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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 8-K
CURRENT REPORT PURSUANT
TO SECTION 13 OR 15(D) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of report (Date of earliest event reported): July 30, 2026

First Internet Bancorp
(Exact Name of Registrant as Specified in Its Charter)
Indiana
(State or Other Jurisdiction of Incorporation)
001-35750 |  | 20-3489991
(Commission File Number) |  | (IRS Employer Identification No.)
8701 E. 116th Street |  | 46038
Fishers, Indiana |
(Address of Principal Executive Offices) |  | (Zip Code)
(317) 532-7900
(Registrant's Telephone Number, Including Area Code)

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 (see General Instruction A.2. below):
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbols |  | Name of each exchange on which registered
Common Stock, without par value |  | INBK |  | The Nasdaq Stock Market LLC
6.0% Fixed to Floating Subordinated Notes due 2029 |  | INBKZ |  | The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
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. ¨

Item 2.02 Results of Operations and Financial Condition
On July 30, 2026, First Internet Bancorp (the “Company”) issued a press release announcing its financial results for the quarter ended June 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this report and is incorporated by reference herein.
On July 30, 2026 at 5:00 p.m. (Eastern Time), the Company will host a conference call and webcast to discuss its financial results for the quarter ended June 30, 2026. The electronic presentation slides, which will accompany the call and webcast, are furnished as Exhibit 99.2 and are incorporated by reference herein.
The information contained in this Item 2.02, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into any filing made by us under the Exchange Act or Securities Act of 1933, as amended, regardless of any general incorporation language in any such filing, except as shall be expressly set forth by specific reference in such filing.
Item 9.01 Financial Statements and Exhibits
(d) Exhibits

Number |  | Description |  | Method of filing
99.1 |  | Press release dated July 30, 2026 |  | Furnished electronically
99.2 |  | Presentation slides dated July 30, 2026 |  | Furnished electronically
104 |  | Cover Page Interactive Data File (embedded in the cover page formatted in inline XBRL) |  |

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

|  | Dated: | July 30, 2026
|  | FIRST INTERNET BANCORP
|  | By: | /s/ Kenneth J. Lovik
|  |  | Kenneth J. Lovik, Executive Vice President & Chief Financial Officer