Applied Optoelectronics
AAOI · NASDAQ
$76.74−$1.46 (−1.87%)TodayMarket closed ·
Prev close $78.20
Who owns AAOI
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 36.5% of AAOI’s shares.
- BlackRock Institutional Trust Company, N.A.7.0%
- Marex Securities Products Inc5.6%
- Vanguard Capital Management, LLC4.2%
- Invesco Advisers, Inc.3.9%
- Next 6 largest institutions15.9%
- All other shareholders63.5%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 5.58M | 6.95% |
| Marex Securities Products Inc | 4.49M | 5.59% |
| Vanguard Capital Management, LLC | 3.36M | 4.19% |
| Invesco Advisers, Inc. | 3.15M | 3.93% |
| Marex Group plc | 2.83M | 3.53% |
| Vanguard Portfolio Management, LLC | 2.65M | 3.30% |
| UBS Financial Services, Inc. | 1.93M | 2.40% |
| Lin Chih-Hsiang Thompson | 1.86M | 2.32% |
| Oberweis Asset Management, Inc. | 1.79M | 2.23% |
| Geode Capital Management, L.L.C. | 1.67M | 2.08% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 2.43M | 3.03% |
| iShares AI Innovation and Tech Active ETF | 1.60M | 2.00% |
| Invesco Small Cap Value Fund | 1.37M | 1.71% |
| Invesco Value Opportunities Fund | 1.10M | 1.37% |
| Oberweis Small-Cap Opportunities Fund | 1.07M | 1.33% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $94.61M (28 trades) of AAOI on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Murry Stefan J. | Sale | 4.00K | $411.48K |
| Yeh Shu-Hua (Joshua) | Sale | 6.00K | $720.18K |
| BLACK RICHARD B | Gift | 2.20K | — |
| Murry Stefan J. | Sale | 4.00K | $421.32K |
| Chang Hung-Lun (Fred) | Sale | 32.17K | $3.55M |
| Yeh Shu-Hua (Joshua) | Sale | 6.00K | $886.38K |
| Murry Stefan J. | Sale | 4.00K | $579.16K |
| Yeh Shu-Hua (Joshua) | Sale | 4.71K | $596.45K |
| Lin Chih-Hsiang (Thompson) | Award | 9.25K | — |
| Kuo David C | Tax withholding | 407 | $48.54K |
Short interest
Settled Sep 30, 2026
- Shares short
- 13.87M
- Days to cover
- 1.96
- % of shares outstanding
- 17.29%
- Average daily volume
- 7.08M
- Change since last report
- +12.7%
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