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C4 Therapeutics, Inc.·4

Feb 18, 5:04 PM ET

Mossler Mark 4

Research Summary

AI-generated summary

Updated

C4 Therapeutics CAO Mark Mossler Receives RSU Award, Vests Shares

What Happened

  • Mark Mossler, Chief Accounting Officer of C4 Therapeutics (CCCC), received a grant of 56,980 restricted stock units (RSUs) on Feb 13, 2026. On Feb 14, 2026, 9,420 shares were acquired upon vesting/conversion of previously disclosed RSUs. To satisfy withholding tax obligations, 3,268 shares were withheld by the issuer at a reported price of $1.89 per share (withholding value ≈ $6,177).
  • These actions are award/vesting events (not an open-market purchase or directional sale), and the 3,268-share withholding is a routine tax withholding (not a sale by Mossler, per the filing footnote).

Key Details

  • Transaction dates: Grant 2026-02-13 (56,980 RSUs); Vesting/conversion 2026-02-14 (9,420 shares); Tax withholding 2026-02-14 (3,268 shares at $1.89, ≈ $6,177).
  • Prices/values reported: RSUs granted at $0.00 (typical for equity awards); withheld shares valued at $1.89 each for tax withholding.
  • Shares owned after transaction: Not specified in the excerpt provided.
  • Footnotes of note:
    • F1: RSU vesting schedule — 28,490 RSUs vest in three equal annual installments (first installment Feb 13, 2027); the other 28,490 RSUs vest in full on Feb 13, 2029, subject to potential acceleration upon achievement of certain performance milestones.
    • F2: The 9,420 shares reflect vesting/settlement of previously reported RSU grants (originally disclosed 4/10/2024 and 2/18/2025).
    • F3: The 3,268-share disposition represents issuer withholding to satisfy tax obligations and is not a sale by the reporting person.
  • Filing timeliness: Form filed Feb 18, 2026 covering Feb 13–14 transactions; the filing excerpt provided does not indicate a late-filing flag.

Context

  • Equity awards and RSU vesting are common compensation events for executives and are generally routine; the grant increases potential future ownership if vesting conditions are met. The conversion on Feb 14 appears to be settlement of earlier RSUs rather than an option exercise for cash proceeds. Tax-withholding via share retention is a standard administrative step and does not necessarily signal insider sentiment.