Group One Trading
ALEC icon

Group One Trading’s Alector ALEC Stock Holding History

Group One Trading’s Portfolio ALEC Stock Details ALEC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-100
Closed -$296 – 8031
2025
Q3 		$296 Hold
100
– – ﹤0.01% 8192
2025
Q2 		$140 Sell
100
-100
-50% -$125 ﹤0.01% 7769
2025
Q1 		$246 Sell
200
-9,800
-98% -$16K ﹤0.01% 7356
2024
Q4 		$18.9K Buy
+10,000
New +$37.6K ﹤0.01% 5727
2024
Q1 		– Sell
-3,200
Closed -$25.5K – 6956
2023
Q4 		$25.5K Buy
3,200
+1,800
+129% +$10.7K ﹤0.01% 5561
2023
Q3 		$9.07K Buy
+1,400
New +$9.06K ﹤0.01% 6388
2023
Q2 		– Sell
-100
Closed -$619 – 7601
2023
Q1 		$619 Hold
100
– – ﹤0.01% 6874
2022
Q4 		$923 Sell
100
-2,400
-96% -$20.9K ﹤0.01% 6850
2022
Q3 		$24K Sell
2,500
-1,200
-32% -$13K ﹤0.01% 5938
2022
Q2 		$38K Sell
3,700
-60,100
-94% -$599K ﹤0.01% 5782
2022
Q1 		$909K Buy
63,800
+60,100
+1,624% +$951K ﹤0.01% 3178
2021
Q4 		$76K Sell
3,700
-1,700
-31% -$38.3K ﹤0.01% 5965
2021
Q3 		$123K Sell
5,400
-40,200
-88% -$1.13M ﹤0.01% 5698
2021
Q2 		$950K Buy
45,600
+44,600
+4,460% +$841K ﹤0.01% 3465
2021
Q1 		$20K Buy
1,000
+500
+100% +$8.96K ﹤0.01% 6756
2020
Q4 		$8K Buy
500
+300
+150% +$3.73K ﹤0.01% 5858
2020
Q3 		$2K Buy
200
+100
+100% +$1.62K ﹤0.01% 5799
2020
Q2 		$2K Buy
+100
New +$2.76K ﹤0.01% 5537

Other funds holding ALEC

TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
FCMI
Foresite Capital Management IV Larkspur, California $237M AUM 107.53% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
MC
Merck & Co Kenilworth, New Jersey $349M AUM 146.07% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return

Group One Trading's ALEC Position: Q4 2025 in Review

Group One Trading sold out of Alector (ALEC) in Q4 2025, closing a stake of 22,321 shares — an estimated $39.6K sold.

Group One Trading first reported a position in ALEC in Q3 2020 and held it in 12 quarters. The position peaked at $883K in Q1 2022. 131 funds tracked by Wall St. Rank hold ALEC as of Q4 2025.

  • Group One Trading reported no remaining Alector position as of Q4 2025 after selling out during the quarter.
  • Group One Trading sold 22,321 Alector shares in Q4 2025, an estimated $39.6K.
  • Group One Trading first reported a position in Alector in Q3 2020 and held it in 12 quarters.
  • Group One Trading's Alector position peaked at $883K in Q1 2022.
  • 131 funds tracked by Wall St. Rank held Alector as of Q4 2025.

Based on Group One Trading's 13F filing for Q4 2025, filed 12 Feb 2026.