TRS TriMas Corporation

NASDAQ
$38.34

TriMas Corporation (TRS) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal Bearish Selling ran elevated versus TRS's own trailing one-year pace, with 77% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 1 buyer in the last 90 days 1 seller in the last 90 days
Insiders buying
1
2 transactions
Insiders selling
2
3 transactions
Purchases
$5.0K
126 shares
Sales
$882.0K
20,000 shares
Net activity
-$876.9K
purchases less sales

How much of that selling was preplanned? 77% planned / 23% discretionary

10b5-1 plan sales $675.5K 1 transaction · 15,000 shares
Discretionary sales $206.5K 2 transactions · 5,000 shares

Largest single sale: $675.5K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: August 12, 2026 , by Tredwell Daniel P .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Tredwell Daniel P Director Buy 64 $39.63 $2.5K 63,522
Parker Herbert K Director Sell 10b5-1 15,000 $45.03 $675.5K 57,762 −20.6% of holding
Tredwell Daniel P Director Buy 62 $40.58 $2.5K 63,458
Robin Jodi F. General Counsel and Secretary Sell 2,000 $41.60 $83.2K 34,191 −5.5% of holding
Robin Jodi F. General Counsel and Secretary Sell 3,000 $41.09 $123.3K 36,191 −7.7% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.