SEC Form 4 · accession 0001628280-26-050205

CuriosityStream Inc. · CURI

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Financial Officer

Period of report

Jul 24, 2026

Accepted (ET)

Jul 28, 2026 · 4:33 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001776909

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Jul 24, 2026	M	17,500	—	A	17,500	D
Common Stock^F3	Jul 24, 2026	F	7,836	$2.35	D	9,664	D
Common Stock^F4	Jul 27, 2026	G	9,664	$0.00	D	0	D
Common Stock^F4	Jul 27, 2026	G	9,664	$0.00	A	80,931	I	Held by P. Brady Hayden Revocable Trust, of which Mr. Hayden is the trustee.
Common Stock	holding	—	—		—	25,000	I	Held by Plan Z, LLC, of which Mr. Hayden is managing member.

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Restricted Stock Units^F1,F2	—	Jul 24, 2026	M	17,500	D	—	—	Common Stock	17,500	52,500	D

F1On July 25, 2025, the Company granted Mr. Hayden 70,000 restricted stock units ("RSUs") under the Company's 2020 Omnibus Incentive Plan. The RSUs granted may vest in four tranches of 17,500 each upon the date the Board determines that the applicable performance condition has been achieved: (i) the common stock of the Company achieves a 10-day volume weighted average price (VWAP) of $6.50; (ii) the common stock achieves a 10-day VWAP of $7.50; (iii) the common stock achieves a 10-day VWAP of $9.50; and (iv) the common stock achieves a 10-day VWAP of $11.50. In the event that the Performance Conditions are not met, the RSUs granted will vest in four equal installments of 17,500 on each of the first, second, third and fourth anniversaries of the grant date, and will be settled upon vesting (or within 30 days thereafter). All vesting events are subject to continued employment on each applicable vesting date.
F2On July 24, 2026, 17,500 RSUs vested on the first anniversary of the grant date..
F3Represents the withholding of shares of the Company's common stock for tax purposes in connection with the vesting of restricted stock units previously granted.
F4Reflects the exempt transfer of 9,664 shares from Mr. Hayden to P. Brady Hayden Revocable Trust on July 27, 2026, for no consideration. The reporting person is trustee of the trust and the sole beneficiary of the trust. The reporting person remains the beneficial owner of the securities held by the trust.