Michael G. Grey - 13 Sep 2023 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)

Role
Director
Signature
/s/ Judit Ryvkin, Attorney-in-Fact
Issuer symbol
MIRM
Transactions as of
13 Sep 2023
Net transactions value
-$424,567
Form type
4
Filing time
14 Sep 2023, 19:33:02 UTC
Previous filing
28 Jul 2023
Next filing
28 Sep 2023
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIRM Common Stock Options Exercise $1,151 +392 $2.94 392 13 Sep 2023 Direct
transaction MIRM Common Stock Sale $12,544 -392 -100% $32.00 0 13 Sep 2023 Direct F1
transaction MIRM Common Stock Options Exercise $41,738 +14,216 $2.94 14,216 14 Sep 2023 Direct
transaction MIRM Common Stock Sale $454,912 -14,216 -100% $32.00 0 14 Sep 2023 Direct F1
holding MIRM Common Stock 289,198 13 Sep 2023 By The Grey Family Trust dated November 12,1999
holding MIRM Common Stock 93,750 13 Sep 2023 By The Grey 2018 Irrevocable Children's Trust

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 Stock Option (right to buy) Options Exercise $0 -392 -0.11% $0.000000 345,392 13 Sep 2023 Common Stock 392 $2.94 Direct F2
transaction MIRM Stock Option (right to buy) Options Exercise $0 -14,216 -4.1% $0.000000 331,176 14 Sep 2023 Common Stock 14,216 $2.94 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reported transaction occurred pursuant to a Rule 10b5-1 Plan adopted August 30, 2022.
F2 1/4th of the shares vest one year after November 5, 2018, and the balance of the shares vest in a series of 36 successive equal monthly installments at the end of each month thereafter. The shares subject to this option are early exercisable, subject to the Issuer's right of repurchase.