ALDX Aldeyra Therapeutics
Aldeyra Therapeutics (ALDX) Institutional Ownership
What the institutions did with ALDX 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 |
|---|---|---|
| Knoll Capital Management, LLC | 5.5M | 14.9% |
| AQR CAPITAL MANAGEMENT LLC | 3.8M | 10.2% |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 2.7M | 7.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4M | 6.4% |
| D. E. Shaw & Co., Inc. | 1.9M | 5.3% |
| MARSHALL WACE, LLP | 1.5M | 4.1% |
| 683 Capital Management, LLC | 1.5M | 3.9% |
| JANE STREET GROUP, LLC | 1.4M | 3.7% |
| BlackRock, Inc. | 1.3M | 3.4% |
| Qube Research & Technologies Ltd | 1.1M | 3.1% |
| ACADIAN ASSET MANAGEMENT LLC | 1.1M | 2.9% |
| ARDSLEY ADVISORY PARTNERS LP | 975.0K | 2.7% |
| RENAISSANCE TECHNOLOGIES LLC | 882.0K | 2.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 794.9K | 2.2% |
| GOLDMAN SACHS GROUP INC | 725.4K | 2.0% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 646.8K | 1.8% |
| MORGAN STANLEY | 608.3K | 1.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 596.0K | 1.6% |
| DIMENSIONAL FUND ADVISORS LP | 529.1K | 1.4% |
| GSA CAPITAL PARTNERS LLP | 472.6K | 1.3% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 421.2K | 1.1% |
| CANTOR FITZGERALD, L. P. | 400.0K | 1.1% |
| CITADEL ADVISORS LLC | 379.1K | 1.0% |
| MILLENNIUM MANAGEMENT LLC | 360.4K | 1.0% |
| UBS Group AG | 301.9K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Reduced | 3.8M | 1.3M | -2.5M |
| MARSHALL WACE, LLP | Increased | 129.7K | 1.5M | +1.4M |
| Qube Research & Technologies Ltd | Increased | 87.1K | 1.1M | +1.0M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.8M | 3.8M | +921.7K |
| STATE STREET CORP | Reduced | 1.1M | 233.8K | -890.9K |
| Propel Bio Management, LLC | Sold Out | 730.6K | 0 | -730.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.3M | 596.0K | -655.6K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 995.2K | 360.4K | -634.9K |
| D. E. Shaw & Co., Inc. | Increased | 1.4M | 1.9M | +536.3K |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | Increased | 2.2M | 2.7M | +500.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | 0 | 421.2K | +421.2K |
| JANE STREET GROUP, LLC | Increased | 968.9K | 1.4M | +406.2K |
| CANTOR FITZGERALD, L. P. | New | 0 | 400.0K | +400.0K |
| HRT FINANCIAL LP | Sold Out | 286.4K | 0 | -286.4K |
| NORTHERN TRUST CORP | Reduced | 374.8K | 108.9K | -265.9K |
| UBS Group AG | Reduced | 537.6K | 301.9K | -235.6K |
| GSA CAPITAL PARTNERS LLP | Increased | 247.2K | 472.6K | +225.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 278.4K | 58.4K | -220.0K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 858.3K | 1.1M | +205.5K |
| GOLDMAN SACHS GROUP INC | Increased | 543.1K | 725.4K | +182.3K |
| BANK OF AMERICA CORP /DE/ | Reduced | 215.3K | 33.9K | -181.4K |
| XTX Topco Ltd | Increased | 75.2K | 254.8K | +179.6K |
| ExodusPoint Capital Management, LP | Sold Out | 167.6K | 0 | -167.6K |
| Point72 Asset Management, L.P. | New | 0 | 154.4K | +154.4K |
| Connor, Clark & Lunn Investment Management Ltd. | New | 0 | 154.3K | +154.3K |
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.