TER
insider transactionsTERADYNE, INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-21.1K
0 buy · 21.1K sell
Net value · 365d
-$7.4M
$0 in · $7.4M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
16
0 buy · 21.1K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
President and CEO · 10b5-1
$1.7M
4.0K sh · $423.03
Own -3%
-
Sell·S
Director · 10b5-1
$507.6K
1.2K sh · $423.03
Own -6%
-
Other·J
Director
$0
19 sh
-
Other·J
Director
$0
2 sh
-
Other·J
Director
$0
4 sh
-
Sell·S
Director · 10b5-1
$61.7K
167 sh · $369.74
Own -2%
-
Other·F
President, Teradyne Robotics
$68.3K
174 sh · $392.62
Own -2%
-
Other·F
President, Teradyne Robotics
$98.6K
267 sh · $369.47
Own -3%
-
Sell·S
President, Semiconductor Test · 10b5-1
$232.9K
656 sh · $355.00
Own -4%
-
Grant·A
Director
$0
2.6K sh
Own +6%
-
Exercise·M
President, Semiconductor Test · 10b5-1
$0
2.8K sh
Own +50%
-
Other·F
President, Semiconductor Test · 10b5-1
$529.7K
1.5K sh · $345.98
Own -9%
-
Exercise·M
President, Semiconductor Test · 10b5-1
$234.9K
2.8K sh · $82.61
Own +19%
-
Sell·S
President, Semiconductor Test · 10b5-1
$348.1K
1.0K sh · $345.37
Own -6%
-
Sell·S
Director · 10b5-1
$140.0K
400 sh · $350.00
Own -2%
-
Exercise·M
President and CEO · 10b5-1
$0
4.6K sh
Own New
-
Sell·S
President and CEO · 10b5-1
$2.9M
8.6K sh · $338.98
Own -6%
-
Exercise·M
President and CEO · 10b5-1
$331.4K
4.6K sh · $72.10
Own +4%
-
Sell·S
Director · 10b5-1
$271.2K
800 sh · $338.98
Own -4%
-
Grant·A
Director
$0
668 sh
Own +12%
-
Grant·A
Director
$0
668 sh
Own +1%
-
Grant·A
Director
$0
668 sh
Own +31%
-
Grant·A
Director
$0
668 sh
Own +3%
-
Grant·A
Director
$0
668 sh
Own +7%
-
Grant·A
Director
$0
668 sh
Own +10%
-
Grant·A
Director
$0
668 sh
Own +4%
-
Grant·A
Director
$0
668 sh
Own +30%
-
Sell·S
VP, General Counsel, Secretary · 10b5-1
$256.8K
680 sh · $377.60
Own -8%
-
Grant·A
Director
$0
453 sh
Own New
-
Sell·S
Regan Mills KEY
President, Product Test · 10b5-1
$5.5K
16 sh · $342.17
Own -0%
-
Sell·S
Director · 10b5-1
$195.1K
625 sh · $312.20
Own -9%
-
Sell·S
Regan Mills KEY
President, Product Test · 10b5-1
$73.3K
252 sh · $290.88
Own -2%
-
Other·F
President, Semiconductor Test
$362.8K
1.2K sh · $312.20
Own -7%
-
Other·F
Regan Mills KEY
President, Product Test · 10b5-1
$69.3K
222 sh · $312.20
Own -2%
-
Grant·A
Director
$0
159 sh
Own +0%
-
Grant·A
Director
$0
92 sh
Own +1%
-
Grant·A
Director
$0
75 sh
Own +4%
-
Other·J
Director
$0
25 sh
-
Other·J
Director
$0
2 sh
-
Other·J
Director
$0
5 sh
-
Sell·S
Director · 10b5-1
$187.0K
625 sh · $299.20
Own -8%
-
Sell·S
Regan Mills KEY
President, Product Test
$262.3K
788 sh · $332.87
Own -6%
-
Sell·S
Director · 10b5-1
$166.9K
625 sh · $266.98
Own -8%
-
Grant·A
President and CEO
$0
11.8K sh
Own New
-
Grant·A
President and CEO
$0
13.4K sh
Own +12%
-
Grant·A
President, Semiconductor Test
