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TRS Insider Trading

Insider Ownership Percentage: 17.50%
Insider Buying (Last 12 Months): $15,240,934.88
Insider Selling (Last 12 Months): $0.00

TriMas Insider Trading History Chart

This chart shows the insider buying and selling history at TriMas by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

TriMas Share Price & Price History

Current Price: $39.21
Price Change: ▲ Price Increase of +1.71 (4.56%)
As of 05/20/2026 04:00 PM ET

This chart shows the closing price history over time for TRS up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

TriMas Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/5/2026Daniel P TredwellDirectorBuy60$39.38$2,362.8060,543View SEC Filing Icon  
11/12/2025Daniel P TredwellDirectorBuy74$31.94$2,363.5660,483View SEC Filing Icon  
11/11/2025Jeffrey A FielkowDirectorBuy2,000$31.46$62,920.0017,653View SEC Filing Icon  
8/11/2025Daniel P TredwellDirectorBuy66$35.39$2,335.7460,409View SEC Filing Icon  
6/5/2025Adrianne ShapiraDirectorBuy4,000$25.82$103,280.008,476View SEC Filing Icon  
6/4/2025Adrianne ShapiraDirectorBuy1,200$26.31$31,572.004,476View SEC Filing Icon  
5/22/2025Shawn SedaghatDirectorBuy72,937$26.16$1,908,031.921,883,758View SEC Filing Icon  
5/21/2025Shawn SedaghatDirectorBuy410,172$25.43$10,430,673.961,810,821View SEC Filing Icon  
5/20/2025Shawn SedaghatDirectorBuy104,957$25.70$2,697,394.901,400,649View SEC Filing Icon  
5/19/2025Jeffrey A FielkowDirectorBuy500$24.98$12,490.0015,653View SEC Filing Icon  
5/19/2025Shawn SedaghatDirectorBuy254,400$25.39$6,459,216.001,295,692View SEC Filing Icon  
5/12/2025Daniel P TredwellDirectorBuy95$24.72$2,348.4060,343View SEC Filing Icon  
4/30/2025Shawn SedaghatDirectorBuy123,388$23.83$2,940,336.041,024,362View SEC Filing Icon  
3/10/2025Shawn SedaghatDirectorBuy554,149$24.07$13,338,366.43900,974View SEC Filing Icon  
3/7/2025Shawn SedaghatDirectorBuy249,597$23.83$5,947,896.51346,825View SEC Filing Icon  
3/6/2025Scott A MellCFOSell2,218$22.54$49,993.7226,288View SEC Filing Icon  
2/28/2025Jeffrey A FielkowDirectorBuy2,500$20.78$51,950.0011,013View SEC Filing Icon  
11/11/2024Daniel P TredwellDirectorBuy79$27.51$2,173.2951,013View SEC Filing Icon  
8/12/2024Daniel P TredwellDirectorBuy92$23.71$2,181.3250,934View SEC Filing Icon  
5/21/2024Scott A MellCFOSell1,500$27.30$40,950.0031,923View SEC Filing Icon  
5/10/2024Daniel P TredwellDirectorBuy81$26.80$2,170.8050,842View SEC Filing Icon  
5/8/2024Herbert K ParkerDirectorBuy6,000$26.27$157,620.0051,157View SEC Filing Icon  
5/6/2024Herbert K ParkerDirectorBuy6,100$26.52$161,772.0039,157View SEC Filing Icon  
5/3/2024Herbert K ParkerDirectorBuy1,500$26.34$39,510.0033,057View SEC Filing Icon  
5/1/2024Herbert K ParkerDirectorBuy1,000$25.98$25,980.0030,057View SEC Filing Icon  
3/4/2024Jeffrey A FielkowDirectorBuy1,000$23.86$23,860.004,445View SEC Filing Icon  
3/1/2024Thomas A. AmatoCEOBuy10,000$23.62$236,200.00286,168View SEC Filing Icon  
11/7/2023Daniel P TredwellDirectorBuy10$24.22$242.2046,683View SEC Filing Icon  
10/31/2023Scott A MellCFOSell1,036$24.16$25,029.7624,628View SEC Filing Icon  
8/11/2023Teresa FinleyDirectorBuy19$26.05$494.9528,863View SEC Filing Icon  
8/8/2023Daniel P TredwellDirectorBuy10$25.16$251.6046,672View SEC Filing Icon  
8/3/2023Scott A MellCFOSell1,200$25.80$30,960.0025,664View SEC Filing Icon  
7/28/2023Paul SwartCAOSell5,500$27.41$150,755.0026,749View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for TriMas (NASDAQ:TRS)

99.42% of TriMas stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at TRS by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

