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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 ✓ ( 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 . or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to FORM 10 - K Indiana ( State or other jurisdiction of incorporation or organization ) First Internet Bancorp ( Exact Name of Registrant as Specified in its Charter ) 11201 USA Parkway Fishers , Indiana ( Address of principal executive offices ) Commission File Number 001-35750 ( 317 ) 532-7900 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbols INBK INBKL INBKZ Title of each class Common stock , without par value 6.0 % Fixed to Floating Subordinated Notes due 2026 6.0 % Fixed to Floating Subordinated Notes due 2029 20-3489991 ( I.R.S. Employer Identification No. ) 46037 ( Zip Code ) Name of exchange on which registered The Nasdaq Stock Market LLC The Nasdaq Stock Market LLC The Nasdaq Stock Market LLC Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes No p 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 No p Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or Section 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 p 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 ( §232.405 of this chapter ) during the preceding 12 months ( or such shorter period that the registrant was required to submit such files ) . Yes p 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 .