TER insider trading — Teradyne, Inc
No open-market insider purchases or sales were filed for Teradyne, Inc (TER) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent TER insider transactions
Every Form 4 filed by Teradyne, Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Johnson Mercedes | Director | S · Sale · 10b5-1 | Direct | 167 | $402.90 | $67K | Form 4 |
| Sep 25, 2026 | Herweck Peter | Director | J · Other | Direct | 4 | — | — | Form 4 |
| Sep 24, 2026 | Herweck Peter | Director | A · Grant/award | Direct | 77 | — | — | Form 4 |
| Sep 25, 2026 | Tufano Paul J | Director | J · Other | Direct | 19 | — | — | Form 4 |
| Sep 24, 2026 | Tufano Paul J | Director | A · Grant/award | Direct | 141 | — | — | Form 4 |
| Sep 25, 2026 | Maddock Ernest E | Director | J · Other | Direct | 2 | — | — | Form 4 |
| Sep 24, 2026 | Henry Andrew Chisholm | Director | A · Grant/award | Direct | 64 | — | — | Form 4 |
| Sep 17, 2026 | Matz Marilyn | Director | S · Sale · 10b5-1 | Direct | 400 | $351.11 | $140K | Form 4 |
| Sep 15, 2026 | Smith Gregory Stephen | President and CEO | S · Sale · 10b5-1 | Direct | 4,000 | $337.83 | $1.35M | Form 4 |
| Sep 15, 2026 | Matz Marilyn | Director | S · Sale · 10b5-1 | Direct | 800 | $337.83 | $270K | Form 4 |
| Sep 1, 2026 | Johnson Mercedes | Director | S · Sale · 10b5-1 | Direct | 167 | $341.30 | $57K | Form 4 |
| Aug 17, 2026 | Smith Gregory Stephen | President and CEO | S · Sale · 10b5-1 | Direct | 4,000 | $425.00 | $1.70M | Form 4 |
| Aug 17, 2026 | Matz Marilyn | Director | S · Sale · 10b5-1 | Direct | 1,200 | $425.00 | $510K | Form 4 |
| Aug 3, 2026 | Johnson Mercedes | Director | S · Sale · 10b5-1 | Direct | 166 | $358.15 | $59K | Form 4 |
TER insider trading FAQ
Are insiders buying TER stock?
Not on the open market. In the last 90 days, Teradyne, Inc insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading TER?
No insider bought or sold on the open market in the last 90 days.
Where does TER insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.