$0
3.9K sh
Own New
-
Grant·A
President, Semiconductor Test
$0
4.5K sh
Own +35%
-
Grant·A
Regan Mills KEY
President, Product Test
$0
886 sh
Own New
-
Grant·A
Regan Mills KEY
President, Product Test
$0
1.0K sh
Own +9%
-
Grant·A
President, Teradyne Robotics
$0
886 sh
Own New
-
Grant·A
President, Teradyne Robotics
$0
1.0K sh
Own +11%
-
Grant·A
VP, General Counsel, Secretary
$0
1.6K sh
Own New
-
Grant·A
VP, General Counsel, Secretary
$0
1.8K sh
Own +27%
-
Other·F
President and CEO
$1.7M
6.8K sh · $249.53
Own -6%
-
Other·F
Regan Mills KEY
President, Product Test
$86.1K
345 sh · $249.53
Own -3%
-
Other·F
President, Teradyne Robotics
$95.1K
381 sh · $249.53
Own -4%
-
Other·F
VP, General Counsel, Secretary
$103.3K
414 sh · $249.53
Own -6%
-
Other·F
President and CEO
$121.7K
486 sh · $250.48
Own -0%
-
Other·F
Regan Mills KEY
President, Product Test
$41.8K
167 sh · $250.48
Own -1%
-
Other·F
VP, General Counsel, Secretary
$20.5K
82 sh · $250.48
Own -1%
-
Other·F
President and CEO
$7.3M
30.6K sh · $238.94
Own -20%
-
Grant·A
President and CEO
$0
59.5K sh
Own +64%
-
Other·F
Regan Mills KEY
President, Product Test
$46.1K
193 sh · $238.94
Own -2%
-
Other·F
VP, General Counsel, Secretary
$27.0K
113 sh · $238.94
Own -2%
-
Sell·S
Director · 10b5-1
$132.4K
625 sh · $211.85
Own -7%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 15, 2026 | Gregory Stephen Smith KEY 10b5-1 | Sell S | 4.0K | $1.7M |
| Jun 15, 2026 | Marilyn Matz 10b5-1 | Sell S | 1.2K | $507.6K |
| Jun 12, 2026 | Paul J Tufano | Other J | 19 | $0 |
| Jun 12, 2026 | Ernest E Maddock | Other J | 2 | $0 |
| Jun 12, 2026 | Peter Herweck | Other J | 4 | $0 |
| Jun 2, 2026 | Mercedes Johnson 10b5-1 | Sell S | 167 | $61.7K |
| Jun 2, 2026 | Jean Pierre Hathout KEY | Other F | 174 | $68.3K |
| Jun 1, 2026 | Jean Pierre Hathout KEY | Other F | 267 | $98.6K |
| May 22, 2026 | Shannon John Poulin KEY 10b5-1 | Sell S | 656 | $232.9K |
| May 22, 2026 | Ernest E Maddock | Grant A | 2.6K | $0 |
| May 21, 2026 | Shannon John Poulin KEY 10b5-1 | Exercise M | 2.8K | $0 |
| May 21, 2026 | Shannon John Poulin KEY 10b5-1 | Other F | 1.5K | $529.7K |
| May 21, 2026 | Shannon John Poulin KEY 10b5-1 | Exercise M | 2.8K | $234.9K |
| May 21, 2026 | Shannon John Poulin KEY 10b5-1 | Sell S | 1.0K | $348.1K |
| May 21, 2026 | Marilyn Matz 10b5-1 | Sell S | 400 | $140.0K |
| May 15, 2026 | Gregory Stephen Smith KEY 10b5-1 | Exercise M | 4.6K | $0 |
| May 15, 2026 | Gregory Stephen Smith KEY 10b5-1 | Sell S | 8.6K | $2.9M |
| May 15, 2026 | Gregory Stephen Smith KEY 10b5-1 | Exercise M | 4.6K | $331.4K |
| May 15, 2026 | Marilyn Matz 10b5-1 | Sell S | 800 | $271.2K |
| May 8, 2026 | Bridget A Van Kralingen | Grant A | 668 | $0 |
| May 8, 2026 | Paul J Tufano | Grant A | 668 | $0 |
| May 8, 2026 | Necip Sayiner | Grant A | 668 | $0 |
