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
I, Gilbert G. Lundstrom, Chairman of the Board and Chief Executive Officer of TierOne Corporation (the “Company”), hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:
| (1) | The Annual Report on Form 10-K of the Company for the year ended December 31, 2007, as amended pursuant to Amendment No. 1 to the Annual Report on Form 10-K (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and |
| (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
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Date: April 25, 2008 | By: /s/ Gilbert G. Lundstrom |
| Gilbert G. Lundstrom |
| Chairman of the Board |
| and Chief Executive Officer |