EC
SLDB icon

EcoR1 Capital’s Solid Biosciences SLDB Stock Holding History

EcoR1 Capital’s Portfolio SLDB Stock Details SLDB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-744,450
Closed -$2.75M – 47
2025
Q1 		$2.75M Buy
+744,450
New +$3.19M 0.16% 34
2022
Q2 		– Sell
-171,007
Closed -$3.08M – 95
2022
Q1 		$3.08M Sell
171,007
-442,506
-72% -$7.81M 0.1% 59
2021
Q4 		$16.1M Hold
613,513
– – 0.51% 31
2021
Q3 		$22M Hold
613,513
– – 0.77% 24
2021
Q2 		$33.7M Hold
613,513
– – 1.26% 17
2021
Q1 		$50.9M Buy
613,513
+81,666
+15% +$9.04M 2.26% 14
2020
Q4 		$60.5M Buy
+531,847
New +$33.6M 3.36% 11
2019
Q4 		– Sell
-222,846
Closed -$34.6M – 55
2019
Q3 		$34.6M Buy
222,846
+167,713
+304% +$19M 4.61% 10
2019
Q2 		$4.75M Buy
+55,133
New +$6.01M 0.49% 31
2019
Q1 		– Sell
-57,816
Closed -$23.2M – 55
2018
Q4 		$23.2M Buy
+57,816
New +$27.2M 2.67% 15

Other funds holding SLDB

PA
Perceptive Advisors New York $5.06B AUM 314.02% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $141B AUM 30.34% 1-Year Est. Return
MIM
Monashee Investment Management Boston, Massachusetts $184M AUM 197.43% 1-Year Est. Return