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TriMas Corporation (TRS) institutional ownership

Latest close $40.76 Jul 7, 2026
Market cap$1.5B 52-week range SectorConsumer Cyclical
Funds holding · Q1 2026
193
reported TRS position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net sold $56M
85 buyers · 108 sellers

TriMas Corporation (TRS) price and institutional activity

Dates

Q1 2026

$157M bought by 85 investors
Morgan Stanley$25MSG Americas Securities, LLC$21M +83 more
$213M sold by 108 investors
Pzena Investment Management LLC-$19MAlberta Investment Management Corp-$17M +106 more
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Bought Sold Totals per quarter; hover a bar for the names.

TriMas Corporation (TRS) institutional activity · 193

Investor Type Est. change Change Δ Own Date
Morgan Stanley · Added +$25M
Change +688K Date Q1 2026
Morgan Stanley Added· Q1 2026 +$25M +688K Q1 2026
SG Americas Securities, LLC · Added +$21M
Change +582K Date Q1 2026
SG Americas Securities, LLC Added· Q1 2026 +$21M +582K Q1 2026
Pzena Investment Management LLC · Reduced −$19M
Change −528K Date Q1 2026
Pzena Investment Management LLC Reduced· Q1 2026 −$19M −528K Q1 2026
Alberta Investment Management Corp · Exited −$17M
Change −468K Δ Own −100.0% Date Q1 2026
Alberta Investment Management Corp Exited· Q1 2026 −$17M −468K −100.0% Q1 2026
Point72 Asset Management, L.P. · Exited −$16M
Change −446K Δ Own −100.0% Date Q1 2026
Point72 Asset Management, L.P. Exited· Q1 2026 −$16M −446K −100.0% Q1 2026
Permian Investment Partners, LP · Added +$14M
Change +379K Date Q1 2026
Permian Investment Partners, LP Added· Q1 2026 +$14M +379K Q1 2026
Citadel Advisors LLC Added· Q1 2026 +$12M +348K +358.7% Q1 2026
Alta Fox Capital Management, LLC · Reduced −$12M
Change −340K Date Q1 2026
Alta Fox Capital Management, LLC Reduced· Q1 2026 −$12M −340K Q1 2026
Ophir Asset Management Pty Ltd · Exited −$12M
Change −324K Δ Own −100.0% Date Q1 2026
Ophir Asset Management Pty Ltd Exited· Q1 2026 −$12M −324K −100.0% Q1 2026
Kennedy Capital Management LLC · Reduced −$11M
Change −302K Date Q1 2026
Kennedy Capital Management LLC Reduced· Q1 2026 −$11M −302K Q1 2026
Algert Global LLC · Exited −$10M
Change −286K Δ Own −100.0% Date Q1 2026
Algert Global LLC Exited· Q1 2026 −$10M −286K −100.0% Q1 2026
Nuveen, LLC · Reduced −$10M
Change −279K Date Q1 2026
Nuveen, LLC Reduced· Q1 2026 −$10M −279K Q1 2026
Simcoe Capital Management, LLC · Exited −$9.6M
Change −269K Δ Own −100.0% Date Q1 2026
Simcoe Capital Management, LLC Exited· Q1 2026 −$9.6M −269K −100.0% Q1 2026
Two Sigma Investments, LP · Added +$9.4M
Change +262K Δ Own +125.2% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +$9.4M +262K +125.2% Q1 2026
Punch & Associates Investment Management, Inc. · New +$8.8M
Change +245K Date Q1 2026
Punch & Associates Investment Management, Inc. New· Q1 2026 +$8.8M +245K Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 193

Famous investor activity in TriMas Corporation (TRS)

