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- Mercedes Johnson - DirectorOpen-market sale$67K
Marilyn Matz - Director
About TERADYNE, INC (TER)
The SEC lists TERADYNE, INC under CIK 0000097210, in instruments for meas and testing of electricity and elec signals. It is grouped with Information Technology companies on this site.
TER Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 8 | 10,900 | $4.16M |
| Grant or award | 3 | 282 | |
| Other acquisition / disposition | 3 | 25 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
TER insider transactions (Form 4)
3999 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mercedes Johnson - Director | Open-market sale | Common Stock | 167 | $402.90 | $67K | |
 Peter Herweck - Director | Grant or award | Common Stock | 77 footnote F1 | $0.00 footnote F1 | - | |
| Peter Herweck - Director | Other | Common Stock | 4 footnote F2 | $0.00 footnote F2 | - | |
| ||||||
 Paul J. Tufano - Director | Grant or award | Common Stock | 141 footnote F1 | $0.00 footnote F1 | - | |
| Paul J. Tufano - Director | Other | Common Stock | 19 footnote F2 | $0.00 footnote F2 | - | |
| ||||||
 Ernest E. Maddock - Director | Other | Common Stock | 2 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Andrew Chisholm Henry - Director | Grant or award | Common Stock | 64 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Marilyn Matz - Director | Open-market sale | Common Stock | 400 | $351.11 | $140K | |
 Gregory Stephen Smith - Officer | Open-market sale | Common Stock | 4,000 | $337.83 | $1.35M | |
| Marilyn Matz - Director | Open-market sale | Common Stock | 800 | $337.83 | $270K | |
| Mercedes Johnson - Director | Open-market sale | Common Stock | 167 | $341.30 | $57K | |
| Gregory Stephen Smith - Officer | Open-market sale | Common Stock | 4,000 | $425.00 | $1.70M | |
| Marilyn Matz - Director | Open-market sale | Common Stock | 1,200 | $425.00 | $510K | |
| Mercedes Johnson - Director | Open-market sale | Common Stock | 166 | $358.15 | $59K | |
| Gregory Stephen Smith - Officer | Open-market sale | Common Stock | 4,000 | $356.31 | $1.43M | |
| Marilyn Matz - Director | Open-market sale | Common Stock | 1,200 | $356.31 | $428K | |
| Mercedes Johnson - Director | Open-market sale | Common Stock | 167 | $460.00 | $77K | |
| Paul J. Tufano - Director | Grant or award | Common Stock | 116 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Andrew Chisholm Henry - Director | Grant or award | Common Stock | 52 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Peter Herweck - Director | Grant or award | Common Stock | 63 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Marilyn Matz - Director | Open-market sale | Common Stock | 1,200 | $423.03 | $508K | |
| Gregory Stephen Smith - Officer | Open-market sale | Common Stock | 4,000 | $423.03 | $1.69M | |
| Ernest E. Maddock - Director | Other | Common Stock | 2 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Peter Herweck - Director | Other | Common Stock | 4 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Paul J. Tufano - Director | Other | Common Stock | 19 footnote F1 | $0.00 footnote F1 | - | |
| ||||||
| Jean Pierre Hathout - Officer | Tax withholding / forfeiture | Common Stock | 267 footnote F1 | $369.47 | $99K | |
| Jean Pierre Hathout - Officer | Tax withholding / forfeiture | Common Stock | 174 footnote F2 | $392.62 | $68K | |
| ||||||
| Mercedes Johnson - Director | Open-market sale | Common Stock | 167 | $369.74 | $62K | |
| Shannon John Poulin - Officer | Open-market sale | Common Stock | 1,008 | $345.37 | $348K | |
| Shannon John Poulin - Officer | Option exercise | Common Stock | 2,843 | $82.61 | $235K | |
| Shannon John Poulin - Officer | Tax withholding / forfeiture | Common Stock | 1,531 footnote F2 | $345.98 | $530K | |
| Shannon John Poulin - Officer | Open-market sale | Common Stock | 656 | $355.00 | $233K | |
| Shannon John Poulin - Officer | Option exercise | Stock Option (Right to Buy) | 2,843 | $0.00 | - | |
| ||||||
| Marilyn Matz - Director | Open-market sale | Common Stock | 400 | $350.00 | $140K | |
| Gregory Stephen Smith - Officer | Option exercise | Common Stock | 4,597 | $72.10 | $331K | |
| Gregory Stephen Smith - Officer | Open-market sale | Common Stock | 8,597 | $338.98 | $2.91M | |
| Gregory Stephen Smith - Officer | Option exercise | Stock Option (Right to Buy) | 4,597 | $0.00 | - | |
| Marilyn Matz - Director | Open-market sale | Common Stock | 800 | $338.98 | $271K | |
| Peter Herweck - Director | Grant or award | Common Stock | 668 footnote F1 | $0.00 | - | |
| ||||||
Item 1.01, 2.03, 9.01
Item 2.02, 9.01
Item 5.07
Item 2.02, 9.01
Recent TER Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| JOHNSON MERCEDES | Director | 167 | $67K | View on EDGAR | |
| MATZ MARILYN | Director | 400 |
Stock trades in TER disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Lisa C. McClainRepublican, MI-09 | Sale |
TER insider trading FAQ
What is the latest insider trade for TER?
TERADYNE, INC (TER) had 12 insider filings in the last 90 days, with the most recent on 2026-10-02. The full record for TER runs to 99 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying TER stock?
No insider purchases of TER were filed in the last 90 days.
How many insiders are selling TER stock?
8 insider sales of TER were filed in the last 90 days, totaling $4.16M.
Where can I see TER SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects TER Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Mercedes Johnson view on EDGAR
- - Peter Herweck view on EDGAR
- - Paul J. Tufano view on EDGAR
- - Ernest E. Maddock view on EDGAR
- - Andrew Chisholm Henry view on EDGAR
- - Marilyn Matz view on EDGAR
- - Gregory Stephen Smith view on EDGAR
- - Marilyn Matz view on EDGAR
- - Mercedes Johnson view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where TER's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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