Jane Street’s Solid Biosciences SLDB Stock Holding History

Jane Street’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 Q2	–	Sell	-32,900	Closed	-$237K	–	12990
2026 Q1	$237K	Buy	+32,900	New	+$211K	﹤0.01%	9755
2025 Q3	–	Sell	-27,600	Closed	-$134K	–	11679
2025 Q2	$134K	Buy	27,600 +16,000	+138%	+$56.6K	﹤0.01%	8818
2025 Q1	$42.9K	Buy	+11,600	New	+$49.7K	﹤0.01%	9038
2021 Q3	–	Sell	-2,107	Closed	-$116K	–	10642
2021 Q2	$116K	Sell	2,107 -7,680	-78%	-$507K	﹤0.01%	9197
2021 Q1	$812K	Buy	9,787 +7,334	+299%	+$811K	﹤0.01%	5861
2020 Q4	$279K	Buy	+2,453	New	+$155K	﹤0.01%	6522

Other funds holding SLDB

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return

BCLSI

Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Jane Street's SLDB Position: Q2 2026 in Review

Jane Street reduced its Solid Biosciences (SLDB) stake by 36% in Q2 2026, selling an estimated $267K and leaving 61,786 shares worth $617K. The position accounts for ﹤0.01% of the portfolio, ranked #7536.

Jane Street first reported a position in SLDB in Q2 2020 and has held it in 11 quarters since. The position peaked at $1.2M in Q4 2025. 157 funds tracked by Wall St. Rank hold SLDB as of Q2 2026.

Jane Street held 61,786 shares of Solid Biosciences worth $617K as of Q2 2026.
Jane Street sold 35,207 Solid Biosciences shares in Q2 2026, an estimated $267K.
Solid Biosciences made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7536 holding.
Jane Street first reported a position in Solid Biosciences in Q2 2020 and has held it in 11 quarters since.
Jane Street's Solid Biosciences position peaked at $1.2M in Q4 2025.
157 funds tracked by Wall St. Rank held Solid Biosciences as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.