Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership232,173 shares
Latest Disclosed Value $ 6,902,503
Bnp Paribas Arbitrage, Sa reports 474.96% increase in ownership of OLN / Olin Corporation

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 232,173 shares of Olin Corporation (US:OLN) valued at $6,902,503 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 40,381 shares of Olin Corporation. This represents a change in shares of 474.96% during the quarter. The current value of the position is $5,788,073 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)
2026-05-12 2026-03-31 13F Olin Equity 680665205 232,173 191,792 474.96 6,903 720.69 0.0003
2026-02-10 2025-12-31 13F Olin Equity 680665205 40,381 -123,013 -75.29 841 -79.40 0.0004
2025-11-13 2025-09-30 13F Olin Equity 680665205 163,394 71,605 78.01 4,083 121.42 0.0022
2025-08-14 2025-06-30 13F Olin Equity 680665205 91,789 77,041 522.38 1,844 416.53 0.0011
2025-05-14 2025-03-31 13F Olin Equity 680665205 14,748 -105,690 -87.75 357 -91.23 0.0002
2025-02-14 2024-12-31 13F Olin Equity 680665205 120,438 -121,032 -50.12 4,071 -64.87 0.0023
2024-11-13 2024-09-30 13F Olin Equity 680665205 241,470 -46,265 -16.08 11,586 -14.60 0.0078
2024-08-13 2024-06-30 13F Olin Equity 680665205 287,735 98,352 51.93 13,567 21.83 0.0111
2024-05-01 2024-03-31 13F Olin Equity 680665205 189,383 410 0.22 11,136 9.22 0.0098
2024-02-14 2023-12-31 13F/A-2 Olin Equity 680665205 188,973 48,625 34.65 10,195 45.35 0.0116
2024-02-07 2023-12-31 13F/A-1 Olin Equity 680665205 188,973 48,625 10,195 0.0014
2024-02-07 2023-12-31 13F Olin Equity 680665205 188,973 10,195
2023-11-14 2023-09-30 13F Olin Equity 680665205 140,348 -671,917 -82.72 7,015 -83.20 0.0090
2023-08-09 2023-06-30 13F Olin Equity 680665205 812,265 109,583 15.59 41,742 7.04 0.0522
2023-05-12 2023-03-31 13F OLIN EQUITY 680665205 702,682 -15,381 -2.14 38,999 2.59 0.0546
2023-02-14 2022-12-31 13F Olin Equity 680665205 718,063 642,244 847.08 38,014 1,069.30 0.0584
2022-11-16 2022-09-30 13F/A-1 Olin Equity 680665205 75,819 -15,171 -16.67 3,251 -22.80 0.0052
2022-11-15 2022-09-30 13F Olin Equity 680665205 75,819 -15,171 3,251 0.0008
2022-08-12 2022-06-30 13F Olin Equity 680665205 90,990 -12,365 -11.96 4,211 -22.06 0.0066
2022-05-18 2022-03-31 13F/A-1 Olin Equity 680665205 103,355 -160,963 -60.90 5,403 -64.46 0.0073
2022-02-09 2021-12-31 13F OLIN EQUITY 680665205 264,318 -90,633 -25.53 15,204 -11.23 0.0216
2021-11-16 2021-09-30 13F/A-1 OLIN EQUITY 680665205 354,951 286,139 415.83 17,126 438.05 0.0243
2021-11-12 2021-09-30 13F OLIN EQUITY 680665205 330,038 261,226 4,086 0.0000
2021-08-10 2021-06-30 13F OLIN EQUITY 680665205 68,812 22,355 48.12 3,183 80.54 0.0042
2021-05-07 2021-03-31 13F OLIN EQUITY 680665205 46,457 -115,598 -71.33 1,764 -55.70 0.0026
2021-02-10 2020-12-31 13F OLIN EQUITY 680665205 162,055 -167,983 -50.90 3,980 -2.57 0.0074
2020-10-30 2020-09-30 13F OLIN EQUITY 680665205 330,038 13,717 4.34 4,086 12.41 0.0058
