Mirum Pharmaceuticals Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)

FOSTER CITY, Calif.--(BUSINESS WIRE)--Mirum Pharmaceuticals, Inc. (Nasdaq: MIRM) today announced that on November 10, 2025, the Compensation Committee of Mirum’s Board of Directors granted inducement awards consisting of non-qualified stock options to purchase 53,500 shares of common stock and 27,950 restricted stock units (“RSUs”) to 11 new employees under Mirum’s 2020 Inducement Plan. The Compensation Committee of Mirum’s Board of Directors approved the awards as an inducement material to the new employees’ employment in accordance with Nasdaq Listing Rule 5635(c)(4).

Each stock option has an exercise price per share equal to $69.71 per share, Mirum’s closing trading price on November 10, 2025, and will vest over four years, with 25% of the underlying shares vesting on the one-year anniversary of the applicable vesting commencement date and the balance of the underlying shares vesting monthly thereafter over 36 months, subject to the new employees’ continued service relationship with Mirum through the applicable vesting dates. The RSUs will vest over three years, with 33% of the underlying shares vesting on each anniversary of the applicable vesting commencement date, subject to the new employees’ continued service relationship with Mirum through the applicable vesting dates. The awards are subject to the terms and conditions of Mirum’s 2020 Inducement Plan and the terms and conditions of an applicable award agreement covering the grant.

About Mirum Pharmaceuticals, Inc.

Mirum Pharmaceuticals, Inc. is a biopharmaceutical company dedicated to transforming the treatment of rare diseases affecting children and adults. Mirum has three approved medications: LIVMARLI^® (maralixibat) oral solution/LIVMARLI^® (maralixibat) tablets, CHOLBAM^® (cholic acid) capsules, and CTEXLI® (chenodiol) tablets.

LIVMARLI, an IBAT inhibitor, is approved for the treatment of two rare liver diseases affecting children and adults. It is approved for the treatment of cholestatic pruritus in patients with Alagille syndrome in the U.S. (three months and older), in Europe (two months and older), and in other regions globally. It is also approved in the U.S. for cholestatic pruritus in PFIC patients 12 months of age and older; in Europe, it is approved for patients with PFIC three months of age and older. Mirum is conducting the Phase 3 EXPAND study, a label expansion opportunity for LIVMARLI in additional settings of cholestatic pruritus. CHOLBAM is FDA-approved for the treatment of bile acid synthesis disorders due to single enzyme deficiencies and adjunctive treatment of peroxisomal disorders in patients who show signs or symptoms of liver disease.

CTEXLI is FDA-approved for the treatment of cerebrotendinous xanthomatosis (CTX) in adults.

Mirum's late-stage pipeline includes two investigational treatments for several rare diseases.

Volixibat, an IBAT inhibitor, is being evaluated in two potentially registrational studies including the Phase 2b VISTAS study for primary sclerosing cholangitis (PSC) and Phase 2b VANTAGE study for primary biliary cholangitis. Volixibat has been granted Breakthrough Therapy Designation for the treatment of cholestatic pruritus in patients with PBC. Mirum has also initiated a Phase 2 study evaluating MRM-3379, a PDE4D inhibitor for the treatment of Fragile X syndrome, a rare genetic neurocognitive disorder.

To learn more about Mirum, visit mirumpharma.com and follow Mirum on Facebook, LinkedIn, Instagram and X.