Institutional Ownership
Aldeyra Therapeutics Inc
CUSIP 01438T106COMALDXQ1 2026
13D / 13G Filings
29
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
19.4%
Max % of class reported
Institutional Holders
119
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
29 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Perceptive Advisors LLC | 13G/A | 7.0% | 4.19M | SEC |
| 2 | Nov 14, 2025 | Perceptive Advisors LLC | 13G/A | 8.7% | 5.22M | SEC |
| 3 | Aug 14, 2025 | Perceptive Advisors LLC | 13G/A | 6.8% | 4.05M | SEC |
| 4 | Apr 7, 2025 | Perceptive Advisors LLC | 13G/A | 8.2% | 4.88M | SEC |
| 5 | Nov 14, 2024 | Perceptive Advisors LLC | 13G/A | 15.6% | 9.28M | SEC |
| 6 | Feb 14, 2024 | Perceptive Advisors LLC | 13G/A | 14.6% | 8.59M | SEC |
| 7 | Feb 13, 2024 | Vanguard Group Inc | 13G | 6.7% | 3.93M | SEC |
| 8 | Jan 29, 2024 | Blackrock Inc. | 13G | 5.8% | 3.43M | SEC |
| 9 | Oct 19, 2023 | Perceptive Advisors LLC | 13G/A | 14.7% | 8.59M | SEC |
| 10 | Oct 4, 2023 | Knoll Capital Management, LLC | 13G | 6.1% | 3.60M | SEC |
19 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Aldeyra Therapeutics Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Knoll Capital Management, LLC | 5.48M | $9.25M |
| 2 | Blackrock, Inc. | 3.76M | $6.36M |
| 3 | Aqr Capital Management LLC | 2.83M | $4.78M |
| 4 | Kingdon Capital Management, L.L.C. | 2.15M | $3.64M |
| 5 | 683 Capital Management, LLC | 1.50M | $2.53M |
| 6 | D. E. Shaw & Co., Inc. | 1.40M | $2.37M |
| 7 | Geode Capital Management, LLC | 1.25M | $2.12M |
| 8 | State Street Corp | 1.12M | $1.90M |
| 9 | Millennium Management LLC | 995.2K | $1.68M |
| 10 | Jane Street Group, LLC | 968.9K | $1.64M |