RI
SLRN

RTW Investments’s ACELYRIN SLRN Stock Holding History

RTW Investments’s Portfolio SLRN Stock Details SLRN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-978,310
Closed -$3.07M – 80
2024
Q4 		$3.07M Hold
978,310
– – 0.05% 65
2024
Q3 		$4.82M Hold
978,310
– – 0.07% 59
2024
Q2 		$4.31M Hold
978,310
– – 0.07% 57
2024
Q1 		$6.6M Hold
978,310
– – 0.1% 56
2023
Q4 		$7.3M Hold
978,310
– – 0.11% 54
2023
Q3 		$9.95M Hold
978,310
– – 0.21% 47
2023
Q2 		$20.4M Buy
+978,310
New +$20M 0.39% 37

Other funds holding SLRN

TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
ACMC
AyurMaya Capital Management Company Portsmouth, New Hampshire $148M AUM 24.4% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
MAP
Madison Avenue Partners New York $2.3B AUM 115.82% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
VP
venBio Partners San Francisco, California $281M AUM 261.03% 1-Year Est. Return
VCIM
Velan Capital Investment Management Alpharetta, Georgia $160M AUM 517.12% 1-Year Est. Return
TCM
Tybourne Capital Management Hong Kong $30.9M AUM 20.1% 1-Year Est. Return

RTW Investments's SLRN Position: Q1 2025 in Review

RTW Investments sold out of ACELYRIN (SLRN) in Q1 2025, closing a stake of 978,310 shares — an estimated $3.07M sold.

RTW Investments first reported a position in SLRN in Q2 2023 and held it in 7 quarters. The position peaked at $20.4M in Q2 2023. 105 funds tracked by Wall St. Rank hold SLRN as of Q1 2025.

  • RTW Investments reported no remaining ACELYRIN position as of Q1 2025 after selling out during the quarter.
  • RTW Investments sold 978,310 ACELYRIN shares in Q1 2025, an estimated $3.07M.
  • RTW Investments first reported a position in ACELYRIN in Q2 2023 and held it in 7 quarters.
  • RTW Investments's ACELYRIN position peaked at $20.4M in Q2 2023.
  • 105 funds tracked by Wall St. Rank held ACELYRIN as of Q1 2025.

Based on RTW Investments's 13F filing for Q1 2025, filed 15 May 2025.