TriMas Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/19/2026Bank of America Corp DE3,845,726$138.22M0.0%+1.7%10.733%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP14,303$0.51M0.0%+10.4%0.040%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC157,984$5.68M0.0%+43.5%0.441%Search for SEC Filing on Google Icon
5/15/2026Rice Hall James & Associates LLC36,136$1.30M0.1%-64.2%0.101%Search for SEC Filing on Google Icon
5/15/2026Punch & Associates Investment Management Inc.244,719$8.80M0.5%N/A0.683%Search for SEC Filing on Google Icon
5/14/2026Healthcare of Ontario Pension Plan Trust Fund195,200$7.02M0.0%N/A0.545%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC110,700$3.98M0.0%-52.3%0.309%Search for SEC Filing on Google Icon
5/14/2026Arrowstreet Capital Limited Partnership357,387$12.84M0.0%+56.4%0.998%Search for SEC Filing on Google Icon
5/14/2026Inceptionr LLC7,547$0.27M0.1%-60.3%0.021%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.215,508$7.75M0.0%+26.7%0.601%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming10,525$0.38M0.0%+49.4%0.029%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP41,478$1.49M0.0%+4.3%0.116%Search for SEC Filing on Google Icon
5/8/2026NewGen Asset Management Ltd40,000$1.44M0.6%-59.8%0.112%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP2,259,891$81.22M0.0%+4.2%6.307%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC2,509,919$91.24M0.2%-2.0%7.005%Search for SEC Filing on Google Icon
5/5/2026Kestrel Investment Management Corp149,550$5.38M3.2%N/A0.417%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp181,148$6.51M0.0%-1.7%0.494%Search for SEC Filing on Google Icon
5/5/2026Hillsdale Investment Management Inc.91,600$3.29M0.1%-13.5%0.250%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.73,249$2.63M0.0%+65.3%0.200%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC19,251$0.69M0.0%N/A0.052%Search for SEC Filing on Google Icon
4/25/2026Pzena Investment Management LLC9,923$0.36M0.0%-98.2%0.027%Search for SEC Filing on Google Icon
4/23/2026Inspire Investing LLC14,189$0.51M0.0%+7.3%0.039%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC1,058$38K0.0%-42.5%0.003%Search for SEC Filing on Google Icon
4/17/2026AdvisorNet Financial Inc785$28K0.0%N/A0.002%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC667,091$23.98M0.0%+688.2%1.818%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.1,029$36K0.0%+1,958.0%0.003%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.76,578$2.72M0.0%+2.5%0.188%Search for SEC Filing on Google Icon
2/19/2026Alberta Investment Management Corp468,400$16.61M0.1%N/A1.152%Search for SEC Filing on Google Icon
2/18/2026Beartown Capital Management LLC10,000$0.35M0.3%N/A0.025%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd82,214$2.91M0.1%+308.7%0.202%Search for SEC Filing on Google Icon
2/18/2026Voloridge Investment Management LLC74,590$2.64M0.0%+11.3%0.184%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP428,720$15.20M0.0%-20.7%1.055%Search for SEC Filing on Google Icon
2/18/2026Susquehanna Portfolio Strategies LLC13,214$0.47M0.0%-52.6%0.033%Search for SEC Filing on Google Icon
2/18/2026Twinbeech Capital LP35,739$1.27M0.1%N/A0.088%Search for SEC Filing on Google Icon
2/18/2026Ophir Asset Management Pty Ltd323,742$11.48M1.3%+45.9%0.796%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC171,719$6.09M0.0%+52.8%0.422%Search for SEC Filing on Google Icon
2/18/2026Man Group plc5,797$0.21M0.0%N/A0.014%Search for SEC Filing on Google Icon
2/18/2026Inspire Investing LLC13,228$0.47M0.0%-65.4%0.033%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP15,924$0.57M0.0%-39.8%0.039%Search for SEC Filing on Google Icon
2/18/2026First Manhattan CO. LLC.342,070$12.13M0.0%-3.8%0.842%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.68,059$2.41M0.0%-37.7%0.167%Search for SEC Filing on Google Icon
2/18/2026Aristeia Capital L.L.C.16,012$0.57M0.0%+129.1%0.039%Search for SEC Filing on Google Icon
2/17/2026Freestone Grove Partners LP14,958$0.53M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC18,162$0.64M0.0%-54.1%0.045%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC33,719$1.20M0.0%+207.1%0.083%Search for SEC Filing on Google Icon
2/17/2026Lazard Asset Management LLC110,099$3.90M0.0%+11.7%0.271%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC14,683$0.52M0.0%N/A0.036%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD31,021$1.10M0.0%+3.1%0.076%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System30,014$1.06M0.0%-5.7%0.074%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.65,817$2.33M0.0%+27.1%0.162%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board15,727$0.56M0.0%-70.6%0.039%Search for SEC Filing on Google Icon
2/17/2026Kemnay Advisory Services Inc.1,425$51K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP36,044$1.28M0.0%N/A0.089%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada1,225$44K0.0%-97.9%0.003%Search for SEC Filing on Google Icon
2/17/2026NewGen Asset Management Ltd99,500$3.53M2.2%N/A0.245%Search for SEC Filing on Google Icon
2/17/2026Rice Hall James & Associates LLC100,892$3.58M0.2%+10.5%0.248%Search for SEC Filing on Google Icon
2/17/2026Alberta Investment Management Corp468,400$16.61M0.1%N/A1.152%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC233,117$8.26M0.0%-1.5%0.573%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC8,525$0.30M0.0%-85.2%0.021%Search for SEC Filing on Google Icon
2/16/2026Panagora Asset Management Inc.28,273$1M0.0%+102.9%0.070%Search for SEC Filing on Google Icon
