RBLX Form 4: Kaufman sold 6,000 Class A shares under 10b5-1 plan

Rhea-AI Filing Summary

Matthew D. Kaufman, Chief Safety Officer of Roblox Corporation, reported a sale of 6,000 shares of Class A Common Stock on 08/07/2025 at a reported price of $133.67 per share. The Form 4 states the transactions were effected pursuant to a Rule 10b5-1 plan adopted on 11/01/2024. After the reported sale, the reporting person beneficially owns 301,223 shares; the filing notes that a portion of these holdings are Restricted Stock Units (RSUs) that represent contingent rights to receive Class A shares. The form was signed by attorney-in-fact Mark Reinstra on 08/11/2025.

Positive

• Transaction executed under a pre-existing Rule 10b5-1 plan

Negative

• None.

Insights

Financial Analyst

Officer sold 6,000 RBLX shares under a pre-existing 10b5-1 plan; holdings remain significant.

The Form 4 reports a disposal of 6,000 Class A shares on 08/07/2025 at $133.67 per share under a Rule 10b5-1 plan adopted 11/01/2024. The filing shows beneficial ownership of 301,223 shares following the sale and discloses that some holdings are RSUs. This appears to be a scheduled, pre-arranged sale rather than an ad hoc disposition; the transaction is therefore likely routine and immaterial to underlying operating results.

Corporate Governance Expert

Sale executed under a documented 10b5-1 plan and disclosed via Form 4; filing was signed by attorney-in-fact.

The report documents compliance with insider trading disclosure rules: the sale was made pursuant to a Rule 10b5-1 plan and the Form 4 was executed by an attorney-in-fact on 08/11/2025. The filing also clarifies that part of the reporting person’s position consists of RSUs. From a governance standpoint, the disclosure is complete on its face and follows standard procedures for scheduled insider sales.

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
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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).

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^*

Kaufman Matthew D

(Last) (First) (Middle)

C/O ROBLOX CORPORATION

3150 S. DELAWARE ST.

(Street)

SAN MATEO CA 94403

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Roblox Corp [ RBLX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Safety Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2025

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
Class A Common Stock	08/07/2025		S(1)		6,000	D	$133.67	301,223(2)	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

Explanation of Responses:

1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 01, 2024.

2. A portion of these securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Remarks:

	/s/ Mark Reinstra Attorney-in-Fact for Matthew D. Kaufman	08/11/2025
	** 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 transaction did Matthew D. Kaufman report on the Form 4 for RBLX?

The Form 4 reports a sale of 6,000 Class A Common Stock shares on 08/07/2025 at a price of $133.67 per share.

Was the sale by Matthew D. Kaufman part of a trading plan?

Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 plan adopted on 11/01/2024.

How many RBLX shares does Kaufman beneficially own after the reported transaction?

Following the reported sale, the Form 4 shows beneficial ownership of 301,223 shares.

Does the filing mention restricted stock units (RSUs)?

Yes. The Form 4 states that a portion of the reported securities are RSUs, each representing a contingent right to receive one share of Class A Common Stock.

Who signed the Form 4 and when was it signed?

The Form 4 was signed by attorney-in-fact Mark Reinstra on 08/11/2025.