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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , DC 20549 Form 10 - K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission File Number 000-27115 PCTEL , Inc. ( Exact Name of Registrant as Specified in Its Charter ) Delaware ( State or Other Jurisdiction of Incorporation or Organization ) 471 Brighton Drive , Bloomingdale IL ( Address of Principal Executive Office ) to Title of each class Common Stock , $ .001 Par Value Per Share 77-0364943 ( I.R.S. Employer Identification Number ) ( 630 ) 372-6800 ( Registrant's Telephone Number , Including Area Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) . 60108 ( Zip Code ) Name of each exchange on which registered The Nasdaq Global Select Market PCTI Securities registered pursuant to Section 12 ( g ) of the Act : None No Indicate by check mark whether the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes 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 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 No X Indicate by checkmark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files ) ) . Yes No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer " , " accelerated filer " , " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act .: Large accelerated filer Non - accelerated filer Accelerated filer Smaller reporting company Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . □ Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Yes > No Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No As of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , there were 18,640,295 shares of the registrant's common stock outstanding , and the aggregate market value of such shares held by non - affiliates of the registrant ( based upon the closing sale price of such shares on the Nasdaq Global Select Market on June 30 , 2020 ) was approximately $ 125,517,171 . Shares of the registrant's common stock held by each executive officer and director and by each entity that owns 5 % or more of the registrant's outstanding common stock have been excluded because such persons may be deemed to be affiliates . This determination of affiliate status is not necessarily a conclusive determination for any other purposes . 18,530,687 shares of common stock were issued and outstanding as of March 12 , 2021 . Documents Incorporated by Reference Certain sections of the registrant's definitive proxy statement relating to its 2021 Annual Stockholders ' Meeting to be held on May 26 , 2021 are incorporated by reference into Part III of this Annual Report on Form 10 - K . The Company intends to file its proxy statement within 120 days after the end of its fiscal year end to which this report relates .