AAOI (Applied Optoelectronics, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by AAOI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | — | — |
| 2026-08-12 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-08-04 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | — | — |
| 2026-08-04 | Chih-Hsiang (Thompson) Lin | President and CEO | A | — | — |
| 2026-07-23 | Hung-Lun (Fred) Chang | *** See Remarks | F | — | — |
| 2026-07-23 | Stefan J. Murry | Chief Financial Officer | F | — | — |
| 2026-07-23 | David C Kuo | *** See Remarks | F | — | — |
| 2026-07-23 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | — | — |
| 2026-07-23 | Chih-Hsiang (Thompson) Lin | President and CEO | F | — | — |
| 2026-07-14 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-06-18 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | — | — |
| 2026-06-18 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | — | — |
| 2026-06-16 | Stefan J. Murry | Chief Financial Officer | MIXED | — | — |
| 2026-06-16 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | — | — |
| 2026-06-16 | Hung-Lun (Fred) Chang | *** See Remarks | MIXED | — | — |
| 2026-06-16 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | — | — |
| 2026-06-16 | David C Kuo | *** See Remarks | MIXED | — | — |
| 2026-06-11 | Robert James Flanagan | Director | A | — | — |
| 2026-06-11 | Cynthia DeLaney | Director | A | — | — |
| 2026-06-11 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-06-11 | William H Yeh | Director | A | — | — |
| 2026-06-11 | Min-Chu (Mike) Chen | Director | A | — | — |
| 2026-06-11 | Che-Wei Lin | Director | A | — | — |
| 2026-06-11 | RICHARD B BLACK | Director | A | — | — |
| 2026-06-08 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | — | — |
| 2026-06-08 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | — | — |
| 2026-06-04 | Min-Chu (Mike) Chen | Director | Sell | — | — |
| 2026-06-01 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | — | — |
| 2026-05-28 | Cynthia DeLaney | Director | Sell | — | — |
| 2026-05-19 | Stefan J. Murry | Chief Financial Officer | MIXED | — | — |
| 2026-05-19 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | — | — |
| 2026-05-19 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | — | — |
| 2026-05-19 | Hung-Lun (Fred) Chang | *** See Remarks | MIXED | — | — |
| 2026-05-19 | David C Kuo | *** See Remarks | MIXED | — | — |
| 2026-05-13 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-04-24 | Chih-Hsiang (Thompson) Lin | President and CEO | F | — | — |
| 2026-04-24 | David C Kuo | *** See Remarks | F | — | — |
| 2026-04-24 | Hung-Lun (Fred) Chang | *** See Remarks | F | — | — |
| 2026-04-24 | Shu-Hua (Joshua) Yeh | *** See Remarks | F | — | — |
| 2026-04-24 | Stefan J. Murry | Chief Financial Officer | F | — | — |
| 2026-04-14 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-03-23 | David C Kuo | *** See Remarks | Sell | — | — |
| 2026-03-18 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | — | — |
| 2026-03-10 | Stefan J. Murry | Chief Financial Officer | Sell | — | — |
| 2026-03-10 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | — | — |
| 2026-03-10 | William H Yeh | Director | Sell | — | — |
| 2026-03-10 | Min-Chu (Mike) Chen | Director | Sell | — | — |
| 2026-03-05 | RICHARD B BLACK | Director | Sell | — | — |
| 2026-03-05 | Elizabeth G Loboa | Director | Sell | — | — |
| 2026-03-05 | Cynthia DeLaney | Director | Sell | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | President and CEO | 2,103,649 | — |
| — | *** See Remarks | 377,498 | — |
| — | Chief Financial Officer | 371,168 | — |
| — | Director | 329,892 | — |
| — | *** See Remarks | 283,450 | — |
| — | Director | 261,519 | — |
| — | Director | 254,672 | — |
| — | Director | 253,425 | — |
| — | Director | 182,219 | — |
| — | *** See Remarks | 146,737 | — |
| — | Director | 63,193 | — |
| — | Director | 52,549 | — |
| — | Director | 29,309 | — |
| — | VP Semiconductor Products | 21,523 | — |
| — | Director | 20,523 | — |
| — | Sr. VP, Asia General Manager | 2,250 | — |
| — | Director | 1,166 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AAOI quote page; the site-wide leaderboard is on the insider transactions hub.