APPLIED OPTOELECTRONICS, INC. (AAOI) Stock
6 of the hedge funds AlphaScala tracks reported AAOI in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Marshall Wace's at $26.87M. Company insiders reported 0 open-market buys and 7 sales on SEC Form 4 in the 90 days to Oct 21, 2026.
Which hedge funds own AAOI?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Marshall Wace | 181K | $26.87M | +1% |
| Millennium Management Israel Englander | 126K | $18.72M | +31% |
| Citadel Ken Griffin | 73K | $10.79M | -83% |
| D.E. Shaw David Shaw | 41K | $6.08M | -98% |
| Maverick Capital Lee Ainslie | 4K | $620.5K | -74% |
| Blackstone | 2K | $360.5K | NEW |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are APPLIED OPTOELECTRONICS, INC. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Oct 12, 26 | Murry Stefan J. | Chief Financial Officer | SELL | 4.0K | $411K |
| Oct 5, 26 | Yeh Shu-Hua (Joshua) | *** See Remarks | SELL | 6.0K | $720K |
| Sep 10, 26 | Murry Stefan J. | Chief Financial Officer | SELL | 4.0K | $421K |
| Sep 8, 26 | Chang Hung-Lun (Fred) | *** See Remarks | SELL | 32.2K | $3.5M |
| Aug 18, 26 | Yeh Shu-Hua (Joshua) | *** See Remarks | SELL | 6.0K | $886K |
| Aug 10, 26 | Murry Stefan J. | Chief Financial Officer | SELL | 4.0K | $579K |
| Aug 4, 26 | Yeh Shu-Hua (Joshua) | *** See Remarks | SELL | 4.7K | $596K |
| Jul 21, 26 | Yeh Shu-Hua (Joshua) | *** See Remarks | SELL | 1.3K | $154K |
SEC Form 4 filings as of Oct 21, 2026
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Powered by TradingViewWhat does APPLIED OPTOELECTRONICS, INC. do?
Applied Optoelectronics, Inc. designs, manufactures, and sells fiber-optic networking products, including optical modules, lasers, transceivers, photodiodes, subassemblies, and related equipment. The company specializes in high-speed optical transceivers such as 400G and 800G models for AI data centers, ultra-high-power pump lasers for silicon photonics and co-packaged optics, as well as amplifiers and turn-key systems for cable television (CATV), broadband fiber-to-the-home (FTTH), telecom, and point-to-point communications. Its QuantumLink HFC Remote Management software enhances broadband network operations with AI analytics, alarms, and mapping features. Applied Optoelectronics, Inc. serves internet data center operators, cable television providers, telecom equipment manufacturers, and internet service providers through direct and indirect sales channels. Operating in the electronic technology and semiconductors sector, it supports critical infrastructure for hyperscale AI growth and high-bandwidth networks. Founded in 1997 and headquartered in Sugar Land, Texas, the company focuses on advanced optical communications solutions.