AAOI Applied Optoelectronics, Inc.
Applied Optoelectronics, Inc. (AAOI) Institutional Ownership
What the institutions did with AAOI last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 6.5M | 12.6% |
| Invesco Ltd. | 3.4M | 6.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.4M | 6.6% |
| Marex Group Ltd | 2.8M | 5.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.7M | 5.2% |
| UBS Group AG | 2.1M | 4.1% |
| OBERWEIS ASSET MANAGEMENT INC/ | 1.8M | 3.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7M | 3.3% |
| Value Aligned Research Advisors, LLC | 1.6M | 3.1% |
| GOLDMAN SACHS GROUP INC | 1.6M | 3.1% |
| STATE STREET CORP | 1.5M | 2.9% |
| Hood River Capital Management LLC | 1.4M | 2.7% |
| Clear Street Group Inc. | 1.2M | 2.4% |
| MORGAN STANLEY | 1.1M | 2.2% |
| JPMORGAN CHASE & CO | 1.1M | 2.1% |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 975.3K | 1.9% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 649.0K | 1.3% |
| JANE STREET GROUP, LLC | 563.6K | 1.1% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 504.2K | 1.0% |
| VANGUARD FIDUCIARY TRUST CO | 488.9K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 476.0K | 0.9% |
| NORTHERN TRUST CORP | 417.7K | 0.8% |
| Capula Management Ltd | 380.7K | 0.7% |
| GILDER GAGNON HOWE & CO LLC | 343.0K | 0.7% |
| DIMENSIONAL FUND ADVISORS LP | 309.9K | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Marex Group Ltd | Increased | 289.2K | 2.8M | +2.5M |
| D. E. Shaw & Co., Inc. | Reduced | 2.1M | 41.1K | -2.1M |
| JANE STREET GROUP, LLC | Reduced | 2.3M | 563.6K | -1.7M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 1.7M | 110.9K | -1.6M |
| Invesco Ltd. | Increased | 2.0M | 3.4M | +1.4M |
| Clear Street Group Inc. | New | 0 | 1.2M | +1.2M |
| UBS Group AG | Increased | 970.7K | 2.1M | +1.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.8M | 2.7M | +849.8K |
| BlackRock, Inc. | Reduced | 7.2M | 6.5M | -742.1K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Increased | 284.1K | 975.3K | +691.2K |
| T. Rowe Price Investment Management, Inc. | Reduced | 643.1K | 59.1K | -584.1K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 565.3K | 0 | -565.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 87.0K | 649.0K | +562.0K |
| OBERWEIS ASSET MANAGEMENT INC/ | Reduced | 2.3M | 1.8M | -558.8K |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | New | 0 | 504.2K | +504.2K |
| GOLDMAN SACHS GROUP INC | Increased | 1.1M | 1.6M | +501.7K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 733.7K | 235.1K | -498.6K |
| Driehaus Capital Management LLC | Reduced | 632.3K | 139.4K | -492.9K |
| MORGAN STANLEY | Increased | 727.6K | 1.1M | +387.6K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 442.8K | 60.7K | -382.1K |
| Squarepoint Ops LLC | Reduced | 495.8K | 114.4K | -381.4K |
| Capula Management Ltd | New | 0 | 380.7K | +380.7K |
| CITADEL ADVISORS LLC | Reduced | 421.0K | 72.8K | -348.2K |
| Artemis Investment Management LLP | Sold Out | 340.1K | 0 | -340.1K |
| Value Aligned Research Advisors, LLC | Increased | 1.3M | 1.6M | +327.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.