Company: NODK
Filing Date: 2025-04-09
Form Type: DEFA14A
Source: 0001174947-25-000547
Chunk: 0

Company: NI Holdings, Inc.
Filing Date: 2025-04-09
Form: DEFA14A
Chunk 0
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 –––––––––––––––––––––––––––––––––– SCHEDULE 14A __________________________________ Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934

| Filed by the Registrant                    |     | ☒ |
| Filed by a Party other than the Registrant |     | ☐ |

Check the appropriate box:

| ☐ |     | Preliminary Proxy Statement                                                     |
| ☐ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☐ |     | Definitive Proxy Statement                                                      |
| ☒ |     | Definitive Additional Materials                                                 |
| ☐ |     | Soliciting Material under §240.14a-12                                           |

NI HOLDINGS, INC. (Name of Registrant as Specified In Its Charter)

–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ |     | 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. |

Online Go to www.investorvote.com/NODK or scan the QR code — login details are located in the shaded bar below. NI Holdings, Inc. Meeting Notice Important Notice Regarding the Availability of Proxy Materials for the NI Holdings, Inc. Annual Meeting to be Held on May 20, 2025 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