[Form 4] CuriosityStream Inc. Insider Trading Activity

Rhea-AI Filing Summary

Rebecca R. Reed, who is listed as the company's General Counsel and an officer, reported changes in her beneficial ownership of CuriosityStream Inc. (CURI) on transactions dated 08/20/2025. The Form 4 shows a sale of 273 shares executed under a 10b5-1 plan at $4.07 per share, withholding of 15 shares for tax purposes at $4.26 related to RSU vesting, and the conversion of 43 restricted stock units that vested into 43 shares. The reported beneficial ownership amounts after these entries are 31,277, 31,262 and 31,305 respectively. The filing is signed by an attorney-in-fact on 08/21/2025. All actions are disclosed as required on Form 4.

Positive

• Timely disclosure of insider transactions via Form 4, filed and signed on 08/21/2025
• Use of a 10b5-1 plan for the sale, indicating pre-arranged execution and compliance with insider trading rules
• RSU vesting and conversion documented, showing standard compensation mechanics and tax withholding

Negative

• Insider sale of 273 shares was executed (though disclosed as under a 10b5-1 plan)
• Share withholding (15 shares) reduced reported beneficial ownership due to tax-related disposition

Insights

Securities Analyst

TL;DR: Routine insider transactions with a pre-arranged sale and RSU vesting; no new material corporate developments reported.

The Form 4 documents three routine events for an officer: a sale executed under a 10b5-1 plan, share withholding for taxes upon RSU vesting, and the conversion of vested RSUs into common stock. The sale quantity (273 shares) and the RSU conversion (43 shares) are small relative to typical market-cap disclosures and the filing does not report any additional compensation changes, option grants, or extraordinary transactions. From a trading-impact perspective, these are compliance and compensation-related items rather than signals of corporate action.

Corporate Governance Expert

TL;DR: Filing shows compliant insider activity: executed 10b5-1 sale, tax withholding on RSU vesting, and timely disclosure.

The filing indicates adherence to insider-trading defenses and routine equity compensation mechanics. The 10b5-1 sale was entered into on May 21, 2025 as disclosed in the footnote, and the transaction and RSU vesting were reported promptly on Form 4. There are no indications of atypical transfers, related-party transactions, or amendments that would raise governance concerns based on the information provided.

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).

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^*

Reed Rebecca R

(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)
	Gen Counsel

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2025

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	08/20/2025		S		273(1)	D	$4.07	31,277	D
Common Stock	08/20/2025		F		15(2)	D	$4.26	31,262	D
Common Stock	08/20/2025		M		43	A	(3)	31,305	D

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
Restricted Stock Units	(3)	08/20/2025		M			43	(3)	(3)	Common Stock	43	(3)	43	D

Explanation of Responses:

1. Shares sold pursuant to a 10b5-1 plan which Ms. Reed entered into on May 21, 2025.

2. Represents the withholding of shares of the Company's common stock for tax purposes in connection with the vesting of restricted stock units previously granted.

3. On August 20, 2025, 43 restricted stock units granted to Ms. Reed on July 19, 2021, vested and were converted into shares of the Company's common stock on a one-to-one basis.

Remarks:

	/s/ P. Brady Hayden as attorney-in-fact for Rebecca Reed	08/21/2025
	** 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.
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FAQ

What transactions did Rebecca R. Reed report on CuriosityStream Inc. (CURI)?

On 08/20/2025 Ms. Reed reported a sale of 273 shares under a 10b5-1 plan at $4.07, withholding of 15 shares for taxes at $4.26, and conversion of 43 vested RSUs into 43 shares.

Was the sale by Rebecca R. Reed pre-arranged under a trading plan?

Yes. The Form 4 states the shares sold were pursuant to a 10b5-1 plan entered into on May 21, 2025.

How many shares did Rebecca R. Reed beneficially own after the reported transactions?

The Form 4 shows beneficial ownership amounts of 31,277, 31,262, and 31,305 reported alongside each transaction line.

Why were 15 shares withheld according to the Form 4?

The filing explains that 15 shares were withheld for tax purposes in connection with the vesting of previously granted restricted stock units.

Who signed the Form 4 for Rebecca Reed?

The Form 4 was signed by P. Brady Hayden as attorney-in-fact for Rebecca Reed on 08/21/2025.