Glenn Grindstaff is CHRO at OSI SYSTEMS INC (OSIS). They have made 5 open-market trades across 1 company since 2021, most recently 2026-08-24.
CIK 0001804609
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 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| OSIS | 10,193 | $2.0M |
Shares reported on the most recent Form 4, priced at the 2026-08-25 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| OSIS | SELL | 2025-05-08 | 2025-05-09 | $224.89 | $309K | -1.4% | -1.0% | -2.7% |
| OSIS | SELL | 2023-09-13 | 2023-09-14 | $120.61 | $331K | -6.9% | -2.7% | +4.9% |
| OSIS | SELL | 2022-11-07 | 2022-11-08 | $84.77 | $136K | +3.8% | -0.0% | +11.5% |
| OSIS | SELL | 2022-05-27 | 2022-05-31 | $83.18 | $4K | +2.3% | +1.7% | +1.2% |
| OSIS | SELL | 2021-09-08 | 2021-09-09 | $97.40 | $35K | -5.8% | -1.3% | -3.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.