OLIN Corp
OLN- Exchange
- NYSE
- Industry
- Chemicals & Allied Products
- SEC CIK
- 0000074303
No open-market purchases or sales by OLIN Corp insiders were filed in the last 90 days; 415 institutions reported holding it in 13F filings for Q2 2026, worth $2.26B in total; Semper Augustus is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in OLIN Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 422
- +51 vs. Q4 2025
- Shares held
- 112.6M
- +18.0M (+19.0%) vs. Q4 2025
- Total value
- $3.35B
- +$1.38B (+69.8%) vs. Q4 2025
- New holders
- 110
- 150 more added
- Sold out
- 59
- 85 more reduced
8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 415 | $2.26B |
| Q1 2026 | 422 | $3.35B |
| Q4 2025 | 379 | $2.21B |
| Q3 2025 | 370 | $2.58B |
| Q2 2025 | 352 | $2.09B |
| Q1 2025 | 354 | $2.45B |
| Q4 2024 | 384 | $3.51B |
| Q3 2024 | 396 | $4.92B |
| Q2 2024 | 445 | $4.93B |
| Q1 2024 | 433 | $6.15B |
| Q4 2023 | 426 | $5.72B |
| Q3 2023 | 428 | $5.33B |
| Q2 2023 | 463 | $5.62B |
| Q1 2023 | 481 | $6.18B |
| Q4 2022 | 472 | $6.12B |
| Q3 2022 | 455 | $5.23B |
| Q2 2022 | 483 | $5.94B |
| Q1 2022 | 476 | $6.70B |
| Q4 2021 | 462 | $7.68B |
| Q3 2021 | 388 | $6.58B |
| Q2 2021 | 360 | $6.36B |
| Q1 2021 | 318 | $5.16B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding OLIN Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Northern Trust Corp | 989,256 | $29.4M | 0.00% | +26,753+2.8% | Added |
| Millennium Management LLC | 1,065,487 | $31.7M | 0.02% | +1,030,357+2,933.0% | Added |
| UBS Group AG | 1,122,054 | $33.4M | 0.01% | +23,742+2.2% | Added |
| AQR Capital Management LLC | 1,166,226 | $34.7M | 0.02% | +549,862+89.2% | Added |
| Two Sigma Investments, LP | 1,195,624 | $35.5M | 0.03% | +1,195,624 | New |
| Bank of New York Mellon Corp | 1,232,912 | $36.7M | 0.01% | +12,290+1.0% | Added |
| Charles Schwab Investment Management Inc | 1,557,182 | $46.3M | 0.01% | +67,676+4.5% | Added |
| Citadel Advisors LLC | 1,640,514 | $48.8M | 0.03% | +813,112+98.3% | Added |
| Morgan Stanley | 1,651,667 | $49.1M | 0.00% | −169,187−9.3% | Reduced |
| Bank of America Corp | 1,774,009 | $52.7M | 0.00% | −19,237−1.1% | Reduced |
| Semper Augustus Investments Group LLCSuperinvestorSemper Augustus | 2,029,319 | $60.3M | 7.21% | +85,879+4.4% | Added |
| Geode Capital Management, LLC | 2,111,576 | $62.8M | 0.00% | +80,940+4.0% | Added |
| Goldman Sachs Group Inc | 2,836,183 | $84.3M | 0.01% | +2,389,032+534.3% | Added |
| Yacktman Asset Management LP | 4,092,211 | $121.7M | 1.62% | +169,893+4.3% | Added |
| Pzena Investment Management LLC | 4,431,613 | $131.8M | 0.43% | −76,300−1.7% | Reduced |
| State Street Corp | 4,800,018 | $142.7M | 0.00% | +62,520+1.3% | Added |
| Fuller & Thaler Asset Management, Inc. | 5,015,877 | $149.1M | 0.50% | −866,867−14.7% | Reduced |
| Vanguard Capital Management LLC | 5,038,968 | $149.8M | 0.00% | +5,038,968 | New |
| Vanguard Portfolio Management LLC | 5,439,407 | $161.7M | 0.01% | +5,439,407 | New |
| Dimensional Fund Advisors LP | 5,627,997 | $167.3M | 0.03% | +1,031,498+22.4% | Added |
| BlackRock, Inc. | 11,486,856 | $341.5M | 0.01% | −464,857−3.9% | Reduced |
| Hotchkis & Wiley Capital Management LLC | 15,084,224 | $448.5M | 1.39% | −194,021−1.3% | Reduced |
| Orbis Allan Gray Ltd | 0 | $0 | 0.00% | −3,804,561−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −794,711−100.0% | Sold out |
| Masters Capital Management LLC | 0 | $0 | 0.00% | −700,000−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −667,101−100.0% | Sold out |
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −387,259−100.0% | Sold out |
| Cambria Investment Management, L.P. | 0 | $0 | 0.00% | −384,346−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −238,404−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −211,749−100.0% | Sold out |
| Impala Asset Management LLC | 0 | $0 | 0.00% | −167,000−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −164,152−100.0% | Sold out |
| Soapstone Management L.P. | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| HITE Hedge Asset Management LLC | 0 | $0 | 0.00% | −146,381−100.0% | Sold out |
| Huber Capital Management LLC | 0 | $0 | 0.00% | −114,700−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −91,424−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −80,166−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −79,258−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −75,359−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −60,906−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −50,359−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −38,148−100.0% | Sold out |
| CAPROCK Group, Inc. | 0 | $0 | 0.00% | −37,533−100.0% | Sold out |
| Robotti Robert | 0 | $0 | 0.00% | −37,408−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −36,792−100.0% | Sold out |
| Absolute Gestao de Investimentos Ltda. | 0 | $0 | 0.00% | −33,200−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −27,840−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −27,132−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −21,300−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −18,157−100.0% | Sold out |
| Titleist Asset Management, LLC | 0 | $0 | 0.00% | −18,129−100.0% | Sold out |
| Colony Group, LLC | 0 | $0 | 0.00% | −17,535−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −16,000−100.0% | Sold out |
| Unifi Asset Management LP | 0 | $0 | 0.00% | −13,606−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −12,769−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −12,315−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,019−100.0% | Sold out |
| Gateway Investment Advisers LLC | 0 | $0 | 0.00% | −11,457−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −11,233−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −10,896−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −9,888−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −9,761−100.0% | Sold out |
| ARS Investment Partners, LLC | 0 | $0 | 0.00% | −9,641−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −6,541−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −4,509−100.0% | Sold out |
| DV Trading LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| CGC Financial Services, LLC | 0 | $0 | 0.00% | −354−100.0% | Sold out |
| Performa Ltd (US), LLC | 0 | $0 | 0.00% | −329−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −289−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −269−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −130−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −93−100.0% | Sold out |
| Armstrong Advisory Group, Inc | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| IFC & Insurance Marketing, Inc. | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Turning Point Benefit Group, Inc. | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Bayban | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Center for Financial Planning, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Private Wealth Asset Management, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| V. M. Manning & Co., Inc. | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| ORG Partners LLC | – | – | – | – | Not filed |
| Ransom Advisory, Ltd | – | – | – | – | Not filed |