DOSSIER · 13F Holders · Q4 2025
ALDX

ALDEYRA THERAPEUTICS INC

112 institutions still hold ALDEYRA THERAPEUTICS INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 01438T106·112 13F holders·last filed Dec 31, 2025
Market cap
13F value held
$89M
visible holders
Holders
112
filers reporting
Concentration
31.89%
Knoll Capital Management, LLC #1
top holder share
AI Holders Summary · Q4 2025

112 institutions reported ALDX in Q4 2025. Knoll Capital Management, LLC leads at 31.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Knoll Capital Management, LLC
CIK 0001325083
$28M5.5M13.01%Q4 2025
02
D. E. Shaw & Co., Inc.
CIK 0001009207
$8M1.6M0.00%Q4 2025
03
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$8M3.8M0.00%Q2 2026
04
683 Capital Management, LLC
CIK 0001404574
$8M1.5M0.34%Q4 2025
05
KINGDON CAPITAL MANAGEMENT, L.L.C.
CIK 0001000097
$6M2.7M0.58%Q2 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$5M2.4M0.00%Q2 2026
07
MARSHALL WACE, LLP
CIK 0001318757
$3M1.5M0.00%Q2 2026
08
ARDSLEY ADVISORY PARTNERS LP
CIK 0000900529
$3M1.3M0.28%Q2 2026
09
BlackRock, Inc.
CIK 0002012383
$3M1.3M0.00%Q2 2026
10
Qube Research & Technologies Ltd
CIK 0001729829
$2M1.1M0.00%Q2 2026
11
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$2M1.1M0.00%Q1 2026
12
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$2M882K0.00%Q2 2026
13
Vanguard Portfolio Management
CIK 0002100121· Index
$2M795K0.00%Q2 2026
14
GOLDMAN SACHS GROUP INC
CIK 0000886982
$2M725K0.00%Q2 2026
15
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$1M858K0.00%Q1 2026
16
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$1M797K0.01%Q1 2026
17
MORGAN STANLEY
CIK 0000895421
$1M608K0.00%Q2 2026
18
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$1M596K0.00%Q2 2026
19
CITADEL ADVISORS LLC
CIK 0001423053
$1M543K0.00%Q2 2026
20
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$1M529K0.00%Q2 2026
Page 1 of 6
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Insiders at ALDEYRA THERAPEUTICS INC
Deptula-Hicks Darlene MBronstein BenWalker NealClark William DBrady Todd CDouglas RichardAlfieri MichaelMachatha Stephen