Jolanda Howe - Jun 30, 2023 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)

Role
SVP, Global Controller
Signature
/s/ Judit Ryvkin, Attorney-in-Fact
Stock symbol
MIRM
Transactions as of
Jun 30, 2023
Transactions value $
-$23,467
Form type
4
Date filed
7/5/2023, 07:33 PM
Previous filing
May 9, 2023
Next filing
Aug 28, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIRM Common Stock Options Exercise +1.56K +88.36% 3.33K Jun 30, 2023 Direct F1
transaction MIRM Common Stock Options Exercise +1.04K +31.27% 4.37K Jul 1, 2023 Direct F1
transaction MIRM Common Stock Sale -$23.5K -915 -20.92% $25.65 3.46K Jul 3, 2023 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MIRM Performance Restricted Stock Units Options Exercise $0 -1.56K -100% $0.00* 0 Jun 30, 2023 Common Stock 1.56K Direct F1, F3
transaction MIRM Restricted Stock Units Options Exercise $0 -1.04K -33.34% $0.00 2.08K Jul 1, 2023 Common Stock 1.04K Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one share of common stock (or its cash equivalent, at the discretion of the Issuer).
F2 Shares sold to cover tax withholding obligations associated with the vesting of restricted stock units.
F3 On March 9, 2021, the reporting person was granted performance-based restricted stock units ("PSUs"), which vest upon the satisfaction of certain performance criteria. On September 29, 2021, such performance criteria were met. 1,562 shares subject to the PSUs vested on September 29, 2021, and 1,563 shares vested on June 30, 2023.
F4 The restricted stock units vest in a series of three successive equal annual installments beginning July 1, 2023.