TRS TriMas Corporation
TriMas Corporation (TRS) Institutional Ownership
What the institutions did with TRS 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 |
|---|---|---|
| BlackRock, Inc. | 2.5M | 8.4% |
| DIMENSIONAL FUND ADVISORS LP | 2.3M | 7.5% |
| Allspring Global Investments Holdings, LLC | 1.9M | 6.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.7M | 5.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | 4.7% |
| ADVISORY RESEARCH INC | 1.2M | 4.0% |
| Permian Investment Partners, LP | 1.2M | 3.9% |
| AMERICAN CENTURY COMPANIES INC | 1.2M | 3.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.0M | 3.4% |
| Jefferies Financial Group Inc. | 981.9K | 3.3% |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 807.3K | 2.7% |
| STATE STREET CORP | 784.1K | 2.6% |
| First Eagle Investment Management, LLC | 663.1K | 2.2% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 579.3K | 1.9% |
| Nuveen, LLC | 566.5K | 1.9% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 543.7K | 1.8% |
| TWO SIGMA INVESTMENTS, LP | 453.4K | 1.5% |
| CITADEL ADVISORS LLC | 432.4K | 1.4% |
| LOOMIS SAYLES & CO L P | 430.5K | 1.4% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 424.9K | 1.4% |
| MORGAN STANLEY | 395.4K | 1.3% |
| Bank of New York Mellon Corp | 365.9K | 1.2% |
| OBERWEIS ASSET MANAGEMENT INC/ | 362.0K | 1.2% |
| FIRST MANHATTAN CO. LLC. | 329.7K | 1.1% |
| JANE STREET GROUP, LLC | 319.5K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BANK OF AMERICA CORP /DE/ | Reduced | 3.8M | 309.6K | -3.5M |
| MORGAN STANLEY | Reduced | 1.5M | 395.4K | -1.1M |
| AMERICAN CENTURY COMPANIES INC | Increased | 230.4K | 1.2M | +919.9K |
| Allspring Global Investments Holdings, LLC | Reduced | 2.5M | 1.9M | -605.5K |
| Jefferies Financial Group Inc. | Reduced | 1.5M | 981.9K | -567.7K |
| SG Americas Securities, LLC | Reduced | 667.1K | 102.2K | -564.9K |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Increased | 244.7K | 807.3K | +562.6K |
| FRANKLIN RESOURCES INC | Sold Out | 438.9K | 0 | -438.9K |
| WELLINGTON MANAGEMENT GROUP LLP | Sold Out | 403.9K | 0 | -403.9K |
| OBERWEIS ASSET MANAGEMENT INC/ | New | 0 | 362.0K | +362.0K |
| First Eagle Investment Management, LLC | Increased | 318.0K | 663.1K | +345.1K |
| ACADIAN ASSET MANAGEMENT LLC | New | 0 | 281.5K | +281.5K |
| ALTA FOX CAPITAL MANAGEMENT, LLC | Sold Out | 223.4K | 0 | -223.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 357.4K | 579.3K | +221.9K |
| Bank of New York Mellon Corp | Increased | 181.1K | 365.9K | +184.8K |
| FIRST TRUST ADVISORS LP | Increased | 41.5K | 217.0K | +175.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1.6M | 1.4M | -172.4K |
| VICTORY CAPITAL MANAGEMENT INC | New | 0 | 168.0K | +168.0K |
| FMR LLC | Increased | 5.6K | 167.0K | +161.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 872.5K | 1.0M | +146.7K |
| Squarepoint Ops LLC | Sold Out | 136.9K | 0 | -136.9K |
| HRT FINANCIAL LP | Sold Out | 123.2K | 0 | -123.2K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 110.7K | 0 | -110.7K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 1.8M | 1.7M | -93.6K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 160.5K | 68.3K | -92.2K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Reduced | 195.2K | 103.2K | -92.0K |
| ADVISORY RESEARCH INC | Increased | 1.1M | 1.2M | +91.9K |
| GOLDMAN SACHS GROUP INC | Reduced | 292.9K | 204.5K | -88.4K |
| Trexquant Investment LP | New | 0 | 81.3K | +81.3K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 622.1K | 543.7K | -78.4K |
| KENNEDY CAPITAL MANAGEMENT LLC | Reduced | 376.8K | 302.3K | -74.5K |
| JANE STREET GROUP, LLC | Reduced | 390.3K | 319.5K | -70.8K |
| Man Group plc | New | 0 | 65.1K | +65.1K |
| HARBOR CAPITAL ADVISORS, INC. | Increased | 32.2K | 97.0K | +64.8K |
| Lighthouse Investment Partners, LLC | New | 0 | 63.6K | +63.6K |
| Gotham Asset Management, LLC | Increased | 35.9K | 94.9K | +59.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 483.8K | 424.9K | -59.0K |
| STEEL PARTNERS HOLDINGS L.P. | Sold Out | 54.1K | 0 | -54.1K |
| EVR Research LP | New | 0 | 50.0K | +50.0K |
| CastleKnight Management LP | New | 0 | 45.7K | +45.7K |
| Jump Financial, LLC | New | 0 | 42.2K | +42.2K |
| Creative Planning | Increased | 54.2K | 95.8K | +41.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 75.1K | 34.6K | -40.4K |
| SEI INVESTMENTS CO | Reduced | 215.5K | 175.3K | -40.2K |
| NewGen Asset Management Ltd | Sold Out | 40.0K | 0 | -40.0K |
| Balyasny Asset Management L.P. | Reduced | 69.0K | 29.2K | -39.8K |
| Permian Investment Partners, LP | Reduced | 1.2M | 1.2M | -37.1K |
| Campbell & CO Investment Adviser LLC | Increased | 54.7K | 90.2K | +35.5K |
| Russell Investments Group, Ltd. | Increased | 63.9K | 99.2K | +35.2K |
| CAPITAL FUND MANAGEMENT S.A. | Increased | 26.2K | 61.2K | +35.0K |
| UBS Group AG | Increased | 32.7K | 67.0K | +34.3K |
| VARCOV Co. | Sold Out | 34.3K | 0 | -34.3K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 33.6K | 0 | -33.6K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 77.9K | 44.4K | -33.5K |
| BlackRock, Inc. | Increased | 2.5M | 2.5M | +33.3K |
| Cerity Partners LLC | New | 0 | 33.3K | +33.3K |
| DARK FOREST CAPITAL MANAGEMENT LP | Sold Out | 33.0K | 0 | -33.0K |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | New | 0 | 32.9K | +32.9K |
| STATE STREET CORP | Reduced | 816.6K | 784.1K | -32.5K |
| Quantinno Capital Management LP | Increased | 14.3K | 45.2K | +30.9K |
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.