Applied Optoelectronics's top three insider shareholders as of September 29, 2026 are Chih-Hsiang (Thompson) Lin (President And Ceo, 3.32Mn shares), Chih-Hsiang (Thompson) Lin (President And Ceo, 1.62Mn shares), Chih-Hsiang (Thompson) Lin (President And Ceo, 1.30Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Chih-Hsiang (Thompson) Lin | President And Ceo | 2,279,134 | 0 | 2,279,134 | 47.5% | 04 Aug, 2026 |
| 2 | Shu-Hua (Joshua) Yeh | Officer | 600,943 | 0 | 600,943 | 12.5% | 20 Aug, 2026 |
| 3 | Stefan J. Murry | Chief Financial Officer | 531,786 | 0 | 531,786 | 11.1% | 10 Sep, 2026 |
| 4 | Che-Wei Lin | Director | 254,672 | 0 | 254,672 | 5.3% | 11 Jun, 2026 |
| 5 | Hung-Lun (Fred) Chang | Officer | 249,276 | 0 | 249,276 | 5.2% | 10 Sep, 2026 |
| 6 | William H Yeh | Director | 239,985 | 0 | 239,985 | 5.0% | 11 Jun, 2026 |
| 7 | David C Kuo | General Counsel And Secretary | 237,929 | 0 | 237,929 | 5.0% | 23 Jul, 2026 |
| 8 | Min-Chu (Mike) Chen | Director | 162,219 | 0 | 162,219 | 3.4% | 11 Jun, 2026 |
| 9 | Richard B Black | Director | 0 | 159,092 | 159,092 | 3.3% | 17 Sep, 2026 |
| 10 | Cynthia Delaney | Director | 60,813 | 0 | 60,813 | 1.3% | 11 Jun, 2026 |
| 11 | Elizabeth G Loboa | Director | 20,523 | 0 | 20,523 | 0.4% | 05 Mar, 2026 |
| 12 | Robert James Flanagan | Director | 1,166 | 0 | 1,166 | 0.0% | 11 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 15 Sep, 2026 | Richard B Black | Director | Disposed G | 2,200 | $0.00 | $0 | 159,092 | Indirect |
| 08 Sep, 2026 | Hung-Lun (Fred) Chang | Officer | Disposed S | 32,172 | $110.21 | $3.55Mn | 249,276 | Direct |
| 10 Sep, 2026 | Stefan J. Murry | Chief Financial Officer | Disposed S | 4,000 | $105.33 | $421.32K | 367,168 | Direct |
| 18 Aug, 2026 | Shu-Hua (Joshua) Yeh | Officer | Disposed S | 6,000 | $147.73 | $886.38K | 377,498 | Direct |
| 10 Aug, 2026 | Stefan J. Murry | Chief Financial Officer | Disposed S | 4,000 | $144.79 | $579.16K | 371,168 | Direct |
| 04 Aug, 2026 | Shu-Hua (Joshua) Yeh | Officer | Disposed S | 4,715 | $126.50 | $596.45K | 383,498 | Direct |
| 31 Jul, 2026 | Chih-Hsiang (Thompson) Lin | President And Ceo | Acquired A | 9,251 | $0.00 | $0 | 1,296,047 | Direct |
| 22 Jul, 2026 | David C Kuo | Officer | Disposed F | 1,869 | $119.26 | $222.90K | 147,209 | Direct |
| 21 Jul, 2026 | Shu-Hua (Joshua) Yeh | Officer | Disposed S | 1,285 | $120.02 | $154.23K | 392,922 | Direct |
| 22 Jul, 2026 | Hung-Lun (Fred) Chang | Officer | Disposed F | 2,674 | $119.26 | $318.90K | 283,450 | Direct |
| 22 Jul, 2026 | Chih-Hsiang (Thompson) Lin | President And Ceo | Disposed F | 8,753 | $119.26 | $1.04Mn | 1,293,683 | Direct |
| 22 Jul, 2026 | Stefan J. Murry | Chief Financial Officer | Disposed F | 2,971 | $119.26 | $354.32K | 377,605 | Direct |
| 22 Jul, 2026 | Chih-Hsiang (Thompson) Lin | President And Ceo | Disposed F | 2,332 | $119.26 | $278.11K | 1,291,351 | Direct |
| 22 Jul, 2026 | David C Kuo | Officer | Disposed F | 472 | $119.26 | $56.29K | 146,737 | Direct |
| 22 Jul, 2026 | Shu-Hua (Joshua) Yeh | Officer | Disposed F | 2,553 | $119.26 | $304.47K | 390,369 | Direct |
| 22 Jul, 2026 | Hung-Lun (Fred) Chang | Officer | Disposed F | 613 | $119.26 | $73.11K | 282,837 | Direct |
| 22 Jul, 2026 | Stefan J. Murry | Chief Financial Officer | Disposed F | 679 | $119.26 | $80.98K | 376,926 | Direct |
| 22 Jul, 2026 | David C Kuo | Officer | Disposed F | 516 | $119.26 | $61.54K | 146,221 | Direct |
| 22 Jul, 2026 | Chih-Hsiang (Thompson) Lin | President And Ceo | Disposed F | 2,524 | $119.26 | $301.01K | 1,288,827 | Direct |
| 22 Jul, 2026 | Stefan J. Murry | Chief Financial Officer | Disposed F | 988 | $119.26 | $117.83K | 375,938 | Direct |