James E. Flynn - Jun 6, 2022 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)

Role: * Possible Member of 10% Group, 10%+ Owner
Signature: /s/ Jonathan Isler, Attorney-in-Fact
Stock symbol: MIRM
Transactions as of: Jun 6, 2022
Transactions value $: -$962,256
Form type: 4
Date filed: 6/8/2022, 07:25 PM
Previous filing: May 10, 2022
Next filing: Jun 20, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MIRM	Common Stock	Sale	-$332K	-13.1K	-0.76%	$25.29	1.71M	Jun 6, 2022	Through Deerfield Private Design Fund IV, L.P.	F1, F2
transaction	MIRM	Common Stock	Sale	-$300K	-11.9K	-0.76%	$25.29	1.55M	Jun 6, 2022	Through Deerfield Healthcare Innovations Fund, L.P.	F1, F2
transaction	MIRM	Common Stock	Sale	-$4.29K	-171	-0.01%	$25.08	1.71M	Jun 6, 2022	Through Deerfield Private Design Fund IV, L.P.	F1, F2
transaction	MIRM	Common Stock	Sale	-$3.89K	-155	-0.01%	$25.08	1.55M	Jun 6, 2022	Through Deerfield Healthcare Innovations Fund, L.P.	F1, F2
transaction	MIRM	Common Stock	Sale	-$169K	-6.91K	-0.4%	$24.47	1.7M	Jun 6, 2022	Through Deerfield Private Design Fund IV, L.P.	F1, F2
transaction	MIRM	Common Stock	Sale	-$153K	-6.24K	-0.4%	$24.47	1.54M	Jun 6, 2022	Through Deerfield Healthcare Innovations Fund, L.P.	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

James E. Flynn is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV"). Deerfield Mgmt HIF, L.P. is the general partner of Deerfield Healthcare Innovations Fund, L.P. (collectively with Fund IV, the "Funds"). Deerfield Management Company, L.P. is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt HIF, L.P. and Deerfield Management Company, L.P.
F2	In accordance with Instruction 4 (b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Content

This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV"). Deerfield Mgmt HIF, L.P. is the general partner of Deerfield Healthcare Innovations Fund, L.P. (collectively with Fund IV, the "Funds"). Deerfield Management Company, L.P. is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt HIF, L.P. and Deerfield Management Company, L.P.

In accordance with Instruction 4 (b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Remarks:

Jonathan Isler, Attorney-in-Fact: Power of Attorney, which is hereby incorporated by reference to Exhibit 24 to a Form 4 with regard to DA32 Life Science Tech Acquisition Corp. filed with the Securities and Exchange Commission on August 3, 2021 by Deerfield Partners, L.P., Deerfield Mgmt, L.P., Deerfield Management Company, L.P. and James E. Flynn.