Roblox Insider Sale: Kaufman Disposes Shares Under 10b5-1 Plan

Rhea-AI Filing Summary

Roblox Corporation (RBLX) insider Matthew D. Kaufman, Chief Safety Officer, reported multiple sales of Class A common stock on August 20-21, 2025. The Form 4 shows five sell transactions: 1,230 shares at an average of $116.0538, 3,945 shares at $117.0161, 5,621 shares at $117.9661, 3,412 shares at $118.6738 (all on 08/20/2025), and 6,000 shares at $116.84 (on 08/21/2025). The filings state these sales were to satisfy statutory tax-withholding obligations related to vested restricted stock units (RSUs), with one sale effected under a Rule 10b5-1 plan adopted November 1, 2024. Following the transactions the reporting person beneficially owned 281,015 shares.

Insights

Financial Analyst

TL;DR: Routine sell-to-cover transactions reduced insider holdings but reflect standard tax withholding, not a cash liquidity event.

The transaction sizes are modest relative to institutional holdings and are explicitly described as sales to satisfy tax withholding on vested RSUs. Prices ranged approximately $115.39 to $118.96 across multiple executions, and one tranche was executed under a pre-established Rule 10b5-1 plan, which typically mitigates concerns about opportunistic trading. From an investor-impact perspective, these disclosures are routine and provide transparency on insider share counts; they do not indicate a change in company operations or performance.

Corporate Governance Expert

TL;DR: The filing discloses standard compliance with reporting rules and use of a 10b5-1 plan for one sale.

The Form 4 is properly completed, identifies the reporting person and relationship to the issuer, and includes explanations that the disposals were to cover tax withholding for RSU vesting. The attorney-in-fact signature and the stated 10b5-1 plan adoption date enhance procedural clarity. For governance assessment, these actions are routine compensation-related dispositions and appear consistent with established insider trading controls; no governance red flags are evident in the filing itself.

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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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)
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
Class A Common Stock	08/20/2025		S(1)		1,230	D	$116.0538(2)	299,993(3)	D
Class A Common Stock	08/20/2025		S(1)		3,945	D	$117.0161(4)	296,048(3)	D
Class A Common Stock	08/20/2025		S(1)		5,621	D	$117.9661(5)	290,427(3)	D
Class A Common Stock	08/20/2025		S(1)		3,412	D	$118.6738(6)	287,015(3)	D
Class A Common Stock	08/21/2025		S(7)		6,000	D	$116.84	281,015(3)	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. Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs"). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction.

2. The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $115.39 to $116.37, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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 range set forth in this footnote.

3. A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

4. The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $116.39 to $117.37, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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 range set forth in this footnote.

5. The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $117.46 to $118.45, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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 range set forth in this footnote.

6. The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $118.47 to $118.96, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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 range set forth in this footnote.

7. This sale was effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 01, 2024.

Remarks:

	/s/ Mark Reinstra Attorney-in-Fact for Matthew D. Kaufman	08/22/2025
	** 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.
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FAQ

What transactions did Matthew D. Kaufman report on Form 4 for RBLX?

The Form 4 reports five sales of Class A common stock on 08/20/2025 and 08/21/2025 totaling 20,208 shares sold to cover tax-withholding on vested RSUs.

Why were the RBLX shares sold by the reporting person?

The filing states the sales were to satisfy statutory tax-withholding obligations in connection with the vesting of Restricted Stock Units (RSUs).

Were any sales executed under a pre-established trading plan?

Yes. The sale of 6,000 shares on 08/21/2025 was effected pursuant to a Rule 10b5-1 plan adopted November 01, 2024.

What were the reported average prices for the sales?

Reported average prices were $116.0538, $117.0161, $117.9661, $118.6738 for 08/20 sales and $116.84 for the 08/21 sale, with execution ranges disclosed in footnotes.

How many RBLX shares did Kaufman beneficially own after these transactions?

Following the reported transactions, the filing shows the reporting person beneficially owned 281,015 shares of Class A common stock.