EX-32.1 4 frmi-20260331xex321.htm EX-32.1 CERTIFICATIONS OF EXECUTIVES
Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report of Fermi Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2026 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned hereby certifies, in their capacity as Principal Executive Officer and Principal Financial Officer, respectively, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, as amended, that to their knowledge:
1.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
2.The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company as of, and for, the periods presented in the Report.
Date: May 14, 2026

| /s/ Jacobo Ortiz Blanes
| Jacobo Ortiz Blanes
| Co-President of the Office of the Chief Executive Officer
| (Principal Executive Officer)

Date: May 14, 2026

| /s/ Robert L. Masson
| Robert L. Masson
| Interim Chief Financial Officer
| (Principal Financial Officer and Principal Accounting Officer)

The foregoing certifications are being furnished as an exhibit to the Report pursuant to Item 601(b)(32) of Regulation S-K and Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) and, accordingly, are not being filed as part of the Report for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.