APPLIED OPTOELECTRONICS, INC. (AAOI) Insider Trading & SEC Filings
Last SEC filing
APPLIED OPTOELECTRONICS, INC. (AAOI) has filed 31 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-23. Insider sales over the same period: 21 transactions worth $87.45M. 7 Form 8-K material event filings were reported by AAOI in the last 90 days. 20 Form 144 notices of proposed sale were filed for AAOI stock. InsiderAlpha tracks every AAOI SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About APPLIED OPTOELECTRONICS, INC. (AAOI)
APPLIED OPTOELECTRONICS, INC. trades under the ticker AAOI. InsiderAlpha tracks 133 primary SEC Form 4 filings from 12 reporting insiders for AAOI since 2024, sourced directly from SEC EDGAR.
| Sector | Information Technology insider trading |
|---|---|
| SIC classification | Semiconductors & Related Devices (SIC 3674) |
| SEC CIK | 0001158114 |
90-Day SEC Filing Activity
| Insider sales (90d) | 21 ($87.45M) |
|---|---|
| Form 4 filings (90d) | 31 |
| Form 8-K filings (90d) | 7 |
| Form 144 notices (90d) | 20 |
| Latest Form 4 filing | 2026-07-23 |
Recent AAOI Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Stefan J. Murry | Chief Financial Officer | F - Tax withholding / forfeiture | 770 | $119.26 | $92K | SEC | |
| Chih-Hsiang (Thompson) Lin | President and CEO | F - Tax withholding / forfeiture | 2.3K | $119.26 | $278K | SEC | |
| David C. Kuo | *** See Remarks | F - Tax withholding / forfeiture | 407 | $119.26 | $49K | SEC | |
| Stefan J. Murry | Chief Financial Officer | F - Tax withholding / forfeiture | 988 | $119.26 | $118K | SEC | |
| Chih-Hsiang (Thompson) Lin | President and CEO | F - Tax withholding / forfeiture | 8.8K | $119.26 | $1.04M | SEC | |
| Hung-Lun (Fred) Chang | *** See Remarks | F - Tax withholding / forfeiture | 616 | $119.26 | $73K | SEC | |
| David C. Kuo | *** See Remarks | F - Tax withholding / forfeiture | 472 | $119.26 | $56K | SEC | |
| David C. Kuo | *** See Remarks | F - Tax withholding / forfeiture | 516 | $119.26 | $62K | SEC | |
| Stefan J. Murry | Chief Financial Officer | F - Tax withholding / forfeiture | 3.0K | $119.26 | $354K | SEC | |
| Stefan J. Murry | Chief Financial Officer | F - Tax withholding / forfeiture | 679 | $119.26 | $81K | SEC | |
| Hung-Lun (Fred) Chang | *** See Remarks | F - Tax withholding / forfeiture | 2.7K | $119.26 | $319K | SEC | |
| David C. Kuo | *** See Remarks | F - Tax withholding / forfeiture | 1.9K | $119.26 | $223K | SEC | |
| Hung-Lun (Fred) Chang | *** See Remarks | F - Tax withholding / forfeiture | 613 | $119.26 | $73K | SEC | |
| Hung-Lun (Fred) Chang | *** See Remarks | F - Tax withholding / forfeiture | 773 | $119.26 | $92K | SEC | |
| Chih-Hsiang (Thompson) Lin | President and CEO | F - Tax withholding / forfeiture | 2.5K | $119.26 | $301K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for APPLIED OPTOELECTRONICS, INC. (AAOI). Updated in real time as new filings are submitted to the SEC.
Most-Active AAOI Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Shu-Hua (Joshua) Yeh | 13 | $20.93M |
| Chih-Hsiang (Thompson) Lin | 13 | $53.21M |
| Stefan J. Murry | 12 | $24.68M |
| Hung-Lun (Fred) Chang | 11 | $29.64M |
| David C. Kuo | 9 | $15.51M |
Recent AAOI Form 8-K Material Events
- - Item 1.01, 2.03, 9.01 [SEC]
- - Item 1.01, 2.03, 9.01 [SEC]
- - Item 5.02, 5.07, 9.01 [SEC]
- - Item 1.01, 9.01 [SEC]
- - Item 1.01, 2.03, 9.01 [SEC]
Recent AAOI Form 144 Notices of Proposed Sale
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
Recent Insider Filings
- - David C. Kuo (*** See Remarks)
- - Stefan J. Murry (Chief Financial Officer)
- - Hung-Lun (Fred) Chang (*** See Remarks)
- - Chih-Hsiang (Thompson) Lin (President and CEO)
- - Shu-Hua (Joshua) Yeh (*** See Remarks)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in AAOI insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
AAOI Insider Trading - FAQ
- What is the latest insider trade for AAOI?
- APPLIED OPTOELECTRONICS, INC. (AAOI) had 31 insider filings in the last 90 days, with the most recent on 2026-07-23. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying AAOI stock?
- 0 insider purchases of AAOI were filed in the last 90 days.
- How many insiders are selling AAOI stock?
- 21 insider sales of AAOI were filed in the last 90 days, totaling $87.45M.
- Where can I see AAOI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks AAOI Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live AAOI dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.