Applied Optoelectronics, Inc. (AAOI) Insider Trading
Over the last 3 months, AAOI insiders made 0 open-market buys and 16 sales, a net sale of -$45.4M (SEC Form 4). Over the last 6 months, 241 institutions increased and 233 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
16
Net (3m)
-$45.4M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price -38%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 20, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Sell | 6,000 | $147.73 |
| Aug 12, 2026 | Murry Stefan J.officer: Chief Financial Officer | Sell | 4,000 | $144.79 |
| Aug 4, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Sell | 4,715 | $126.50 |
| Aug 4, 2026 | Lin Chih-Hsiang (Thompson)director, officer: President and CEO | Grant | 9,251 | — |
| Jul 23, 2026 | Lin Chih-Hsiang (Thompson)director, officer: President and CEO | Tax | 2,524 | $119.26 |
| Jul 23, 2026 | Lin Chih-Hsiang (Thompson)director, officer: President and CEO | Tax | 2,031 | $119.26 |
| Jul 23, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Tax | 609 | $119.26 |
| Jul 23, 2026 | Kuo David Cofficer: *** See Remarks | Tax | 407 | $119.26 |
| Jul 23, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Tax | 613 | $119.26 |
| Jul 23, 2026 | Murry Stefan J.officer: Chief Financial Officer | Tax | 770 | $119.26 |
| Jul 23, 2026 | Kuo David Cofficer: *** See Remarks | Tax | 516 | $119.26 |
| Jul 23, 2026 | Lin Chih-Hsiang (Thompson)director, officer: President and CEO | Tax | 2,332 | $119.26 |
| Jul 23, 2026 | Kuo David Cofficer: *** See Remarks | Tax | 1,869 | $119.26 |
| Jul 23, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Sell | 1,285 | $120.02 |
| Jul 23, 2026 | Kuo David Cofficer: *** See Remarks | Tax | 472 | $119.26 |
| Jul 23, 2026 | Murry Stefan J.officer: Chief Financial Officer | Tax | 2,971 | $119.26 |
| Jul 23, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Tax | 2,553 | $119.26 |
| Jul 23, 2026 | Murry Stefan J.officer: Chief Financial Officer | Tax | 679 | $119.26 |
| Jul 23, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Tax | 616 | $119.26 |
| Jul 23, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Tax | 773 | $119.26 |
| Jul 23, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Tax | 861 | $119.26 |
| Jul 23, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Tax | 2,674 | $119.26 |
| Jul 23, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Tax | 686 | $119.26 |
| Jul 23, 2026 | Murry Stefan J.officer: Chief Financial Officer | Tax | 988 | $119.26 |
| Jul 23, 2026 | Lin Chih-Hsiang (Thompson)director, officer: President and CEO | Tax | 8,753 | $119.26 |
| Jul 14, 2026 | Murry Stefan J.officer: Chief Financial Officer | Sell | 4,000 | $122.09 |
| Jun 18, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Sell | 6,000 | $171.89 |
| Jun 18, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Sell | 40,329 | $170.60 |
| Jun 16, 2026 | Chang Hung-Lun (Fred)officer: *** See Remarks | Tax | 27,297 | $172.78 |
| Jun 16, 2026 | Yeh Shu-Hua (Joshua)officer: *** See Remarks | Sell | 28,826 | $166.53 |
Source: AAOI SEC Form 4 filings, latest Aug 20, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their AAOI positions over the last 6 months (SEC Form 13F).
Increased
241
New positions
369
Reduced
233
Sold out
67
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 7.2M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 6.5M | Aug 7, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 6.0M | Aug 14, 2026 |
| Marex Group plc | Increased | 5.7M | Aug 14, 2026 |
| JANE STREET GROUP, LLC | Increased | 5.6M | May 12, 2026 |
| JANE STREET GROUP, LLC | Reduced | 4.8M | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 4.1M | May 15, 2026 |
| Invesco Ltd. | Increased | 3.4M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.4M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.1M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 2.9M | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 2.7M | Aug 13, 2026 |
| D. E. SHAW & CO., INC. | Increased | 2.6M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 2.5M | May 15, 2026 |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 2.3M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.