1,404 8.17 0.0012
2023-02-10 2022-12-31 13F OLIN COM PAR $1 680665205 24,506 3 0.01 1,297 23.41 0.0012
2022-11-10 2022-09-30 13F OLIN COM PAR $1 680665205 24,503 -650 -2.58 1,051 -9.79 0.0011
2022-08-12 2022-06-30 13F OLIN COM PAR $1 680665205 25,153 295 1.19 1,165 -10.38 0.0011
2022-05-12 2022-03-31 13F OLIN COM PAR $1 680665205 24,858 1,143 4.82 1,300 -4.69 0.0011
2022-02-11 2021-12-31 13F OLIN Common Stock 680665205 23,715 1,499 6.75 1,364 27.24 0.0011
2021-11-05 2021-09-30 13F OLIN Common Stock 680665205 22,216 2,426 12.26 1,072 17.03 0.0010
2021-08-06 2021-06-30 13F OLIN Common Stock 680665205 19,790 -788 -3.83 916 17.14 0.0008
2021-05-07 2021-03-31 13F OLIN Common Stock 680665205 20,578 1,958 10.52 782 70.74 0.0008
2021-02-12 2020-12-31 13F OLIN Common Stock 680665205 18,620 1,331 7.70 458 113.02 0.0005
2020-11-06 2020-09-30 13F OLIN Common Stock 680665205 17,289 -34,511 -66.62 215 -63.80 0.0003
2020-08-28 2020-06-30 13F/A-1 OLIN Common Stock 680665205 51,800 14,878 40.30 594 37.82 0.0008
2020-08-07 2020-06-30 13F OLIN Common Stock 680665205 51,800 14,878 594 123.3372
2020-05-08 2020-03-31 13F OLIN Common Stock 680665205 36,922 -21,230 -36.51 431 -56.99 0.0005
2020-02-07 2019-12-31 13F OLIN Common Stock 680665205 58,152 -109,525 -65.32 1,002 -68.07 0.0010
2019-11-08 2019-09-30 13F OLIN Common Stock 680665205 167,677 99,528 146.04 3,138 110.18 0.0031
2019-08-09 2019-06-30 13F OLIN Common Stock 680665205 68,149 6,668 10.85 1,493 4.92 0.0015
2019-05-10 2019-03-31 13F OLIN Common Stock 680665205 61,481 4,253 7.43 1,423 23.63 0.0014
2019-02-08 2018-12-31 13F OLIN Common Stock 680665205 57,228 -9,394 -14.10 1,151 -32.69 0.0013
2018-11-09 2018-09-30 13F OLIN Common Stock 680665205 66,622 3,538 5.61 1,710 -5.58 0.0016
2018-08-10 2018-06-30 13F OLIN Common Stock 680665205 63,084 -6,401 -9.21 1,811 -14.21 0.0018
2018-05-11 2018-03-31 13F OLIN Common Stock 680665205 69,485 1,138 1.67 2,111 -13.20 0.0021
2018-02-09 2017-12-31 13F OLIN Common Stock 680665205 68,347 3,775 5.85 2,432 9.90 0.0024
2017-11-13 2017-09-30 13F OLIN Common Stock 680665205 64,572 3,065 4.98 2,213 18.79 0.0023
2017-08-11 2017-06-30 13F OLIN CORP 680665205 61,507 1,242 2.06 1,863 -5.96 0.0020
2017-05-12 2017-03-31 13F OLIN Common Stock 680665205 60,265 -1,500 -2.43 1,981 25.22 0.0022
2017-02-10 2016-12-31 13F OLIN Common Stock 680665205 61,765 2,934 4.99 1,582 30.96 0.0018
2016-11-04 2016-09-30 13F OLIN Common Stock 680665205 58,831 2,375 4.21 1,208 -13.84 0.0014
2016-08-05 2016-06-30 13F OLIN Common Stock 680665205 56,456 -1,391 -2.40 1,402 39.50 0.0016
2016-05-06 2016-03-31 13F OLIN Common Stock 680665205 57,847 11,965 26.08 1,005 26.89 0.0012
2016-02-05 2015-12-31 13F OLIN Common Stock 680665205 45,882 14,424 45.85 792 49.72 0.0009
2015-11-06 2015-09-30 13F OLIN Common Stock 680665205 31,458 1,093 3.60 529 -35.41 0.0006
2015-08-05 2015-06-30 13F OLIN Common Stock 680665205 30,365 281 0.93 819 -14.95 0.0009
2015-05-08 2015-03-31 13F OLIN Common Stock 680665205 30,084 560 1.90 963 43.52 0.0011
2015-02-06 2014-12-31 13F/A-1 OLIN COM PAR $1 680665205 29,524 78 0.26 671 -9.69 0.0007
2015-02-06 2014-12-31 13F OLIN COM PAR $1 680665205 29,524 671
2014-11-07 2014-09-30 13F OLIN COM PAR $1 680665205 29,446 -830 -2.74 743 -8.83 0.0009
2014-08-08 2014-06-30 13F OLIN COM PAR $1 680665205 30,276 -1,974 -6.12 815 -8.53 0.0010
2014-05-09 2014-03-31 13F OLIN COM PAR $1 680665205 32,250 -774 -2.34 891 -6.51 0.0012
2014-02-07 2013-12-31 13F OLIN COM PAR $1 680665205 33,024 179 0.54 953 25.89 0.0013
2013-11-01 2013-09-30 13F OLIN COM PAR $1 680665205 32,845 -465 -1.40 757 -5.02 0.0011
2013-08-02 2013-06-30 13F OLIN COM PAR $1 680665205 33,310 33,310 797 0.0012
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.