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.
Granted 7.6K · Bought 1.88M
Granted 75.3K · Bought 20.0K
Granted 152.4K
Granted 38.1K · Bought 14.4K
Granted 11.1K · Bought 36.7K
Granted 11.1K · Bought 5.7K
Granted 11.1K
Granted 37.0K · Sold 10.3K
Granted 24.3K
Granted 32.4K · Sold 5.0K
Granted 11.1K · Bought 4.7K
Granted 11.1K · Bought 6.0K
Granted 8.2K · Sold 4.0K
Granted 4.1K
Granted 13.9K
Granted 6.1K · Bought 5.2K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Sedaghat Shawn +1 co-filerDirector, 10% owner, 10% owner · 15 transactions | — | 9.83M | 7.6K | 1.88M | — |
| Amato Thomas APresident and CEO, Director · 8 transactions | +23.1% | 340.1Kas of Mar 2025 | 75.3K | 20.0K | — |
| Snyder Thomas JamesPresident and CEO, Director · 2 transactions | — | 130.3K | 152.4K | — | — |
| Finley TeresaDirector · 13 transactions | +160.4% | 75.2K | 38.1K | 14.4K | — |
| Parker Herbert KDirector · 10 transactions | +191.2% | 72.8K | 11.1K | 36.7K | — |
| Tredwell Daniel PDirector · 15 transactions | +31% | 71.0K | 11.1K | 5.7K | — |
| Stanage Nick LDirector · 3 transactions | +25.8% | 53.9K | 11.1K | — | — |
| Mell Scott AChief Financial Officer · 11 transactions | +73.9% | 44.6Kas of Mar 2025 | 37.0K | — | 10.3K |
| Stress Jill S.Chief Human Resources Officer · 9 transactions | — | 39.9K | 24.3K | — | — |
| Robin Jodi F.General Counsel and Secretary · 12 transactions | +95% | 34.2K | 32.4K | — | 5.0K |
| Boehne Holly MDirector · 4 transactions | +94.4% | 32.3K | 11.1K | 4.7K | — |
| Fielkow Jeffrey ADirector · 7 transactions | — | 21.5K | 11.1K | 6.0K | — |
| Greene Jeffrey MDirector · 3 transactions | +25.6% | 20.6Kas of Mar 2025 | 8.2K | — | 4.0K |
| Valenti Samuel IIIChairman, Director · 1 transaction | +35.1% | 15.7Kas of Mar 2024 | 4.1K | — | — |
| Swart PaulChief Financial Officer · 2 transactions | +22.3% | 14.9K | 13.9K | — | — |
| Shapira AdrianneDirector · 4 transactions | — | 11.3K | 6.1K | 5.2K | — |
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 the last 3 years: +1.96M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.