TERADYNE, INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| TUFANO PAUL J | — | Award / Grant | 256 | — | — | 64,825 | Dec 17, 2025 |
| Herweck Peter | — | Other | 7 | — | — | 15,369 | Dec 17, 2025 |
| MADDOCK ERNEST E | — | Other | 2 | — | — | 9,595 | Dec 17, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 1,108 | $201.31 | $223,051 | 93,409 | Dec 12, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $200.00 | $125,000 | 8,863 | Dec 5, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 1,108 | $180.20 | $199,662 | 94,517 | Nov 12, 2025 |
| Smith Gregory Stephen | President and CEO | Tax Withholding | 1,224 | $177.05 | $216,709 | 95,625 | Nov 5, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $177.05 | $110,656 | 9,488 | Nov 5, 2025 |
| Turner Michelle L. | Chief Financial Officer | Award / Grant | 11,144 | — | — | 11,260 | Nov 3, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 1,108 | $145.24 | $160,926 | 94,777 | Oct 10, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $147.90 | $92,438 | 10,113 | Oct 6, 2025 |
| MADDOCK ERNEST E | — | Other | 3 | — | — | 9,593 | Sep 29, 2025 |
| TUFANO PAUL J | — | Other | 49 | — | — | 64,569 | Sep 29, 2025 |
| Herweck Peter | — | Other | 9 | — | — | 15,214 | Sep 29, 2025 |
| TUFANO PAUL J | — | Award / Grant | 357 | — | — | 64,520 | Sep 25, 2025 |
| Herweck Peter | — | Award / Grant | 206 | — | — | 15,205 | Sep 25, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 554 | $126.39 | $70,020 | 95,885 | Sep 22, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 554 | $115.00 | $63,710 | 96,439 | Sep 12, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $120.06 | $75,038 | 10,738 | Sep 5, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 554 | $106.00 | $58,724 | 96,993 | Aug 12, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $106.00 | $66,250 | 11,363 | Aug 5, 2025 |
| Kumar Ujjwal | President, Teradyne Robotics | Tax Withholding | 657 | $104.16 | $68,433 | 16,369 | Aug 1, 2025 |
| JOHNSON MERCEDES | — | Sale | 1,875 | $105.73 | $198,244 | 11,988 | Jul 30, 2025 |
| Smith Gregory Stephen | President and CEO | Sale | 554 | $105.73 | $58,574 | 97,547 | Jul 30, 2025 |
| Sayiner Necip | — | Award / Grant | 2,132 | — | — | 2,132 | Jul 1, 2025 |
| Henry Andrew Chisholm | — | Award / Grant | 2,132 | — | — | 2,132 | Jul 1, 2025 |
| TUFANO PAUL J | — | Award / Grant | 521 | — | — | 64,163 | Jun 26, 2025 |
| Herweck Peter | — | Award / Grant | 302 | — | — | 14,999 | Jun 26, 2025 |
| Herweck Peter | — | Other | 15 | — | — | 14,697 | Jun 13, 2025 |
| MADDOCK ERNEST E | — | Other | 6 | — | — | 9,590 | Jun 13, 2025 |
| TUFANO PAUL J | — | Other | 79 | — | — | 63,642 | Jun 13, 2025 |
| van Kralingen Bridget A | — | Award / Grant | 2,971 | — | — | 5,556 | May 9, 2025 |
| Herweck Peter | — | Award / Grant | 2,971 | — | — | 14,682 | May 9, 2025 |
| MADDOCK ERNEST E | — | Award / Grant | 2,971 | — | — | 9,584 | May 9, 2025 |
| TUFANO PAUL J | — | Award / Grant | 2,971 | — | — | 63,563 | May 9, 2025 |
| JOHNSON MERCEDES | — | Award / Grant | 2,971 | — | — | 15,739 | May 9, 2025 |
| MATZ MARILYN | — | Award / Grant | 2,971 | — | — | 19,173 | May 9, 2025 |
| Herweck Peter | — | Award / Grant | 320 | — | — | 11,711 | Mar 27, 2025 |
| TUFANO PAUL J | — | Award / Grant | 554 | — | — | 60,592 | Mar 27, 2025 |
| MADDOCK ERNEST E | — | Other | 3 | — | — | 6,613 | Mar 14, 2025 |
| Herweck Peter | — | Other | 11 | — | — | 11,391 | Mar 14, 2025 |
| TUFANO PAUL J | — | Other | 73 | — | — | 60,038 | Mar 14, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $110.96 | $69,350 | 12,768 | Mar 3, 2025 |
| Mehta Sanjay | VP and Chief Financial Officer | Sale | 1,384 | $111.49 | $154,302 | 36,576 | Feb 4, 2025 |
| Burns Richard John | President, Semiconductor Test | Sale | 445 | $111.49 | $49,613 | 25,191 | Feb 4, 2025 |
| Driscoll Ryan | VP, General Counsel, Secretary | Sale | 216 | $111.49 | $24,082 | 7,007 | Feb 4, 2025 |
| Mehta Sanjay | VP and Chief Financial Officer | Award / Grant | 8,810 | — | — | 39,256 | Feb 3, 2025 |
| Lukez John | President, LitePoint Corp. | Award / Grant | 1,296 | — | — | 4,279 | Feb 3, 2025 |
| JOHNSON MERCEDES | — | Sale | 625 | $112.58 | $70,363 | 13,393 | Feb 3, 2025 |
| Wood John Francis | President, System Test Group | Award / Grant | 4,319 | — | — | 14,328 | Feb 3, 2025 |