Company profile
Teradyne, Inc Insider Trading
TEREvery SEC Form 4 insider trading filing for Teradyne, Inc (TER) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Instruments For Meas & Testing of Electricity & Elec Signals
- CIK
- 0000097210
- Filings
- 218
- Insiders
- 23
- Last filing
- 2026-09-17
Activity summary
No discretionary insider buying or selling in the last 30 days. The 4 transactions filed were made under a 10b5-1 plan, scheduled in advance rather than decided on the day.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Teradyne, Inc insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $10.3M.
90 day insight
Over the last 90 days, Teradyne, Inc insiders filed 10 Form 4 transactions, none of which were open-market purchases or sales.
- Most active insider: Marilyn Matz with 4 transactions totaling $1.3M.
- Largest single sale: $1.7M by Gregory Stephen Smith on Aug 17, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 17, 2026 | Marilyn Matz | TER | Sale10b5 | 400 | $351.11 | $140K |
| Sep 15, 2026 | Marilyn Matz | TER | Sale10b5 | 800 | $337.83 | $270K |
| Sep 15, 2026 | Gregory Stephen Smith | TER | Sale10b5 | 4,000 | $337.83 | $1.35M |
| Sep 1, 2026 | Mercedes Johnson | TER | Sale10b5 | 167 | $341.30 | $57K |
| Aug 17, 2026 | Marilyn Matz | TER | Sale10b5 | 1,200 | $425.00 | $510K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
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-H "X-Api-Key: $KEY"Top insiders
By open-market value traded.
Institutional Ownership
Top 13F-HR holders of Teradyne, Inc as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →