RBLX Form 4: Chief Safety Officer Disposes of 6,000 Shares via 10b5-1

Rhea-AI Filing Summary

Matthew D. Kaufman, Chief Safety Officer at Roblox Corporation (RBLX), reported a sale of 6,000 shares of Class A common stock on 09/18/2025 at a price of $136.55 per share under a pre-existing Rule 10b5-1 trading plan adopted on 11/01/2024. After the transaction Kaufman beneficially owned 278,642 shares, some of which are Restricted Stock Units (RSUs) that represent contingent rights to receive one share each. The Form 4 was filed as a single reporting person disclosure and signed by an attorney-in-fact on 09/22/2025.

Positive

• Trade executed under a Rule 10b5-1 plan adopted on 11/01/2024, indicating pre-arranged, compliant insider trading procedures
• Reporting shows continued substantial ownership with 278,642 shares beneficially owned after the sale

Negative

• Officer sold 6,000 Class A shares, which is a reduction in holdings and may be noted by investors
• Some holdings are RSUs, meaning portions of the reported ownership are contingent and not immediately liquid shares

Insights

Corporate Governance Expert

TL;DR: Officer sale executed under a 10b5-1 plan, indicating compliance and pre-arranged timing rather than opportunistic trading.

The filing shows a routine insider disposition of 6,000 Class A shares at $136.55 under a Rule 10b5-1 plan adopted 11/01/2024. Use of a documented plan reduces concerns about selective disclosure or opportunistic timing because trades are pre-authorized. Holdings remain substantial at 278,642 shares, including RSUs, which suggests continued alignment with shareholder interests. No derivatives or additional complex instruments were reported, and the Form 4 was properly executed by an attorney-in-fact.

Securities Analyst

TL;DR: Small officer sale relative to total holdings; unlikely to be materially market-moving.

The disposition of 6,000 shares at $136.55 represents a specific, limited liquidity event rather than a significant reduction in ownership given reported holdings of 278,642 shares. The explanation clarifies the trade was pursuant to a 10b5-1 plan, lowering the likelihood the sale reflects private corporate developments. No new information on company performance or material events is provided by this Form 4.

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^*

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)
09/18/2025

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	09/18/2025		S(1)		6,000	D	$136.55	278,642(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	09/22/2025
	** 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 Matthew D. Kaufman (RBLX) report on Form 4?

He reported a sale of 6,000 Class A shares on 09/18/2025 at $136.55 per share under a Rule 10b5-1 plan.

Was the sale by Kaufman pre-planned?

Yes. The Form 4 states the transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on 11/01/2024.

How many Roblox shares does Kaufman own after the reported transaction?

He beneficially owned 278,642 shares following the reported sale, including a portion held as RSUs.

Does the Form 4 report any derivative transactions for Kaufman?

No. Table II for derivative securities contains no reported transactions.

When was the Form 4 signed and filed?

The filing was signed by an attorney-in-fact on 09/22/2025 as indicated on the form.