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Jeff Yass’s Alector ALEC Stock Holding History

Jeff Yass’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
2026
Q2 		$273K Sell
135,900
-25,800
-16% -$55.3K ﹤0.01% 11261
2026
Q1 		$348K Sell
161,700
-21,500
-12% -$43.2K ﹤0.01% 10549
2025
Q4 		$286K Buy
183,200
+99,100
+118% +$176K ﹤0.01% 10065
2025
Q3 		$249K Buy
+84,100
New +$185K ﹤0.01% 10526
2024
Q4 		– Sell
-80,800
Closed -$377K – 12106
2024
Q3 		$377K Buy
+80,800
New +$433K ﹤0.01% 9114
2024
Q2 		– Sell
-12,500
Closed -$75.3K – 11951
2024
Q1 		$75.3K Sell
12,500
-10,300
-45% -$67.3K ﹤0.01% 11365
2023
Q4 		$182K Sell
22,800
-9,500
-29% -$56.3K ﹤0.01% 10776
2023
Q3 		$209K Buy
32,300
+22,200
+220% +$144K ﹤0.01% 10136
2023
Q2 		$60.7K Sell
10,100
-2,400
-19% -$16.8K ﹤0.01% 11252
2023
Q1 		$77.4K Sell
12,500
-143,100
-92% -$1.16M ﹤0.01% 11456
2022
Q4 		$1.44M Sell
155,600
-17,700
-10% -$154K ﹤0.01% 5380
2022
Q3 		$1.64M Buy
173,300
+130,400
+304% +$1.41M ﹤0.01% 5374
2022
Q2 		$436K Sell
42,900
-900
-2% -$8.98K ﹤0.01% 8602
2022
Q1 		$624K Sell
43,800
-1,900
-4% -$30.1K ﹤0.01% 8358
2021
Q4 		$944K Sell
45,700
-108,000
-70% -$2.44M ﹤0.01% 7459
2021
Q3 		$3.51M Buy
153,700
+52,100
+51% +$1.46M ﹤0.01% 4620
2021
Q2 		$2.12M Buy
+101,600
New +$1.92M ﹤0.01% 5790
2021
Q1 		– Sell
-66,400
Closed -$1M – 12187
2020
Q4 		$1M Sell
66,400
-38,800
-37% -$482K ﹤0.01% 6718
2020
Q3 		$1.11M Buy
105,200
+17,700
+20% +$286K ﹤0.01% 5856
2020
Q2 		$2.14M Buy
87,500
+61,600
+238% +$1.7M ﹤0.01% 4372
2020
Q1 		$625K Buy
+25,900
New +$660K ﹤0.01% 6439

Other funds holding ALEC

TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return
MC
Merck & Co Rahway, New Jersey $526M AUM 175.27% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Jeff Yass's ALEC Position: Q2 2026 in Review

Jeff Yass reduced its Alector (ALEC) stake by 78% in Q2 2026, selling an estimated $179K and leaving 24,123 shares worth $48.5K. The position accounts for ﹤0.01% of the portfolio, ranked #12838.

Jeff Yass first reported a position in ALEC in Q3 2019 and has held it in 27 quarters since. The position peaked at $3.73M in Q4 2021. 140 funds tracked by Wall St. Rank hold ALEC as of Q2 2026.

  • Jeff Yass held 24,123 shares of Alector worth $48.5K as of Q2 2026.
  • Jeff Yass sold 83,474 Alector shares in Q2 2026, an estimated $179K.
  • Alector made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #12838 holding.
  • Jeff Yass first reported a position in Alector in Q3 2019 and has held it in 27 quarters since.
  • Jeff Yass's Alector position peaked at $3.73M in Q4 2021.
  • 140 funds tracked by Wall St. Rank held Alector as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.