2/16/2026PEAK6 LLC55,562$1.97M0.0%N/A0.148%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC18,360$0.65M0.0%-6.0%0.045%Search for SEC Filing on Google Icon
2/16/2026Kennedy Capital Management LLC678,672$24.06M0.5%-12.9%1.670%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC49,815$1.77M0.0%-7.4%0.123%Search for SEC Filing on Google Icon
2/16/2026Alta Fox Capital Management LLC563,375$19.97M4.3%+67.6%1.386%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP64,679$2.29M0.0%-59.5%0.159%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 13,781$0.49M0.0%-12.4%0.034%Search for SEC Filing on Google Icon
2/13/2026Quinn Opportunity Partners LLC87,183$3.09M0.1%+13.0%0.214%Search for SEC Filing on Google Icon
2/13/2026Steel Partners Holdings L.P.54,064$1.92M1.5%N/A0.133%Search for SEC Filing on Google Icon
2/13/2026Advisory Research Inc.1,096,013$38.85M4.9%+46.0%2.696%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp19,226$0.68M0.0%-79.7%0.047%Search for SEC Filing on Google Icon
2/13/2026Permian Investment Partners LP823,481$29.19M3.3%N/A2.026%Search for SEC Filing on Google Icon
2/13/2026Hudson Bay Capital Management LP206,708$7.33M0.0%+173.9%0.509%Search for SEC Filing on Google Icon
2/13/2026First Trust Advisors LP39,753$1.41M0.0%N/A0.098%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.497,826$17.65M0.0%-4.3%1.225%Search for SEC Filing on Google Icon
2/13/2026State Street Corp846,830$30.02M0.0%-5.3%2.083%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC94,275$3.34M0.0%+3.4%0.232%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN51,346$1.82M0.0%+32.6%0.126%Search for SEC Filing on Google Icon
2/13/2026Lord Abbett & CO. LLC290,812$10.31M0.0%+192.3%0.715%Search for SEC Filing on Google Icon
2/13/2026Barington Companies Management LLC131,100$4.65M3.0%-52.3%0.323%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC233,690$8.28M0.0%+20.5%0.575%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC18,440$0.65M0.0%-96.0%0.045%Search for SEC Filing on Google Icon
2/12/2026State Board of Administration of Florida Retirement System52,600$1.87M0.0%+6.9%0.129%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC231,900$8.22M0.0%-12.8%0.570%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP2,168,888$76.89M0.0%-2.3%5.336%Search for SEC Filing on Google Icon
2/12/2026Campbell & CO Investment Adviser LLC37,024$1.31M0.1%-22.6%0.091%Search for SEC Filing on Google Icon
2/12/2026Loomis Sayles & Co. L P452,362$16.04M0.0%+12.6%1.113%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank64,200$2.28M0.0%+1.7%0.158%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC844,050$29.92M0.0%+4.3%2.076%Search for SEC Filing on Google Icon
2/12/2026Group One Trading LLC1,354$48K0.0%-68.5%0.003%Search for SEC Filing on Google Icon
2/11/2026Inceptionr LLC19,013$0.67M0.2%N/A0.047%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG24,282$0.86M0.0%-20.7%0.060%Search for SEC Filing on Google Icon
2/11/2026Simplex Trading LLC9,846$0.35M0.0%+264.7%0.024%Search for SEC Filing on Google Icon
2/11/2026Fox Run Management L.L.C.20,039$0.71M0.1%-8.1%0.049%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.438,902$15.56M0.0%-5.1%1.080%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC803$29K0.0%N/A0.002%Search for SEC Filing on Google Icon
2/11/2026State of Wyoming7,044$0.25M0.0%+324.3%0.017%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.474,571$16.82M0.0%+139.4%1.167%Search for SEC Filing on Google Icon
2/10/2026Ellevest Inc.6,418$0.23M0.0%+11.6%0.016%Search for SEC Filing on Google Icon
2/10/2026Hillsdale Investment Management Inc.105,900$3.75M0.1%-1.6%0.261%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
TriMas logo
TriMas Corporation engages in the design, development, manufacture, and sale of products for consumer products, aerospace, and industrial markets worldwide. The company operates through Packaging, Aerospace, and Specialty Products segments. The Packaging segment offers dispensing products, such as foaming and sanitizer pumps, lotion and hand soap pumps, beverage dispensers, perfume sprayers, and nasal and trigger sprayers; polymeric and steel caps and closures comprising food lids, flip-top and beverage closures, child resistance caps, drum and pail closures, and flexible spouts; polymeric jar products; integrated dispensers; bag-in-box products; and consumable vascular delivery and diagnostic test components under the Rieke, Taplast, Affaba & Ferrari, Intertech, Omega, and Rapak brands. The Aerospace segment provides fasteners, collars, blind bolts, rivets, ducting, and connectors for air management systems, and other highly-machined parts and components to original equipment manufacturers, supply chain distributors, and tier one suppliers, as well as maintenance, repair and overhaul (MRO)/aftermarket providers; and military and defense aerospace applications and platforms under the Monogram Aerospace Fasteners, Allfast Fastening Systems, Mac Fasteners, TFI Aerospace, RSA Engineered Products, and Martinic Engineering brands. The Specialty Products segment offers steel cylinders for use in the transportation, storage, and dispensing of compressed gases under the Norris Cylinder brand; natural gas powered wellhead engines, compressors, and replacement parts for oil and natural gas production, and other industrial and commercial markets under the Arrow brand; and spare parts for various industrial engines. It sells its products through a direct sales force, third-party agents, and distributors. TriMas Corporation was incorporated in 1986 and is headquartered in Bloomfield Hills, Michigan.
Read More on TriMas

