Marilyn Matz Insider Trading Activity
Marilyn Matz has been net-selling over the last 12 months with 0 purchases and 8 sales across 1 company.
TER is the most-traded position with 8 trades. The largest single transaction was a sale of TER for $510K on Aug 17, 2026.
Performance Scorecard
Forward stock performance after each transaction by Marilyn Matz. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -14.0% | 25% | 4 |
| 90 days | — | -14.8% | 0% | 2 |
| 120 days | — | -1.6% | 50% | 2 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersTER · TERADYNE, INC
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Oct 21, 2026 | TER | Sell | 400 | $350.00 | $140K | −3.1% | Director | |
Oct 15, 2026 | TER | Sell | 800 | $341.28 | $273K | −5.8% | Director | |
Sep 17, 2026 | TER | Sell | 400 | $351.11 | $140K | −2.8% | Director | |
Sep 15, 2026 | TER | Sell | 800 | $337.83 | $270K | −5.3% | Director | |
Aug 17, 2026 | TER | Sell | 1,200 | $425.00 | $510K | −7.4% | Director | |
Jul 15, 2026 | TER | Sell | 1,200 | $356.31 | $428K | −6.9% | Director | |
May 21, 2026 Filed 3d late | TER | Sell | 400 | $350.00 | $140K | −2.1% | Director | |
May 15, 2026 | TER | Sell | 800 | $338.98 | $271K | −4.0% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| TER | TERADYNE, INC | 8 | $2.2M |
Other insiders at TERADYNE, INC
3 other tracked filers at TER.