Teradyne's three largest insider shareholders as of June 12, 2026 are Mark E Jagiela (Ceo, 208.60K shares), Gregory Stephen Smith (President And Ceo, 128.47K shares), Paul J Tufano (Director, 65.05K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Edwin J Gillis | - | 43,921 | 0 | 21 Mar, 2023 |
| Michael A Bradley | Ceo | 24,815 | 0 | 17 Dec, 2021 |
| Paul J Tufano | - | 65,045 | 0 | 30 Mar, 2026 |
| Timothy E Guertin | - | 62,729 | 0 | 19 Mar, 2024 |
| Mercedes Johnson | - | 6,363 | 0 | 07 Apr, 2026 |
| Ernest E Maddock | - | 9,597 | 0 | 17 Mar, 2026 |
| Mark E Jagiela | Ceo | 208,600 | 0 | 31 Jan, 2023 |
| Necip Sayiner | - | 2,132 | 0 | 03 Jul, 2025 |
| Richard John Burns | President, Semiconductor Test | 25,191 | 0 | 05 Feb, 2025 |
| Charles Jeffrey Gray | Vp, General Counsel, Secretary | 24,643 | 0 | 31 Jan, 2024 |
| Ryan Driscoll | Vp, General Counsel, Secretary | 8,345 | 0 | 06 Feb, 2026 |
| Kralingen Bridget A Van | - | 5,556 | 0 | 13 May, 2025 |
| Walter G. Vahey | Exec. Vp, Corp. Development | 41,570 | 0 | 01 Feb, 2022 |
| Brad Robbins | President, Litepoint Corp. | 52,772 | 0 | 31 Jan, 2024 |
| Marilyn Matz | - | 19,173 | 0 | 13 May, 2025 |
| Gregory Stephen Smith | President And Ceo | 128,470 | 0 | 06 Feb, 2026 |
| Sanjay Mehta | Vp And Chief Financial Officer | 36,576 | 0 | 05 Feb, 2025 |
| Peter Herweck | - | 15,466 | 0 | 30 Mar, 2026 |
| Michelle L. Turner | Chief Financial Officer | 11,260 | 0 | 05 Nov, 2025 |
| Ujjwal Kumar | President, Teradyne Robotics | 16,369 | 0 | 05 Aug, 2025 |
| John Francis Wood | President, System Test Group | 14,137 | 0 | 04 Feb, 2025 |
| John Lukez | President, Litepoint Corp. | 4,185 | 0 | 04 Feb, 2025 |
| Regan Mills | President, Product Test | 11,399 | 0 | 09 Apr, 2026 |
| Shannon John Poulin | President, Semiconductor Test | 16,074 | 0 | 03 Apr, 2026 |
| Andrew Chisholm Henry | - | 2,207 | 0 | 30 Mar, 2026 |
| Jean Pierre Hathout | President, Teradyne Robotics | 10,174 | 0 | 06 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Apr, 2026 | Regan Mills | Common Stock | D | 16 | $342.17 | 11,399 | D | S |
| 06 Apr, 2026 | Mercedes Johnson | Common Stock | D | 625 | $312.20 | 6,363 | D | S |
| 01 Apr, 2026 | Regan Mills | Common Stock | D | 222 | $312.20 | 11,667 | D | F |
| 01 Apr, 2026 | Shannon John Poulin | Common Stock | D | 1,162 | $312.20 | 16,074 | D | F |
| 02 Apr, 2026 | Regan Mills | Common Stock | D | 252 | $290.88 | 11,415 | D | S |
| 26 Mar, 2026 | Paul J Tufano | Common Stock | A | 159 | $0.00 | 65,045 | D | A |
| 26 Mar, 2026 | Peter Herweck | Common Stock | A | 92 | $0.00 | 15,466 | D | A |
| 26 Mar, 2026 | Paul J Tufano | Common Stock | A | 159 | $0.00 | 65,045 | D | A |
| 26 Mar, 2026 | Andrew Chisholm Henry | Common Stock | A | 75 | $0.00 | 2,207 | D | A |
| 26 Mar, 2026 | Paul J Tufano | Common Stock | A | 159 | $0.00 | 65,045 | D | A |
| 13 Mar, 2026 | Peter Herweck | Common Stock | A | 5 | $0.00 | 15,374 | D | J |
| 13 Mar, 2026 | Paul J Tufano | Common Stock | A | 25 | $0.00 | 64,886 | D | J |
| 13 Mar, 2026 | Paul J Tufano | Common Stock | A | 25 | $0.00 | 64,886 | D | J |
| 13 Mar, 2026 | Paul J Tufano | Common Stock | A | 25 | $0.00 | 64,886 | D | J |
| 13 Mar, 2026 | Ernest E Maddock | Common Stock | A | 2 | $0.00 | 9,597 | D | J |
| 05 Mar, 2026 | Mercedes Johnson | Common Stock | D | 625 | $299.20 | 6,988 | D | S |
| 25 Feb, 2026 | Regan Mills | Common Stock | D | 788 | $332.87 | 11,889 | D | S |
| 04 Feb, 2026 | Ryan Driscoll | Common Stock | A | 1,784 | $0.00 | 8,345 | D | A |
| 05 Feb, 2026 | Mercedes Johnson | Common Stock | D | 625 | $266.98 | 7,613 | D | S |
| 04 Feb, 2026 | Gregory Stephen Smith | Common Stock | A | 13,380 | $0.00 | 128,470 | D | A |