William H. Yeh is Director at APPLIED OPTOELECTRONICS, INC. (AAOI). They have made 11 open-market trades across 1 company since 2016, most recently 2026-06-09.
CIK 0001587419
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.
6 open-market purchases totalling $1.1M since 2016, against 5 sales. Across 6 scored buys the stock is up 0.9% at ninety days, and 4.1 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| AAOI | 239,985 | $18.1M |
Shares reported on the most recent Form 4, priced at the 2026-06-11 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 50% | 50% |
| Avg Move | +2.2% | +3.5% | +0.9% |
| Alpha | +2.7% | +2.4% | -4.1% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AAOI | SELL | 2026-03-09 | 2026-03-10 | $105.76 | $1.6M | -26.2% | +12.4% | +65.8% |
| AAOI | BUY | 2025-08-13 | 2025-08-14 | $22.54 | $406K | +14.9% | +35.5% | +9.8% |
| AAOI | SELL | 2024-12-03 | 2024-12-03 | $43.08 | $431K | -12.4% | -14.4% | -57.4% |
| AAOI | BUY | 2024-05-14 | 2024-05-15 | $10.54 | $207K | +9.6% | -10.8% | -29.0% |
| AAOI | BUY | 2024-03-18 | 2024-03-19 | $12.75 | $102K | +0.5% | -15.8% | -26.6% |
| AAOI | BUY | 2024-02-27 | 2024-02-28 | $15.29 | $153K | -4.9% | -7.5% | -17.7% |
| AAOI | SELL | 2023-08-21 | 2023-08-22 | $15.22 | $152K | -7.9% | -38.5% | -4.5% |
| AAOI | BUY | 2020-06-15 | 2020-06-16 | $9.02 | $90K | -1.0% | +13.5% | +8.6% |
| AAOI | SELL | 2017-05-31 | 2017-06-02 | $72.12 | $2.2M | -18.7% | -18.1% | -21.1% |
| AAOI | SELL | 2017-02-28 | 2017-03-02 | $47.15 | $3.6M | -3.6% | +6.9% | +39.6% |
| AAOI | BUY | 2016-05-27 | 2016-06-01 | $10.14 | $162K | -6.1% | +5.8% | +60.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.