Group One Trading
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Group One Trading’s Aldeyra Therapeutics ALDX Stock Holding History

Group One Trading’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 		$56.3K Sell
33,300
-95,100
-74% -$417K ﹤0.01% 5179
2025
Q4 		$665K Buy
128,400
+106,900
+497% +$549K ﹤0.01% 3239
2025
Q3 		$112K Buy
21,500
+14,800
+221% +$77.2K ﹤0.01% 5226
2025
Q2 		$25.7K Sell
6,700
-151,100
-96% -$391K ﹤0.01% 6099
2025
Q1 		$907K Sell
157,800
-44,200
-22% -$261K ﹤0.01% 2543
2024
Q4 		$1.01M Buy
202,000
+174,700
+640% +$896K ﹤0.01% 2566
2024
Q3 		$147K Buy
27,300
+20,700
+314% +$98.5K ﹤0.01% 3880
2024
Q2 		$21.8K Sell
6,600
-5,700
-46% -$22.3K ﹤0.01% 5158
2024
Q1 		$40.2K Buy
12,300
+2,300
+23% +$7.57K ﹤0.01% 4890
2023
Q4 		$35.1K Sell
10,000
-10,800
-52% -$33.3K ﹤0.01% 5334
2023
Q3 		$139K Sell
20,800
-19,000
-48% -$141K ﹤0.01% 4133
2023
Q2 		$334K Sell
39,800
-68,300
-63% -$673K ﹤0.01% 3428
2023
Q1 		$1.07M Buy
108,100
+28,000
+35% +$198K ﹤0.01% 2076
2022
Q4 		$557K Buy
80,100
+80,000
+80,000% +$457K ﹤0.01% 2946
2022
Q3 		$1K Sell
100
-1,600
-94% -$9.6K ﹤0.01% 7259
2022
Q2 		$7K Sell
1,700
-100,100
-98% -$344K ﹤0.01% 6919
2022
Q1 		$453K Sell
101,800
-25,800
-20% -$103K ﹤0.01% 3915
2021
Q4 		$510K Buy
127,600
+94,300
+283% +$719K ﹤0.01% 4108
2021
Q3 		$292K Buy
33,300
+21,400
+180% +$196K ﹤0.01% 4778
2021
Q2 		$135K Buy
11,900
+6,900
+138% +$83K ﹤0.01% 5645
2021
Q1 		$59K Buy
5,000
+2,500
+100% +$28.8K ﹤0.01% 6100
2020
Q4 		$17K Buy
2,500
+1,100
+79% +$7.72K ﹤0.01% 5587
2020
Q3 		$10K Buy
+1,400
New +$9.04K ﹤0.01% 5414
2020
Q1 		– Sell
-9,400
Closed -$55K – 5185
2019
Q4 		$55K Sell
9,400
-7,500
-44% -$43.3K ﹤0.01% 3963
2019
Q3 		$89K Buy
16,900
+7,300
+76% +$39.3K ﹤0.01% 3636
2019
Q2 		$58K Sell
9,600
-44,900
-82% -$338K ﹤0.01% 3690
2019
Q1 		$492K Buy
+54,500
New +$463K 0.01% 1953
2018
Q4 		– Sell
-1,200
Closed -$17K – 4815
2018
Q3 		$17K Buy
+1,200
New +$9.74K ﹤0.01% 4434

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

Group One Trading's ALDX Position: Q1 2026 in Review

Group One Trading sold out of Aldeyra Therapeutics (ALDX) in Q1 2026, closing a stake of 83,449 shares — an estimated $366K sold.

Group One Trading first reported a position in ALDX in Q2 2018 and held it in 27 quarters. The position peaked at $1.02M in Q4 2024. 126 funds tracked by Wall St. Rank hold ALDX as of Q1 2026.

  • Group One Trading reported no remaining Aldeyra Therapeutics position as of Q1 2026 after selling out during the quarter.
  • Group One Trading sold 83,449 Aldeyra Therapeutics shares in Q1 2026, an estimated $366K.
  • Group One Trading first reported a position in Aldeyra Therapeutics in Q2 2018 and held it in 27 quarters.
  • Group One Trading's Aldeyra Therapeutics position peaked at $1.02M in Q4 2024.
  • 126 funds tracked by Wall St. Rank held Aldeyra Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.