Aldeyra Therapeutics, Inc.
ALDX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001341235
No open-market purchases or sales by Aldeyra Therapeutics, Inc. insiders were filed in the last 90 days; 107 institutions reported holding it in 13F filings for Q2 2026, worth $77.7M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Aldeyra Therapeutics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 107
- −19 vs. Q1 2026
- Shares held
- 36.5M
- −705.9K (−1.9%) vs. Q1 2026
- Total value
- $77.7M
- +$14.6M (+23.1%) vs. Q1 2026
- New holders
- 19
- 31 more added
- Sold out
- 38
- 43 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 107 | $77.7M |
| Q1 2026 | 128 | $63.3M |
| Q4 2025 | 136 | $201.8M |
| Q3 2025 | 131 | $204.2M |
| Q2 2025 | 122 | $130.8M |
| Q1 2025 | 126 | $215.5M |
| Q4 2024 | 119 | $185.6M |
| Q3 2024 | 112 | $196.4M |
| Q2 2024 | 103 | $116.9M |
| Q1 2024 | 101 | $115.8M |
| Q4 2023 | 105 | $123.3M |
| Q3 2023 | 120 | $252.3M |
| Q2 2023 | 119 | $327.5M |
| Q1 2023 | 109 | $353.4M |
| Q4 2022 | 96 | $237.9M |
| Q3 2022 | 89 | $197.4M |
| Q2 2022 | 95 | $147.5M |
| Q1 2022 | 111 | $171.8M |
| Q4 2021 | 115 | $146.7M |
| Q3 2021 | 117 | $348.9M |
| Q2 2021 | 136 | $512.8M |
| Q1 2021 | 108 | $376.7M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Aldeyra Therapeutics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| 683 Capital Management, LLC | 1,450,000 | $3.09M | 0.28% | −50,000−3.3% | Reduced |
| Marshall Wace, LLP | 1,506,974 | $3.21M | 0.00% | +1,377,281+1,062.0% | Added |
| D. E. Shaw & Co., Inc. | 1,940,338 | $4.13M | 0.00% | +536,348+38.2% | Added |
| Vanguard Capital Management LLC | 2,361,796 | $5.03M | 0.00% | −1,946−0.1% | Reduced |
| Kingdon Capital Management, L.L.C. | 2,652,315 | $5.65M | 0.76% | +500,000+23.2% | Added |
| AQR Capital Management LLC | 3,751,558 | $7.99M | 0.00% | +921,683+32.6% | Added |
| Knoll Capital Management, LLC | 5,475,516 | $11.7M | 5.59% | 00.0% | Unchanged |
| Propel Bio Management, LLC | 0 | $0 | 0.00% | −730,606−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −286,444−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −68,140−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −167,604−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −148,962−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −139,029−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −136,746−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −90,964−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −68,200−100.0% | Sold out |
| Flow Traders U.S. LLC | 0 | $0 | 0.00% | −55,521−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −50,271−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −34,745−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −25,815−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −21,266−100.0% | Sold out |
| Police & Firemen's Retirement System of New Jersey | 0 | $0 | 0.00% | −18,181−100.0% | Sold out |
| Buckingham Strategic Partners | 0 | $0 | 0.00% | −17,026−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −16,155−100.0% | Sold out |
| Krilogy Financial LLC | 0 | $0 | 0.00% | −14,459−100.0% | Sold out |
| Abel Hall, LLC | 0 | $0 | 0.00% | −15,142−100.0% | Sold out |
| Capital Advisors Wealth Management, LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −14,958−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −14,754−100.0% | Sold out |
| CIBC Bancorp USA Inc. | 0 | $0 | 0.00% | −13,237−100.0% | Sold out |
| Caerus Investment Advisors, LLC | 0 | $0 | 0.00% | −11,455−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −11,325−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −9,598−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −4,940−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −3,846−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −3,795−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −3,208−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −2,962−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −2,937−100.0% | Sold out |
| Sterling Capital Management LLC | 0 | $0 | 0.00% | −621−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −449−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −185−100.0% | Sold out |
| Versant Capital Management, Inc | 0 | $0 | 0.00% | −139−100.0% | Sold out |
| Basecamp Wealth Advisors LLC | 0 | $0 | 0.00% | −109−100.0% | Sold out |
| JPL Wealth Management, LLC | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| U.S. Capital Wealth Advisors, LLC | – | – | – | – | Not filed |