Jane Street
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Jane Street’s Aldeyra Therapeutics ALDX Stock Holding History

Jane Street’s Portfolio ALDX Stock Details ALDX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.64M Buy
968,891
+665,039
+219% +$2.91M ﹤0.01% 5465
2025
Q4 		$1.57M Buy
303,852
+52,334
+21% +$269K ﹤0.01% 5256
2025
Q3 		$1.31M Buy
251,518
+154,835
+160% +$807K ﹤0.01% 5751
2025
Q2 		$370K Sell
96,683
-81,427
-46% -$211K ﹤0.01% 7474
2025
Q1 		$1.02M Buy
+178,110
New +$1.05M ﹤0.01% 5522
2024
Q4 		– Sell
-23,731
Closed -$128K – 9306
2024
Q3 		$128K Sell
23,731
-69,415
-75% -$330K ﹤0.01% 8889
2024
Q2 		$308K Buy
+93,146
New +$365K ﹤0.01% 7758
2024
Q1 		– Sell
-68,327
Closed -$240K – 9112
2023
Q4 		$240K Sell
68,327
-64,106
-48% -$198K ﹤0.01% 7958
2023
Q3 		$885K Buy
132,433
+77,785
+142% +$577K ﹤0.01% 5370
2023
Q2 		$458K Sell
54,648
-214,882
-80% -$2.12M ﹤0.01% 6444
2023
Q1 		$2.68M Buy
269,530
+206,348
+327% +$1.46M ﹤0.01% 3338
2022
Q4 		$440K Buy
+63,182
New +$361K ﹤0.01% 6357
2022
Q2 		– Sell
-66,398
Closed -$295K – 9561
2022
Q1 		$295K Sell
66,398
-80,858
-55% -$322K ﹤0.01% 8430
2021
Q4 		$589K Buy
147,256
+93,774
+175% +$715K ﹤0.01% 6950
2021
Q3 		$469K Buy
53,482
+40,240
+304% +$369K ﹤0.01% 7394
2021
Q2 		$150K Sell
13,242
-6,203
-32% -$74.6K ﹤0.01% 9047
2021
Q1 		$231K Sell
19,445
-61,115
-76% -$704K ﹤0.01% 8071
2020
Q4 		$553K Buy
80,560
+63,051
+360% +$443K ﹤0.01% 5580
2020
Q3 		$130K Sell
17,509
-114,081
-87% -$737K ﹤0.01% 6662
2020
Q2 		$549K Buy
+131,590
New +$481K ﹤0.01% 4939
2017
Q4 		– Sell
-10,961
Closed -$79K – 4513
2017
Q3 		$79K Buy
+10,961
New +$57.2K ﹤0.01% 4297

Other funds holding ALDX

KCM
Knoll Capital Management Miami, Florida $180M AUM 66.11% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
KCM
Kingdon Capital Management New York $911M AUM 51.11% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street's ALDX Position: Q1 2026 in Review

Jane Street increased its Aldeyra Therapeutics (ALDX) stake by 219% in Q1 2026, buying an estimated $2.91M and bringing the position to 968,891 shares worth $1.64M. The position accounts for ﹤0.01% of the portfolio, ranked #5465.

Jane Street first reported a position in ALDX in Q3 2017 and has held it in 21 quarters since. The position peaked at $2.68M in Q1 2023. 126 funds tracked by Wall St. Rank hold ALDX as of Q1 2026.

  • Jane Street held 968,891 shares of Aldeyra Therapeutics worth $1.64M as of Q1 2026.
  • Jane Street bought 665,039 Aldeyra Therapeutics shares in Q1 2026, an estimated $2.91M.
  • Aldeyra Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #5465 holding.
  • Jane Street first reported a position in Aldeyra Therapeutics in Q3 2017 and has held it in 21 quarters since.
  • Jane Street's Aldeyra Therapeutics position peaked at $2.68M in Q1 2023.
  • 126 funds tracked by Wall St. Rank held Aldeyra Therapeutics as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.