Form 8-K

8-K — Solid Biosciences Inc.

Accession: 0001193125-26-265804

Filed: 2026-06-10

Period: 2026-06-10

CIK: 0001707502

SIC: 2836 (BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES))

Item: Submission of Matters to a Vote of Security Holders

Documents

8-K — sldb-20260610.htm (Primary)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 10, 2026

Solid Biosciences Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-38360

90-0943402

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

500 Rutherford Avenue

Charlestown, Massachusetts

02129

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: (617) 337-4680

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on which registered

Common Stock $0.001 par value per share

SLDB

The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07 Submission of Matters to a Vote of Security Holders.

Solid Biosciences Inc. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”) on June 10, 2026 to consider and vote upon the matters listed below. The following is a summary of the matters voted on at the Annual Meeting.

1. The Company’s stockholders elected Clare Kahn, Adam Stone and Lynne Sullivan as Class II directors to serve until the 2029 Annual Meeting of Stockholders, each director to hold office until his or her successor has been duly appointed and qualified. The results of the stockholders’ vote with respect to the election of such Class II directors were as follows:

Votes For

Votes

Withheld

Broker

Non-Votes

Clare Kahn

73,139,200

5,700,169

7,685,551

Adam Stone

71,556,735

7,282,634

7,685,551

Lynne Sullivan

73,124,331

5,715,038

7,685,551

2. The Company’s stockholders ratified the appointment of Ilan Ganot, on an advisory basis, as a Class I director to serve until the 2028 Annual Meeting of Stockholders. The results of the stockholders’ vote with respect to such ratification were as follows:

Votes For

Votes

Against

Votes

Abstaining

Broker Non-Votes

78,636,398

185,585

17,386

7,685,551

3. The Company’s stockholders ratified the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. The results of the stockholders’ vote with respect to such ratification were as follows:

Votes For

Votes

Against

Votes

Abstaining

Broker Non-Votes

86,420,186

70,007

34,727

4. The Company’s stockholders approved an amendment to the Company’s Certificate of Incorporation, as amended, to increase the number of authorized shares of the Company’s common stock from 240,000,000 to 480,000,000 (the “Share Increase Amendment”). The results of the stockholders’ vote with respect to such approval were as follows:

Votes For

Votes

Against

Votes

Abstaining

Broker Non-Votes

85,604,508

893,360

27,502

The Company filed a Certificate of Amendment to Certificate of Incorporation with the Secretary of State of the State of Delaware on June 10, 2026 to effect the Share Increase Amendment.

5. The Company’s stockholders approved the non-binding, advisory vote on the compensation paid to its named executive officers. The results of the stockholders’ vote with respect to such approval were as follows:

Votes For

Votes

Against

Votes

Abstaining

Broker Non-Votes

72,596,980

6,203,634

38,755

7,685,551

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SOLID BIOSCIENCES INC.

Date:

June 10, 2026

By:

/s/ Alexander Cumbo

Name:

Title

Alexander Cumbo

Chief Executive Officer

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