Teradyne (TER) insider trading
14 directors and officers declare holding shares of Teradyne (TER), each in their own filing with the SEC. The largest is Gregory Stephen Smith (President and CEO · Director) with 108,495 shares, 0.07% of the company, worth $43.7M at the last close. The most recent move on file: Mercedes Johnson sold 167 shares at $402.90 on Oct 1, 2026. Of the 14 with a trade on file, 7 last bought and 7 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Gregory Stephen Smith | President and CEO · Director | 108,495 | 0.07% | $43.7M | sold 4,000 shares at $337.83 on Sep 15, 2026 | Sep 15, 2026 |
| Paul J. Tufano | Director | 66,008 | 0.04% | $26.6M | bought 141 shares on Sep 24, 2026 | Sep 25, 2026 |
| Peter Herweck | Director | 16,282 | 0.01% | $6.6M | bought 77 shares on Sep 24, 2026 | Sep 25, 2026 |
| Shannon John Poulin | President, Semiconductor Test | 15,722 | 0.01% | $6.3M | sold 1,664 shares at $345.37 on May 21, 2026 | May 22, 2026 |
| Marilyn Matz | Director | 13,841 | <0.01% | $5.6M | sold 400 shares at $351.11 on Sep 17, 2026 | Sep 17, 2026 |
| Regan Mills | President, Product Test | 11,399 | <0.01% | $4.6M | sold 16 shares at $342.17 on Apr 8, 2026 | Apr 8, 2026 |
| Michelle L. Turner | Chief Financial Officer | 11,260 | <0.01% | $4.5M | bought 11,144 shares on Nov 3, 2025 | Nov 3, 2025 |
| Ernest E. Maddock | Director | 10,269 | <0.01% | $4.1M | bought 2 shares on Sep 25, 2026 | Sep 25, 2026 |
| Jean Pierre Hathout | President, Teradyne Robotics | 9,733 | <0.01% | $3.9M | sold 441 shares at $369.47 on Jun 1, 2026 | Jun 2, 2026 |
| Mercedes Johnson | Director | 8,073 | <0.01% | $3.3M | sold 167 shares at $402.90 on Oct 1, 2026 | Oct 1, 2026 |
| Ryan Driscoll | VP, General Counsel, Secretary | 7,665 | <0.01% | $3.1M | sold 680 shares at $377.60 on May 7, 2026 | May 7, 2026 |
| Bridget A. van Kralingen | Director | 6,224 | <0.01% | $2.5M | bought 668 shares on May 8, 2026 | May 8, 2026 |
| Andrew Chisholm Henry | Director | 2,991 | <0.01% | $1.2M | bought 64 shares on Sep 24, 2026 | Sep 24, 2026 |
| Necip Sayiner | Director | 2,800 | <0.01% | $1.1M | bought 668 shares on May 8, 2026 | May 8, 2026 |
Each insider at Teradyne
- Gregory Stephen Smith — President and CEO · Director
- Paul J. Tufano — Director
- Peter Herweck — Director
- Shannon John Poulin — President, Semiconductor Test
- Marilyn Matz — Director
- Regan Mills — President, Product Test
- Michelle L. Turner — Chief Financial Officer
- Ernest E. Maddock — Director
- Jean Pierre Hathout — President, Teradyne Robotics
- Mercedes Johnson — Director
- Ryan Driscoll — VP, General Counsel, Secretary
- Bridget A. van Kralingen — Director
No longer filing
- Ujjwal Kumar — President, Teradyne Robotics
- Sanjay Mehta — VP and Chief Financial Officer
- Richard John Burns — President, Semiconductor Test
- John Francis Wood — President, System Test Group
- John Lukez — President, LitePoint Corp.
What insiders bought and sold across AI stocks · All filings on sec.gov