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Buy TER
Teradyne Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -44.46. In total, the insiders bought 146.92K and sold 75.89K TER shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-44.46 |
| ● Buy | 146.92K shares |
| ● Sell | 75.89K shares |
|
51% Buy Activity
Moderate Positive Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Mar 26, 2026 Buy |
Herweck Peter Director |
92 Value: $27.4K |
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|
Mar 26, 2026 Buy |
Tufano Paul J Director |
159 Value: $47.3K |
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|
Mar 13, 2026 Buy |
Tufano Paul J Director |
25 Value: $7K |
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|
Mar 13, 2026 Buy |
Maddock Ernest E Director |
2 Value: $573 |
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|
Mar 13, 2026 Buy |
Herweck Peter Director |
5 Value: $1K |
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|
Mar 05, 2026 Sell |
Johnson Mercedes Director |
625 Value: $187.0K |
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|
Feb 25, 2026 Sell |
Mills Regan President, Product Test |
788 Value: $262.3K |
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|
Feb 05, 2026 Sell |
Johnson Mercedes Director |
625 Value: $166.9K |
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|
Feb 04, 2026 Buy |
Hathout Jean Pierre President, Teradyne Robotics |
1 004 Value: $270.1K |
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|
Feb 04, 2026 Buy |
Driscoll Ryan Vp, General Counsel, Secretary |
1 575 Value: $423.8K |
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Feb 04, 2026 Buy |
Poulin Shannon John President, Semiconductor Test |
3 937 Value: $1.06M |
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|
Feb 04, 2026 Buy |
Smith Gregory Stephen President And CEO |
13 380 Value: $3.60M |
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Feb 04, 2026 Buy |
Smith Gregory Stephen President And CEO |
11 810 Value: $3.18M |
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|
Feb 04, 2026 Buy |
Poulin Shannon John President, Semiconductor Test |
4 460 Value: $1.20M |
||
|
Feb 04, 2026 Buy |
Driscoll Ryan Vp, General Counsel, Secretary |
1 784 Value: $480.0K |
||
|
Feb 04, 2026 Buy |
Mills Regan President, Product Test |
1 004 Value: $270.1K |
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Feb 04, 2026 Buy |
Mills Regan President, Product Test |
886 Value: $238.4K |
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|
Feb 04, 2026 Buy |
Hathout Jean Pierre President, Teradyne Robotics |
886 Value: $238.4K |
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|
Feb 02, 2026 Sell |
Smith Gregory Stephen President And CEO |
6 763 Value: $1.69M |
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Feb 02, 2026 Sell |
Hathout Jean Pierre President, Teradyne Robotics |
381 Value: $95.1K |
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|
Feb 02, 2026 Sell |
Mills Regan President, Product Test |
345 Value: $86.1K |
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|
Feb 02, 2026 Sell |
Driscoll Ryan Vp, General Counsel, Secretary |
414 Value: $103.3K |
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|
Jan 28, 2026 Sell |
Smith Gregory Stephen President And CEO |
486 Value: $121.7K |
||
|
Jan 28, 2026 Sell |
Mills Regan President, Product Test |
167 Value: $41.8K |
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|
Jan 28, 2026 Sell |
Driscoll Ryan Vp, General Counsel, Secretary |
82 Value: $20.5K |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
