OLN Olin Corporation
Olin Corporation (OLN) Institutional Ownership
What the institutions did with OLN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 16.0M | 14.1% |
| BlackRock, Inc. | 12.0M | 10.5% |
| DIMENSIONAL FUND ADVISORS LP | 6.2M | 5.4% |
| AQR CAPITAL MANAGEMENT LLC | 5.5M | 4.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | 4.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1M | 4.5% |
| STATE STREET CORP | 4.8M | 4.2% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 4.3M | 3.8% |
| YACKTMAN ASSET MANAGEMENT LP | 4.2M | 3.7% |
| PZENA INVESTMENT MANAGEMENT LLC | 3.9M | 3.4% |
| GOLDMAN SACHS GROUP INC | 2.6M | 2.2% |
| CITADEL ADVISORS LLC | 2.2M | 2.0% |
| SEMPER AUGUSTUS INVESTMENTS GROUP LLC | 2.2M | 1.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1M | 1.9% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5M | 1.4% |
| MORGAN STANLEY | 1.4M | 1.2% |
| CAPTRUST FINANCIAL ADVISORS | 1.3M | 1.2% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 1.1% |
| Bank of New York Mellon Corp | 1.2M | 1.1% |
| NORTHERN TRUST CORP | 1.0M | 0.9% |
| JPMORGAN CHASE & CO | 976.7K | 0.9% |
| Allianz Asset Management GmbH | 972.7K | 0.9% |
| Invesco Ltd. | 779.3K | 0.7% |
| VICTORY CAPITAL MANAGEMENT INC | 773.4K | 0.7% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 744.6K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.2M | 5.5M | +4.3M |
| CAPTRUST FINANCIAL ADVISORS | Increased | 20.6K | 1.3M | +1.3M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.1M | 81.1K | -984.4K |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Increased | 15.1M | 16.0M | +937.0K |
| JPMORGAN CHASE & CO | Increased | 250.2K | 976.7K | +726.4K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 5.0M | 4.3M | -714.3K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 1.2M | 491.2K | -704.4K |
| Amundi | Sold Out | 684.0K | 0 | -684.0K |
| Wolf Hill Capital Management, LP | Sold Out | 633.5K | 0 | -633.5K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 660.5K | 28.8K | -631.7K |
| Merewether Investment Management, LP | Sold Out | 623.4K | 0 | -623.4K |
| CITADEL ADVISORS LLC | Increased | 1.6M | 2.2M | +593.3K |
| D. E. Shaw & Co., Inc. | Reduced | 574.0K | 11.8K | -562.2K |
| PZENA INVESTMENT MANAGEMENT LLC | Reduced | 4.4M | 3.9M | -541.4K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 5.6M | 6.2M | +538.5K |
| Allianz Asset Management GmbH | Increased | 470.9K | 972.7K | +501.8K |
| BlackRock, Inc. | Increased | 11.5M | 12.0M | +497.4K |
| BANK OF AMERICA CORP /DE/ | Reduced | 1.8M | 1.3M | -490.0K |
| UBS Group AG | Reduced | 1.1M | 720.0K | -402.0K |
| MACKENZIE FINANCIAL CORP | Reduced | 396.2K | 25.0K | -371.2K |
| SG Americas Securities, LLC | Reduced | 353.9K | 42.6K | -311.3K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 601 | 289.3K | +288.7K |
| GOLDMAN SACHS GROUP INC | Reduced | 2.8M | 2.6M | -286.1K |
| RENAISSANCE TECHNOLOGIES LLC | New | 0 | 283.5K | +283.5K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | 0 | 277.9K | +277.9K |
| JANE STREET GROUP, LLC | Reduced | 313.9K | 37.7K | -276.2K |
| READYSTATE ASSET MANAGEMENT LP | Reduced | 350.8K | 75.9K | -274.9K |
| MORGAN STANLEY | Reduced | 1.7M | 1.4M | -267.1K |
| CITIGROUP INC | Reduced | 407.2K | 143.3K | -263.9K |
| CenterBook Partners LP | Increased | 188.1K | 441.6K | +253.5K |
| Man Group plc | New | 0 | 251.9K | +251.9K |
| ExodusPoint Capital Management, LP | Sold Out | 247.5K | 0 | -247.5K |
| Gotham Asset Management, LLC | Reduced | 791.1K | 552.8K | -238.3K |
| Edgestream Partners, L.P. | Sold Out | 231.9K | 0 | -231.9K |
| FIRST TRUST ADVISORS LP | Reduced | 713.0K | 483.2K | -229.9K |
| Rokos Capital Management LLP | Sold Out | 229.8K | 0 | -229.8K |
| AQR Arbitrage LLC | New | 0 | 228.7K | +228.7K |
| Lloyd Harbor Capital Management, LLC | Sold Out | 220.0K | 0 | -220.0K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 232.2K | 21.7K | -210.4K |
| Walleye Capital LLC | Sold Out | 201.6K | 0 | -201.6K |
| Engineers Gate Manager LP | Increased | 12.4K | 210.5K | +198.1K |
| SummitTX Capital, L.P. | Sold Out | 197.0K | 0 | -197.0K |
| Point72 Asset Management, L.P. | Increased | 151.1K | 345.0K | +193.9K |
| HSBC HOLDINGS PLC | New | 0 | 187.8K | +187.8K |
| Balyasny Asset Management L.P. | Increased | 272.0K | 452.9K | +180.8K |
| MetLife Investment Management, LLC | Reduced | 627.6K | 457.4K | -170.1K |
| Qsemble Capital Management, LP | Sold Out | 156.8K | 0 | -156.8K |
| Royal Palms Capital LLC | New | 0 | 156.8K | +156.8K |
| Holocene Advisors, LP | Sold Out | 156.7K | 0 | -156.7K |
| XTX Topco Ltd | Increased | 56.3K | 207.7K | +151.4K |
| BARCLAYS PLC | Reduced | 185.0K | 36.9K | -148.1K |
| Quantbot Technologies LP | Sold Out | 136.6K | 0 | -136.6K |
| HATCH COVE CAPITAL, LLC | New | 0 | 135.6K | +135.6K |
| Thomist Capital Management, LP | Sold Out | 134.0K | 0 | -134.0K |
| First Eagle Investment Management, LLC | Reduced | 213.8K | 80.4K | -133.4K |
| Old West Investment Management, LLC | Increased | 192.4K | 323.9K | +131.5K |
| Mariner, LLC | New | 0 | 125.3K | +125.3K |
| SEMPER AUGUSTUS INVESTMENTS GROUP LLC | Increased | 2.0M | 2.2M | +124.5K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 3.4K | 122.0K | +118.5K |
| Qube Research & Technologies Ltd | New | 0 | 118.4K | +118.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.