GBAF Logo
Global Banking & Finance Awards® 2026 Nominations open, free to enter Nominate now →
A

Aldeyra Therapeutics ALDX · USD

Health Care · US listing · 🇺🇸 United States

Compare

0.64

+0.36%

Close of 9 Nov 2026, in USD

Search any instrument

Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
Knoll Capital Management, LLC5.5m9.10%—30 Jun 2025
Perceptive Advisors LLC4.1m6.73%−824.2k30 Jun 2025
BlackRock Institutional Trust Company, N.A.3.5m5.88%+127.1k30 Jun 2025
The Vanguard Group, Inc.3.5m5.82%−216.4k30 Jun 2025
Ardsley Advisory Partners LP2.1m3.41%+300k30 Jun 2025
AQR Capital Management, LLC1.5m2.45%+1.1m30 Jun 2025
Kingdon Capital Management, L.L.C.1.3m2.21%+552.8k30 Jun 2025
Geode Capital Management, L.L.C.1.1m1.91%+8.8k30 Jun 2025
683 Capital Management LLC1.1m1.80%+604k30 Jun 2025
State Street Investment Management (US)1.1m1.76%+35.2k30 Jun 2025
Dimensional Fund Advisors, L.P.718.7k1.19%+48.9k30 Jun 2025
Kennedy Capital Management LLC687k1.14%−546.4k30 Jun 2025
Jacobs Levy Equity Management, Inc.634.2k1.05%+596.2k30 Jun 2025
D. E. Shaw & Co., L.P.487.7k0.81%+336k30 Jun 2025
Morgan Stanley & Co. LLC474.6k0.79%+242.6k30 Jun 2025

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
19 Mar 2026 ↗DOUGLAS RICHARDDirectorPurchase70k1.40$98,000
18 Mar 2026 ↗Alfieri MichaelPrincipal Financial OfficerPurchase5k1.42$7,100

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

3.2m

-8.2% on the period before. 1.3 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

23.4%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 30 Sept 20265,044 shares
  • 29 Sept 20263,850 shares
  • 28 Sept 20263,850 shares
  • 25 Sept 20264,178 shares
  • 24 Sept 20263,850 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.