TriMas Corporation (TRS) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Sedaghat Shawn · Director Grant (A) $25K
Price $40.64 Qty 615 Owned 4.2M ΔOwn 0.0% Trade date Jul 14, 2026 Filed date Jul 16, 2026
Sedaghat Shawn Director Grant (A) $40.64 615 $25K 4.2M 0.0% Jul 14, 2026 Jul 16, 2026
Parker Herbert K. · Director Sell −$675K
Price $45.03 Qty −15K Owned 58K ΔOwn −20.6% Trade date Jun 30, 2026 Filed date Jul 1, 2026
Parker Herbert K. Director Sell $45.03 −15K −$675K 58K −20.6% Jun 30, 2026 Jul 1, 2026
Snyder Thomas James · Director Tax withholding or exercise payment (F) -$966K
Price $43.60 Qty -22K Owned 130K ΔOwn −14.5% Trade date Jun 24, 2026 Filed date Jun 25, 2026
Snyder Thomas James Director Tax withholding or exercise payment (F) $43.60 -22K -$966K 130K −14.5% Jun 24, 2026 Jun 25, 2026
Tredwell Daniel P. · Director Buy +$3K
Price $40.58 Qty +62 Owned 63K Trade date May 13, 2026 Filed date May 15, 2026
Tredwell Daniel P. Director Buy $40.58 +62 +$3K 63K May 13, 2026 May 15, 2026
Robin Jodi F. · Officer Sell −$83K
Price $41.60 Qty −2K Owned 34K Trade date May 7, 2026 Filed date May 7, 2026
Robin Jodi F. Officer Sell $41.60 −2K −$83K 34K May 7, 2026 May 7, 2026
Robin Jodi F. · Officer Sell −$123K
Price $41.09 Qty −3K Owned 36K Trade date May 5, 2026 Filed date May 7, 2026
Robin Jodi F. Officer Sell $41.09 −3K −$123K 36K May 5, 2026 May 7, 2026
Sedaghat Shawn · Director Grant (A) $25K
Price $39.03 Qty 640 Owned 4.2M Trade date Apr 14, 2026 Filed date Apr 16, 2026
Sedaghat Shawn Director Grant (A) $39.03 640 $25K 4.2M Apr 14, 2026 Apr 16, 2026
Finley Teresa · Director Tax withholding or exercise payment (F) -$211K
Price $34.04 Qty -6K Owned 75K Trade date Mar 20, 2026 Filed date Mar 23, 2026
Finley Teresa Director Tax withholding or exercise payment (F) $34.04 -6K -$211K 75K Mar 20, 2026 Mar 23, 2026
Trend International Holding AG · 10% Owner Grant (A) 3K
Owned 4.2M Trade date Mar 14, 2026 Filed date Mar 16, 2026
Trend International Holding AG 10% Owner Grant (A) 3K 4.2M Mar 14, 2026 Mar 16, 2026
Swart Paul · Officer Grant (A) 7K
Owned 15K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Swart Paul Officer Grant (A) 7K 15K Mar 14, 2026 Mar 16, 2026
Robin Jodi F. · Officer Tax withholding or exercise payment (F) -$84K
Price $35.04 Qty -2K Owned 39K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Robin Jodi F. Officer Tax withholding or exercise payment (F) $35.04 -2K -$84K 39K Mar 14, 2026 Mar 16, 2026
Robin Jodi F. · Officer Grant (A) 5K
Owned 42K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Robin Jodi F. Officer Grant (A) 5K 42K Mar 14, 2026 Mar 16, 2026
Stress Jill S. · Officer Tax withholding or exercise payment (F) -$70K
Price $35.04 Qty -2K Owned 24K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Stress Jill S. Officer Tax withholding or exercise payment (F) $35.04 -2K -$70K 24K Mar 14, 2026 Mar 16, 2026
Fielkow Jeffrey A. · Director Grant (A) 3K
Owned 21K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Fielkow Jeffrey A. Director Grant (A) 3K 21K Mar 14, 2026 Mar 16, 2026
Shapira Adrianne · Director Grant (A) 3K
Owned 11K Trade date Mar 14, 2026 Filed date Mar 16, 2026
Shapira Adrianne Director Grant (A) 3K 11K Mar 14, 2026 Mar 16, 2026
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15 of 29 Sign in to continue to older insider transactions.

TriMas Corporation (TRS) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Trend International Holding AG 4.2M
% of shares outstanding 10.3% Filing date Oct 15, 2024
Trend International Holding AG 4.2M 10.3% Oct 15, 2024
Vanguard Group Inc 4.3M
% of shares outstanding 10.3% Filing date Feb 13, 2024
Vanguard Group Inc 4.3M 10.3% Feb 13, 2024
BlackRock Inc. 3.1M
% of shares outstanding 7.6% Filing date Jan 26, 2024
BlackRock Inc. 3.1M 7.6% Jan 26, 2024
Victory Capital Management Inc 3.2M
% of shares outstanding 7.6% Filing date Jan 31, 2023
Victory Capital Management Inc 3.2M 7.6% Jan 31, 2023
Fiduciary Management Inc 3.1M
% of shares outstanding 7.5% Filing date Feb 14, 2024
Fiduciary Management Inc 3.1M 7.5% Feb 14, 2024
Allspring Global Investments Holdings, LLC 3.1M
% of shares outstanding 7.4% Filing date Jan 12, 2024
Allspring Global Investments Holdings, LLC 3.1M 7.4% Jan 12, 2024
Pzena Investment Management LLC 2.6M
% of shares outstanding 6.2% Filing date Feb 9, 2024
Pzena Investment Management LLC 2.6M 6.2% Feb 9, 2024
Dimensional Fund Advisors LP 2.5M
% of shares outstanding 6.1% Filing date Feb 9, 2024
Dimensional Fund Advisors LP 2.5M 6.1% Feb 9, 2024
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TriMas Corporation (TRS) ownership FAQ

Who owns TRS?

193 reporting institutions disclosed TRS position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.