Trimas Corp insider trading
Every open-market purchase and sale by Trimas Corp's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
| Date | Insider | Trade | Shares | Price | Value | 1M after | 3M after | 6M after |
|---|
Does following Trimas Corp’s insiders pay?
From March 8, 2010 to May 7, 2026, 27 insiders reported 37 open-market purchases and 149 sales not made under a pre-set plan in Trimas Corp. Twelve months after each purchase was reported, the shares were +22.5% against the S&P 500 on average (median +9.7%), over 36 purchases with a full year of prices; 64% beat the index. After sales, the shares moved −5.7% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on March 9, 2010 into $87,695 by November 2, 2026, +13.9% a year. It held shares 58% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $55,078 (+10.8% a year), and held throughout $88,779 (+14.0%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Zalupski Robert J | Chief Financial Officer | 1 | −4.0% (1) | 0% | 25 | +6.5% (25) | March 11, 2021 |
| Sherbin Joshua A | Senior Vice Pres & Gen Counsel | 0 | — | — | 20 | −10.9% (20) | March 8, 2021 |
| Brooks Lynn A | President - Packaging Systems | 1 | +6.8% (1) | 100% | 17 | −6.5% (17) | May 28, 2014 |
| Valenti Samuel III | Chairman | 0 | — | — | 14 | −5.3% (14) | March 13, 2023 |
| Amato Thomas A | President and CEO | 7 | +5.3% (7) | 71% | 5 | −21.0% (5) | November 18, 2024 |
| Swart Paul | Chief Accounting Officer | 1 | −0.3% (1) | 0% | 11 | −13.1% (11) | July 31, 2023 |
| Tredwell Daniel P | Director | 3 | +12.3% (3) | 67% | 9 | −24.1% (9) | March 3, 2025 |
| Zeffiro A Mark | Executive Vice President & CFO | 2 | +129.6% (2) | 100% | 8 | −9.5% (8) | May 2, 2014 |
| Mell Scott A | Chief Financial Officer | 0 | — | — | 9 | −11.0% (9) | March 7, 2025 |
| Benson Thomas M | President Cequent Performance | 0 | — | — | 7 | −13.6% (7) | November 5, 2014 |
| Heartland Industrial Associates LLC | 10% owner | 0 | — | — | 7 | +34.8% (7) | March 1, 2013 |
| Parker Herbert K | Director | 4 | +3.3% (4) | 25% | 2 | −13.8% (2) | March 3, 2025 |
| Fielkow Jeffrey A | Director | 5 | +12.5% (4) | 50% | 0 | — | November 12, 2025 |
| Gougarty Nancy | Director | 0 | — | — | 4 | −5.4% (4) | May 21, 2019 |
| Cohen Marshall A | Director | 0 | — | — | 3 | −21.3% (3) | November 27, 2015 |
| Finley Teresa | Director | 3 | +11.2% (3) | 33% | 0 | — | March 3, 2025 |
| Sedaghat Shawn | Director | 3 | +30.4% (3) | 100% | 0 | — | May 21, 2025 |
| Wathen David M | President and CEO | 1 | +163.6% (1) | 100% | 2 | −16.1% (2) | July 31, 2013 |
| Boehne Holly M | Director | 2 | +22.4% (2) | 100% | 0 | — | March 6, 2025 |
| Greene Jeffrey M | Director | 0 | — | — | 2 | −16.4% (2) | May 3, 2024 |
| Trend International Holding AG | Director | 2 | +32.7% (2) | 100% | 0 | — | May 23, 2025 |
| Hip Investment Holdings I, LLC | 10% owner | 0 | — | — | 1 | +111.8% (1) | May 19, 2010 |
| Miller Eugene A | Director | 0 | — | — | 1 | −31.8% (1) | May 21, 2019 |
| Robin Jodi F. | General Counsel and Secretary | 0 | — | — | 1 | — | May 7, 2026 |
| Salik Fabio Leandro Matheus | President, TriMas Packaging | 1 | −15.1% (1) | 0% | 0 | — | October 31, 2022 |
| Schaefer John Philip | President, TriMas Aerospace | 0 | — | — | 1 | −15.8% (1) | June 9, 2022 |
| Shapira Adrianne | Director | 1 | +29.1% (1) | 100% | 0 | — | June 6, 2025 |
When several insiders traded Trimas Corp
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Trimas Corp in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 6 buying crowds with six months of prices, it averaged +11.3% against the index. After 12 selling crowds, +4.2%. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| March 31, 2025 | 6 buying | +13.4% | +45.6% | +37.4% |
| March 28, 2024 | 2 buying | −8.6% | −14.0% | −20.3% |
| November 30, 2022 | 3 buying | +11.2% | −7.9% | −18.7% |
| March 31, 2021 | 6 selling | −8.3% | −6.7% | −11.4% |
| May 29, 2020 | 2 buying | −6.1% | −1.0% | −3.2% |
| November 29, 2019 | 4 selling | −9.8% | −23.4% | −31.1% |
| May 31, 2019 | 6 selling | −4.4% | −6.6% | −32.5% |
| May 31, 2018 | 3 selling | +1.4% | −1.1% | −1.3% |
| November 30, 2017 | 3 selling | −5.0% | +8.4% | +6.2% |
| August 31, 2015 | 3 buying | +12.5% | −11.1% | −5.1% |
| May 30, 2014 | 7 selling | −14.0% | −17.7% | −28.2% |
| November 29, 2013 | 4 selling | −12.0% | −12.3% | −31.0% |