Howe Jolanda 4

What Happened

• Jolanda Howe, SVP and Global Controller of Mirum Pharmaceuticals (MIRM), had 1,771 restricted stock units vest and convert to common shares on January 31, 2026. A portion of shares related to that vesting were withheld/disposed for tax obligations, and on February 2, 2026 she sold 968 shares in an open-market transaction for $103.30 each, totaling $99,998.

Key Details

• Transactions:
  • 2026-01-31: 1,771 restricted stock units vested and converted to shares (reported as exercise/conversion of derivative).
  • 2026-01-31: 1,771 shares were reported disposed at $0.00 (footnote indicates shares sold/withheld to cover tax withholding).
  • 2026-02-02: Open-market sale of 968 shares at $103.30 per share, proceeds $99,998.
• Footnotes:
  • F1: Each RSU equals a contingent right to one share (or cash equivalent at issuer's discretion).
  • F2: Shares sold/withheld to cover tax withholding from RSU vesting.
  • F3: Vesting schedule: 1,772 RSUs vested 1/31/2024, 1,772 vested 1/31/2025, remaining 1,771 vested 1/31/2026.
• Shares owned after transaction: Not disclosed in the filing.
• Filing timeliness: No late-filing statement noted in the provided filing details.

Context

• These transactions reflect routine RSU vesting and associated tax withholding; the open-market sale appears to be part of managing the tax or cash needs from vesting rather than a separate, discretionary purchase/sell signal. For retail investors, sales to cover tax withholding on vested awards are common and do not necessarily indicate a change in insider confidence.