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Aldeyra Therapeutics
ALDX

125 hedge funds and large institutions have $226M invested in Aldeyra Therapeutics in 2025 Q1 according to their latest regulatory filings, with 23 funds opening new positions, 27 increasing their positions, 47 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

66% more call options, than puts

Call options by funds: $5.79M | Put options by funds: $3.49M

64% more first-time investments, than exits

New positions opened: 23 | Existing positions closed: 14

22% more capital invested

Capital invested by funds: $186M → $226M (+$40M)

6% more funds holding

Funds holding: 118 → 125 (+7)

1% more ownership

Funds ownership: 62.45% → 63.45% (+1%)

43% less repeat investments, than reductions

Existing positions increased: 27 | Existing positions reduced: 47

Holders
125
Holders Change
+7
Holders Change %
+5.93%
% of All Funds
1.68%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
23
Increased
27
Reduced
47
Closed
14
Calls
$5.79M
Puts
$3.49M
Net Calls
+$2.3M
Net Calls Change
+$857K

Top Buyers

1
KCM
Kingdon Capital Management
New York
+$4.6M
2
AAP
Ardsley Advisory Partners
Connecticut
+$3.55M
3
Invesco
Invesco
Georgia
+$2.79M
4
AQR Capital Management
AQR Capital Management
Connecticut
+$1.9M
5
N
Nuveen
North Carolina
+$1.29M

Top Sellers

1
ACM
ADAR1 Capital Management
Texas
-$2.58M
2
PI
PFG Investments
New York
-$1.75M
3
Raymond James Financial
Raymond James Financial
Florida
-$1.63M
4
KCM
Kennedy Capital Management
Missouri
-$1.39M
5
CM
Caption Management
Oklahoma
-$1.27M
Name Holding Trade Value Shares
Change 		Change in
Stake
California State Teachers Retirement System (CalSTRS)
101
California State Teachers Retirement System (CalSTRS)
California
$20.8K – – –
Royal Bank of Canada
102
Royal Bank of Canada
Ontario, Canada
$19K -$22.3K -3,771 -52%
TRCT
103
Tower Research Capital (TRC)
New York
$12.6K -$13.2K -2,227 -50%
AWM
104
Activest Wealth Management
Florida
$11.5K – – –
Nisa Investment Advisors
105
Nisa Investment Advisors
Missouri
$9.37K +$290 +49 +3%
AB
106
Amalgamated Bank
New York
$9K – – –
BIG
107
Brooklyn Investment Group
New York
$8.29K +$8.52K +1,442 New
SC
108
Stephens Consulting
Michigan
$5.75K – – –
Osaic Holdings
109
Osaic Holdings
Arizona
$5.06K +$1.77K +300 +52%
SCM
110
Sterling Capital Management
North Carolina
$4.47K -$3.91K -661 -46%
GI
111
GAMMA Investing
California
$3.93K +$4.04K +684 New
PA
112
PSI Advisors
Florida
$3.74K – – –
EWA
113
EverSource Wealth Advisors
Alabama
$2.28K +$2.26K +382 +2,547%
TC
114
Truvestments Capital
Florida
$1.52K – – –
SS
115
SBI Securities
Japan
$1.51K +$65 +11 +4%
TWD
116
True Wealth Design
Ohio
$1.4K +$1.32K +223 +1,115%
Comerica Bank
117
Comerica Bank
Texas
$1.37K – – –
CIAM
118
Caitong International Asset Management
Hong Kong
$983 +$1.01K +171 New
HWM
119
HighMark Wealth Management
Minnesota
$891 – – –
AAP
120
Arax Advisory Partners
Colorado
$719 -$337 -57 -31%
WWM
121
Wolff Wiese Magana
California
$650 – – –
PNC Financial Services Group
122
PNC Financial Services Group
Pennsylvania
$541 +$355 +60 +176%
PA
123
Parallel Advisors
California
$173 +$177 +30 New
US Bancorp
124
US Bancorp
Minnesota
$138 +$142 +24 New
TWC
125
TD Waterhouse Canada
Ontario, Canada
$82 – – –
2 3 4
5
6

ALDX Hedge Fund Activity: Q1 2025 in Review

125 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Aldeyra Therapeutics (ALDX) for Q1 2025, worth a combined $226M — up 22% from $186M a quarter earlier.

Buyers outnumbered sellers: 23 funds opened new ALDX positions and 14 closed out — a net gain of 9 holders — while 27 added to existing stakes and 47 trimmed.

The largest buyer was Kingdon Capital Management, opening a new position worth an estimated $4.6M. The largest seller was ADAR1 Capital Management, cutting an estimated $2.58M.

  • 125 institutional investors held Aldeyra Therapeutics (ALDX) as of Q1 2025, up from 118 in Q4 2024.
  • Funds reported $226M of Aldeyra Therapeutics stock for Q1 2025, up 22% quarter-over-quarter.
  • 23 funds opened new Aldeyra Therapeutics positions in Q1 2025 and 14 closed out, a net change of +9 holders.
  • The largest Aldeyra Therapeutics buyer in Q1 2025 was Kingdon Capital Management, an estimated $4.6M added.
  • The largest Aldeyra Therapeutics seller in Q1 2025 was ADAR1 Capital Management, an estimated $2.58M sold.

Based on aggregated 13F filings for Q1 2025.