SEC Form 4 · Updated Daily
TER
— TERADYNE, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| CHAMILLARD GEORGE W | Director | 256,226 | 2006-12-31 | M |
| JAGIELA MARK E | Officer | 208,600 | 2023-01-30 | F |
| BAGLEY JAMES W | Director | 136,127 | 2013-05-22 | M |
| Smith Gregory Stephen | Director · Officer | 104,495.408 | 2026-10-15 | S |
| ROGAS EDWARD JR | Director | 92,196 | 2005-12-31 | A |
| CARNESALE ALBERT | Director | 68,747 | 2013-05-22 | M |
| WOLPERT PATRICIA S | Director | 67,741 | 2010-05-28 | M |
| TUFANO PAUL J | Director | 66,008 | 2026-09-25 | J |
| GUERTIN TIMOTHY E | Director | 62,729 | 2024-03-15 | J |
| CASEY JOHN M | Officer | 54,779 | 2005-12-31 | A |
| Beecher Gregory R | Director | 53,941 | 2019-04-25 | M |
| Robbins Brad | Officer | 52,772.34 | 2024-01-29 | F |
| GILLIS EDWIN J | Director | 43,921 | 2023-03-17 | J |
| HOTCHKISS JEFFREY R | Officer | 43,872 | 2012-03-16 | M |
| Vahey Walter G. | Officer | 41,754 | 2022-01-28 | A |
| Mehta Sanjay | Officer | 36,576.23 | 2025-02-04 | S |
| CASAL EILEEN | Officer | 33,006 | 2009-01-26 | M |
| CHRISTMAN DANIEL W | Director | 30,163 | 2017-05-09 | M |
| Burns Richard John | Director | 25,190.75 | 2025-02-04 | S |
| BRADLEY MICHAEL A | Director | 24,815 | 2021-12-16 | G |
| Gray Charles Jeffrey | Officer | 24,643 | 2024-01-29 | F |
| O REILLY VINCENT M | Director | 24,192 | 2010-05-28 | M |
| Poulin Shannon John | Officer | 17,908.578 | 2026-05-21 | M |
| Kumar Ujjwal | Officer | 16,369 | 2025-08-01 | F |
| Herweck Peter | Director | 16,282 | 2026-09-25 | J |
| Wood John Francis | Officer | 14,328.13 | 2025-01-31 | A |
| MATZ MARILYN | Director | 12,640.675 | 2026-10-21 | S |
| Mills Regan | Officer | 11,399.345 | 2026-04-08 | S |
| Turner Michelle L. | Officer | 11,260 | 2025-11-03 | A |
| Tempesta Daniel David | Officer | 10,728 | 2008-01-26 | M |
| MADDOCK ERNEST E | Director | 10,269 | 2026-09-25 | J |
| Hathout Jean Pierre | Officer | 9,907 | 2026-06-01 | F |
| Driscoll Ryan | Officer | 7,665.305 | 2026-05-07 | S |
| Tamer Ford | Director · Officer | 7,235 | 2024-05-09 | A |
| van Kralingen Bridget A | Director | 6,224 | 2026-05-08 | A |
| JOHNSON MERCEDES | Director | 6,197 | 2026-10-01 | S |
| McAndrews Amy R | Officer | 4,888 | 2006-12-31 | A |
| Lukez John | Officer | 4,279 | 2025-01-31 | A |
| VALLEE ROY | Director | 3,073 | 2020-11-11 | S |
| Henry Andrew Chisholm | Director | 2,991 | 2026-09-24 | A |
| Sayiner Necip | Director · Officer | 2,800 | 2026-05-08 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-21 | MATZ MARILYN | Open-market sale | 400 | $350.00 | 12,640.675 |
| 2026-10-15 | MATZ MARILYN | Open-market sale | 800 | $341.28 | 13,040.675 |
| 2026-10-15 | Smith Gregory Stephen | Open-market sale | 4,000 | $341.28 | 104,495.408 |
| 2026-10-01 | JOHNSON MERCEDES | Open-market sale | 167 | $402.90 | 6,197 |
