ALDX Aldeyra Therapeutics, Inc.: institutional ownership and insider trading
113 funds reported holding $99.5M of Aldeyra Therapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net sold $2.16M, with 18 new positions and 38 funds selling out; over the last 12 months insiders bought $523K and sold $0 on the open market.
Famous investors holding ALDX
- D. E. Shaw (D. E. Shaw & Co.): $4.13M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.88M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.16M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $768K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $272K, 0.0% of the portfolio
Largest institutional holders of ALDX
- VANGUARD GROUP INC — $19.2M
- Knoll Capital Management, LLC — $11.7M
- AQR CAPITAL MANAGEMENT LLC — $7.99M
- KINGDON CAPITAL MANAGEMENT, L.L.C. — $5.65M
- VANGUARD CAPITAL MANAGEMENT LLC — $5.03M
- D. E. Shaw & Co., Inc. — $4.13M
- MARSHALL WACE, LLP — $3.21M
- 683 Capital Management, LLC — $3.09M
- JANE STREET GROUP, LLC — $2.97M
- ARDSLEY ADVISORY PARTNERS LP — $2.72M
Recent ALDX insider trades
- Jun 3, 2026: Brady Todd C bought 250,000 shares ($418K)
- Mar 19, 2026: Douglas Richard bought 70,000 shares ($98.0K)
- Mar 18, 2026: Alfieri Michael bought 5,000 shares ($7.10K)
- Aug 13, 2025: Alfieri Michael bought 2,500 shares ($13.3K)
5%+ owners
- AQR Capital Management, LLC: 6.2% (Schedule 13G, filed Aug 12, 2026)