Mirum Pharmaceuticals, Inc.·4

Jun 17, 8:30 PM ET

Walbert Timothy P 4

4 · Mirum Pharmaceuticals, Inc. · Filed Jun 17, 2026

Research Summary

AI-generated summary of this filing

Updated

Mirum (MIRM) Director Timothy P. Walbert Receives Equity Award

What Happened

  • Timothy P. Walbert, a director of Mirum Pharmaceuticals (MIRM), was granted two equity awards on 2026-06-15: a 3,772-share derivative award and 1,980 restricted stock units (RSUs), a total of 5,752 contingent units. Both awards show a grant price of $0.00 and are reported as derivative awards (no cash paid).
  • These are grants/awards (code A), not purchases or sales — common as part of director compensation. There were no immediate sales or cash proceeds reported.

Key Details

  • Transaction date: 2026-06-15; Form 4 filed: 2026-06-17 (appears timely).
  • Awards: 3,772-share derivative award (footnote F1) and 1,980 RSUs (footnote F2); combined = 5,752 units. Grant price reported as $0.00.
  • Shares owned after transaction: not disclosed in the provided summary.
  • Vesting/footnotes:
    • F1: The 3,772-share award vests on the first anniversary of the grant date, and in any case will be fully vested by the Issuer's 2027 annual stockholder meeting.
    • F2: Each of the 1,980 restricted stock units represents a contingent right to receive one share and vests on the first anniversary of the grant date, and will be fully vested by the Issuer's 2027 annual stockholder meeting.
  • No 10b5-1 plan, tax-withholding sale, or immediate sale reported.

Context

  • These are derivative/RSU awards that convert into common shares only upon vesting; they do not reflect an open-market purchase or sale and do not by themselves indicate the insider is buying or selling stock.
  • Grants to directors are routine compensation. For retail investors, purchases are often more informative about personal conviction; this filing documents compensation-related awards with scheduled vesting.

Insider Transaction Report

Form 4
Period: 2026-06-15
Transactions
  • Award

    Stock Option (right to buy)

    [F1]
    2026-06-15+3,7723,772 total
    Exercise: $101.00Exp: 2036-06-14Common Stock (3,772 underlying)
  • Award

    Restricted Stock Units

    [F2]
    2026-06-15+1,9801,980 total
    Common Stock (1,980 underlying)
Footnotes (2)
  • [F1]The shares vest on the first anniversary of the grant date, provided that the option will in any case be fully vested on the date of the Issuer's 2027 annual stockholder meeting.
  • [F2]Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock and will vest on the first anniversary of the grant date, provided that it will in any case be fully vested on the date of the Issuer's 2027 annual stockholder meeting.
Signature
/s/ Doug Sheehy, Attorney-in-Fact|2026-06-17

Documents

2 files