[Form 4] CuriosityStream Inc. Insider Trading Activity

Rhea-AI Filing Summary

CuriosityStream Inc. (CURI) Chief Financial Officer P. Brady Hayden reported a small sale of company stock in a Form 4 filing. On 11/17/2025, an entity affiliated with him sold 1,343 shares of common stock at a price of $4.50 per share, coded as an open market sale. The transaction was carried out under a pre-arranged Rule 10b5-1 trading plan that Mr. Hayden entered into on May 30, 2025.

After this sale, Mr. Hayden continues to report indirect beneficial ownership of 121,141 shares of CuriosityStream common stock held by the P. Brady Hayden Revocable Trust, where he serves as trustee and sole beneficiary, and an additional 25,000 shares held by Plan Z, LLC, of which he is the managing member.

Insights

Insider transactions analyst

Small planned insider sale by CURI's CFO under a 10b5-1 plan.

The filing shows CuriosityStream’s CFO, P. Brady Hayden, reporting the sale of 1,343 shares of common stock at $4.5 per share on 11/17/2025. The transaction is marked as an open market sale and is tied to a pre-established Rule 10b5-1 trading plan entered into on May 30, 2025, which is designed to systematize trades and help reduce concerns about trading on undisclosed information.

Following this transaction, Mr. Hayden continues to report substantial indirect holdings: 121,141 shares held through the P. Brady Hayden Revocable Trust and 25,000 shares held through Plan Z, LLC. These positions indicate that, despite the sale, he maintains significant exposure to CuriosityStream’s equity. The event is a routine insider trade disclosure, and its impact on the broader investment thesis is limited based on the provided figures.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hayden Phillip Brady

(Last) (First) (Middle)

8484 GEORGIA AVENUE

SUITE 700

(Street)

SILVER SPRING MD 20910

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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
Common Stock	11/17/2025		S		1,343(1)	D	$4.5	121,141	I	Held by P. Brady Hayden Revocable Trust, of which Mr. Hayden is the trustee.(2)
Common Stock								25,000	I	Held by Plan Z, LLC, of which Mr. Hayden is managing member.

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Shares sold pursuant to a 10b5-1 plan which Mr. Hayden entered into on May 30, 2025.

2. The reporting person is trustee of the trust, and the reporting person is the sole beneficiary of the trust. The reporting person remains the beneficial owner of the securities held by the trust.

Remarks:

	/s/ P. Brady Hayden	11/17/2025
	** Signature of Reporting Person	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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did CuriosityStream (CURI) disclose in this Form 4?

The filing reports that CURI Chief Financial Officer P. Brady Hayden sold 1,343 shares of common stock on 11/17/2025 at a price of $4.50 per share in an open market transaction.

Was the CuriosityStream (CURI) CFO trade made under a Rule 10b5-1 plan?

Yes. The filing explains that the 1,343-share sale on 11/17/2025 was made pursuant to a Rule 10b5-1 trading plan that Mr. Hayden entered into on May 30, 2025.

How many CuriosityStream (CURI) shares does the CFO report owning after the transaction?

After the reported sale, Mr. Hayden reports indirect beneficial ownership of 121,141 shares held by the P. Brady Hayden Revocable Trust and 25,000 shares held by Plan Z, LLC.

In what capacity does P. Brady Hayden hold CuriosityStream (CURI) shares through the revocable trust?

Mr. Hayden is the trustee and sole beneficiary of the P. Brady Hayden Revocable Trust, and he remains the beneficial owner of the 121,141 CuriosityStream shares held by that trust.

What role does P. Brady Hayden have at CuriosityStream (CURI)?

The reporting person, P. Brady Hayden, is identified as an officer of CuriosityStream Inc., serving as its Chief Financial Officer.

Are there any derivative securities reported for CuriosityStream (CURI) in this Form 4?

The Form 4 includes a section for derivative securities, but in the provided content there are no specific derivative transactions listed with amounts or dates.