13F Insight
DOSSIER · 13F Holders · Q4 2025Inflation hedgeYield
ALDX

ALDEYRA THERAPEUTICS INC

127 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 01438T106·127 13F holders·last filed Dec 31, 2025
Market cap
—
▼ 6.0%
vs prior quarter
13F value held
$83M
78.0% inst. owned
of float
Holders
127
-95 QoQ
filers reporting
Activity
+40 / −33
+983 added · −789 reduced
this quarter
Concentration
34.03%
Knoll Capital Management, LLC #1
top holder share
AI Holders Summary · Q4 2025

127 institutions reported ALDX in Q4 2025. Knoll Capital Management, LLC leads at 34.0% of the visible book. -95 net institutions QoQ — distribution reading.

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 202502
D. E. Shaw & Co., Inc.
CIK 0001009207
$8M1.6M0.00%Q4 202503
683 Capital Management, LLC
CIK 0001404574
$8M1.5M0.34%Q4 202504
BlackRock, Inc.
CIK 0002012383
$6M3.8M0.00%Q1 202605
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$5M2.8M0.00%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$4M2.4M0.00%Q1 202607
KINGDON CAPITAL MANAGEMENT, L.L.C.
CIK 0001000097
$4M2.2M0.40%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2M1.3M0.00%Q1 202609
ARDSLEY ADVISORY PARTNERS LP
CIK 0000900529
$2M1.3M0.27%Q1 202610
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$2M1.1M0.00%Q1 202611
STATE STREET CORP
CIK 0000093751
$2M1.1M0.00%Q1 202612
CITADEL ADVISORS LLC
CIK 0001423053
$2M353K0.00%Q4 202513
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$2M995K0.00%Q1 202614
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$1M863K0.00%Q1 202615
Vanguard Portfolio Management
CIK 0002100121
$1M808K0.00%Q1 202616
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$1M797K0.01%Q1 202617
Propel Bio Management, LLC
CIK 0001969764
$1M731K0.78%Q1 202618
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$1M624K0.00%Q1 202619
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$1M622K0.00%Q1 202620
GOLDMAN SACHS GROUP INC
CIK 0000886982
$917,917543K0.00%Q1 2026
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