TERADYNE, INC (TER) insider trading
No open-market insider purchases of TERADYNE, INC are on record; 7 open-market sales are.
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Insider purchases
No open-market purchases on record.
Insider sales
7 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Oct 22 Form 4 (opens sec.gov) |
Marilyn MatzDirector · planned (10b5-1) | $140k 400 at $350.00 · 3% of holdings |
| Oct 19 Form 4 (opens sec.gov) |
Gregory Stephen SmithPresident · planned (10b5-1) | $1.4M 4,000 at $341.28 · 4% of holdings |
| Oct 19 Form 4 (opens sec.gov) |
Marilyn MatzDirector · planned (10b5-1) | $273k 800 at $341.28 · 6% of holdings |
| Oct 2 Form 4 (opens sec.gov) |
Mercedes JohnsonDirector · planned (10b5-1) | $67k 167 at $402.90 · 2% of holdings |
| Sep 18 Form 4 (opens sec.gov) |
Marilyn MatzDirector · planned (10b5-1) | $140k 400 at $351.11 · 3% of holdings |
| Sep 16 Form 4 (opens sec.gov) |
Gregory Stephen SmithPresident · planned (10b5-1) | $1.4M 4,000 at $337.83 · 4% of holdings |
| Sep 16 Form 4 (opens sec.gov) |
Marilyn MatzDirector · planned (10b5-1) | $270k 800 at $337.83 · 5% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
TER trades reported by members of Congress
| Reported | Member | Trade | Amount |
|---|---|---|---|
| Aug 5 |  Tommy TubervilleR-AL · Senate824 days after the trade | Sale | $1K–$15K |
| Jul 21 |  Alan ArmstrongR-OK · Senate116 days after the trade | Buy | $1K–$15K |
Members of Congress report trades up to 45 days later, in dollar ranges. Every member's trades.
Planned insider sales of TER (Form 144)
| Filed | Insider | To sell |
|---|---|---|
| Oct 21 Form 144 | MATZ MARILYNDirector · 10b5-1 plan | $140k 400 shares from Oct 21 |
| Oct 15 Form 144 | Smith Gregory StephenOfficer, Director · 10b5-1 plan | $1.4M 4,000 shares from Oct 15 |
| Oct 15 Form 144 | MATZ MARILYNDirector · 10b5-1 plan | $273k 800 shares from Oct 15 |
A Form 144 is filed before an insider sells restricted or control shares; the Form 4 reports the sale once made.
Questions
Are insiders buying TER stock?
Not recently: no open-market purchases were filed in the last 90 days.
Who bought TER stock most recently?
No insider has bought TER on the open market in the filings on record.
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Data as of Oct 22, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer