Trimas Corporation
A maker of specialty packaging and steel cylinders, TriMas designs closures, dispensing systems, and life-sciences components used in consumer, medical, and industrial products. Its Specialty Products arm, Norris Cylinder, is the only remaining U.S. manufacturer of forged steel cylinders for compressed and packaged gases. The company has agreed to sell its Aerospace segment to focus on packaging and life sciences.
Sold 333.0K
Granted 7.6K · Bought 1.88M
Bought 146.7K · Sold 12.50M
Granted 663.8K · Bought 121.4K · Sold 113.4K
Granted 713.9K · Bought 38.9K · Sold 98.6K
Granted 40.4K · Bought 150.0K
Granted 152.4K
Granted 168.5K · Bought 29.5K · Sold 146.3K
Granted 84.3K · Bought 15.0K · Sold 10.0K
Granted 54.3K · Bought 27.1K
Granted 56.5K · Bought 39.2K · Sold 23.7K
Granted 52.0K · Bought 18.3K · Sold 2.40M
Granted 64.3K · Bought 2.0K
Granted 48.6K
Granted 82.3K · Sold 35.3K
Granted 288.7K · Bought 9.8K · Sold 161.5K
Granted 70.6K · Sold 14.2K
Granted 54.0K · Sold 44.6K
Granted 24.3K
Granted 32.4K · Sold 5.0K
Granted 16.7K
Granted 25.1K · Bought 7.2K
Granted 292.8K · Bought 6.0K · Sold 273.6K
Granted 15.1K · Bought 4.3K
Granted 43.4K · Sold 20.9K
Granted 14.5K · Bought 7.0K
Granted 16.0K · Bought 13.6K
Granted 31.1K · Sold 10.5K
Granted 383.3K · Bought 7.8K · Sold 247.8K
Granted 267.7K · Bought 196.3K · Sold 307.5K
Granted 74.6K · Bought 2.0K · Sold 27.0K
Granted 14.0K · Bought 10.0K
Granted 6.1K · Bought 5.2K
Granted 7.2K · Sold 6.8K
Granted 11.0K · Bought 8.3K
Bought 2.0K
Granted 12.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Heartland Industrial Associates LLC +1 co-filer10% owner, See Footnote 1 · 11 transactions | — | 46.53Mas of May 2010 | — | — | 333.0K |
| Sedaghat Shawn +1 co-filerDirector, 10% owner, 10% owner · 15 transactions | — | 9.83M | 7.6K | 1.88M | — |
| Heartland Industrial Associates LLCReporting owner · 50 transactions | — | 6.31Mas of Feb 2013 | — | 146.7K | 12.50M |
| Wathen David MPresident and CEO, Director · 65 transactions | — | 620.2Kas of Mar 2016 | 663.8K | 121.4K | 113.4K |
| Amato Thomas APresident and CEO, Director · 52 transactions | — | 340.1Kas of Mar 2025 | 713.9K | 38.9K | 98.6K |
| Beard Grant Hformer President and CEO · 32 transactions | — | 256.5Kas of Jan 2009 | 40.4K | 150.0K | — |
| Snyder Thomas JamesPresident and CEO, Director · 2 transactions | — | 130.3K | 152.4K | — | — |
| Zeffiro A MarkExecutive Vice President & CFO · 58 transactions | — | 122.3Kas of Oct 2014 | 168.5K | 29.5K | 146.3K |
| Miller Eugene ADirector · 37 transactions | — | 101.5Kas of Apr 2020 | 84.3K | 15.0K | 10.0K |
| Finley TeresaDirector · 29 transactions | — | 75.2K | 54.3K | 27.1K | — |
| Parker Herbert KDirector · 30 transactions | — | 72.8K | 56.5K | 39.2K | 23.7K |
| Tredwell Daniel PDirector · 71 transactions | — | 71.0K | 52.0K | 18.3K | 2.40M |
| Gabrys Richard MarcelDirector · 16 transactions | — | 66.2Kas of May 2019 | 64.3K | 2.0K | — |
| Stanage Nick LDirector · 13 transactions | — | 53.9K | 48.6K | — | — |
| Benson Thomas MPresident Cequent Performance · 28 transactions | — | 53.2Kas of Dec 2014 | 82.3K | — | 35.3K |
| Zalupski Robert JChief Financial Officer · 114 transactions | — | 51.9Kas of Mar 2021 | 288.7K | 9.8K | 161.5K |
| Mell Scott AChief Financial Officer · 21 transactions | — | 44.6Kas of Mar 2025 | 70.6K | — | 14.2K |
| Cohen Marshall ADirector · 17 transactions | — | 43.8Kas of Jan 2016 | 54.0K | — | 44.6K |
| Stress Jill S.Chief Human Resources Officer · 9 transactions | — | 39.9K | 24.3K | — | — |
| Robin Jodi F.General Counsel and Secretary · 12 transactions | — | 34.2K | 32.4K | — | 5.0K |
| Hindman Colin EVice President Human Resources · 10 transactions | — | 34.1Kas of Mar 2016 | 16.7K | — | — |
| Boehne Holly MDirector · 9 transactions | — | 32.3K | 25.1K | 7.2K | — |
| Brooks Lynn APresident - Packaging Systems · 95 transactions | — | 29.3Kas of May 2014 | 292.8K | 6.0K | 273.6K |
| Salik Fabio Leandro MatheusPresident, TriMas Packaging · 8 transactions | — | 28.2Kas of Aug 2023 | 15.1K | 4.3K | — |
| Gougarty NancyDirector · 28 transactions | — | 24.4Kas of May 2019 | 43.4K | — | 20.9K |
| Fielkow Jeffrey ADirector · 9 transactions | — | 21.5K | 14.5K | 7.0K | — |
| Schwartz Edward Lformer Executive VP · 14 transactions | — | 20.7Kas of Mar 2009 | 16.0K | 13.6K | — |
| Greene Jeffrey MDirector · 21 transactions | — | 20.6Kas of Mar 2025 | 31.1K | — | 10.5K |
| Sherbin Joshua ASenior Vice Pres & Gen Counsel · 99 transactions | — | 19.8Kas of Mar 2021 | 383.3K | 7.8K | 247.8K |
| Valenti Samuel IIIChairman, Director · 53 transactions | — | 15.7Kas of Mar 2024 | 267.7K | 196.3K | 307.5K |
| Swart PaulChief Financial Officer · 67 transactions | — | 14.9K | 74.6K | 2.0K | 27.0K |
| Paulsen Jeffrey Bformer Presid. Energy/Indust. · 4 transactions | — | 12.4Kas of Jun 2008 | 14.0K | 10.0K | — |
| Shapira AdrianneDirector · 4 transactions | — | 11.3K | 6.1K | 5.2K | — |
| Schaefer John PhilipPresident, TriMas Aerospace · 5 transactions | — | 11.1Kas of Jun 2022 | 7.2K | — | 6.8K |
| Autry Elvin R Jrformer Chief Financial Officer · 7 transactions | — | 10.5Kas of Apr 2008 | 11.0K | 8.3K | — |
| Campbell Brian P/Director · 1 transaction | — | 2.0Kas of Nov 2007 | — | 2.0K | — |
| Newcom Dwayne Mformer VP Human Resources · 3 transactions | — | 1.9Kas of Jun 2008 | 12.0K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -14.03M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.