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EcoR1 Capital’s Erasca ERAS Stock Holding History

EcoR1 Capital’s Portfolio ERAS Stock Details ERAS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$6.05M Sell
330,000
-570,000
-63% -$8.15M 0.29% 27
2026
Q1 		$14.6M Buy
+900,000
New +$10.6M 0.62% 19
2023
Q2 		– Sell
-678,441
Closed -$2.04M – 59
2023
Q1 		$2.04M Hold
678,441
– – 0.07% 46
2022
Q4 		$2.92M Hold
678,441
– – 0.09% 54
2022
Q3 		$5.29M Hold
678,441
– – 0.16% 48
2022
Q2 		$3.78M Hold
678,441
– – 0.13% 52
2022
Q1 		$5.83M Sell
678,441
-21,559
-3% -$250K 0.18% 47
2021
Q4 		$10.9M Hold
700,000
– – 0.35% 35
2021
Q3 		$14.9M Buy
+700,000
New +$14.4M 0.52% 29

Other funds holding ERAS

FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
VA
VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
LGM
Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return

EcoR1 Capital's ERAS Position: Q2 2026 in Review

EcoR1 Capital reduced its Erasca (ERAS) stake by 63% in Q2 2026, selling an estimated $8.15M and leaving 330,000 shares worth $6.05M. The position accounts for 0.29% of the portfolio, ranked #27.

EcoR1 Capital first reported a position in ERAS in Q3 2021 and has held it in 9 quarters since. The position peaked at $14.9M in Q3 2021. 257 funds tracked by Wall St. Rank hold ERAS as of Q2 2026.

  • EcoR1 Capital held 330,000 shares of Erasca worth $6.05M as of Q2 2026.
  • EcoR1 Capital sold 570,000 Erasca shares in Q2 2026, an estimated $8.15M.
  • Erasca made up 0.29% of EcoR1 Capital's portfolio in Q2 2026, its #27 holding.
  • EcoR1 Capital first reported a position in Erasca in Q3 2021 and has held it in 9 quarters since.
  • EcoR1 Capital's Erasca position peaked at $14.9M in Q3 2021.
  • 257 funds tracked by Wall St. Rank held Erasca as of Q2 2026.

Based on EcoR1 Capital's 13F filing for Q2 2026, filed 14 Aug 2026.