SLDB β€” SOLID BIOSCIENCES INC

Ownership history in SFMG, LLC  Β·  3 quarters on record

This page tracks every 13F SEC filing in which SFMG, 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 β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.01% (2025 Q3)
πŸ“Š Avg. % of fund
0.01%
πŸ“… First filed
2025 Q1
πŸ“… Last filed
2025 Q3
⏱ Quarters held
3

Position Intelligence

SFMG, LLC Γ— SLDB AI Analytics

πŸ“ˆ SFMG, LLC outperformed the S&P 500 by +78.8% annually on this SLDB position. Average cost basis: $3.70. Maximum drawdown during holding period: –0.0%.

πŸ“ˆ Position Alpha vs SPY
+78.8%
annualised excess return

πŸ”₯ Exceptional β€” beat the S&P 500 by 78.8% per year on this position.
2 quarters analyzed

πŸ’° Entry Quality
$3.70
+66.8% vs current ($6.17)

Best entry: $3.70 (2025 Q1)  Β·  Worst: $3.70 (2025 Q1)

πŸ›‘οΈ Drawdown Resilience
–0.0%
max drawdown while held

πŸ’Ž No drawdown exceeding 20% during the holding period β€” exceptionally stable.

πŸ’ͺ Fund Conviction
100%
buy-side decisions

1 add Β· 0 trims. πŸ‚ Consistently bullish β€” fund kept accumulating this position.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.01% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    SLDB price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 3 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 25,031 β€” 0% 0.01% $154K $6.17
2025 Q2 UNCHANGED 25,031 β€” 0% 0.01% $122K $4.87
2025 Q1 INITIATED 25,031 β€” β€” 0.01% $93K $3.70

🏒 Other funds also holding SLDB

As of 2025 Q4 β€” 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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