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 2025
Institutional positions in Aldeyra Therapeutics, Inc. as of Jun 30, 2025. 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
- 122
- −4 vs. Q1 2025
- Shares held
- 34.1M
- −3.76M (−9.9%) vs. Q1 2025
- Total value
- $130.8M
- −$84.8M (−39.3%) vs. Q1 2025
- New holders
- 20
- 47 more added
- Sold out
- 24
- 32 more reduced
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Aldeyra Therapeutics, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Susquehanna International Group, LLP | 231,766 | $887.7K | 0.00% | +166,458+254.9% | Added |
| ADAR1 Capital Management, LLC | 249,920 | $957.2K | 0.16% | +38,341+18.1% | Added |
| PFG Investments, LLC | 257,300 | $985.5K | 0.06% | +205,550+397.2% | Added |
| Woodstock Corp | 266,756 | $1.02M | 0.09% | +43,662+19.6% | Added |
| Deutsche Bank AG | 306,775 | $1.17M | 0.00% | −7,648−2.4% | Reduced |
| Wells Fargo & Company | 364,169 | $1.39M | 0.00% | −28,363−7.2% | Reduced |
| Northern Trust Corp | 403,951 | $1.55M | 0.00% | +14,369+3.7% | Added |
| D. E. Shaw & Co., Inc. | 487,672 | $1.87M | 0.00% | +336,030+221.6% | Added |
| Jacobs Levy Equity Management, Inc | 634,156 | $2.43M | 0.01% | +596,172+1,569.5% | Added |
| Kennedy Capital Management, Inc. | 686,968 | $2.63M | 0.06% | −546,446−44.3% | Reduced |
| Dimensional Fund Advisors LP | 718,713 | $2.75M | 0.00% | +48,863+7.3% | Added |
| Morgan Stanley | 775,036 | $2.97M | 0.00% | +219,977+39.6% | Added |
| State Street Corp | 1,056,585 | $4.05M | 0.00% | +35,204+3.4% | Added |
| 683 Capital Management, LLC | 1,080,000 | $4.14M | 0.42% | +604,000+126.9% | Added |
| Geode Capital Management, LLC | 1,146,597 | $4.39M | 0.00% | +8,769+0.8% | Added |
| Kingdon Capital Management, L.L.C. | 1,331,791 | $5.10M | 0.98% | +552,791+71.0% | Added |
| AQR Capital Management LLC | 1,473,812 | $5.64M | 0.00% | +1,081,257+275.4% | Added |
| Ardsley Advisory Partners LP | 2,050,000 | $7.85M | 1.28% | +300,000+17.1% | Added |
| Vanguard Group Inc | 3,501,593 | $13.4M | 0.00% | −216,425−5.8% | Reduced |
| BlackRock, Inc. | 3,852,101 | $14.8M | 0.00% | +116,063+3.1% | Added |
| Perceptive Advisors LLC | 4,051,631 | $15.5M | 0.58% | −5,224,220−56.3% | Reduced |
| Knoll Capital Management, LLC | 5,475,516 | $21.0M | 14.91% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −551,091−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −158,117−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −117,475−100.0% | Sold out |
| Hennion & Walsh Asset Management, Inc. | 0 | $0 | 0.00% | −69,442−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −43,803−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −37,505−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −32,346−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −24,406−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −23,332−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −22,912−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −17,818−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −16,233−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −14,935−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −12,028−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −40,953−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −11,543−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −11,397−100.0% | Sold out |
| CIBC World Markets Corp | 0 | $0 | 0.00% | −11,054−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −10,328−100.0% | Sold out |
| PSI Advisors, LLC | 0 | $0 | 0.00% | −650−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −238−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −125−100.0% | Sold out |
| Wolff Wiese Magana LLC | 0 | $0 | 0.00% | −113−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −30−100.0% | Sold out |