TERADYNE, INC insider trading
TER$444.53-4.51 (-1.00%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+200.6%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26
Unlock quarterly net flowKey players
- GSGregory Stephen Smith0.0694%
- PJPaul J. Tufano0.0422%
- SMSanjay Mehta0.0234%
- RJRichard John Burns0.0161%
- UKUjjwal Kumar0.0105%
- PHPeter Herweck0.0104%
- SJShannon John Poulin0.0101%
- JFJohn Francis Wood0.009%
- MMMarilyn Matz0.0089%
- RMRegan Mills0.0073%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| TER | Mercedes Johnson | Open market sell$67.3K | -2.0% | $402.90 | $67.3K | Oct 1, 2026 | Oct 2, 2026 |
| TER | Marilyn Matz | Open market sell$140K | -2.8% | $351.11 | $140K | Sep 17, 2026 | Sep 18, 2026 |
| TER | Gregory Stephen Smith | Open market sell$1.35M | -3.6% | $337.83 | $1.35M | Sep 15, 2026 | Sep 16, 2026 |
| TER | Marilyn Matz | Open market sell$270K | -5.3% | $337.83 | $270K | Sep 15, 2026 | Sep 16, 2026 |
| TER | Mercedes Johnson | Open market sell$57K | -2.0% | $341.30 | $57K | Sep 1, 2026 | Sep 2, 2026 |
| TER | Gregory Stephen Smith | Open market sell$1.7M | -3.4% | $425.00 | $1.7M | Aug 17, 2026 | Aug 18, 2026 |
| TER | Marilyn Matz | Open market sell$510K | -7.4% | $425.00 | $510K | Aug 17, 2026 | Aug 18, 2026 |
| TER | Mercedes Johnson | Open market sell$59.5K | -1.9% | $358.15 | $59.5K | Aug 3, 2026 | Aug 4, 2026 |
| TER | Gregory Stephen Smith | Open market sell$1.43M | -3.3% | $356.31 | $1.43M | Jul 15, 2026 | Jul 16, 2026 |
| TER | Marilyn Matz | Open market sell$428K | -6.9% | $356.31 | $428K | Jul 15, 2026 | Jul 16, 2026 |
| TER | Mercedes Johnson | Open market sell$76.8K | -1.9% | $460.00 | $76.8K | Jul 1, 2026 | Jul 2, 2026 |
| TER | Marilyn Matz | Open market sell$508K | -6.4% | $423.03 | $508K | Jun 15, 2026 | Jun 16, 2026 |
| TER | Gregory Stephen Smith | Open market sell$1.69M | -3.2% | $423.03 | $1.69M | Jun 15, 2026 | Jun 16, 2026 |
| TER | Mercedes Johnson | Open market sell$61.7K | -1.9% | $369.74 | $61.7K | Jun 2, 2026 | Jun 3, 2026 |
| TER | Shannon John Poulin | Open market sell$233K | -4.0% | $355.00 | $233K | May 22, 2026 | May 26, 2026 |
| TER | Marilyn Matz | Open market sell$140K | -2.1% | $350.00 | $140K | May 21, 2026 | May 26, 2026 |
| TER | Marilyn Matz | Open market sell$271K | -4.0% | $338.98 | $271K | May 15, 2026 | May 19, 2026 |
| TER | Ryan Driscoll | Open market sell$257K | -8.2% | $377.60 | $257K | May 7, 2026 | May 11, 2026 |
| TER | Regan Mills | Open market sell$5.47K | -0.1% | $342.17 | $5.47K | Apr 8, 2026 | Apr 9, 2026 |
| TER | Mercedes Johnson | Open market sell$195K | -7.1% | $312.20 | $195K | Apr 6, 2026 | Apr 7, 2026 |
| TER | Regan Mills | Open market sell$73.3K | -2.2% | $290.88 | $73.3K | Apr 2, 2026 | Apr 3, 2026 |
| TER | Mercedes Johnson | Open market sell$187K | -6.6% | $299.20 | $187K | Mar 5, 2026 | Mar 6, 2026 |
| TER | Regan Mills | Open market sell$262K | -6.2% | $332.87 | $262K | Feb 25, 2026 | Feb 27, 2026 |
| TER | Mercedes Johnson | Open market sell$167K | -6.2% | $266.98 | $167K | Feb 5, 2026 | Feb 6, 2026 |
| TER | Mercedes Johnson | Open market sell$132K | -5.8% | $211.85 | $132K | Jan 5, 2026 | Jan 6, 2026 |
| TER | Gregory Stephen Smith | Open market sell$223K | -1.2% | $201.31 | $223K | Dec 12, 2025 | Dec 15, 2025 |
| TER | Mercedes Johnson | Open market sell$125K | -5.5% | $200.00 | $125K | Dec 5, 2025 | Dec 8, 2025 |
| TER | Gregory Stephen Smith | Open market sell$200K | -1.2% | $180.20 | $200K | Nov 12, 2025 | Nov 14, 2025 |
| TER | Mercedes Johnson | Open market sell$111K | -5.2% | $177.05 | $111K | Nov 5, 2025 | Nov 7, 2025 |
| TER | Gregory Stephen Smith | Open market sell$161K | -1.2% | $145.24 | $161K | Oct 10, 2025 | Oct 15, 2025 |