CUMBO ALEXANDER

PrivateCIK: 1685994
Location

CAMBRIDGE, MA

Senior insider sale

President and CEO at SOLID BIOSCIENCES INC. — senior position signals high conviction

$983.8K

156.62K shares

What this filing means

CUMBO ALEXANDER plans to sell 156.62K shares of SOLID BIOSCIENCES INC. valued at approximately $983.8K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderCUMBO ALEXANDERCIK 1685994
IssuerSOLID BIOSCIENCES INC.CIK 1707502
DirectorOfficer· President and CEO
Since Feb 2026
156.62K
Shares to sell
$983.8K
Approx. market value
16.64K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Sort

Settlement of vested restricted stock units

Compensation

2/18/2026
16.64K
Total acquired16.64K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

48.91K

Market value

$315.1K

2/4/2026
Completed

Units to sell

80.26K

Market value

$516.6K

2/2/2026
Completed

Units to sell

10.81K

Market value

$55.2K

12/3/2025

Planned — Approximate Date

NASDAQPlanned

Units to sell

16.64K

Market value

$96.9K

2/18/2026
Total

Units

156.62K

Value

$983.8K

CUMBO ALEXANDER — Planned Insider Sale (Form 144) | Finecho