Applied Optoelectronics, Inc. (AAOI) ownership: Top institutional holder: BlackRock, Inc. ($608.40M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 7192329.00 | $608.40M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3061522.00 | $258.97M | 2026-03-31 |
| OBERWEIS ASSET MANAGEMENT INC/ | 2349969.00 | $198.78M | 2026-03-31 |
| JANE STREET GROUP, LLC | 2279318.00 | $192.81M | 2026-03-31 |
| D. E. Shaw & Co., Inc. | 2117157.00 | $179.09M | 2026-03-31 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2096400.00 | $177.33M | 2026-03-31 |
| VANGUARD GROUP INC | 4982660.00 | $173.70M | 2025-12-31 |
| Invesco Ltd. | 2014405.00 | $170.40M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-18 | |
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.