Rock Springs Capital Management’s Allakos ALLK Stock Holding History

Rock Springs Capital Management’s Portfolio ALLK Stock Details ALLK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-1,100,409	Closed	-$1.33M	–	98
2024 Q4	$1.33M	Sell	1,100,409 -100,000	-8%	-$105K	0.05%	98
2024 Q3	$784K	Hold	1,200,409	–	–	0.03%	104
2024 Q2	$1.2M	Buy	+1,200,409	New	+$1.43M	0.04%	107
2021 Q4	–	Sell	-305,706	Closed	-$32.4M	–	137
2021 Q3	$32.4M	Hold	305,706	–	–	0.68%	50
2021 Q2	$26.1M	Hold	305,706	–	–	0.52%	60
2021 Q1	$35.1M	Sell	305,706 -35,794	-10%	-$4.52M	0.77%	44
2020 Q4	$47.8M	Buy	341,500 +99,918	+41%	+$10.4M	1.01%	31
2020 Q3	$19.7M	Buy	241,582 +2,550	+1%	+$207K	0.5%	65
2020 Q2	$17.2M	Buy	239,032 +4,032	+2%	+$270K	0.47%	71
2020 Q1	$10.5M	Hold	235,000	–	–	0.43%	75
2019 Q4	$22.4M	Sell	235,000 -55,000	-19%	-$4.84M	0.71%	55
2019 Q3	$22.8M	Sell	290,000 -114,000	-28%	-$7.52M	0.91%	40
2019 Q2	$17.5M	Hold	404,000	–	–	0.63%	57
2019 Q1	$16.4M	Hold	404,000	–	–	0.63%	55
2018 Q4	$21.1M	Sell	404,000 -1,000	-0.2%	-$50.1K	1%	30
2018 Q3	$18.2M	Buy	+405,000	New	+$16.6M	0.66%	50

Other funds holding ALLK

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return

DTC

Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return

NMC

NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return

Wilshire Advisors Santa Monica, California $10.3M AUM 79.91% 1-Year Est. Return

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

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

LGM

Logos Global Management San Francisco, California $2B AUM 444.09% 1-Year Est. Return

APMC

Alta Partners Management Company Jackson, Wyoming $127M AUM 230.85% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Rock Springs Capital Management's ALLK Position: Q1 2025 in Review

Rock Springs Capital Management sold out of Allakos (ALLK) in Q1 2025, closing a stake of 1,100,409 shares — an estimated $1.33M sold.

Rock Springs Capital Management first reported a position in ALLK in Q3 2018 and held it in 16 quarters. The position peaked at $47.8M in Q4 2020. 64 funds tracked by Wall St. Rank hold ALLK as of Q1 2025.

Rock Springs Capital Management reported no remaining Allakos position as of Q1 2025 after selling out during the quarter.
Rock Springs Capital Management sold 1,100,409 Allakos shares in Q1 2025, an estimated $1.33M.
Rock Springs Capital Management first reported a position in Allakos in Q3 2018 and held it in 16 quarters.
Rock Springs Capital Management's Allakos position peaked at $47.8M in Q4 2020.
64 funds tracked by Wall St. Rank held Allakos as of Q1 2025.

Based on Rock Springs Capital Management's 13F filing for Q1 2025, filed 15 May 2025.