Mirum Pharmaceuticals, Inc.·4

Jun 17, 8:30 PM ET

Fairey William 4

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

Research Summary

AI-generated summary of this filing

Updated

Mirum (MIRM) Director William Fairey Receives Equity Award

What Happened

  • William Fairey, a director of Mirum Pharmaceuticals (MIRM), received two equity awards on 2026-06-15: 3,772 derivative share units and 1,980 deferred stock units. Both awards were granted at $0.00 (no cash paid). These are compensation awards, not open-market purchases or sales.

Key Details

  • Transaction date: 2026-06-15; Form 4 filed: 2026-06-17 (covers the 6/15 grant).
  • Award amounts and price: 3,772 derivative shares @ $0.00; 1,980 deferred stock units @ $0.00.
  • Shares owned after transaction: not reported in this filing.
  • Footnote F1 (3,772 award): vest on the first anniversary of the grant date; the option will in any case be fully vested by the issuer's 2027 annual stockholder meeting.
  • Footnote F2 (1,980 deferred stock units): each unit equals a contingent right to one share, vests on the first anniversary of the grant date (and will be fully vested by the 2027 annual meeting); vested units are payable in common stock upon the earlier of a change in control or within 60 days after separation from service.
  • Filing timeliness: filed two days after the transaction date (appears timely).

Context

  • These were grants/awards (code A) for compensation/retention purposes rather than market buys or sales; they are commonly used to align director incentives and do not by themselves signal buying or selling intent.
  • The derivative award appears subject to a standard vesting schedule; deferred stock units are a contingent right to receive shares under the stated vesting and payout conditions.

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

    Deferred 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 deferred 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. Each vested deferred stock unit will be paid out in the Issuer's common stock upon the earliest to occur of (i) a change in control of the Issuer and (ii) within 60 days following separation from service with the Issuer.
Signature
/s/ Doug Sheehy, Attorney-in-Fact|2026-06-17

Documents

2 files