EX-32.2 8 mtva-20251231xex32d2.htm EX-32.2

Exhibit 32.2

​

Certification of Chief Financial Officer

under Section 906 of the Sarbanes-Oxley Act of 2002

(18 U.S.C. § 1350)

​

In connection with the Annual Report of MetaVia Inc. (the “Company”) on Form 10-K for the year ended December 31, 2025 as filed with the Securities and Exchange Commission (the “Report”), I, Marshall H. Woodworth, Chief Financial Officer, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

​

| (1) | the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |

​

| (2) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |

​

​

​ | ​
Date: March 26, 2026 | /s/ Marshall H. Woodworth
​ | Chief Financial Officer
​ | (Principal Financial Officer)
​ |

​

​