Teradyne, Inc (TER) insider trading.
In Q3 2026, insiders at Teradyne, Inc reported 16 non-derivative transactions on 14 Forms 3, 4 and 5: 0 open-market purchases and 10 sales worth $6.0M.
- Transactions
- 16
- Purchases (P)
- 0
- Sales (S)
- 10
- Net shares, P minus S
- -16,100
- Insiders
- 7
- Last filed
- 2026-09-28
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Matz Marilyn | Director | 4 | 0 | 4 |
| Smith Gregory Stephen | Director, Officer · President and CEO | 3 | 0 | 3 |
| Johnson Mercedes | Director | 3 | 0 | 3 |
| Tufano Paul J | Director | 2 | 0 | 0 |
| Herweck Peter | Director | 2 | 0 | 0 |
| Maddock Ernest E | Director | 1 | 0 | 0 |
| Henry Andrew Chisholm | Director | 1 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-25 | Maddock Ernest E | J (A) | 2 | $0 | 10,269 | Form 4 |
| 2026-09-25 | Tufano Paul J | J (A) | 19 | $0 | 66,008 | Form 4 |
| 2026-09-25 | Herweck Peter | J (A) | 4 | $0 | 16,282 | Form 4 |
| 2026-09-24 | Henry Andrew Chisholm | A (A) | 64 | $0 | 2,991 | Form 4 |
| 2026-09-24 | Tufano Paul J | A (A) | 141 | $0 | 65,989 | Form 4 |
| 2026-09-24 | Herweck Peter | A (A) | 77 | $0 | 16,278 | Form 4 |
| 2026-09-17 | Matz Marilyn | S (D) | 400 | $351.11 | 13,841 | Form 4 |
| 2026-09-15 | Matz Marilyn | S (D) | 800 | $337.83 | 14,241 | Form 4 |
| 2026-09-15 | Smith Gregory Stephen | S (D) | 4,000 | $337.83 | 108,495 | Form 4 |
| 2026-09-01 | Johnson Mercedes | S (D) | 167 | $341.3 | 6,364 | Form 4 |
| 2026-08-17 | Matz Marilyn | S (D) | 1,200 | $425 | 15,041 | Form 4 |
| 2026-08-17 | Smith Gregory Stephen | S (D) | 4,000 | $425 | 112,495 | Form 4 |
| 2026-08-03 | Johnson Mercedes | S (D) | 166 | $358.15 | 6,531 | Form 4 |
| 2026-07-15 | Matz Marilyn | S (D) | 1,200 | $356.31 | 16,241 | Form 4 |
| 2026-07-15 | Smith Gregory Stephen | S (D) | 4,000 | $356.31 | 116,495 | Form 4 |
| 2026-07-01 | Johnson Mercedes | S (D) | 167 | $460 | 6,697 | Form 4 |
Transaction codes in this quarter
Get TER insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=97210&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · TER company page · Teradyne, Inc on SEC.gov
Questions
Are insiders buying or selling Teradyne, Inc (TER)?
In Q3 2026, insiders at Teradyne, Inc reported 16 non-derivative transactions on 14 Forms 3, 4 and 5: 0 open-market purchases and 10 sales worth $6.0M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Teradyne, Inc insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/ter.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.