Insider · SEC Forms 3, 4, 5
CIK 1494730
All transactions
Every Form 4 row this person reported, newest first
Insider · SEC Forms 3, 4, 5
Every Form 4 row this person reported, newest first
Chang Hung-Lun (Fred) (CIK 1587462) reported 41 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-10). Recent activity: Sell AAOI (32,172 shares), Sell AAOI (2,674 shares), Sell AAOI (613 shares), Sell AAOI (773 shares), Sell AAOI (616 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-10 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 32,172 | $3.5M |
| 2026-07-23 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** See Remarks | Sell | 2,674 | $318,901 |
| 2026-07-23 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** See Remarks | Sell | 613 | $73,106 |
| 2026-07-23 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** See Remarks | Sell | 773 | $92,188 |
| 2026-07-23 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** See Remarks | Sell | 616 | $73,464 |
| 2026-06-18 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 40,329 | $6.9M |
| 2026-06-16 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 27,297 | $4.7M |
| 2026-06-16 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 34,000 | $5.7M |
| 2026-06-08 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 4,000 | $800,280 |
| 2026-05-19 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Buy | 224,199 | $0 |
| 2026-05-19 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 27,297 | $5.2M |
| 2026-05-19 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 33,630 | $5.8M |
| 2026-04-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 2,940 | $442,676 |
| 2026-04-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 673 | $101,334 |
| 2026-04-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 850 | $127,984 |
| 2026-04-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 677 | $101,936 |
| 2026-03-18 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 36,400 | $3.6M |
| 2026-02-11 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Buy | 25,799 | $0 |
| 2026-01-26 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 1,874 | $71,924 |
| 2026-01-26 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 2,940 | $112,837 |
| 2026-01-26 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 674 | $25,868 |
| 2026-01-26 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 850 | $32,623 |
| 2025-10-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 1,705 | $56,947 |
| 2025-10-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 2,676 | $89,378 |
| 2025-10-24 | APPLIED OPTOELECTRONICS, INC. (AAOI) | *** Senior Vice President and North America General Manager | Sell | 614 | $20,508 |
Source: SEC Form 4 filings · as of 2026-09-10