Mirum (NASDAQ: MIRM) insider files to sell 2,631 common shares

Rhea-AI Filing Summary

Mirum Pharmaceuticals insider Peter Radovich has filed a Form 144 indicating an intent to sell 2,631 shares of common stock through Morgan Stanley Smith Barney LLC on or about February 2, 2026 on NASDAQ, with an aggregate market value of $273,097.80.

The 2,631 shares were acquired on January 31, 2026 as restricted stock units vesting under a registered plan, as compensation for services to the issuer. In the prior three months, Radovich sold 2,382 shares for $222,300.69 on January 22, 2026 and 3,143 shares for $302,331.46 on January 26, 2026.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Morgan Stanley Smith Barney LLC 1 New York Plaza, 8th Floor New York NY 10004	2631	273097.80	51393574	02/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	01/31/2026	Restricted Stock Units vesting under registered plan	Issuer			2631	01/31/2026	Compensation for services rendered to Issuer

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Peter Radovich c/o Mirum Pharmaceuticals, Inc. 989 E Hillsdale Blvd., Suite 300 Foster City CA 94404	Common Stock	01/22/2026	2382	222300.69
Peter Radovich c/o Mirum Pharmaceuticals, Inc. 989 E. Hillsdale Blvd., Suite 300 Foster City CA 94404	Common Stock	01/26/2026	3143	302331.46

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Mirum Pharmaceuticals (MIRM) Form 144 filed by Peter Radovich disclose?

The filing shows Peter Radovich plans to sell 2,631 Mirum Pharmaceuticals common shares. The shares, worth $273,097.80 in aggregate, are to be sold on or about February 2, 2026 on NASDAQ through Morgan Stanley Smith Barney LLC, following recent vesting of restricted stock units.

How many Mirum Pharmaceuticals (MIRM) shares is the insider planning to sell?

The Form 144 reports a planned sale of 2,631 shares of Mirum Pharmaceuticals common stock. These shares have an aggregate market value of $273,097.80 and are expected to be sold on or about February 2, 2026, via Morgan Stanley Smith Barney LLC on NASDAQ.

How did Peter Radovich acquire the Mirum Pharmaceuticals (MIRM) shares being sold?

The 2,631 Mirum shares were acquired through restricted stock units vesting under a registered plan. The vesting and acquisition occurred on January 31, 2026, as compensation for services rendered to Mirum Pharmaceuticals, rather than through a cash purchase transaction.

What recent Mirum Pharmaceuticals (MIRM) stock sales has Peter Radovich completed?

In the past three months, Peter Radovich completed two Mirum stock sales. He sold 2,382 common shares for $222,300.69 on January 22, 2026, and 3,143 common shares for $302,331.46 on January 26, 2026, according to the Form 144 disclosure.

Which broker and exchange are involved in the Mirum Pharmaceuticals (MIRM) Form 144 sale?

The planned Mirum Pharmaceuticals share sale will be executed through Morgan Stanley Smith Barney LLC on NASDAQ. The broker’s listed address is 1 New York Plaza, 8th Floor, New York, NY 10004, and the filing identifies NASDAQ as the securities exchange for the transaction.

How many Mirum Pharmaceuticals (MIRM) shares are outstanding as referenced in the Form 144?

The Form 144 lists 51,393,574 Mirum Pharmaceuticals common shares as outstanding. This outstanding share figure provides context for the reported 2,631-share planned sale, which represents a very small portion of the total common stock base referenced in the filing.