EX-32.1 4 chrs-20250930xex32d1.htm EX-32.1

Exhibit 32.1

CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officers of Coherus Oncology, Inc. (the “Registrant”) certify that the Quarterly Report of Coherus Oncology, Inc. on Form 10-Q for the quarterly period ended September 30, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

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Date: November 6, 2025 | By: | /s/ Dennis M. Lanfear
​ | Name: | Dennis M. Lanfear
​ | Title: | President and Chief Executive Officer
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Date: November 6, 2025 | By: | /s/ Bryan McMichael
​ | Name: | Bryan McMichael
​ | Title: | Chief Financial Officer

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This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Registrant under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.