Teradyne, Inc.
TERLast close · Oct 16, 2026325.00−18.21 (−5.31%)
Market cap$50.8B
Between May 8, 2026 and Oct 1, 2026, Teradyne (TER) insiders filed 40 Form 4 transactions: 19 sales worth $12.3M in total and no open-market purchase; 19 of the sales were under 10b5-1 plans set in advance. The largest seller was Smith Gregory Stephen, $2.9M. 21 other filings were grants, exercises or gifts, which say nothing about buying or selling.
40
0
19
24
Form 4 transactions
| Date | Insider | Title | Code | Plan | Shares | Price | Value |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | JOHNSON MERCEDES | Director | S | 10b5-1 | 167 | 402.90 | $67,284.3 |
| 2026-09-24 | Herweck Peter | Director | A | 77 | 0.00 | $0 | |
| 2026-09-25 | Herweck Peter | Director | J | 4 | 0.00 | $0 | |
| 2026-09-24 | TUFANO PAUL J | Director | A | 141 | 0.00 | $0 | |
| 2026-09-25 | TUFANO PAUL J | Director | J | 19 | 0.00 | $0 | |
| 2026-09-25 | MADDOCK ERNEST E | Director | J | 2 | 0.00 | $0 | |
| 2026-09-24 | Henry Andrew Chisholm | Director | A | 64 | 0.00 | $0 | |
| 2026-09-17 | MATZ MARILYN | Director | S | 10b5-1 | 400 | 351.11 | $140,444 |
| 2026-09-15 | Smith Gregory Stephen | President and CEO | S | 10b5-1 | 4,000 | 337.83 | $1.4M |
| 2026-09-15 | MATZ MARILYN | Director | S | 10b5-1 | 800 | 337.83 | $270,264 |
| 2026-09-01 | JOHNSON MERCEDES | Director | S | 10b5-1 | 167 | 341.30 | $56,997.1 |
| 2026-08-17 | Smith Gregory Stephen | President and CEO | S | 10b5-1 | 4,000 | 425.00 | $1.7M |
| 2026-08-17 | MATZ MARILYN | Director | S | 10b5-1 | 1,200 | 425.00 | $510,000 |
| 2026-08-03 | JOHNSON MERCEDES | Director | S | 10b5-1 | 166 | 358.15 | $59,452.9 |
| 2026-07-15 | Smith Gregory Stephen | President and CEO | S | 10b5-1 | 4,000 | 356.31 | $1.4M |
| 2026-07-15 | MATZ MARILYN | Director | S | 10b5-1 | 1,200 | 356.31 | $427,572 |
| 2026-07-01 | JOHNSON MERCEDES | Director | S | 10b5-1 | 167 | 460.00 | $76,820 |
| 2026-06-25 | TUFANO PAUL J | Director | A | 116 | 0.00 | $0 | |
| 2026-06-25 | Henry Andrew Chisholm | Director | A | 52 | 0.00 | $0 | |
| 2026-06-25 | Herweck Peter | Director | A | 63 | 0.00 | $0 | |
| 2026-06-15 | MATZ MARILYN | Director | S | 10b5-1 | 1,200 | 423.03 | $507,636 |
| 2026-06-15 | Smith Gregory Stephen | President and CEO | S | 10b5-1 | 4,000 | 423.03 | $1.7M |
| 2026-06-12 | MADDOCK ERNEST E | Director | J | 2 | 0.00 | $0 | |
| 2026-06-12 | Herweck Peter | Director | J | 4 | 0.00 | $0 | |
| 2026-06-12 | TUFANO PAUL J | Director | J | 19 | 0.00 | $0 | |
| 2026-06-01 | Hathout Jean Pierre | President, Teradyne Robotics | F | 267 | 369.47 | $98,648.5 | |
| 2026-06-02 | Hathout Jean Pierre | President, Teradyne Robotics | F | 174 | 392.62 | $68,315.9 | |
| 2026-06-02 | JOHNSON MERCEDES | Director | S | 10b5-1 | 167 | 369.74 | $61,746.6 |
| 2026-05-21 | Poulin Shannon John | President, Semiconductor Test | S | 10b5-1 | 1,008 | 345.37 | $348,133 |
| 2026-05-21 | Poulin Shannon John | President, Semiconductor Test | M | 10b5-1 | 2,843 | 82.61 | $234,860.2 |
| 2026-05-21 | Poulin Shannon John | President, Semiconductor Test | F | 10b5-1 | 1,531 | 345.98 | $529,695.4 |
| 2026-05-22 | Poulin Shannon John | President, Semiconductor Test | S | 10b5-1 | 656 | 355.00 | $232,880 |
| 2026-05-21 | Poulin Shannon John | President, Semiconductor Test | M | 10b5-1 | 2,843 | 0.00 | $0 |
| 2026-05-21 | MATZ MARILYN | Director | S | 10b5-1 | 400 | 350.00 | $140,000 |
| 2026-05-15 | Smith Gregory Stephen | President and CEO | M | 10b5-1 | 4,597 | 72.10 | $331,443.7 |
| 2026-05-15 | Smith Gregory Stephen | President and CEO | S | 10b5-1 | 8,597 | 338.98 | $2.9M |
| 2026-05-15 | Smith Gregory Stephen | President and CEO | M | 10b5-1 | 4,597 | 0.00 | $0 |
| 2026-05-15 | MATZ MARILYN | Director | S | 10b5-1 | 800 | 338.98 | $271,184 |
| 2026-05-08 | Herweck Peter | Director | A | 668 | 0.00 | $0 | |
| 2026-05-08 | JOHNSON MERCEDES | Director | A | 668 | 0.00 | $0 |
Codes are the SEC's: P open-market purchase, S open-market sale; M exercise, F tax withholding, A grant and G gift are routine. A 10b5-1 flag means the trade ran under a plan adopted in advance. Method notes in where the numbers come from.