[Form 4] CuriosityStream Inc. Insider Trading Activity

Rhea-AI Filing Summary

Insider sales by CuriosityStream CFO under a Rule 10b5-1 plan. P. Brady Hayden, Chief Financial Officer, reported sales of common stock under a pre-established 10b5-1 plan entered May 30, 2025. On 08/29/2025 he sold 35,578 shares at a weighted average price of $4.414 and, on 09/02/2025, he sold 16,149 shares at $4.56. The filing states those sales were executed in multiple tranches at prices ranging from $4.24 to $4.64. After the reported 08/29 sale Mr. Hayden beneficially owned 54,474 shares (indirectly via the P. Brady Hayden Revocable Trust) and after the 09/02 sale he beneficially owned 38,325 shares. He also beneficially owns 25,000 shares held by Plan Z, LLC, of which he is the managing member.

Positive

• Sales executed under a documented 10b5-1 plan, which supports an affirmative defense to insider trading concerns.
• Clear disclosure of indirect ownership (P. Brady Hayden Revocable Trust and Plan Z, LLC) and willingness to provide per-tranche pricing increases transparency.
• Form 4 is signed and dated, meeting Section 16 reporting formalities.

Negative

• Reduction in beneficial holdings: reported beneficial ownership decreased from 54,474 to 38,325 shares after sales.
• Marketable insider sales could be interpreted by some investors as liquidity-taking, though no company performance data is provided.

Insights

Financial Analyst

TL;DR: Insider sold shares via a pre-set 10b5-1 plan; transactions are routine disclosures that reduce reported beneficial holdings.

The filing documents planned dispositions by the CFO rather than open-market, ad-hoc sales, which can mitigate timing concerns. Quantities are modest relative to typical market-capitalization-level insider transactions for larger issuers, and prices span $4.24–$4.64. The disclosure of the weighted average and offer to provide per-tranche pricing enhances transparency. There is no accompanying operational or financial data in this Form 4 to imply company performance trends.

Corporate Governance Expert

TL;DR: Use of a documented 10b5-1 plan is governance-appropriate; the Form 4 properly discloses indirect holdings and trust relationships.

The report identifies the reporting person’s officer role and details indirect ownership via a revocable trust and an LLC, which is consistent with disclosure standards. The explicit statement that the sales were pursuant to a 10b5-1 plan and the signer’s attestation satisfy Section 16 reporting requirements. No governance red flags or departures from filing norms are evident in this submission.

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 AVE

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)
08/29/2025

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	08/29/2025		S		35,578(1)	D	$4.414(2)	54,474	I	Held by P. Brady Hayden Revocable Trust, of which Mr. Hayden is the trustee.
Common Stock	09/02/2025		S		16,149(1)	D	$4.56	38,325	I	Held by P. Brady Hayden Revocable Trust, of which Mr. Hayden is the trustee.
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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.24 to $4.64, inclusive. The reporting person undertakes to provide to CuriosityStream Inc., any security holder of CuriosityStream Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

Remarks:

	/s/ P. Brady Hayden	09/02/2025
	** 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

Who filed this Form 4 for CURI and what is their role?

The Form 4 was filed by P. Brady Hayden, who is identified as the Chief Financial Officer of CuriosityStream Inc.

How many CURI shares did the reporting person sell and on what dates?

The filing reports sales of 35,578 shares on 08/29/2025 and 16,149 shares on 09/02/2025.

At what prices were the CURI shares sold?

The filing reports a weighted average price of $4.414 for the 08/29 sale and $4.56 for the 09/02 sale; individual trades ranged from $4.24 to $4.64.

What beneficial ownership does the reporting person hold after these transactions?

After the reported transactions the filing shows 38,325 shares beneficially owned indirectly via the revocable trust, plus 25,000 shares held by Plan Z, LLC.

Were the sales part of a pre-established trading plan?

Yes. The filing states the shares were sold pursuant to a 10b5-1 plan entered into on May 30, 2025.