AAOI · Insider Trading
Applied Optoelectronics, Inc.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-14 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$411.48K |
| 2026-10-07 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −6,000 | −$720.18K |
| 2026-09-17 | Richard B Black | Director | G | −2,200 | — |
| 2026-09-10 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$421.32K |
| 2026-09-10 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | −32,172 | −$3.55M |
| 2026-08-20 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −6,000 | −$886.38K |
| 2026-08-12 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$579.16K |
| 2026-08-04 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −4,715 | −$596.45K |
| 2026-08-04 | Chih-Hsiang (Thompson) Lin | President and CEO | A | +9,251 | — |
| 2026-07-23 | Hung-Lun (Fred) Chang | *** See Remarks | F | −4,676 | −$557.66K |
| 2026-07-23 | Stefan J. Murry | Chief Financial Officer | F | −5,408 | −$644.96K |
| 2026-07-23 | David C Kuo | *** See Remarks | F | −3,264 | −$389.26K |
| 2026-07-23 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | −5,994 | −$715.82K |
| 2026-07-23 | Chih-Hsiang (Thompson) Lin | President and CEO | F | −15,640 | −$1.87M |
| 2026-07-14 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$488.36K |
| 2026-06-18 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | −40,329 | −$6.88M |
| 2026-06-18 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −6,000 | −$1.03M |
| 2026-06-16 | Stefan J. Murry | Chief Financial Officer | MIXED | −63,330 | −$10.74M |
| 2026-06-16 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | −52,223 | −$8.84M |
| 2026-06-16 | Hung-Lun (Fred) Chang | *** See Remarks | MIXED | −61,297 | −$10.38M |
| 2026-06-16 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | −145,655 | −$24.80M |
| 2026-06-16 | David C Kuo | *** See Remarks | MIXED | −48,292 | −$8.16M |
| 2026-06-11 | Robert James Flanagan | Director | A | +1,166 | — |
| 2026-06-11 | Cynthia DeLaney | Director | A | +1,166 | — |
| 2026-06-11 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$685.80K |
| 2026-06-11 | William H Yeh | Director | A | +1,166 | — |
| 2026-06-11 | Min-Chu (Mike) Chen | Director | A | +1,166 | — |
| 2026-06-11 | Che-Wei Lin | Director | A | +1,166 | — |
| 2026-06-11 | Richard B Black | Director | A | +1,166 | — |
| 2026-06-08 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −10,000 | −$2.05M |
| 2026-06-08 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | −4,000 | −$800.28K |
| 2026-06-04 | Min-Chu (Mike) Chen | Director | Sell | −8,247 | −$1.66M |
| 2026-06-01 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | −0 | — |
| 2026-05-28 | Cynthia DeLaney | Director | Sell | −56,575 | −$10.71M |
| 2026-05-19 | Stefan J. Murry | Chief Financial Officer | MIXED | +185,780 | −$11.49M |
| 2026-05-19 | Chih-Hsiang (Thompson) Lin | President and CEO | MIXED | +567,088 | −$26.54M |
| 2026-05-19 | Shu-Hua (Joshua) Yeh | *** See Remarks | MIXED | +145,088 | −$8.29M |
| 2026-05-19 | Hung-Lun (Fred) Chang | *** See Remarks | MIXED | +163,272 | −$11.02M |
| 2026-05-19 | David C Kuo | *** See Remarks | MIXED | +118,292 | −$6.96M |
| 2026-05-13 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$638.10K |
| 2026-04-24 | Chih-Hsiang (Thompson) Lin | President and CEO | F | −16,672 | −$2.51M |
| 2026-04-24 | David C Kuo | *** See Remarks | F | −3,585 | −$539.79K |
| 2026-04-24 | Hung-Lun (Fred) Chang | *** See Remarks | F | −5,140 | −$773.93K |
| 2026-04-24 | Shu-Hua (Joshua) Yeh | *** See Remarks | F | −4,709 | −$709.03K |
| 2026-04-24 | Stefan J. Murry | Chief Financial Officer | F | −5,944 | −$894.99K |
| 2026-04-14 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$546.01K |
| 2026-03-23 | David C Kuo | *** See Remarks | Sell | −29,000 | −$2.90M |
| 2026-03-18 | Hung-Lun (Fred) Chang | *** See Remarks | Sell | −36,400 | −$3.65M |
| 2026-03-10 | Stefan J. Murry | Chief Financial Officer | Sell | −4,000 | −$451.04K |
| 2026-03-10 | Shu-Hua (Joshua) Yeh | *** See Remarks | Sell | −50,000 | −$4.85M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Chih-Hsiang (Thompson) Lin | President and CEO | 2,103,649 | $158.97M |
| Shu-Hua (Joshua) Yeh | *** See Remarks | 371,498 | $28.07M |
| Stefan J. Murry | Chief Financial Officer | 363,168 | $27.44M |
| Che-Wei Lin | Director | 254,672 | $19.25M |
| William H Yeh | Director | 253,425 | $19.15M |
| Hung-Lun (Fred) Chang | *** See Remarks | 249,276 | $18.84M |
| Min-Chu (Mike) Chen | Director | 182,219 | $13.77M |
| Richard B Black | Director | 163,329 | $12.34M |
| David C Kuo | *** See Remarks | 146,737 | $11.09M |
| Cynthia DeLaney | Director | 63,193 | $4.78M |
| Elizabeth G Loboa | Director | 20,523 | $1.55M |
| Robert James Flanagan | Director | 1,166 | $88.11K |
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.
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.