Stephen A. Skaggs is Director at COHERENT INC (COHR). They have made 13 open-market trades across 2 companies since 2016, most recently 2026-08-06.
CIK 0001224172
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 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ATML | 647,172 | $5.3M |
| IIVI | 17,690 | $4.0M |
| COHR | 16,864 | $3.9M |
| OUST | 61,415 | $1.7M |
| Total | $15.0M |
Shares reported on the most recent Form 4, priced at the 2026-08-07 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| OUST | SELL · 10b5-1 | 2026-08-05 | 2026-08-07 | $45.54 | $228K | -6.9% | -12.9% | — |
| OUST | SELL · 10b5-1 | 2026-05-05 | 2026-05-07 | $30.00 | $150K | +17.5% | +61.6% | +78.1% |
| OUST | SELL · 10b5-1 | 2026-04-21 | 2026-04-22 | $28.00 | $140K | +2.1% | +34.2% | +47.6% |
| COHR | SELL | 2026-03-09 | 2026-03-11 | $243.13 | $857K | +4.2% | +25.6% | +45.4% |
| COHR | SELL · 10b5-1 | 2025-11-20 | 2025-11-21 | $150.00 | $300K | +22.2% | +31.6% | +60.2% |
| COHR | SELL · 10b5-1 | 2025-10-29 | 2025-10-31 | $140.00 | $280K | +17.3% | +22.4% | +61.6% |
| COHR | SELL · 10b5-1 | 2025-10-24 | 2025-10-28 | $130.00 | $260K | +13.0% | +20.1% | +44.6% |
| COHR | SELL · 10b5-1 | 2025-08-13 | 2025-08-14 | $122.23 | $244K | +0.4% | +16.5% | +71.7% |
| COHR | SELL | 2020-12-03 | 2020-12-03 | $125.00 | $63K | +6.0% | +9.4% | +16.0% |
| COHR | SELL | 2020-05-11 | 2020-05-13 | $137.53 | $69K | +4.8% | +5.5% | +16.1% |
| COHR | SELL | 2020-02-18 | 2020-02-19 | $151.23 | $76K | -15.3% | -29.3% | +25.4% |
| COHR | SELL | 2019-11-11 | 2019-11-12 | $157.58 | $473K | -15.3% | -0.3% | +10.5% |
| COHR | SELL | 2018-02-12 | 2018-02-13 | $212.27 | $106K | +3.2% | +21.3% | +20.2% |
| COHR | SELL | 2017-11-13 | 2017-11-13 | $308.97 | $154K | +8.6% | -5.8% | -21.1% |
| COHR | SELL | 2017-08-14 | 2017-08-17 | $217.58 | $109K | +0.7% | +15.0% | +34.0% |
| COHR | SELL | 2017-05-15 | 2017-05-16 | $249.48 | $125K | -3.7% | -0.9% | +12.3% |
| COHR | SELL | 2017-02-13 | 2017-02-15 | $198.13 | $99K | -11.0% | -12.1% | -16.9% |
| COHR | SELL | 2016-11-14 | 2016-11-16 | $126.26 | $63K | +7.6% | +4.8% | +35.8% |
| COHR | SELL | 2016-08-15 | 2016-08-17 | $108.60 | $54K | -0.7% | +4.5% | +33.0% |
| ATML | SELL | 2016-03-01 | 2016-03-03 | $8.10 | $2.0M | +0.1% | +0.4% | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.