| 2026-09-25 | MADDOCK ERNEST E | J | 2 | $0.00 | 10,269 |
| 2026-09-25 | TUFANO PAUL J | J | 19 | $0.00 | 66,008 |
| 2026-09-25 | Herweck Peter | J | 4 | $0.00 | 16,282 |
| 2026-09-24 | Henry Andrew Chisholm | Grant / award | 64 | $0.00 | 2,991 |
| 2026-09-24 | TUFANO PAUL J | Grant / award | 141 | $0.00 | 65,989 |
| 2026-09-24 | Herweck Peter | Grant / award | 77 | $0.00 | 16,278 |
| 2026-09-17 | MATZ MARILYN | Open-market sale | 400 | $351.11 | 13,840.675 |
| 2026-09-15 | MATZ MARILYN | Open-market sale | 800 | $337.83 | 14,240.675 |
| 2026-09-15 | Smith Gregory Stephen | Open-market sale | 4,000 | $337.83 | 108,495.408 |
| 2026-09-01 | JOHNSON MERCEDES | Open-market sale | 167 | $341.30 | 6,364 |
| 2026-08-17 | MATZ MARILYN | Open-market sale | 1,200 | $425.00 | 15,040.675 |
| 2026-08-17 | Smith Gregory Stephen | Open-market sale | 4,000 | $425.00 | 112,495.408 |
| 2026-08-03 | JOHNSON MERCEDES | Open-market sale | 166 | $358.15 | 6,531 |
| 2026-07-15 | MATZ MARILYN | Open-market sale | 1,200 | $356.31 | 16,240.675 |
| 2026-07-15 | Smith Gregory Stephen | Open-market sale | 4,000 | $356.31 | 116,495.408 |
| 2026-07-01 | JOHNSON MERCEDES | Open-market sale | 167 | $460.00 | 6,697 |
| 2026-06-25 | Herweck Peter | Grant / award | 63 | $0.00 | 16,201 |
| 2026-06-25 | Henry Andrew Chisholm | Grant / award | 52 | $0.00 | 2,927 |
| 2026-06-25 | TUFANO PAUL J | Grant / award | 116 | $0.00 | 65,848 |
| 2026-06-15 | Smith Gregory Stephen | Open-market sale | 4,000 | $423.03 | 120,469.573 |
| 2026-06-15 | MATZ MARILYN | Open-market sale | 1,200 | $423.03 | 17,440.675 |
| 2026-06-12 | TUFANO PAUL J | J | 19 | $0.00 | 65,732 |
| 2026-06-12 | Herweck Peter | J | 4 | $0.00 | 16,138 |
| 2026-06-12 | MADDOCK ERNEST E | J | 2 | $0.00 | 10,267 |
| 2026-06-02 | JOHNSON MERCEDES | Open-market sale | 167 | $369.74 | 6,864 |
| 2026-06-02 | Hathout Jean Pierre | Tax withholding | 174 | $392.62 | 9,733 |
| 2026-06-01 | Hathout Jean Pierre | Tax withholding | 267 | $369.47 | 9,907 |
| 2026-05-22 | Poulin Shannon John | Open-market sale | 656 | $355.00 | 15,721.578 |
| 2026-05-21 | MATZ MARILYN | Open-market sale | 400 | $350.00 | 18,640.675 |
| 2026-05-21 | Poulin Shannon John | Option exercise (derivative) | 2,843 | $0.00 | 8,532 |
| 2026-05-21 | Poulin Shannon John | Tax withholding | 1,531 | $345.98 | 16,377.578 |
| 2026-05-21 | Poulin Shannon John | Option exercise | 2,843 | $82.61 | 17,908.578 |
| 2026-05-21 | Poulin Shannon John | Open-market sale | 1,008 | $345.37 | 15,065.578 |
| 2026-05-15 | MATZ MARILYN | Open-market sale | 800 | $338.98 | 19,040.675 |
| 2026-05-15 | Smith Gregory Stephen | Option exercise (derivative) | 4,597 | $0.00 | 0 |
| 2026-05-15 | Smith Gregory Stephen | Open-market sale | 8,597 | $338.98 | 124,469.573 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.