UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K/A

þ Annual Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2012

Commission File #0-16640

(Exact name of registrant as specified in its charter)

Michigan	38-2606280
(State or other jurisdiction of incorporation or organization)	( I.R.S. Employer Identification No.)

2723 South State Street, Ann Arbor, MI 48104

(Address of principal executive offices)

Registrant's telephone number, including area code: (517) 423-8373

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:

Common Stock, no par value

(Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o No þ

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such file).Yes þNo o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. þ

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.

Large Accelerated Filer o Accelerated Filer o

Non-Accelerated Filer o (do not check if a smaller reporting company) Smaller reporting company þ

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

Yes o No þ

As of June 30, 2012, the aggregate market value of the common stock held by non-affiliates of the registrant was $41,811,000, based on a closing sale price of $3.40 as reported on the OTCQB market.

As of January 31, 2013, there were 12,705,983 outstanding shares of registrant's common stock, no par value.

United Bancorp, Inc. is filing this Amendment No. 1 (this "Amendment") to the Annual Report on Form 10-K for the year ended December 31, 2012, originally filed with the Commission on March 1, 2013 (the "Original Report"), solely for the purpose of furnishing the Interactive Data File exhibits required by Item 601(b)(101) of Regulation S-K. No other changes have been made to the Original Report.

Item 6 – Exhibits

The exhibits filed in response to Item 601 of Regulation S-K are listed in the Exhibit Index, which is here incorporated by reference.

Page 2

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

	United Bancorp, Inc.

By	/s/ Robert K. Chapman	March 1, 2013
	Robert K. Chapman, President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

/s/ Robert K. Chapman	Director, President and Chief Executive Officer (Principal Executive Officer)	March 1, 2013
Robert K. Chapman

/s/ Randal J. Rabe	Executive Vice President and Chief Financial Officer (Principal Financial Officer)	March 1, 2013
Randal J. Rabe


/s/ Karen F. Andrews	Director	March 1, 2013
Karen F. Andrews*

/s/ Stephanie H. Boyse	Director	March 1, 2013
Stephanie H. Boyse*

/s/ James D. Buhr	Director	March 1, 2013
James D. Buhr *

/s/ Kenneth W. Crawford	Director	March 1, 2013
Kenneth W. Crawford *

/s/ John H. Foss	Director	March 1, 2013
John H. Foss*

/s/ Norman G. Herbert	Director	March 1, 2013
Norman G. Herbert*

/s/ James C. Lawson	Chairman of the Board	March 1, 2013
James C. Lawson*

/s/ Len M. Middleton	Director	March 1, 2013
Len M. Middleton*

*By	/s/ Robert K. Chapman
	Robert K. Chapman, Attorney-in-Fact

Page 3

EXHIBIT INDEX

Exhibit		Description
23.		Consent of Independent Registered Public Accounting Firm.
24. *		Powers of Attorney.
31.1		Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2		Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1		Certification pursuant to 18 U.S.C. Section 1350.
EX-101.ins		XBRL Taxonomy Extension Definition Linkbase Document **
EX-101.sch		XBRL Taxonomy Extension Schema Document **
EX-101.def		XBRL Taxonomy Extension Definition Linkbase Document **
EX-101.cal		XBRL Taxonomy Extension Calculation Linkbase Document **
EX-101.lab		XBRL Taxonomy Extension Label Linkbase Document **
EX-101.pre		XBRL Taxonomy Extension Presentation Linkbase Document **

*		Filed with the Annual Report on Form 10-K filed with the SEC on March 1, 2013
**		Furnished, not filed, herewith