Monashee Investment Management’s Solid Biosciences SLDB Stock Holding History

Monashee Investment Management’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
2026 Q1	$10.2M	Buy	1,420,295 +70,524	+5%	+$453K	5.56%	6
2025 Q4	$7.61M	Buy	+1,349,771	New	+$7.32M	4.29%	10
2025 Q3	–	Sell	-2,165,000	Closed	-$10.5M	–	82
2025 Q2	$10.5M	Buy	2,165,000 +491,588	+29%	+$1.74M	3.82%	7
2025 Q1	$6.19M	Buy	1,673,412 +1,193,412	+249%	+$5.11M	0.73%	19
2024 Q4	$1.92M	Sell	480,000 -5,000	-1%	-$27.5K	0.26%	31
2024 Q3	$3.38M	Buy	485,000 +35,000	+8%	+$284K	0.37%	40
2024 Q2	$2.55M	Sell	450,000 -170,000	-27%	-$1.52M	0.33%	36
2024 Q1	$8.26M	Buy	+620,000	New	+$5.8M	0.98%	16

Other funds holding SLDB

Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return

BCLSI

Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return

RCM

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

Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

VPC

Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

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

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

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

DTC

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

Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

Monashee Investment Management's SLDB Position: Q1 2026 in Review

Monashee Investment Management increased its Solid Biosciences (SLDB) stake by 5.2% in Q1 2026, buying an estimated $453K and bringing the position to 1,420,295 shares worth $10.2M. The position accounts for 5.56% of the portfolio, ranked #6.

Monashee Investment Management first reported a position in SLDB in Q1 2024 and has held it in 8 quarters since. The position peaked at $10.5M in Q2 2025. 150 funds tracked by Wall St. Rank hold SLDB as of Q1 2026.

Monashee Investment Management held 1,420,295 shares of Solid Biosciences worth $10.2M as of Q1 2026.
Monashee Investment Management bought 70,524 Solid Biosciences shares in Q1 2026, an estimated $453K.
Solid Biosciences made up 5.56% of Monashee Investment Management's portfolio in Q1 2026, its #6 holding.
Monashee Investment Management first reported a position in Solid Biosciences in Q1 2024 and has held it in 8 quarters since.
Monashee Investment Management's Solid Biosciences position peaked at $10.5M in Q2 2025.
150 funds tracked by Wall St. Rank held Solid Biosciences as of Q1 2026.

Based on Monashee Investment Management's 13F filing for Q1 2026, filed 13 May 2026.