TER (Teradyne, Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by TER officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-02 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-08-18 | MARILYN MATZ | Director | Sell | — | — |
| 2026-08-18 | Gregory Stephen Smith | President and CEO | Sell | — | — |
| 2026-08-04 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-07-16 | MARILYN MATZ | Director | Sell | — | — |
| 2026-07-16 | Gregory Stephen Smith | President and CEO | Sell | — | — |
| 2026-07-02 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-06-29 | PAUL J TUFANO | Director | A | — | — |
| 2026-06-29 | Peter Herweck | Director | A | — | — |
| 2026-06-29 | Andrew Chisholm Henry | Director | A | — | — |
| 2026-06-16 | Gregory Stephen Smith | President and CEO | Sell | — | — |
| 2026-06-16 | ERNEST E MADDOCK | Director | J | — | — |
| 2026-06-16 | MARILYN MATZ | Director | Sell | — | — |
| 2026-06-16 | Peter Herweck | Director | J | — | — |
| 2026-06-16 | PAUL J TUFANO | Director | J | — | — |
| 2026-06-03 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-06-03 | Jean Pierre Hathout | President, Teradyne Robotics | F | — | — |
| 2026-05-26 | MARILYN MATZ | Director | Sell | — | — |
| 2026-05-26 | Shannon John Poulin | President, Semiconductor Test | MIXED | — | — |
| 2026-05-19 | MARILYN MATZ | Director | Sell | — | — |
| 2026-05-19 | Gregory Stephen Smith | President and CEO | MIXED | — | — |
| 2026-05-12 | Andrew Chisholm Henry | Director | A | — | — |
| 2026-05-12 | ERNEST E MADDOCK | Director | A | — | — |
| 2026-05-12 | Necip Sayiner | Director | A | — | — |
| 2026-05-12 | PAUL J TUFANO | Director | A | — | — |
| 2026-05-12 | Bridget A van Kralingen | Director | A | — | — |
| 2026-05-12 | MARILYN MATZ | Director | A | — | — |
| 2026-05-12 | MERCEDES JOHNSON | Director | A | — | — |
| 2026-05-12 | Peter Herweck | Director | A | — | — |
| 2026-05-11 | Ryan Driscoll | VP, General Counsel, Secretary | Sell | — | — |
| 2026-04-09 | Regan Mills | President, Product Test | Sell | — | — |
| 2026-04-07 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-04-03 | Regan Mills | President, Product Test | MIXED | — | — |
| 2026-04-03 | Shannon John Poulin | President, Semiconductor Test | F | — | — |
| 2026-03-30 | Andrew Chisholm Henry | Director | A | — | — |
| 2026-03-30 | PAUL J TUFANO | Director | A | — | — |
| 2026-03-30 | Peter Herweck | Director | A | — | — |
| 2026-03-17 | Peter Herweck | Director | J | — | — |
| 2026-03-17 | PAUL J TUFANO | Director | J | — | — |
| 2026-03-17 | ERNEST E MADDOCK | Director | J | — | — |
| 2026-03-06 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-02-27 | Regan Mills | President, Product Test | Sell | — | — |
| 2026-02-06 | MERCEDES JOHNSON | Director | Sell | — | — |
| 2026-02-06 | Jean Pierre Hathout | President, Teradyne Robotics | A | — | — |
| 2026-02-06 | Regan Mills | President, Product Test | A | — | — |
| 2026-02-06 | Ryan Driscoll | VP, General Counsel, Secretary | A | — | — |
| 2026-02-06 | Shannon John Poulin | President, Semiconductor Test | A | — | — |
| 2026-02-06 | Gregory Stephen Smith | President and CEO | A | — | — |
| 2026-02-04 | Ryan Driscoll | VP, General Counsel, Secretary | F | — | — |
| 2026-02-04 | Gregory Stephen Smith | President and CEO | F | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 256,226 | — |
| — | CEO | 208,600 | — |
| — | Director | 136,127 | — |
| — | President and CEO | 112,495 | — |
| — | Director | 68,747 | — |
| — | Director | 67,741 | — |
| — | Director | 65,848 | — |
| — | Director | 62,729 | — |
| — | President, LitePoint Corp. | 52,772 | — |
| — | VP and CFO | 46,322 | — |
| — | Director | 43,921 | — |
| — | Exec. VP, Corp. Development | 41,570 | — |
| — | VP and Chief Financial Officer | 36,576 | — |
| — | President, SystemsTestDivision | 36,040 | — |
| — | VP,GeneralCounsel&Secretary | 32,748 | — |
| — | Director | 30,163 | — |
| — | President, Semiconductor Test | 25,190 | — |
| — | Director | 24,815 | — |
| — | VP, General Counsel, Secretary | 24,643 | — |
| — | Director | 24,192 | — |
| — | President, Teradyne Robotics | 16,369 | — |
| — | Director | 16,201 | — |
| — | President, Semiconductor Test | 15,065 | — |
| — | Director | 15,040 | — |
| — | President, System Test Group | 14,137 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the TER quote page; the site-wide leaderboard is on the insider transactions hub.