| May 8, 2026 | Marilyn Matz | Grant A | 668 | $0 |
| May 8, 2026 | Ernest E Maddock | Grant A | 668 | $0 |
| May 8, 2026 | Mercedes Johnson | Grant A | 668 | $0 |
| May 8, 2026 | Peter Herweck | Grant A | 668 | $0 |
| May 8, 2026 | Andrew Chisholm Henry | Grant A | 668 | $0 |
| May 7, 2026 | Ryan Driscoll 10b5-1 | Sell S | 680 | $256.8K |
| Apr 16, 2026 | Mercedes Johnson | Grant A | 453 | $0 |
| Apr 8, 2026 | Regan Mills KEY 10b5-1 | Sell S | 16 | $5.5K |
| Apr 6, 2026 | Mercedes Johnson 10b5-1 | Sell S | 625 | $195.1K |
| Apr 2, 2026 | Regan Mills KEY 10b5-1 | Sell S | 252 | $73.3K |
| Apr 1, 2026 | Shannon John Poulin KEY | Other F | 1.2K | $362.8K |
| Apr 1, 2026 | Regan Mills KEY 10b5-1 | Other F | 222 | $69.3K |
| Mar 26, 2026 | Paul J Tufano | Grant A | 159 | $0 |
| Mar 26, 2026 | Peter Herweck | Grant A | 92 | $0 |
| Mar 26, 2026 | Andrew Chisholm Henry | Grant A | 75 | $0 |
| Mar 13, 2026 | Paul J Tufano | Other J | 25 | $0 |
| Mar 13, 2026 | Ernest E Maddock | Other J | 2 | $0 |
| Mar 13, 2026 | Peter Herweck | Other J | 5 | $0 |
| Mar 5, 2026 | Mercedes Johnson 10b5-1 | Sell S | 625 | $187.0K |
| Feb 25, 2026 | Regan Mills KEY | Sell S | 788 | $262.3K |
| Feb 5, 2026 | Mercedes Johnson 10b5-1 | Sell S | 625 | $166.9K |
| Feb 4, 2026 | Gregory Stephen Smith KEY | Grant A | 11.8K | $0 |
| Feb 4, 2026 | Gregory Stephen Smith KEY | Grant A | 13.4K | $0 |
| Feb 4, 2026 | Shannon John Poulin KEY | Grant A | 3.9K | $0 |
| Feb 4, 2026 | Shannon John Poulin KEY | Grant A | 4.5K | $0 |
| Feb 4, 2026 | Regan Mills KEY | Grant A | 886 | $0 |
| Feb 4, 2026 | Regan Mills KEY | Grant A | 1.0K | $0 |
| Feb 4, 2026 | Jean Pierre Hathout KEY | Grant A | 886 | $0 |
| Feb 4, 2026 | Jean Pierre Hathout KEY | Grant A | 1.0K | $0 |
| Feb 4, 2026 | Ryan Driscoll | Grant A | 1.6K | $0 |
| Feb 4, 2026 | Ryan Driscoll | Grant A | 1.8K | $0 |
| Feb 2, 2026 | Gregory Stephen Smith KEY | Other F | 6.8K | $1.7M |
| Feb 2, 2026 | Regan Mills KEY | Other F | 345 | $86.1K |
| Feb 2, 2026 | Jean Pierre Hathout KEY | Other F | 381 | $95.1K |
| Feb 2, 2026 | Ryan Driscoll | Other F | 414 | $103.3K |
| Jan 28, 2026 | Gregory Stephen Smith KEY | Other F | 486 | $121.7K |
| Jan 28, 2026 | Regan Mills KEY | Other F | 167 | $41.8K |
| Jan 28, 2026 | Ryan Driscoll | Other F | 82 | $20.5K |
| Jan 27, 2026 | Gregory Stephen Smith KEY | Other F | 30.6K | $7.3M |
| Jan 27, 2026 | Gregory Stephen Smith KEY | Grant A | 59.5K | $0 |
| Jan 27, 2026 | Regan Mills KEY | Other F | 193 | $46.1K |
| Jan 27, 2026 | Ryan Driscoll | Other F | 113 | $27.0K |
| Jan 5, 2026 | Mercedes Johnson 10b5-1 | Sell S | 625 | $132.4K |
About TER insider trading
This page tracks insider transactions for TERADYNE, INC (TER) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.