Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

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 (Amendment No. )

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

Nikola Corporation

(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.

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[Social media post first used on May 29, 2024]

Time is running out. Every VOTE is vital right now. Keep the future moving forward and VOTE TODAY. Call Alliance Advisors at [phone] (toll-free), 1-551-210-9929 (international) or Click HERE [link to 2024 Annual Meeting landing page] to have your voice heard.

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[Email to stockholders first used on May 29, 2024]

Hi [name of stockholder],

As a valued Nikola stockholder, we appreciate your support in our mission to be pioneers for a zero-emission world. We have made measurable and exciting progress with our FCEVs and BEVs on North American roads. We’d like to remind you of the important role investors such as yourself have in helping to steer the future of Nikola. The deadline to vote is June 4, 2024 at 11:59 p.m. ET. We are counting on your vote so that we can keep executing at Nikola.

The Nikola team is available to answer any questions you may have.

Best regards,

Soei Shin

Head of Investor Relations

TO VOTE, CALL:

[phone] in North America,

[phone] if international,

or visit www.proxyvote.com

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[Flyer first mailed to stockholders on or about May 29, 2024]

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[Social media post to be first used on or about May 30, 2024]

#NKLA stockholders, less than a week to VOTE! This vote is crucial to keep the future moving forward. Call Alliance Advisors at [phone] (toll-free) or 1-551-210-9929 (international) to make your voice count! [link to 2024 Annual Meeting landing page]

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