SLDB — Solid Biosciences Inc

Ownership history in MPM BioImpact LLC  ·  4 quarters on record

This page tracks every 13F SEC filing in which MPM BioImpact LLC reported a position in Solid Biosciences Inc (SLDB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
1.65% (2025 Q3)
Avg. % of fund
1.02%
First filed
2024 Q3
Last filed
2025 Q3
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 1,634,569 — 0% 1.65% $10.1M $6.17
2025 Q2 REDUCED 1,634,569 -7,787 -0.5% 1.38% $8.0M $4.87
2025 Q1 ADDED 1,642,356 +1,630,838 +14159.0% 1.04% $6.1M $3.70
2024 Q3 INITIATED 11,518 — — 0.01% $80K $6.97
% of Fund (quarterly)    SLDB price (monthly, adj. close)

Other funds also holding SLDB

As of 2025 Q4 — sorted by position size

Monashee Investment Management LLC 3Y 7Y 4.29% Bain Capital Life Sciences Investors, LLC 3Y 7Y 3.42% Ally Bridge Group (NY) LLC 3Y 2.43% Birchview Capital, LP 3Y 7Y 2.33% Siren, L.L.C. 1.29% PERCEPTIVE ADVISORS LLC 3Y 7Y 1.19% Vestal Point Capital, LP 1.12% Redmile Group, LLC 3Y 7Y 0.77% Knott David M Jr 3Y 0.42% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 0.34%
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