TER · Insider Trading
Teradyne, Inc. Common Stock
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-19 | Marilyn Matz | Director | Sell | −800 | −$273.02K |
| 2026-10-19 | Gregory Stephen Smith | President and CEO | Sell | −4,000 | −$1.37M |
| 2026-10-02 | Mercedes Johnson | Director | Sell | −167 | −$67.28K |
| 2026-09-28 | Peter Herweck | Director | MIXED | +81 | — |
| 2026-09-28 | Paul J Tufano | Director | MIXED | +160 | — |
| 2026-09-28 | Ernest E Maddock | Director | J | +2 | — |
| 2026-09-28 | Andrew Chisholm Henry | Director | A | +64 | — |
| 2026-09-18 | Marilyn Matz | Director | Sell | −400 | −$140.44K |
| 2026-09-16 | Marilyn Matz | Director | Sell | −800 | −$270.26K |
| 2026-09-16 | Gregory Stephen Smith | President and CEO | Sell | −4,000 | −$1.35M |
| 2026-09-02 | Mercedes Johnson | Director | Sell | −167 | −$57.00K |
| 2026-08-18 | Marilyn Matz | Director | Sell | −1,200 | −$510.00K |
| 2026-08-18 | Gregory Stephen Smith | President and CEO | Sell | −4,000 | −$1.70M |
| 2026-08-04 | Mercedes Johnson | Director | Sell | −166 | −$59.45K |
| 2026-07-16 | Marilyn Matz | Director | Sell | −1,200 | −$427.57K |
| 2026-07-16 | Gregory Stephen Smith | President and CEO | Sell | −4,000 | −$1.43M |
| 2026-07-02 | Mercedes Johnson | Director | Sell | −167 | −$76.82K |
| 2026-06-29 | Paul J Tufano | Director | A | +116 | — |
| 2026-06-29 | Peter Herweck | Director | A | +63 | — |
| 2026-06-29 | Andrew Chisholm Henry | Director | A | +52 | — |
| 2026-06-16 | Gregory Stephen Smith | President and CEO | Sell | −4,000 | −$1.69M |
| 2026-06-16 | Ernest E Maddock | Director | J | +2 | — |
| 2026-06-16 | Marilyn Matz | Director | Sell | −1,200 | −$507.64K |
| 2026-06-16 | Peter Herweck | Director | J | +4 | — |
| 2026-06-16 | Paul J Tufano | Director | J | +19 | — |
| 2026-06-03 | Mercedes Johnson | Director | Sell | −167 | −$61.75K |
| 2026-06-03 | Jean Pierre Hathout | President, Teradyne Robotics | F | −441 | −$166.96K |
| 2026-05-26 | Marilyn Matz | Director | Sell | −400 | −$140.00K |
| 2026-05-26 | Shannon John Poulin | President, Semiconductor Test | MIXED | −352 | −$875.85K |
| 2026-05-19 | Marilyn Matz | Director | Sell | −800 | −$271.18K |
| 2026-05-19 | Gregory Stephen Smith | President and CEO | MIXED | −4,000 | −$2.58M |
| 2026-05-12 | Andrew Chisholm Henry | Director | A | +668 | — |
| 2026-05-12 | Ernest E Maddock | Director | A | +668 | — |
| 2026-05-12 | Necip Sayiner | Director | A | +668 | — |
| 2026-05-12 | Paul J Tufano | Director | A | +668 | — |
| 2026-05-12 | Bridget A van Kralingen | Director | A | +668 | — |
| 2026-05-12 | Marilyn Matz | Director | A | +668 | — |
| 2026-05-12 | Mercedes Johnson | Director | A | +668 | — |
| 2026-05-12 | Peter Herweck | Director | A | +668 | — |
| 2026-05-11 | Ryan Driscoll | VP, General Counsel, Secretary | Sell | −680 | −$256.77K |
| 2026-04-09 | Regan Mills | President, Product Test | Sell | −16 | −$5.47K |
| 2026-04-07 | Mercedes Johnson | Director | Sell | −625 | −$195.12K |
| 2026-04-03 | Regan Mills | President, Product Test | MIXED | −474 | −$142.61K |
| 2026-04-03 | Shannon John Poulin | President, Semiconductor Test | F | −1,162 | −$362.78K |
| 2026-03-30 | Andrew Chisholm Henry | Director | A | +75 | — |
| 2026-03-30 | Paul J Tufano | Director | A | +159 | — |
| 2026-03-30 | Peter Herweck | Director | A | +92 | — |
| 2026-03-17 | Peter Herweck | Director | J | +5 | — |
| 2026-03-17 | Paul J Tufano | Director | J | +25 | — |
| 2026-03-17 | Ernest E Maddock | Director | J | +2 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Gregory Stephen Smith | President and CEO | 104,495 | $32.26M |
| Paul J Tufano | Director | 66,008 | $20.38M |
| Sanjay Mehta | VP and Chief Financial Officer | 36,576 | $11.29M |
| Richard John Burns | President, Semiconductor Test | 25,190 | $7.78M |
| Ujjwal Kumar | President, Teradyne Robotics | 16,369 | $5.05M |
| Peter Herweck | Director | 16,278 | $5.03M |
| Shannon John Poulin | President, Semiconductor Test | 15,065 | $4.65M |
| John Francis Wood | President, System Test Group | 14,137 | $4.36M |
| Marilyn Matz | Director | 13,040 | $4.03M |
| Regan Mills | President, Product Test | 11,399 | $3.52M |
| Michelle L. Turner | Chief Financial Officer | 11,260 | $3.48M |
| Ernest E Maddock | Director | 10,269 | $3.17M |
| Jean Pierre Hathout | President, Teradyne Robotics | 9,733 | $3.01M |
| Mercedes Johnson | Director | 8,073 | $2.49M |
| Ryan Driscoll | VP, General Counsel, Secretary | 7,665 | $2.37M |
| Bridget A van Kralingen | Director | 6,224 | $1.92M |
| John Lukez | President, LitePoint Corp. | 4,185 | $1.29M |
| Andrew Chisholm Henry | Director | 2,991 | $923.47K |
| Necip Sayiner | Director | 2,800 | $864.50K |
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.
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.