Marilyn Matz is Director at TERADYNE, INC (TER). They have made 7 open-market trades across 2 companies since 2015, most recently 2026-10-21.
CIK 0001618274
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $1K since 2024, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TER | SELL · 10b5-1 | 2026-10-21 | 2026-10-22 | $350.00 | $140K | -12.1% | — | — |
| TER | SELL · 10b5-1 | 2026-10-15 | 2026-10-19 | $341.28 | $273K | -9.8% | — | — |
| TER | SELL · 10b5-1 | 2026-09-17 | 2026-09-18 | $351.11 | $140K | +5.8% | -11.5% | — |
| TER | SELL · 10b5-1 | 2026-09-15 | 2026-09-16 | $337.83 | $270K | +14.0% | -7.7% | — |
| TER | SELL · 10b5-1 | 2026-08-17 | 2026-08-18 | $425.00 | $510K | -12.6% | -12.8% | — |
| TER | SELL · 10b5-1 | 2026-07-15 | 2026-07-16 | $356.31 | $428K | +4.9% | +45.0% | +17.6% |
| TER | SELL · 10b5-1 | 2026-06-15 | 2026-06-16 | $423.03 | $508K | +7.6% | -25.0% | -23.5% |
| TER | SELL · 10b5-1 | 2026-05-21 | 2026-05-26 | $350.00 | $140K | -11.4% | +16.9% | -9.6% |
| TER | SELL · 10b5-1 | 2026-05-15 | 2026-05-19 | $338.98 | $271K | +12.6% | +33.4% | +35.0% |
| TER | BUY | 2024-03-15 | 2024-03-19 | $108.73 | $1K | +8.4% | -3.8% | +39.0% |
| TER | SELL | 2022-01-03 | 2022-01-04 | $164.86 | $1.4M | +0.2% | -31.9% | -27.6% |
| TER | SELL | 2021-09-10 | 2021-09-13 | $120.18 | $999K | -2.5% | -11.7% | +26.5% |
| TER | SELL | 2019-07-26 | 2019-07-29 | $57.00 | $29K | -7.8% | -8.9% | +12.7% |
| LOGM | SELL | 2016-08-10 | 2016-08-12 | $83.20 | $42K | -2.2% | +7.0% | +23.4% |
| LOGM | SELL | 2015-12-01 | 2015-12-02 | $71.65 | $36K | -16.8% | -6.6% | -20.4% |
| LOGM | SELL | 2015-09-11 | 2015-09-11 | $62.18 | $143K | -16.8% | -6.6% | -6.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.