Teradyne, Inc (TER) insider trading
Every open-market stock purchase and sale by Teradyne, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Gregory Stephen Smith (CEO) and 2 others sold $5.9M in the last 90 days.
- Last insider buy: Marilyn Matz (Director), $1.4K, 2 years ago.
- Congress: Alan Armstrong bought $1K to $15K, 7 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $16M (33 sales). Last close $308.75 on Oct 22, 2026.
Recent TER insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 21, 2026 | Marilyn Matz (Director) | Sold | $140K |
| Oct 15, 2026 | Gregory Stephen Smith (CEO) | Sold | $1.4M |
| Oct 15, 2026 | Marilyn Matz (Director) | Sold | $273K |
| Oct 1, 2026 | Mercedes Johnson (Director) | Sold | $67.3K |
| Sep 25, 2026 | Peter Herweck (Director) | Bought (not open market) | — |
| Sep 25, 2026 | Paul J Tufano (Director) | Bought (not open market) | — |
| Sep 25, 2026 | Ernest E Maddock (Director) | Bought (not open market) | — |
| Sep 24, 2026 | Paul J Tufano (Director) | Bought (not open market) | — |
| Sep 24, 2026 | Peter Herweck (Director) | Bought (not open market) | — |
| Sep 24, 2026 | Andrew Chisholm Henry (Director) | Bought (not open market) | — |
| Sep 17, 2026 | Marilyn Matz (Director) | Sold | $140K |
| Sep 15, 2026 | Gregory Stephen Smith (CEO) | Sold | $1.4M |
| Sep 15, 2026 | Marilyn Matz (Director) | Sold | $270K |
| Sep 1, 2026 | Mercedes Johnson (Director) | Sold | $57K |
| Aug 17, 2026 | Gregory Stephen Smith (CEO) | Sold | $1.7M |
| Aug 17, 2026 | Marilyn Matz (Director) | Sold | $510K |
| Aug 3, 2026 | Mercedes Johnson (Director) | Sold | $59.5K |
| Jul 15, 2026 | Gregory Stephen Smith (CEO) | Sold | $1.4M |
| Jul 15, 2026 | Marilyn Matz (Director) | Sold | $428K |
| Jul 1, 2026 | Mercedes Johnson (Director) | Sold | $76.8K |
| Jun 25, 2026 | Andrew Chisholm Henry (Director) | Bought (not open market) | — |
| Jun 25, 2026 | Peter Herweck (Director) | Bought (not open market) | — |
| Jun 25, 2026 | Paul J Tufano (Director) | Bought (not open market) | — |
| Jun 15, 2026 | Gregory Stephen Smith (CEO) | Sold | $1.7M |
| Jun 15, 2026 | Marilyn Matz (Director) | Sold | $508K |
Who's trading TER
- Marilyn Matz, Director: sold $2.7M (9 sales), last Oct 21, 2026
- Gregory Stephen Smith, CEO: sold $10.9M (8 sales), last Oct 15, 2026
- Mercedes Johnson, Director: sold $1.2M (11 sales), last Oct 1, 2026
- Paul J Tufano, Director: other filings, last Sep 25, 2026
- Peter Herweck, Director: other filings, last Sep 25, 2026
- Ernest E Maddock, Director: other filings, last Sep 25, 2026
- Andrew Chisholm Henry, Director: other filings, last Sep 24, 2026
- Jean Pierre Hathout, President: other filings, last Jun 2, 2026
- Shannon John Poulin, President: sold $581K (2 sales), last May 22, 2026
- Bridget A van Kralingen, Director: other filings, last May 8, 2026
- Necip Sayiner, Director: other filings, last May 8, 2026
- Ryan Driscoll, VP: sold $257K (1 sale), last May 7, 2026
- Regan Mills, President: sold $341K (3 sales), last Apr 8, 2026
- Alan Armstrong, Senator: bought $8K (1 buy), last Mar 27, 2026
- Michelle L. Turner, CFO: other filings, last Nov 3, 2025
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