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.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest 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 plc | 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 plc | 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 |
| TWO SIGMA INVESTMENTS, LP | Reduced | 341.2K | 22.1K | -319.1K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.1M | 3.4M | +301.5K |
| Balyasny Asset Management L.P. | Reduced | 468.9K | 175.7K | -293.2K |
| NEUBERGER BERMAN GROUP LLC | Reduced | 517.3K | 242.6K | -274.7K |
| NEXT CENTURY GROWTH INVESTORS LLC | Reduced | 320.7K | 50.0K | -270.7K |
| Point72 Asset Management, L.P. | Sold Out | 265.5K | 0 | -265.5K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | 0 | 249.6K | +249.6K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 19.4K | 252.0K | +232.6K |
| Bridgewater Associates, LP | Sold Out | 223.9K | 0 | -223.9K |
| EMERALD ADVISERS, LLC | Reduced | 433.9K | 211.6K | -222.3K |
| Nuveen, LLC | Reduced | 382.4K | 181.4K | -201.0K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 51.6K | 243.2K | +191.6K |
| CANADA PENSION PLAN INVESTMENT BOARD | New | 0 | 188.5K | +188.5K |
| ROYCE & ASSOCIATES LP | Reduced | 221.1K | 38.0K | -183.0K |
| CloudAlpha Capital Management Limited/Hong Kong | Sold Out | 177.4K | 0 | -177.4K |
| Penn Capital Management Company, LLC | Sold Out | 176.5K | 0 | -176.5K |
| Anther Capital Ltd | Sold Out | 170.5K | 0 | -170.5K |
| NORTHERN TRUST CORP | Reduced | 583.5K | 417.7K | -165.8K |
| HRT FINANCIAL LP | Sold Out | 158.8K | 0 | -158.8K |
| Weiss Asset Management LP | New | 0 | 151.9K | +151.9K |
| STATE STREET CORP | Reduced | 1.6M | 1.5M | -146.7K |
| SG Americas Securities, LLC | Reduced | 195.9K | 54.8K | -141.1K |
| KENNEDY CAPITAL MANAGEMENT LLC | Reduced | 279.1K | 143.0K | -136.1K |
| EMERALD MUTUAL FUND ADVISERS TRUST | Reduced | 271.8K | 137.0K | -134.8K |
| Andar Capital Management HK Ltd | Sold Out | 134.0K | 0 | -134.0K |
| Oak Grove Capital LLC | Increased | 37.1K | 159.2K | +122.1K |
| Hood River Capital Management LLC | Increased | 1.3M | 1.4M | +117.0K |
| IMC-Chicago, LLC | Increased | 110.9K | 223.4K | +112.5K |
| GILDER GAGNON HOWE & CO LLC | Reduced | 455.4K | 343.0K | -112.4K |
| Verition Fund Management LLC | Reduced | 141.0K | 31.2K | -109.9K |
| NEW YORK STATE COMMON RETIREMENT FUND | Reduced | 158.4K | 53.5K | -104.9K |
| Ariose Capital Management Ltd | Sold Out | 104.0K | 0 | -104.0K |
| FRED ALGER MANAGEMENT, LLC | New | 0 | 101.8K | +101.8K |
| FEDERATED HERMES, INC. | Increased | 234 | 100.3K | +100.1K |
| CenterBook Partners LP | Sold Out | 96.3K | 0 | -96.3K |
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.