Sec Form 4 Filing - Hayden Phillip Brady @ CuriosityStream Inc. - 2024-10-09

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Hayden Phillip Brady 2. Issuer Name and Ticker or Trading Symbol CuriosityStream Inc. [ CURI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 8484 GEORGIA AVE, SUITE 700 3. Date of Earliest Transaction (MM/DD/YY) 10/09/2024 (Street) SILVER SPRING, MD20910 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units ( 1 ) ( 2 ) 10/09/2024 A 152,500 ( 1 )( 2 ) ( 1 )( 2 ) Common Stock 152,500 $ 0 152,500 D

Reporting Owners Reporting Owner Name / Address Relatio nships Director 10% Owner Officer Other Hayden Phillip Brady 8484 GEORGIA AVE SUITE 700 SILVER SPRING, MD20910 Chief Financial Officer Signatures /s/ P. Brady Hayden 10/11/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On October 9, 2024, the Company granted Mr. Hayden 152,500 restricted stock units (RSUs) under the 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of common stock. The RSUs granted are performance-based, subject to the Company achieving certain adjusted free cash flow (AFCF) objectives during the period from October 1, 2024, to September 30, 2025 (Performance Period). ( 2 )The RSUs granted will vest one third upon the date the Board determines the Company has achieved AFCF of $4,500,000 during the Performance Period ("First Condition"); and two thirds upon the date the Board determines the Company has achieved AFCF of $9,000,000 during the Performance Period ("Second Condition," together with the First Condition, the "Performance Conditions"); in the event that neither Performance Condition is met, the RSUs granted will be cancelled; in the event that the First Condition is met but the Second Condition is not, the remaining two thirds of unvested RSUs will be cancelled. All vesting events are subject to continued employment on each applicable vesting date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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