SEC Form 4 · Updated Daily
AAOI
— APPLIED OPTOELECTRONICS, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Lin Chih-Hsiang (Thompson) | Director · Officer | 1,286,716 | 2026-10-22 | F |
| Yeh Shu-Hua (Joshua) | Officer | 370,296 | 2026-10-22 | F |
| Murry Stefan J. | Officer | 359,901 | 2026-10-22 | F |
| MOORE ALAN D | Director | 261,519 | 2019-05-31 | A |
| Lin Che-Wei | Director | 254,672 | 2026-06-09 | A |
| Chang Hung-Lun (Fred) | Officer | 246,336 | 2026-10-22 | F |
| Yeh William H | Director | 239,985 | 2026-06-09 | A |
| Chen Min-Chu (Mike) | Director | 162,219 | 2026-06-09 | A |
| BLACK RICHARD B | Director | 159,092 | 2026-09-15 | G |
| Kuo David C | Officer | 143,761 | 2026-10-22 | F |
| DeLaney Cynthia | Director | 60,813 | 2026-06-09 | A |
| Ignatiev Alex | Director | 52,549 | 2020-06-12 | A |
| Anselm Klaus Alexander | Officer | 21,523 | 2016-02-04 | A |
| Loboa Elizabeth G | Director | 20,523 | 2026-03-03 | S |
| Kang Juen-Sheng (Andrew) | Director | 5,500 | 2013-11-14 | A |
| DUNN JAMES L JR | Officer | 2,500 | 2014-09-23 | M |
| Li Chung-Yao (Ford) | Reporting Owner | 2,250 | 2015-06-16 | S |
| Flanagan Robert James | Director | 1,166 | 2026-06-09 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,165 | $77.32 | 1,279,374 |
| 2026-10-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,691 | $77.32 | 1,281,539 |
| 2026-10-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,486 | $77.32 | 1,284,230 |
| 2026-10-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 9,331 | $77.32 | 1,286,716 |
| 2026-10-22 | Kuo David C | Tax withholding | 447 | $77.32 | 142,228 |
| 2026-10-22 | Kuo David C | Tax withholding | 567 | $77.32 | 142,675 |
| 2026-10-22 | Kuo David C | Tax withholding | 519 | $77.32 | 143,242 |
| 2026-10-22 | Kuo David C | Tax withholding | 2,053 | $77.32 | 143,761 |
| 2026-10-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 323 | $77.32 | 369,280 |
| 2026-10-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 406 | $77.32 | 369,603 |
| 2026-10-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 287 | $77.32 | 370,009 |
| 2026-10-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 1,202 | $77.32 | 370,296 |
| 2026-10-22 | Murry Stefan J. | Tax withholding | 846 | $77.32 | 357,223 |
| 2026-10-22 | Murry Stefan J. | Tax withholding | 1,086 | $77.32 | 358,069 |
| 2026-10-22 | Murry Stefan J. | Tax withholding | 746 | $77.32 | 359,155 |
| 2026-10-22 | Murry Stefan J. | Tax withholding | 3,267 | $77.32 | 359,901 |
| 2026-10-22 | Chang Hung-Lun (Fred) | Tax withholding | 677 | $77.32 | 244,135 |
| 2026-10-22 | Chang Hung-Lun (Fred) | Tax withholding | 850 | $77.32 | 244,812 |
| 2026-10-22 | Chang Hung-Lun (Fred) | Tax withholding | 674 | $77.32 | 245,662 |
| 2026-10-22 | Chang Hung-Lun (Fred) | Tax withholding | 2,940 | $77.32 | 246,336 |
| 2026-10-12 | Murry Stefan J. | Open-market sale | 4,000 | $102.87 | 363,168 |
| 2026-10-05 | Yeh Shu-Hua (Joshua) | Open-market sale | 6,000 | $120.03 | 371,498 |
| 2026-09-15 | BLACK RICHARD B | Gift | 2,200 | $0.00 | 159,092 |
| 2026-09-10 | Murry Stefan J. | Open-market sale | 4,000 | $105.33 | 367,168 |
| 2026-09-08 | Chang Hung-Lun (Fred) | Open-market sale | 32,172 | $110.21 | 249,276 |
| 2026-08-18 | Yeh Shu-Hua (Joshua) | Open-market sale | 6,000 | $147.73 | 377,498 |
| 2026-08-10 | Murry Stefan J. | Open-market sale | 4,000 | $144.79 | 371,168 |
| 2026-08-04 | Yeh Shu-Hua (Joshua) | Open-market sale | 4,715 | $126.50 | 383,498 |
| 2026-07-31 | Lin Chih-Hsiang (Thompson) | Grant / award | 9,251 | $0.00 | 1,296,047 |
| 2026-07-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 686 | $119.26 | 388,213 |
| 2026-07-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 861 | $119.26 | 388,899 |
| 2026-07-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 609 | $119.26 | 389,760 |
| 2026-07-22 | Yeh Shu-Hua (Joshua) | Tax withholding | 2,553 | $119.26 | 390,369 |
| 2026-07-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,031 | $119.26 | 1,286,796 |
| 2026-07-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,524 | $119.26 | 1,288,827 |
| 2026-07-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 2,332 | $119.26 | 1,291,351 |
| 2026-07-22 | Lin Chih-Hsiang (Thompson) | Tax withholding | 8,753 | $119.26 | 1,293,683 |
| 2026-07-22 | Chang Hung-Lun (Fred) | Tax withholding | 616 | $119.26 | 281,448 |
| 2026-07-22 | Chang Hung-Lun (Fred) | Tax withholding | 773 | $119.26 | 280,064 |
| 2026-07-22 | Chang Hung-Lun (Fred) | Tax withholding | 613 | $119.26 | 282,837 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.