Aldeyra Therapeutics, Inc. (ALDX) ownership: Top institutional holder: VANGUARD GROUP INC ($19.16M). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 3698682.00 | $19.16M | 2025-12-31 |
| Knoll Capital Management, LLC | 5475516.00 | $9.25M | 2026-03-31 |
| BlackRock, Inc. | 3763887.00 | $6.36M | 2026-03-31 |
| AQR CAPITAL MANAGEMENT LLC | 2829875.00 | $4.78M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2363742.00 | $3.99M | 2026-03-31 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 2152315.00 | $3.64M | 2026-03-31 |
| 683 Capital Management, LLC | 1500000.00 | $2.53M | 2026-03-31 |
| D. E. Shaw & Co., Inc. | 1403990.00 | $2.37M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.