Authentec Inc (AUTH)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On November 4, 2009, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter ended October 2, 2009 and certain other information. A copy of this press release is attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 6, 2009, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter ended July 3, 2009 and certain other information. A copy of this press release is attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Use of Non-GAAP Measures

In addition to disclosing financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP), this press release and the accompanying tables contain non-GAAP financial measures. AuthenTec believes this non-GAAP earnings information provides meaningful insight into the Company’s performance and has chosen to provide this information to investors for a more consistent basis of comparison. For a description of these non-GAAP financial measures and reconciliations of these on-GAAP financial measures to the most directly comparable GAAP financial measures, please see the section of Press Release titled “GAAP to non-GAAP reconciliation”.

d) Exhibits:

(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT)

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

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 files).    Yes  ¨    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

At May 13, 2009 there were 28,619,649 shares of common stock outstanding.

Table of Contents

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On February 17, 2009, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter and full year ended January 2, 2009 and certain other information. A copy of this press release is attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Use of Non-GAAP Measures

In addition to disclosing financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP), this press release and the accompanying tables contain non-GAAP financial measures. AuthenTec believes this non-GAAP earnings information provides meaningful insight into the Company’s performance and has chosen to provide this information to investors for a more consistent basis of comparison. For a description of these non-GAAP financial measures and reconciliations of these

non-GAAP financial measures to the most directly comparable GAAP financial measures, please see the section of Press Release titled “GAAP to non-GAAP reconciliation.”

d) Exhibits:

99.1 Press Release dated February 17, 2009, regarding financial results.

(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT)

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

At November 7, 2008 there were 28,617,920 shares of common stock outstanding.

Table of Contents

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On October 30, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter ended October 3, 2008 and certain other information. A copy of this press release is attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Use of Non-GAAP Measures

In addition to disclosing financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP), this press release and the accompanying tables contain non-GAAP financial measures. AuthenTec believes this non-GAAP earnings information provides meaningful insight into the Company’s performance and has chosen to provide this information to investors for a more consistent basis of comparison. For a description of these non-GAAP financial measures and reconciliations of these on-GAAP financial measures to the most directly comparable GAAP financial measures, please see the section of Press Release titled “GAAP to non-GAAP reconciliation”.

d) Exhibits:

99.1 Press Release dated October 30, 2008, regarding financial results.

(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT)

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

At August 6, 2008 there were 28,481,476 shares of common stock outstanding.

Table of Contents

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On July 28, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter ended June 27, 2008 and certain other information. A copy of this press release is attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Use of Non-GAAP Measures

In addition to disclosing financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP), this press release and the accompanying tables contain non-GAAP financial measures. AuthenTec believes this non-GAAP earnings information provides meaningful insight into the Company’s performance and has chosen to provide this information to investors for a more consistent basis of comparison. For a description of these non-GAAP financial measures and reconciliations of these on-GAAP financial measures to the most directly comparable GAAP financial measures, please see the section of Press Release titled “GAAP to non-GAAP reconciliation”.

d) Exhibits:

99.1 Press Release dated July 28, 2008, regarding financial results.

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On June 26, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) issued a press release announcing that William “Bill” Washecka, 61, has been elected to its Board of Directors. Mr. Washecka, a 37-year technology industry veteran, succeeds Sierra Ventures’ Ben Yu on AuthenTec’s six-member Board.

Bill Washecka is a certified public accountant and currently serves as a director on the board of Online Resources Corporation, a provider of online banking and payment services, and Avalon Pharmaceuticals, a biopharmaceutical company focused on the discovery and development of potential first-in-class cancer therapeutics. He earned a Bachelor of Science degree in accounting from the Bernard M. Baruch College of the City University of New York. He has also completed an executive management program at the Kellogg School of Business at Northwestern University.

Mr. Yu, who also served as Chairman of the Company’s Compensation Committee, resigned from the Board of Directors on June 23, 2008. Such resignation was not based upon a disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

Mr. Washecka was elected to the Board of Directors, and appointed as Chairman of the Audit Committee of the Board of Directors, on June 23, 2008. Mr. Washecka meets the qualifications of “financial expert” under applicable Securities and Exchange Commission and NASDAQ Marketplace rules.

A copy of the release is attached hereto as Exhibit 99.1.

(d) Exhibits:

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On May 6, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced that the U.S. District Court of Northern California issued an order in favor of AuthenTec, ruling that its products do not infringe either of the two patents asserted in a lawsuit by Atmel Corporation (NASDAQ: ATML). The summary judgment concludes that none of AuthenTec’s products infringe any of the patent claims as alleged in a lawsuit filed by Atmel in March 2006. The court also awarded AuthenTec certain costs related to the suit. A copy of this press release in attached hereto as Exhibit 99.1. As in any case, Atmel can appeal the ruling by the Court.

d) Exhibits:

99.1 Press Release dated May 6, 2008, regarding summary judgment in Atmel patent litigation lawsuit.

(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT)

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

At April 30, 2008 there were 28,177,368 shares of common stock outstanding.

Table of Contents

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On April 16, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced acquisition of the software assets of EzValidation, formerly a California-based provider of fingerprint sensor authentication and user interface software. This asset purchase is being recorded as in-process R&D and will be dilutive to AuthenTec’s first quarter earnings per share by $0.01 per share. However, first quarter non-GAAP earnings per share are still expected to be in a range of $0.01 to $0.02, per the guidance provided by the Company on February 4, 2008. A copy of this press release in attached hereto as Exhibit 99.1.

d) Exhibits:

99.1 Press Release dated April 16, 2008, regarding financial results.

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On February 4, 2008, AuthenTec, Inc. (“AuthenTec” or the “Company”) announced its financial results for the fiscal quarter ended December 28, 2007 and certain other information. A copy of this press release in attached hereto as Exhibit 99.1.

The information in this Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Use of Non-GAAP Measures

In addition to disclosing financial measures prepared in accordance with Generally Accepted Accounting Principles (GAAP), this press release and the accompanying tables contain non-GAAP financial measures. AuthenTec believes this non-GAAP earnings information provides meaningful insight into the Company’s performance and has chosen to provide this information to investors for a more consistent basis of comparison. For a description of these non-GAAP financial measures and reconciliations of these on-GAAP financial measures to the most directly comparable GAAP financial measures, please see the section of Press Release titled “GAAP to non-GAAP reconciliation”.

d:) Exhibits:

(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT)

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes   ¨    No  x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer  ¨    Accelerated filer  ¨    Non-accelerated filer  x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

At November 1, 2007 there were 26,913,291 shares of common stock outstanding.

Table of Contents

Table of Contents