Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionFifth Third Bancorp
Latest Disclosed Ownership100,847 shares
Latest Disclosed Value $ 2,998,195
Fifth Third Bancorp reports 9,748.34% increase in ownership of OLN / Olin Corporation

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 100,847 shares of Olin Corporation (US:OLN) valued at $2,998,181 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,024 shares of Olin Corporation. This represents a change in shares of 9,748.34% during the quarter. The current value of the position is $2,597,819 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)
2026-05-01 2026-03-31 13F OLIN COM PAR $1 680665205 100,847 99,823 9,748.34 2,998 14,176.19 0.0055
2026-02-02 2025-12-31 13F OLIN COM PAR $1 680665205 1,024 -3 -0.29 21 -16.00 0.0001
2025-11-07 2025-09-30 13F OLIN COM PAR $1 680665205 1,027 -489 -32.26 26 -16.67 0.0001
2025-07-15 2025-06-30 13F OLIN COM PAR $1 680665205 1,516 310 25.70 30 3.45 0.0001
2025-04-15 2025-03-31 13F OLIN COM PAR $1 680665205 1,206 743 160.48 29 93.33 0.0001
2025-01-21 2024-12-31 13F OLIN COM PAR $1 680665205 463 -42 -8.32 16 -37.50 0.0001
2024-10-17 2024-09-30 13F OLIN COM PAR $1 680665205 505 -4,924 -90.70 24 -90.59 0.0001
2024-07-22 2024-06-30 13F OLIN COM PAR $1 680665205 5,429 4,571 532.75 256 410.00 0.0010
2024-04-23 2024-03-31 13F OLIN COM PAR $1 680665205 858 198 30.00 50 42.86 0.0002
2024-01-19 2023-12-31 13F OLIN COM PAR $1 680665205 660 88 15.38 36 25.00 0.0002
2023-10-31 2023-09-30 13F OLIN COM PAR $1 680665205 572 84 17.21 29 12.00 0.0001
2023-07-26 2023-06-30 13F OLIN COM PAR $1 680665205 488 102 26.42 25 19.05 0.0001
2023-04-24 2023-03-31 13F OLIN COM PAR $1 680665205 386 -69 -15.16 21 -12.50 0.0001
2023-01-25 2022-12-31 13F OLIN COM PAR $1 680665205 455 -533 -53.95 24 -42.86 0.0001
2022-10-25 2022-09-30 13F OLIN COM PAR $1 680665205 988 -210 -17.53 42 -23.64 0.0002
2022-08-04 2022-06-30 13F OLIN COM PAR $1 680665205 1,198 177 17.34 55 3.77 0.0003
2022-04-19 2022-03-31 13F OLIN COM PAR $1 680665205 1,021 -7,619 -88.18 53 -89.34 0.0002
2022-02-01 2021-12-31 13F OLIN COM PAR $1 680665205 8,640 677 8.50 497 29.43 0.0019
2021-10-15 2021-09-30 13F OLIN COM PAR $1 680665205 7,963 7,228 983.40 384 1,029.41 0.0017
2021-08-06 2021-06-30 13F OLIN COM PAR $1 680665205 735 35 5.00 34 25.93 0.0001
2021-05-07 2021-03-31 13F OLIN COM PAR $1 680665205 700 0 0.00 27 58.82 0.0001
2021-02-16 2020-12-31 13F OLIN COM PAR $1 680665205 700 600 600.00 17 1,600.00 0.0001
2020-11-09 2020-09-30 13F OLIN COM PAR $1 680665205 100 0 0.00 1 0.00 0.0000
2020-08-05 2020-06-30 13F OLIN COM PAR $1 680665205 100 0 0.00 1 0.00 0.0000
