Gregory Stephen Smith is President at TERADYNE, INC (TER). They have made 11 open-market trades across 1 company since 2017, most recently 2026-09-15.
CIK 0001666934
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TER | 108,495 | $35.3M |
Shares reported on the most recent Form 4, priced at the 2026-09-16 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TER | SELL · 10b5-1 | 2026-09-15 | 2026-09-16 | $337.83 | $1.4M | +14.0% | -7.7% | — |
| TER | SELL · 10b5-1 | 2026-08-17 | 2026-08-18 | $425.00 | $1.7M | -12.6% | -12.8% | — |
| TER | SELL · 10b5-1 | 2026-07-15 | 2026-07-16 | $356.31 | $1.4M | +4.9% | +45.0% | +17.6% |
| TER | SELL · 10b5-1 | 2026-06-15 | 2026-06-16 | $423.03 | $1.7M | +7.6% | -25.0% | -23.5% |
| TER | SELL · 10b5-1 | 2026-05-15 | 2026-05-19 | $338.98 | $2.9M | +12.6% | +33.4% | +35.0% |
| TER | SELL · 10b5-1 | 2025-12-12 | 2025-12-15 | $201.31 | $446K | +2.3% | +18.4% | +53.4% |
| TER | SELL · 10b5-1 | 2025-11-12 | 2025-11-14 | $180.20 | $399K | +6.5% | +15.6% | +84.6% |
| TER | SELL · 10b5-1 | 2025-10-10 | 2025-10-15 | $145.24 | $322K | +3.9% | +19.7% | +61.5% |
| TER | SELL · 10b5-1 | 2025-09-22 | 2025-09-24 | $126.39 | $140K | +12.6% | +9.8% | +51.1% |
| TER | SELL · 10b5-1 | 2025-09-12 | 2025-09-16 | $115.00 | $64K | +19.0% | +22.5% | +71.2% |
| TER | SELL · 10b5-1 | 2025-08-12 | 2025-08-14 | $106.00 | $59K | +6.2% | +2.2% | +60.6% |
| TER | SELL · 10b5-1 | 2025-07-30 | 2025-08-01 | $105.73 | $117K | +8.5% | +14.8% | +68.4% |
| TER | SELL · 10b5-1 | 2025-01-03 | 2025-01-07 | $130.00 | $400K | -4.1% | -17.3% | -47.2% |
| TER | SELL · 10b5-1 | 2024-12-16 | 2024-12-18 | $130.00 | $400K | -1.5% | +8.2% | -30.5% |
| TER | SELL · 10b5-1 | 2024-10-01 | 2024-10-03 | $132.80 | $818K | -3.5% | -21.0% | -4.1% |
| TER | SELL · 10b5-1 | 2024-09-11 | 2024-09-13 | $130.00 | $400K | +1.8% | +4.1% | -5.8% |
| TER | SELL | 2022-01-27 | 2022-01-28 | $110.51 | $3.1M | +8.4% | +5.3% | -0.3% |
| TER | SELL | 2022-01-26 | 2022-01-27 | $143.56 | $945K | +7.9% | +9.3% | -1.5% |
| TER | SELL | 2022-01-25 | 2022-01-26 | $142.68 | $780K | +3.4% | +8.6% | -2.6% |
| TER | SELL | 2021-03-11 | 2021-03-12 | $111.29 | $4.0M | -1.3% | +14.9% | +12.6% |
| TER | SELL | 2020-11-11 | 2020-11-13 | $99.95 | $1000K | +5.3% | +13.9% | +31.2% |
| TER | SELL | 2020-02-04 | 2020-02-05 | $70.40 | $888K | -5.5% | -17.3% | -16.6% |
| TER | SELL | 2020-01-31 | 2020-02-03 | $66.01 | $1.1M | +5.2% | -9.5% | -15.1% |
| TER | SELL | 2020-01-27 | 2020-01-29 | $69.87 | $1.7M | +1.2% | -15.7% | -9.4% |
| TER | SELL | 2019-02-04 | 2019-02-05 | $36.82 | $678K | +5.9% | +3.5% | +29.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.