Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934

www.investorvote.com/NODK Step 1: Go to www.investorvote.com/NODK. Step 2: Click on the icon on the right to view meeting materials. Step 3: Return to the investorvote.com window and follow the instructions on the screen to log in. Online Go to www.investorvote.com/NODK or scan the QR code — login details are located in the shaded bar below. The Sample Company NI Holdings, Inc. Meeting Notice 03MI5B + + Important Notice Regarding the Availability of Proxy Materials for the NI Holdings, Inc. Annual Meeting to be Held on May 24, 2022 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual shareholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report on Form 10-K are available at: Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before May 10, 2022 to facilitate timely delivery. 2NOT Easy Online Access — View your proxy materials and vote. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Step 4: Make your selections as instructed on each screen for your delivery preferences. Step 5: Vote your shares.

Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials. — Internet – Go to www.investorvote.com/NODK. — Phone – Call us free of charge at 1-866-641-4276. — Email – Send an email to investorvote@computershare.com with “Proxy Materials NI Holdings, Inc.” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, requests for a paper copy of proxy materials must be received by May 10, 2022. NI Holdings, Inc.’s Annual Meeting of Shareholders will be held on May 24, 2022 at The Clubhouse Hotel, 4400 15th Avenue South, Fargo, ND 58103, at 10:00 a.m. Central Daylight Time. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommends that you vote FOR the following proposals: 1. Election of Directors (Eric K. Aasmundstad, Cindy L. Launer and Stephen V. Marlow). 2. Proposal to ratify Mazars USA LLP as independent registered public accounting firm for the year ended December 31, 2022. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. NI Holdings, Inc. Meeting Notice

	¨	Preliminary Proxy Statement

	¨	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

	¨	Definitive Proxy Statement

	x	Definitive Additional Materials

	¨	Soliciting Material under §240.14a-12

	x	No fee required.

	¨	Fee paid previously with preliminary materials.

	¨	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Filed by the Registrant	x

Filed by a Party other than the Registrant	¨