Aldeyra Therapeutics
ALDX · NASDAQ
$0.7343+$0.0692 (+10.40%)TodayMarket closed ·
Prev close $0.6651
Who owns ALDX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 38.6% of ALDX’s shares.
- Knoll Capital Management, LLC9.1%
- AQR Capital Management, LLC6.2%
- Kingdon Capital Management, L.L.C.4.4%
- Vanguard Capital Management, LLC3.9%
- Next 6 largest institutions15.0%
- All other shareholders61.4%
| Holder | Shares | % of shares |
|---|---|---|
| Knoll Capital Management, LLC | 5.48M | 9.08% |
| AQR Capital Management, LLC | 3.75M | 6.22% |
| Kingdon Capital Management, L.L.C. | 2.65M | 4.40% |
| Vanguard Capital Management, LLC | 2.36M | 3.92% |
| D. E. Shaw & Co., L.P. | 1.94M | 3.22% |
| Brady (Todd C) | 1.66M | 2.75% |
| Marshall Wace LLP | 1.51M | 2.50% |
| 683 Capital Management LLC | 1.45M | 2.40% |
| Jane Street Capital, L.L.C. | 1.38M | 2.28% |
| Qube Research & Technologies Ltd | 1.13M | 1.87% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.78M | 2.96% |
| Vanguard Extended Market Index Fund | 573.67K | 0.95% |
| Vanguard Explorer Fund | 331.51K | 0.55% |
| Vanguard Variable Annuity - Small Company Growth | 308.15K | 0.51% |
| Aon Hewitt Demo Small Cap Value Fund | 303.69K | 0.50% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $418.45K (1 trade) of ALDX on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Miller-Rich Nancy | Award | 3.32K | — |
| Miller-Rich Nancy | Award | 70.00K | — |
| Clark William D | Award | 2.32K | — |
| Clark William D | Award | 70.00K | — |
| Walker Neal | Award | 3.32K | — |
| Walker Neal | Award | 70.00K | — |
| Bronstein Ben | Award | 4.98K | — |
| Bronstein Ben | Award | 5.31K | — |
| Bronstein Ben | Award | 70.00K | — |
| Phillips Gary M. | Award | 4.98K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 3.47M
- Days to cover
- 3.02
- % of shares outstanding
- 5.75%
- Average daily volume
- 1.15M
- Change since last report
- −3.7%
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