2020-05-05 2020-03-31 13F OLIN COM PAR $1 680665205 100 0 0.00 1 -50.00 0.0000
2020-02-14 2019-12-31 13F OLIN COM PAR $1 680665205 100 -74 -42.53 2 -33.33 0.0000
2019-11-14 2019-09-30 13F OLIN COM PAR $1 680665205 174 -483 -73.52 3 -78.57 0.0000
2019-08-07 2019-06-30 13F OLIN COM PAR $1 680665205 657 -210 -24.22 14 -30.00 0.0001
2019-05-14 2019-03-31 13F OLIN COM PAR $1 680665205 867 -236 -21.40 20 -9.09 0.0001
2019-02-14 2018-12-31 13F OLIN COM PAR $1 680665205 1,103 -433 -28.19 22 -43.59 0.0002
2018-11-14 2018-09-30 13F OLIN COM PAR $1 680665205 1,536 -374 -19.58 39 -29.09 0.0002
2018-08-14 2018-06-30 13F OLIN COM PAR $1 680665205 1,910 669 53.91 55 44.74 0.0004
2018-05-15 2018-03-31 13F OLIN COM PAR $1 680665205 1,241 -1,143 -47.94 38 -55.29 0.0003
2018-02-14 2017-12-31 13F OLIN COM PAR $1 680665205 2,384 -4,708 -66.38 85 -65.02 0.0006
2017-11-14 2017-09-30 13F OLIN COM PAR $1 680665205 7,092 -31,498 -81.62 243 -79.21 0.0017
2017-08-11 2017-06-30 13F OLIN COM PAR $1 680665205 38,590 -7,325 -15.95 1,169 -22.53 0.0086
2017-05-12 2017-03-31 13F OLIN COM PAR $1 680665205 45,915 -3,440 -6.97 1,509 19.38 0.0114
2017-02-13 2016-12-31 13F/A-1 OLIN COM PAR $1 680665205 49,355 -17,052 -25.68 1,264 -7.26 0.0102
2017-02-09 2016-12-31 13F OLIN COM PAR $1 680665205 66,407 0 1,363 0.0113
2016-11-10 2016-09-30 13F OLIN COM PAR $1 680665205 66,407 -7,361 -9.98 1,363 -25.60 0.0113
2016-08-11 2016-06-30 13F OLIN COM PAR $1 680665205 73,768 -7,600 -9.34 1,832 29.65 0.0156
2016-05-13 2016-03-31 13F OLIN COM PAR $1 680665205 81,368 -7,214 -8.14 1,413 -7.59 0.0122
2016-02-16 2015-12-31 13F OLIN COM PAR $1 680665205 88,582 -3,796 -4.11 1,529 -1.55 0.0134
2015-11-13 2015-09-30 13F OLIN COM PAR $1 680665205 92,378 14,621 18.80 1,553 -25.91 0.0144
2015-08-14 2015-06-30 13F OLIN COM PAR $1 680665205 77,757 -6,702 -7.94 2,096 -22.54 0.0183
2015-05-14 2015-03-31 13F OLIN COM PAR $1 680665205 84,459 -141,620 -62.64 2,706 -47.44 0.0234
2015-02-13 2014-12-31 13F OLIN COM PAR $1 680665205 226,079 -6,065 -2.61 5,148 -12.18 0.0440
2014-11-17 2014-09-30 13F OLIN COM PAR $1 680665205 232,144 -5,796 -2.44 5,862 -8.48 0.0534
2014-08-14 2014-06-30 13F OLIN COM PAR $1 680665205 237,940 -9,016 -3.65 6,405 -6.06 0.0580
2014-05-15 2014-03-31 13F OLIN COM PAR $1 680665205 246,956 115,615 88.03 6,818 79.94 0.0641
2014-02-14 2013-12-31 13F OLIN COM PAR $1 680665205 131,341 -5,824 -4.25 3,789 19.75 0.0366
2013-11-14 2013-09-30 13F OLIN COM PAR $1 680665205 137,165 2,540 1.89 3,164 -1.74 0.0326
2013-08-14 2013-06-30 13F OLIN COM PAR $1 680665205 134,625 134,625 3,220 0.0343
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.