Today's Range

Now: $39.21
Low: $37.25
High: $39.33

50 Day Range

MA: $37.39
Low: $34.04
High: $42.72

52 Week Range

Now: $39.21
Low: $25.03
High: $43.72

Volume

513,720 shs

Average Volume

477,246 shs

Market Capitalization

$1.40 billion

P/E Ratio

1.63

Dividend Yield

0.42%

Beta

0.58

Who are the company insiders with the largest holdings of TriMas?

TriMas' top insider shareholders include:
  1. Shawn Sedaghat (Director)
  2. Thomas A Amato (CEO)
  3. Thomas A Amato (Insider)
  4. Eugene A Miller (Director)
  5. Joshua A Sherbin (Insider)
  6. Robert J Zalupski (CFO)
  7. Daniel P Tredwell (Director)
  8. Herbert K Parker (Director)
  9. Marshall A Cohen (Director)
  10. Lynn Brooks (Insider)
Learn More about top insider investors at TriMas.

Who are the major institutional investors of TriMas?

TriMas' top institutional investors include:
  1. Bank of America Corp DE — 10.73%
  2. Allspring Global Investments Holdings LLC — 7.01%
  3. Dimensional Fund Advisors LP — 6.31%
  4. SG Americas Securities LLC — 1.82%
  5. Arrowstreet Capital Limited Partnership — 1.00%
  6. Punch & Associates Investment Management Inc. — 0.68%
Learn More about top institutional investors of TriMas stock.

Which institutional investors are selling TriMas stock?

In the previous quarter, TRS stock was sold by these institutional investors:
  1. Pzena Investment Management LLC
  2. Renaissance Technologies LLC
  3. Rice Hall James & Associates LLC
  4. NewGen Asset Management Ltd
  5. Allspring Global Investments Holdings LLC
  6. Hillsdale Investment Management Inc.
  7. Inceptionr LLC
  8. Bank of New York Mellon Corp

Which institutional investors are buying TriMas stock?

In the last quarter, TRS stock was bought by institutional investors including:
  1. SG Americas Securities LLC
  2. Punch & Associates Investment Management Inc.
  3. Healthcare of Ontario Pension Plan Trust Fund
  4. Kestrel Investment Management Corp
  5. Arrowstreet Capital Limited Partnership
  6. Dimensional Fund Advisors LP
  7. Bank of America Corp DE
  8. Lazard Asset Management LLC
In the previous year, these company insiders have bought TriMas stock:
  1. Shawn Sedaghat (Director)
  2. Daniel P Tredwell (Director)
  3. Jeffrey A Fielkow (Director)
  4. Adrianne Shapira (Director)
Learn More investors buying TriMas stock.

TriMas Active Insiders

Thomas A Amato
Thomas A Amato (Age 62)
CEO
Robert J Zalupski
Robert J Zalupski
CFO
Jeffrey M Greene
Jeffrey M Greene
Director
Teresa Finley
Teresa Finley
Director
Shawn Sedaghat
Director
Jeffrey A Fielkow
Jeffrey A Fielkow
Director
Daniel P Tredwell
Daniel P Tredwell
Director
1 recent trades
Joshua A Sherbin
Joshua A Sherbin
Insider