C3.ai, Inc.

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:

C3.ai, 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):

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

Dear Stockholder:

We are pleased to invite you to attend the 2026 Annual Meeting of Stockholders of C3.ai, Inc., a Delaware corporation (the “Annual Meeting”). The Annual Meeting will be held virtually on Monday, October 26, 2026, at 10:00 a.m. Pacific Time, via live webcast at www.virtualshareholdermeeting.com/AI2026.

The Annual Meeting will be held for the following purposes, which are more fully described in the accompanying materials:

1. To elect the three Class III director nominees named in the accompanying proxy statement, each to hold office until our 2029 Annual Meeting of Stockholders, and until his or her successor is duly elected and qualified or until his or her earlier death, resignation, or removal;

2. To approve, on an advisory basis, the compensation of our named executive officers, as disclosed in this proxy statement;

3. To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending April 30, 2027;

4. To approve the amendment and restatement of the Company’s 2020 Equity Incentive Plan; and

5. To conduct any other business properly brought before the Annual Meeting.

On or about September 14, 2026, we expect to mail to our stockholders a Notice of Internet Availability of Proxy Materials containing instructions on how to access the Proxy Statement and our Annual Report on Form 10-K for the fiscal year ended April 30, 2026 (the “2026 Annual Report”). The Notice of Internet Availability of Proxy Materials provides instructions on how to vote online or by telephone and how to receive a paper copy of proxy materials by mail. The Proxy Statement for the Annual Meeting and our 2026 Annual Report can be accessed directly at www.proxyvote.com using the control number located on your Notice of Internet Availability of Proxy Materials, on your proxy card, or in the instructions that accompanied your proxy materials.

A list of stockholders entitled to vote will be available for a 10-day period ending on the day before the Annual Meeting at our headquarters located at 1400 Seaport Blvd, Redwood City, California 94063. If you would like to view the stockholder list, please contact our Investor Relations department at ir@c3.ai.

Our board of directors has fixed the close of business on September 4, 2026, as the record date for the Annual Meeting. Only stockholders of record at the close of business on September 4, 2026, are entitled to notice of, and to vote at, the Annual Meeting.

By Order of the Board of Directors,

Thomas M. Siebel

Chief Executive Officer and Chairman

August 27, 2026

Your vote is important. Whether or not you plan to attend the Annual Meeting, please ensure that your shares are voted during the Annual Meeting by signing and returning a proxy card or by using our internet or telephonic voting system. Even if you have voted by proxy, you may still vote online if you attend the Annual Meeting. Please note, however, that if your shares are held on your behalf by a broker, bank, or other nominee and you wish to vote at the Annual Meeting, you must obtain a proxy issued in your name from that nominee.

Proxy Statement for 2026 Annual Meeting of Stockholders

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