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( Mark One ) Annual Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the fiscal year ended December 31 , 2020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K or Transition Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 001-34279 Title of each class Common Stock G GULF ISLAND GULF ISLAND FABRICATION , INC . ( Exact name of registrant as specified in its charter ) Louisiana ( State or other jurisdiction of incorporation or organization ) 16225 Park Ten Place , Suite 300 Houston , Texas ( Address of principal executive offices ) Large accelerated filer Non - accelerated filer 72-1147390 ( I.R.S. Employer Identification Number ) ( 713 ) 714-6100 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) GIFI 77084 ( Zip code ) Name of each exchange on which registered NASDAQ Securities registered pursuant to Section 12 ( g ) of the Act : None No X No > Indicate by check mark if 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 Indicate by check mark whether the registrant has submitted electronically , every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S T during the preceding twelve 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 , or a smaller reporting company . See definitions of " large accelerated filer , " " accelerated filer " and " smaller reporting company " in Rule 12b - 2 of the Exchange Act . ☐ 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 . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No | The aggregate market value of the voting and non - voting common equity held by non - affiliates of the registrant at June 30 , 2020 , was approximately $ 40,865,000 . The number of shares of the registrant's common stock , no par value per share , outstanding as of March 29 , 2021 , was 15,517,243 . DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's definitive Proxy Statement prepared for use in connection with the registrant's 2021 Annual Meeting of Shareholders have been incorporated by reference into Part III of this Form 10 - K .