APPLIED OPTOELECTRONICS, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Kuo David C | *** See Remarks | Sale | 12,500 | $40.15 | $501,875 | 130,948 | Dec 23, 2025 |
| Loboa Elizabeth G | — | Sale | 4,121 | $30.23 | $124,578 | 122,870 | Dec 15, 2025 |
| Murry Stefan J. | Chief Financial Officer | Gift | 1,000 | — | — | 286,971 | Dec 10, 2025 |
| BLACK RICHARD B | — | Gift | 600 | — | — | 169,494 | Nov 26, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Tax Withholding | 614 | $33.40 | $20,508 | 251,331 | Oct 22, 2025 |
| Kuo David C | *** See Remarks | Tax Withholding | 516 | $33.40 | $17,234 | 143,448 | Oct 22, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Tax Withholding | 5,491 | $33.40 | $183,399 | 1,657,999 | Oct 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Tax Withholding | 989 | $33.40 | $33,033 | 291,971 | Oct 22, 2025 |
| Yeh Shu-Hua (Joshua) | *** See Remarks | Tax Withholding | 1,898 | $33.40 | $63,393 | 356,200 | Oct 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Sale | 12,000 | $22.37 | $268,440 | 298,477 | Aug 15, 2025 |
| Kuo David C | *** See Remarks | Sale | 2,000 | $22.34 | $44,680 | 147,371 | Aug 15, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Purchase | 920 | $21.60 | $19,872 | 1,663,490 | Aug 14, 2025 |
| Lin Che-Wei | — | Purchase | 4,609 | $21.64 | $99,739 | 253,506 | Aug 14, 2025 |
| Yeh William H | — | Purchase | 10,000 | $22.75 | $227,500 | 245,819 | Aug 13, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Purchase | 6,500 | $23.14 | $150,410 | 1,643,315 | Aug 13, 2025 |
| Chen Min-Chu (Mike) | — | Purchase | 7,500 | $22.91 | $171,825 | 22,500 | Aug 13, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Sale | 15,784 | $22.70 | $358,297 | 256,326 | Aug 13, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Tax Withholding | 774 | $28.23 | $21,850 | 272,110 | Jul 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Tax Withholding | 1,057 | $28.23 | $29,839 | 316,979 | Jul 22, 2025 |
| Yeh Shu-Hua (Joshua) | *** See Remarks | Tax Withholding | 862 | $28.23 | $24,334 | 358,098 | Jul 22, 2025 |
| Kuo David C | *** See Remarks | Tax Withholding | 473 | $28.23 | $13,353 | 149,887 | Jul 22, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Tax Withholding | 3,110 | $28.23 | $87,795 | 1,655,915 | Jul 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Sale | 3,000 | $27.46 | $82,380 | 318,036 | Jul 16, 2025 |
| Murry Stefan J. | Chief Financial Officer | Sale | 2,000 | $16.05 | $32,100 | 321,036 | Jun 16, 2025 |
| Yeh William H | — | Award / Grant | 12,281 | — | — | 235,819 | Jun 13, 2025 |
| Loboa Elizabeth G | — | Award / Grant | 12,281 | — | — | 126,991 | Jun 13, 2025 |
| Lin Che-Wei | — | Award / Grant | 12,281 | — | — | 248,897 | Jun 13, 2025 |
| DeLaney Cynthia | — | Award / Grant | 12,281 | — | — | 137,222 | Jun 13, 2025 |
| Chen Min-Chu (Mike) | — | Award / Grant | 12,281 | — | — | 177,335 | Jun 13, 2025 |
| BLACK RICHARD B | — | Award / Grant | 12,281 | — | — | 170,094 | Jun 13, 2025 |
| Murry Stefan J. | Chief Financial Officer | Sale | 2,000 | $19.35 | $38,700 | 323,036 | May 16, 2025 |
| Kuo David C | *** See Remarks | Sale | 11,426 | $19.10 | $218,237 | 153,900 | May 14, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Sale | 23,837 | $19.06 | $454,333 | 278,842 | May 13, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Purchase | 10,200 | $18.24 | $186,048 | 1,648,025 | May 13, 2025 |
| Murry Stefan J. | Chief Financial Officer | Award / Grant | 156,250 | — | — | 384,663 | May 13, 2025 |
| Yeh Shu-Hua (Joshua) | *** See Remarks | Tax Withholding | 60,716 | $14.76 | $896,168 | 365,097 | May 9, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Tax Withholding | 175,671 | $14.76 | $2,592,904 | 1,637,825 | May 9, 2025 |
| Kuo David C | *** See Remarks | Tax Withholding | 34,091 | $14.76 | $503,183 | 165,326 | May 9, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Tax Withholding | 54,516 | $14.76 | $804,656 | 302,679 | May 9, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Tax Withholding | 774 | $10.05 | $7,779 | 214,338 | Apr 30, 2025 |
| Yeh Shu-Hua (Joshua) | *** See Remarks | Tax Withholding | 862 | $10.05 | $8,663 | 282,956 | Apr 30, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Tax Withholding | 2,525 | $10.05 | $25,376 | 1,367,068 | Apr 30, 2025 |
| Murry Stefan J. | Chief Financial Officer | Tax Withholding | 989 | $10.05 | $9,939 | 228,413 | Apr 30, 2025 |
| Kuo David C | *** See Remarks | Tax Withholding | 517 | $10.05 | $5,196 | 110,132 | Apr 30, 2025 |
| Yeh Shu-Hua (Joshua) | *** See Remarks | Tax Withholding | 2,554 | $10.05 | $25,668 | 284,429 | Apr 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Tax Withholding | 1,057 | $10.05 | $10,623 | 234,920 | Apr 22, 2025 |
| Lin Chih-Hsiang (Thompson) | President and CEO | Tax Withholding | 2,333 | $10.05 | $23,447 | 1,369,593 | Apr 22, 2025 |
| Kuo David C | *** See Remarks | Tax Withholding | 605 | $10.05 | $6,080 | 114,059 | Apr 22, 2025 |
| Chang Hung-Lun (Fred) | *** See Remarks | Tax Withholding | 967 | $10.05 | $9,718 | 220,106 | Apr 22, 2025 |
| Murry Stefan J. | Chief Financial Officer | Sale | 2,000 | $10.95 | $21,900 | 235,977 | Apr 16, 2025 |