TriMas Corporation (TRS) has 20 known insider and institutional holders on record. The largest holder is SEDAGHAT SHAWN with 4,177,660 shares. Other notable holders include Trend International Holding AG and HEARTLAND INDUSTRIAL ASSOCIATES LLC.
Over the last 12 months, insiders have made 36 transactions in TRS stock — 26 buys (valued at $26.17M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
TRS Insider Ownership
Top Holder
SEDAGHAT SHAWN
4,177,660 shares
Buys (12 mo)
26
$26.17M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Sedaghat Shawn |
10 Percent Owner |
4,177,660 |
2026-03-16 |
|
| 2 |
Trend International Holding Ag |
10 Percent Owner |
4,170,667 |
2024-10-16 |
|
| 3 |
Heartland Industrial Associates Llc |
10 Percent Owner |
2,404,972 |
2013-03-01 |
|
| 4 |
Wathen David M |
President and CEO |
620,163 |
2016-03-07 |
|
| 5 |
Amato Thomas A |
President and CEO |
332,567 |
2025-03-18 |
|
| 6 |
Miller Eugene A |
Director |
101,532 |
2020-04-03 |
|
| 7 |
Snyder Thomas James |
President and CEO |
100,000 |
2025-06-25 |
|
| 8 |
Finley Teresa |
Director |
75,152 |
2026-03-23 |
|
| 9 |
Parker Herbert K |
Director |
72,762 |
2026-03-16 |
|
| 10 |
Gabrys Richard Marcel |
Director |
66,200 |
2019-05-03 |
|
| 11 |
Tredwell Daniel P |
Director |
63,396 |
2026-03-16 |
|
| 12 |
Stanage Nick L |
Director |
53,853 |
2026-03-16 |
|
| 13 |
Zalupski Robert J |
Chief Financial Officer |
51,861 |
2021-03-15 |
|
| 14 |
Mell Scott A |
Chief Financial Officer |
44,642 |
2025-03-18 |
|
| 15 |
Cohen Marshall A |
Director |
43,770 |
2016-01-05 |
|
| 16 |
Robin Jodi F. |
General Counsel and Secretary |
39,191 |
2026-03-16 |
|
| 17 |
Hindman Colin E |
Vice President Human Resources |
34,145 |
2016-03-07 |
|
| 18 |
Boehne Holly M |
Director |
32,346 |
2026-03-16 |
|
| 19 |
Brooks Lynn A |
President - Packaging Systems |
29,283 |
2014-05-28 |
|
| 20 |
Salik Fabio Leandro Matheus |
President, Trimas Packaging |
28,245 |
2023-08-02 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-20 |
Finley Teresa |
Director |
Tax Withholding of RSU |
6,192 |
$34.04 |
$210.78K |
| 2026-03-14 |
Stress Jill S. |
Chief Human Resources Officer |
Tax Withholding of RSU |
1,999 |
$35.04 |
$70.04K |
| 2026-03-14 |
Robin Jodi F. |
General Counsel and Secretary |
Tax Withholding of RSU |
2,388 |
$35.04 |
$83.68K |
| 2026-03-14 |
Fielkow Jeffrey A |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Boehne Holly M |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Finley Teresa |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Shapira Adrianne |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Swart Paul |
Chief Financial Officer |
RSU Award |
6,849 |
- |
- |
| 2026-03-14 |
Parker Herbert K |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Tredwell Daniel P |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Stanage Nick L |
Director |
RSU Award |
2,853 |
- |
- |
| 2026-03-14 |
Sedaghat Shawn |
10 Percent Owner |
RSU Award |
2,853 |
- |
- |
| 2026-03-11 |
Stress Jill S. |
Chief Human Resources Officer |
Tax Withholding of RSU |
1,128 |
$36.93 |
$41.66K |
| 2026-03-11 |
Robin Jodi F. |
General Counsel and Secretary |
Tax Withholding of RSU |
1,128 |
$36.93 |
$41.66K |
| 2026-03-05 |
Tredwell Daniel P |
Director |
Informative Buy |
60 |
$39.38 |
$2.36K |
| 2026-02-12 |
Stress Jill S. |
Chief Human Resources Officer |
Tax Withholding of RSU |
2,502 |
$35.75 |
$89.45K |
| 2026-02-12 |
Robin Jodi F. |
General Counsel and Secretary |
Tax Withholding of RSU |
2,493 |
$35.75 |
$89.12K |
| 2026-01-01 |
Swart Paul |
Chief Financial Officer |
RSU Award |
7,052 |
- |
- |
| 2025-12-15 |
Swart Paul |
Chief Financial Officer |
Unknown |
- |
- |
- |
| 2025-11-12 |
Tredwell Daniel P |
Director |
Informative Buy |
74 |
$31.94 |
$2.36K |
| 2025-11-11 |
Fielkow Jeffrey A |
Director |
Informative Buy |
2,000 |
$31.46 |
$62.92K |
| 2025-08-11 |
Tredwell Daniel P |
Director |
Informative Buy |
66 |
$35.39 |
$2.34K |
| 2025-06-24 |
Snyder Thomas James |
President and CEO |
RSU Award |
100,000 |
$30.00 |
$3M |
| 2025-06-23 |
Snyder Thomas James |
President and CEO |
Unknown |
- |
- |
- |
| 2025-06-05 |
Shapira Adrianne |
Director |
Informative Buy |
4,000 |
$25.82 |
$103.29K |