Baker Bros. Advisors’s Alector ALEC Stock Holding History

Baker Bros. Advisors’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
2024 Q4	–	Sell	-927,264	Closed	-$4.32M	–	96
2024 Q3	$4.32M	Hold	927,264	–	–	0.04%	70
2024 Q2	$4.21M	Buy	+927,264	New	+$4.77M	0.05%	70
2023 Q4	–	Sell	-964,851	Closed	-$6.25M	–	86
2023 Q3	$6.25M	Hold	964,851	–	–	0.04%	60
2023 Q2	$5.8M	Hold	964,851	–	–	0.03%	70
2023 Q1	$5.97M	Buy	964,851 +282,860	+41%	+$2.3M	0.03%	66
2022 Q4	$6.29M	Buy	681,991 +442,763	+185%	+$3.86M	0.04%	72
2022 Q3	$2.26M	Hold	239,228	–	–	0.01%	100
2022 Q2	$2.43M	Hold	239,228	–	–	0.01%	93
2022 Q1	$3.41M	Hold	239,228	–	–	0.02%	95
2021 Q4	$4.94M	Hold	239,228	–	–	0.02%	94
2021 Q3	$5.46M	Hold	239,228	–	–	0.02%	92
2021 Q2	$4.98M	Hold	239,228	–	–	0.02%	97
2021 Q1	$4.82M	Hold	239,228	–	–	0.02%	95
2020 Q4	$3.62M	Sell	239,228 -26,372	-10%	-$328K	0.01%	98
2020 Q3	$2.8M	Sell	265,600 -14,400	-5%	-$233K	0.01%	94
2020 Q2	$6.84M	Hold	280,000	–	–	0.03%	74
2020 Q1	$6.76M	Buy	+280,000	New	+$7.14M	0.04%	56

Other funds holding ALEC

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Merck & Co Kenilworth, New Jersey $349M AUM 146.07% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Euclidean Capital New York $392M AUM 31.85% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return

Baker Bros. Advisors's ALEC Position: Q4 2024 in Review

Baker Bros. Advisors sold out of Alector (ALEC) in Q4 2024, closing a stake of 927,264 shares — an estimated $4.32M sold.

Baker Bros. Advisors first reported a position in ALEC in Q1 2020 and held it in 17 quarters. The position peaked at $6.84M in Q2 2020. 150 funds tracked by Wall St. Rank hold ALEC as of Q4 2024.

Baker Bros. Advisors reported no remaining Alector position as of Q4 2024 after selling out during the quarter.
Baker Bros. Advisors sold 927,264 Alector shares in Q4 2024, an estimated $4.32M.
Baker Bros. Advisors first reported a position in Alector in Q1 2020 and held it in 17 quarters.
Baker Bros. Advisors's Alector position peaked at $6.84M in Q2 2020.
150 funds tracked by Wall St. Rank held Alector as of Q4 2024.

Based on Baker Bros. Advisors's 13F filing for Q4 2024, filed 14 Feb 2025.