EX-32.1 4 osbc-20140930ex321d18d8b.htm EX-32.1

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 Old Second Bancorp, I nc. (the “Company”) on Form 10-Q for the period ending September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William B Skoglund, Chief Executive Officer of the Company, 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 result of operations of the Company.

Ay 13 |  |
| /s/ William B. Skoglund |
|  | William B. Skoglund
|  | Chairman of the Board, Director
|  | President and Chief Executive Officer (principal executive officer)
November 1 2, 201 4 |  |

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