CuriosityStream Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A INFORMATION

(Rule 14a-101)

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:

(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 the appropriate box):

Notice of

2026 Annual Meeting

of Stockholders and

Proxy Statement

ANNUAL MEETING

Wednesday, May 20, 2026

11:00 a.m. Eastern Time

Online Meeting Only - No Physical Meeting Location

Dear Stockholder:

On behalf of our Board of Directors, I cordially invite you to participate in the 2026 Annual Meeting of stockholders (the “Annual Meeting”) of CuriosityStream Inc. (“CuriosityStream” or the “Company”), to be held on May 20, 2026, at 11:00 a.m. Eastern Time.

We will hold our Annual Meeting in a virtual-only format, which will be conducted via a live webcast. You will be able to participate in the Annual Meeting, vote your shares electronically and submit questions during the meeting by visiting www.virtualshareholdermeeting.com/CURI2026 and using the control number which appears on your Notice of Internet Availability of Proxy Materials. Stockholders will have an equal opportunity to participate in the Annual Meeting online regardless of their geographic location.

The attached Notice of Annual Meeting of Stockholders and Proxy Statement contain details of the business to be conducted at the Annual Meeting and the procedures for participating, submitting questions and voting at the virtual meeting.

Whether or not you attend the Annual Meeting, it is important that your shares be represented and voted at the meeting. Therefore, we urge you to promptly vote and submit your proxy via the Internet, by phone or by mail.

On behalf of the Company’s Board of Directors, we would like to express our appreciation for your continued support of and interest in CuriosityStream.

By Order of the Board,

/s/ Tia Cudahy

Chief Operating Officer

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON MAY 20, 2026

NOTICE IS HEREBY GIVEN that the annual meeting of the stockholders of CuriosityStream Inc., a Delaware corporation (“CuriosityStream” or the “Company”), will be held virtually, via a live webcast by visiting www.virtualshareholdermeeting.com/CURI2026, at 11:00 a.m. Eastern Time, on May 20, 2026 (the “Annual Meeting”). Stockholders attending the virtual meeting will be afforded the same rights and opportunities to participate in the Annual Meeting as they would be afforded at an in-person meeting.

To enter the Annual Meeting, you will need the control number that appears on your Notice of Internet Availability of Proxy Materials, proxy card and the instructions that accompanied your proxy materials. The Company recommends you log in at least 15 minutes before the start of the Annual Meeting to ensure you are logged in when the meeting begins. Please note that you will not be able to attend the Annual Meeting in person.

At the Annual Meeting, stockholders will be asked to:

Our board of directors (the “Board”) has fixed the close of business on March 27, 2026, as the record date for the Annual Meeting (the “Record Date”). Only stockholders of record on the Record Date will be entitled to receive notice of, and to vote at, the Annual Meeting. A list of the names of stockholders entitled to vote at the Annual Meeting will be available for examination by any stockholder for 10 days before the Annual Meeting for any purpose germane to the Annual Meeting at our principal executive offices during normal business hours. Such list will also be available during the virtual Annual Meeting for examination by any stockholder at www.virtualshareholdermeeting.com/CURI2026. Further information regarding voting rights and the matters to be voted upon is presented in the accompanying Proxy Statement. In addition, financial and other information about the Company is contained in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Annual Report”), as filed with the Securities and Exchange Commission (the “SEC”) on March 12, 2026, which incorporates by reference certain sections of the accompanying Proxy Statement.

YOUR VOTE IS VERY IMPORTANT TO US. Whether or not you plan to virtually attend the Annual Meeting, we strongly encourage you to vote by Internet, by phone or by signing, dating and returning your proxy card (if you request a paper copy) at your earliest convenience. Sending in your proxy card will not prevent you from voting your shares at the Annual Meeting, if you desire to do so.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE VIRTUAL ANNUAL MEETING TO BE HELD ON MAY 20, 2026. This Notice of Annual Meeting of Stockholders and Proxy Statement, along with a proxy card, was first mailed on or about April 9, 2026 to our stockholders of record as of the Record Date. Our proxy materials, including the Proxy Statement and Annual Report to stockholders, are also available at the following websites: https://investors.curiositystream.com/ and www.virtualshareholdermeeting.com/CURI2026.

If you have any questions or need assistance with voting, please contact CuriosityStream’s proxy solicitor, MacKenzie Partners, Inc., toll-free at 1-800-322-2885 or by email at proxy@mackenziepartners.com.

By Order of the Board,

/s/ Tia Cudahy

Chief Operating Officer

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