American Century Companies
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American Century Companies’s Alector ALEC Stock Holding History

American Century Companies’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
-20,481
Closed -$60.6K – 2819
2025
Q3 		$60.6K Buy
+20,481
New +$45.1K ﹤0.01% 2764
2025
Q1 		– Sell
-56,735
Closed -$107K – 2885
2024
Q4 		$107K Sell
56,735
-7,103
-11% -$26.7K ﹤0.01% 2833
2024
Q3 		$297K Buy
63,838
+13,755
+27% +$73.8K ﹤0.01% 2651
2024
Q2 		$227K Sell
50,083
-21,346
-30% -$110K ﹤0.01% 2703
2024
Q1 		$430K Sell
71,429
-1,154
-2% -$7.54K ﹤0.01% 2501
2023
Q4 		$579K Sell
72,583
-3,086
-4% -$18.3K ﹤0.01% 2313
2023
Q3 		$490K Sell
75,669
-28,554
-27% -$185K ﹤0.01% 2277
2023
Q2 		$626K Sell
104,223
-99,119
-49% -$692K ﹤0.01% 2115
2023
Q1 		$1.24M Sell
203,342
-129,518
-39% -$1.05M ﹤0.01% 1788
2022
Q4 		$3.07M Buy
332,860
+6,089
+2% +$53.1K ﹤0.01% 1420
2022
Q3 		$3.09M Buy
326,771
+184,488
+130% +$1.99M ﹤0.01% 1281
2022
Q2 		$1.45M Buy
142,283
+1,396
+1% +$13.9K ﹤0.01% 1542
2022
Q1 		$2.01M Buy
140,887
+64,589
+85% +$1.02M ﹤0.01% 1411
2021
Q4 		$1.58M Buy
+76,298
New +$1.72M ﹤0.01% 1457

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 $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
FCMI
Foresite Capital Management IV Larkspur, California $237M AUM 107.53% 1-Year Est. Return
MC
Merck & Co Kenilworth, New Jersey $526M AUM 175.27% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 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
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

American Century Companies's ALEC Position: Q4 2025 in Review

American Century Companies sold out of Alector (ALEC) in Q4 2025, closing a stake of 20,481 shares — an estimated $60.6K sold.

American Century Companies first reported a position in ALEC in Q4 2021 and held it in 14 quarters. The position peaked at $3.09M in Q3 2022. 131 funds tracked by Wall St. Rank hold ALEC as of Q4 2025.

  • American Century Companies reported no remaining Alector position as of Q4 2025 after selling out during the quarter.
  • American Century Companies sold 20,481 Alector shares in Q4 2025, an estimated $60.6K.
  • American Century Companies first reported a position in Alector in Q4 2021 and held it in 14 quarters.
  • American Century Companies's Alector position peaked at $3.09M in Q3 2022.
  • 131 funds tracked by Wall St. Rank held Alector as of Q4 2025.

Based on American Century Companies's 13F filing for Q4 2025, filed 13 Feb 2026.