TRS TriMas Corporation

NASDAQ
$38.34

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.

Managers compared
227
filed both this quarter and last
Managers holding
203
+12 on the quarter
Buyers
99
36 opened new
Sellers
98
24 sold out entirely
Buyer share
50.3%
of managers who traded it
Breadth
+0.5
net buyers, as a share of those trading

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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Ownership map

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.

Cut Unchanged Added Color saturates at ±50%.

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.