[Form 4] CuriosityStream Inc. Insider Trading Activity

Rhea-AI Filing Summary

Rebecca R. Reed, General Counsel and director of CuriosityStream Inc. (ticker shown as CURI), reported that 43 restricted stock units (RSUs) granted July 19, 2021 vested on September 19, 2025 and were converted one-for-one into 43 shares of common stock. The filing also shows the company withheld 15 shares$5.27, leaving 31,333 sharesSeptember 23, 2025. The record shows routine insider vesting and corresponding tax withholding; no other transactions or derivative positions were reported.

Insights

Securities Analyst

TL;DR: Small, routine RSU vesting with tax withholding; no material change to ownership.

The Form 4 documents a typical vesting event: 43 RSUs converted into 43 shares on 09/19/2025, with 15 shares withheld for taxes at $5.27 per share, resulting in 31,333 shares beneficially owned post-transaction. For investors this is a non-material insider transaction given the small share count and absence of purchases, sales, or derivative activity. The filing is complete and signed by an attorney-in-fact on 09/23/2025.

Corporate Governance Expert

TL;DR: Routine equity compensation administration; disclosure aligns with Section 16 reporting requirements.

The disclosure clearly states the vesting and tax-withholding mechanics for RSUs granted in 2021. Reporting the withholding quantity and price ($5.27) satisfies transparency norms for insider compensation events. No amendments or additional restrictions are indicated, and the filing is made by one reporting person as required.

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

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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)
09/19/2025

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	09/19/2025		M		43	A	(1)	31,348	D
Common Stock	09/19/2025		F		15(2)	D	$5.27	31,333	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	(1)	09/19/2025		M			43	(1)	(1)	Common Stock	43	(1)	43	D

Explanation of Responses:

1. On September 19, 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.

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.

Remarks:

	/s/ P. Brady Hayden as attorney-in-fact for Rebecca Reed	09/23/2025
	** 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 did Rebecca R. Reed report on the Form 4 for CURIW?

The Form 4 reports that 43 RSUs vested on 09/19/2025 and converted into 43 shares of common stock, with 15 shares withheld for taxes at $5.27 per share.

How many shares did Ms. Reed beneficially own after the reported transaction?

The filing shows 31,333 shares beneficially owned following the transaction.

Was this Form 4 filed individually or jointly?

The Form 4 was filed by one reporting person (individual filing).

When were the RSUs originally granted that vested on 09/19/2025?

The RSUs were granted on July 19, 2021, per the filing explanation.

Who signed the Form 4 and when?

The Form 4 was signed by P. Brady Hayden as attorney-in-fact for Rebecca Reed on 09/23/2025.