Howton David T 4

What Happened

• David T. Howton, Chief Operating Officer of Solid Biosciences (SLDB), had vested equity convert to common stock and a portion of the resulting shares were sold to cover withholding taxes. On Feb 2, 2026 he sold 37,771 shares at a weighted average price of $6.44 for proceeds of $243,128. The sale was non‑discretionary under a preexisting sell‑to‑cover instruction.
• Related equity activity tied to the vesting/conversion: on Jan 29, 2026 and Jan 31, 2026 the filing shows conversions/exercises of derivative awards totaling 121,616 shares (79,341 and 42,275). The filing also reports awards/acquisitions of 210,200 and 105,100 shares (grants/RSU/PSU related) recorded at $0 consideration.

Key Details

• Transaction dates and prices:
  • Jan 29, 2026: conversion/exercise of 79,341 derivative shares (reported $0 consideration).
  • Jan 31, 2026: conversion/exercise of 42,275 derivative shares (reported $0 consideration).
  • Feb 2, 2026: open‑market sale of 37,771 shares at a weighted avg price of $6.44 (range $6.295–$6.580), proceeds $243,128.
• Shares owned after transaction: Not specified in the data provided in your prompt.
• Notable footnotes:
  • PSUs and RSUs convert one‑for‑one into common stock (F1, F2).
  • The Feb 2 sale was a sell‑to‑cover for withholding taxes under an automatic instruction adopted Aug 16, 2024 (non‑discretionary) (F3).
  • Price shown is a weighted average; sale prices ranged $6.295–$6.580 (F4).
  • The PSU vesting that triggered part of this activity was the first milestone certified Jan 29, 2026 (25% vesting) from a June 11, 2024 PSU grant (F5).
  • Newly reported option/RSU grants vest over four years with typical 25% first‑year vesting (F6, F7, F8).
• Filing timeliness: Form 4 filed Feb 2, 2026; based on the reported dates this appears to be filed within the normal Form 4 reporting window (not flagged as late).

Context

• The filing reflects award vesting and conversion of PSUs/RSUs into common shares, not an independent investment decision. The sale was to cover taxes (a routine cashless/sell‑to‑cover event), and was non‑discretionary. Derivative entries indicate exercises/conversions rather than a market purchase. For retail investors, purchases by insiders are generally more indicative of bullish sentiment; this filing primarily documents routine vesting and tax withholding.