SOLID BIOSCIENCES INC (SLDB) is held by 87 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is RA CAPITAL MANAGEMENT, L.P. as of Q1 2026.

Are institutions buying or selling SLDB?

In Q1 2026, 50 institutions opened or increased positions in SOLID BIOSCIENCES INC while 33 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on SLDB?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for SOLID BIOSCIENCES INC.

How many hedge funds hold SLDB?

87 institutional investors report holding SOLID BIOSCIENCES INC (SLDB) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into SLDB?

As of Q1 2026, tracked institutions in SOLID BIOSCIENCES INC show 50 buyers versus 33 sellers — net inflows.

SOLID BIOSCIENCES INC

SLDB·83422E204·US·Common Stock·Healthcare - Biotechnology-Activist

Holders

Avg rating(19 Elite)

$336.2M

Total Value

60% (90)

Fund Consensus

50 buying - 33 selling

Smart Money Verdict

View all

Held by 87 funds

19 elite

Who's Trading

Activist

RA Capital Management, L.P.11.9%Jun 24, 2026

ActivistRDRaymond Debbane10.0%May 5, 2026

Activist

BlackRock, Inc.4.7%Apr 27, 2026

Activist

RA Capital Management, L.P.9.9%Mar 17, 2026

ActivistPAPerceptive Advisors LLC12.9%Mar 11, 2026

ActivistBSBCLS SB Investco, LP0.0%Mar 10, 2026

InsiderCACumbo AlexanderSell $97KFeb 18, 2026

InsiderHTHowton David TSell $43KFeb 18, 2026

InsiderTKTan KevinSell $31KFeb 18, 2026

InsiderBGBrooks GabrielSellFeb 18, 2026

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
RA CAPITAL MANAGEMENT, L.P.	Increased	9.3M(+60.7%)	$67.2M	0.7%	+66.37%	60
BlackRock, Inc.	Increased	5M(+1.8%)	$35.7M	0.0%	+130.84%	29
Janus Henderson Group Ltd.	New	4M	$28.9M	0.0%	+74.83%	40
FMR LLC	Increased	3.6M(+77.7%)	$26M	0.0%	+106.95%	44
CITADEL ADVISORS LLC	Decreased	2.6M(-2.5%)	$18.7M	0.0%	+90.15%	0
AMERIPRISE FINANCIAL INC	New	2.4M	$17.6M	0.0%	+74.83%	39
AIAlyeska Investment Group, L.P.	Increased	2.3M(+35.5%)	$16.4M	0.0%	+111.60%	37
FRANKLIN RESOURCES INC	Increased	2.2M(+37.1%)	$15.8M	0.0%	+115.76%	37
Point72 Asset Management, L.P.	Decreased	2.1M(-15.1%)	$14.8M	0.0%	+101.91%	0
AGADAGE CAPITAL PARTNERS GP, L.L.C.	Increased	1.8M(+25.5%)	$12.6M	0.0%	+59.91%	34
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.3M(+2.3%)	$9.3M	0.0%	+82.60%	28
STATE STREET CORP	Increased	1.1M(+3.5%)	$8.1M	0.0%	+88.33%	28
DIMENSIONAL FUND ADVISORS LP	Increased	956,135(+40.8%)	$6.9M	0.0%	+85.56%	36
GOLDMAN SACHS GROUP INC	Decreased	935,535(-7.0%)	$6.7M	0.0%	+96.53%	0
BLAIR WILLIAM & CO/IL	New	651,216	$4.7M	0.0%	+74.83%	37
Woodline Partners LP	Increased	495,076(+56.3%)	$3.6M	0.0%	+112.20%	38
NORTHERN TRUST CORP	Increased	418,199(+1.3%)	$3M	0.0%	+87.32%	27
Nuveen, LLC	Increased	400,292(+1.4%)	$2.9M	0.0%	+121.97%	27
BANK OF AMERICA CORP /DE/	Increased	386,793(+12.3%)	$2.8M	0.0%	+115.71%	30
MILLENNIUM MANAGEMENT LLC	Increased	363,675(+211.8%)	$2.6M	0.0%	+67.62%	42