Welcome to our dedicated page for Solid Bioscience SEC filings (Ticker: SLDB), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Solid Biosciences Inc. filings document regulatory disclosures for a Nasdaq-listed precision genetic medicine company developing gene therapies for rare neuromuscular and cardiac diseases. Its SEC records include Form 8-K reports on operating and financial results, Regulation FD presentations, clinical updates for SGT-003 and the INSPIRE DUCHENNE trial, material agreements, and capital-structure matters.
Proxy filings describe annual stockholder meeting proposals, board classification matters, advisory votes, executive compensation, and equity awards. The filing record also identifies the company’s common stock as listed on The Nasdaq Global Select Market under the SLDB symbol.
Solid Biosciences Inc. Schedule 13G/A filing by Commodore Capital entities
Commodore Capital LP and Commodore Capital Master LP filed an amendment to Schedule 13G reporting zero shares beneficially owned of Solid Biosciences Inc. (CUSIP 83422E204), representing 0.0% of the class. The filing lists the issuers' principal office at 500 Rutherford Avenue, Charlestown, Massachusetts, and gives filing addresses for the two filers in New York and the Cayman Islands. Both filers state no sole or shared voting or dispositive power over any shares and certify the securities were not acquired to influence control of the issuer. The filing is signed by Michael Kramarz for both entities and references a Joint Filing Agreement as an exhibit.
Solid Biosciences Inc. (SLDB) reported expanded clinical progress and a strengthened balance sheet while continuing to record sizable operating losses. As of June 30, 2025 the company held $138.9 million in cash and cash equivalents and $129.2 million in available-for-sale securities, totaling $268.1 million of liquid resources (excluding $1.9 million restricted cash). Total assets were $308.3 million and total liabilities were $50.0 million, leaving stockholders' equity of $258.3 million.
The company posted net losses of $39.5 million and $78.8 million for the three and six months ended June 30, 2025, respectively, driven by research and development spending of $32.4 million and $63.3 million for the same periods. Clinical and regulatory milestones include SGT-003 dosing (15 participants dosed as of August 12, 2025) with reported initial biopsy expression of microdystrophin averaging 110%, SGT-212 IND clearance (Dec 2024), and SGT-501 IND clearance and Health Canada CTA approval (July 2025). The February 2025 offering generated approximately $188.0 million of net proceeds. The company expects its cash, cash equivalents and securities to fund operations into the first half of 2027.
Form 4 highlights: On 07/06/2025, Solid Biosciences Inc. (SLDB) director Ian F. Smith acquired 4,573 common shares through the mandatory conversion (Code M) of previously granted restricted stock units (RSUs). The RSUs, issued on 01/06/2025, vest in four equal quarterly tranches and convert to common stock on a 1-for-1 basis. Following the transaction, Smith now directly owns 122,119 common shares and retains 9,146 unvested RSUs. The RSUs will accelerate in full if the Executive Chair Agreement terminates early or upon a change in control of the company. No shares were sold, suggesting continued insider exposure to SLDB’s equity. The filing was signed on 07/08/2025.
Solid Biosciences (NASDAQ:SLDB) filed a routine Form 4 disclosing that director Georgia Keresty received a stock-option grant covering 77,500 shares on 06/12/2025 at an exercise price of $4.58 per share.
The option vests in full on the earlier of the one-year anniversary of the grant or immediately prior to the next annual shareholder meeting, and accelerates upon certain change-in-control events. It expires on 06/12/2035. No open-market purchases or sales of common stock were reported, and Keresty’s beneficial ownership now reflects only the newly granted option, held directly.