2020-08-06 2020-06-30 13F OLIN EQUITY 680665205 316,321 277,916 723.65 3,635 711.16 0.0064
2020-05-13 2020-03-31 13F OLIN EQUITY 680665205 38,405 -70,514 -64.74 448 -76.14 0.0009
2020-02-12 2019-12-31 13F OLIN EQUITY 680665205 108,919 46,615 74.82 1,879 61.06 0.0034
2019-11-07 2019-09-30 13F OLIN EQUITY 680665205 62,304 28,317 83.32 1,166 56.72 0.0021
2019-07-30 2019-06-30 13F OLIN EQUITY 680665205 33,987 16,394 93.18 745 82.80 0.0015
2019-04-25 2019-03-31 13F OLIN EQUITY 680665205 17,593 14,700 508.12 407 601.72 0.0009
2019-02-12 2018-12-31 13F OLIN EQUITY 680665205 2,893 -28,144 -90.68 58 -92.72 0.0001
2018-11-07 2018-09-30 13F OLIN EQUITY 680665205 31,037 12,565 68.02 797 50.38 0.0012
2018-07-25 2018-06-30 13F OLIN EQUITY 680665205 18,472 11,383 160.57 531 146.51 0.0009
2018-05-11 2018-03-31 13F OLIN EQUITY 680665205 7,089 -39,522 -84.79 215 -87.03 0.0004
2018-03-05 2017-12-31 13F/A-1 OLIN EQUITY 680665205 46,611 -33,540 -41.85 1,658 -39.60 0.0029
2018-02-01 2017-12-31 13F OLIN EQUITY 680665205 46,611 -33,540 1,658
2017-11-03 2017-09-30 13F OLIN STOCK 680665205 80,151 17,122 27.17 2,745 43.87 0.0067
2017-08-03 2017-06-30 13F OLIN STOCK 680665205 63,029 25,153 66.41 1,909 53.38 0.0058
2017-05-03 2017-03-31 13F OLIN STOCK 680665205 37,876 -65,955 -63.52 1,245 -53.22 0.0033
2017-02-14 2016-12-31 13F OLIN STOCK 680665205 103,831 -24,676 -19.20 2,659 0.87 0.0125
2016-10-05 2016-09-30 13F * OLIN CORP COM PAR $1 STOCK 680665205 128,507 -23,601 -15.52 2,637 -30.23 0.0109
2016-07-06 2016-06-30 13F * OLIN CORP COM PAR $1 STOCK 680665205 152,108 56,128 58.48 3,778 126.63 0.0170
2016-04-22 2016-03-31 13F * OLIN CORP COM PAR $1 STOCK 680665205 95,980 39,607 70.26 1,667 71.50 0.0071
2016-04-19 2015-12-31 13F/A-1 * OLIN CORP COM PAR $1 STOCK 680665205 56,373 42,220 298.31 973 310.13 0.0047
2016-02-10 2015-12-31 13F * OLIN CORP COM PAR $1 STOCK 680665205 56,373 973
2015-11-13 2015-09-30 13F * OLIN CORP COM PAR $1 STOCK 680665205 14,153 8,282 141.07 238 50.00 0.0006
2015-08-14 2015-06-30 13F OLIN CORP COM PAR $1 STOCK 680665205 5,871 4,585 356.53 158 285.37 0.0004
2015-05-15 2015-03-31 13F * OLIN CORP COM PAR $1 STOCK 680665205 1,286 1,286 -78.10 41 -74.05 0.0001
2015-02-11 2014-12-31 13F * OLIN CORP COM PAR $1 STOCK 680665205 0 -15,711 -100.00 0 -100.00
2014-11-12 2014-09-30 13F * OLIN CORP COM PAR $1 STOCK 680665205 15,711 15,538 8,981.50 397 9,800.00 0.0003
2014-08-14 2014-06-30 13F/A-1 * OLIN CORP COM PAR $1 STOCK 680665205 173 -8,033 -97.89 5 -98.26 0.0000
2014-08-14 2014-06-30 13F OLIN CORP COM PAR $1 STOCK 680665205 173 5
2014-05-13 2014-03-31 13F OLIN CORP PAR $1 STOCK 680665205 8,206 5,767 236.45 231 228.57 0.0002
2014-04-02 2013-12-31 13F/A-1 OLIN CORP PAR $1 STOCK 680665205 2,439 -19,119 -88.69 70 -85.92 0.0001
2013-11-13 2013-09-30 13F OLIN CORP PAR $1 STOCK 680665205 21,558 -6,556 -23.32 497 -26.04 0.0004
2013-08-13 2013-06-30 13F OLIN CORP PAR $1 STOCK 680665205 28,114 28,114 672 0.0005
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.