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Of the 10 tracked institutions holding ALDX, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +5.9pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, ALDX (ALDEYRA THERAPEUTICS INC) is held with a combined value of $36.20M across 13,781,161 shares. The largest holder is VANGUARD GROUP INC with a position worth $19.16M. CITADEL ADVISORS LLC opened a new position in the most recent quarter. 7 funds increased their holdings. 2 funds reduced their position.
Total Institutional Value
$36.20M
Total Shares Held
13,781,161
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $19.16M | 0.00% | +3.0% |
| 2 | BlackRock, Inc. | $6.36M | 0.00% | -2.2% |
| 3 | AQR CAPITAL MANAGEMENT LLC | $4.78M | 0.00% | +130.6% |
| 4 | STATE STREET CORP | $1.90M | 0.00% | +2.4% |
| 5 | MILLENNIUM MANAGEMENT LLC | $1.68M | 0.00% | +2158.9% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $1.46M | 0.00% | +146.6% |
| 7 | CITADEL ADVISORS LLC | $450.12K | 0.00% | New |
| 8 | WELLINGTON MANAGEMENT GROUP LLP | $251.75K | 0.00% | -16.7% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $125.00K | 0.00% | +14.8% |
| 10 | FMR LLC | $27.89K | 0.00% | +136.9% |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ALDX with a position worth $19.16M, representing 0.00% of their portfolio. In total, 10 institutional investors hold ALDX with a combined value of $36.20M.
In the most recent quarter, 1 fund opened a new position in ALDX. Additionally, 7 increased their holdings and 2 reduced their positions.
Institutional investors hold $36.20M worth of ALDX stock across 10 positions. The largest institutional holder is VANGUARD GROUP INC with $19.16M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ALDX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ALDX positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$1.52
2026-07-24
YTD
-67.5%
6% of 52-week range
