Roblox (NYSE: RBLX) safety chief sells 14,904 shares for RSU taxes

Rhea-AI Filing Summary

Roblox Corp (RBLX) reported that Chief Safety Officer Matthew D. Kaufman entered two transactions in Class A Common Stock on August 20, 2026. He sold 10,994 shares at a weighted average price of $37.7808 and 3,910 shares at a weighted average price of $38.4653. According to the company’s equity plan, these were mandatory sell-to-cover sales to satisfy statutory tax withholding owed on the vesting of Restricted Stock Units, and are described as non-discretionary by the reporting person.

Insider Trade Summary

Net Seller: 14,904 shares

Net Sell 2 txns

Insider Kaufman Matthew D

Role Chief Safety Officer

Sold 14,904 shs ($566K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	10,994	$37.7808	$415K
Sale	Class A Common Stock F1, F4, F3	3,910	$38.4653	$150K

Holdings After Transaction: Class A Common Stock — 335,060 shares (Direct)

Footnotes (4)

1. F1. Represents the number of shares sold to cover statutory tax withholding obligations arising in connection with the vesting of certain Restricted Stock Units ("RSUs"). These shares were sold pursuant to a mandatory "sell-to-cover" arrangement under the Issuer's equity incentive plan to satisfy tax withholding obligations and do not represent a discretionary transaction by the Reporting Person.
2. F2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.22 to $38.19, 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. F3. 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.
4. F4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.28 to $38.98, 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.

Key Figures

Shares sold (first transaction): 10,994 shares Weighted average price (first transaction): $37.7808 per share Shares sold (second transaction): 3,910 shares +2 more

5 metrics

Shares sold (first transaction) 10,994 shares Class A Common Stock sold on August 20, 2026

Weighted average price (first transaction) $37.7808 per share Sales in multiple trades between $37.22 and $38.19

Shares sold (second transaction) 3,910 shares Class A Common Stock sold on August 20, 2026

Weighted average price (second transaction) $38.4653 per share Sales in multiple trades between $38.28 and $38.98

Total shares sold 14,904 shares Aggregate of both reported sales on August 20, 2026

Key Terms

Restricted Stock Units ("RSUs"), sell-to-cover, weighted average price, statutory tax withholding obligations

4 terms

Restricted Stock Units ("RSUs") financial

"A portion of these securities are Restricted Stock Units ("RSUs")."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

sell-to-cover financial

"These shares were sold pursuant to a mandatory "sell-to-cover" arrangement"

Sell-to-cover is when part of newly issued or exercised company stock is immediately sold to pay required taxes and fees, so the recipient keeps the remaining shares. For investors this matters because it reduces the number of shares insiders or employees actually hold after a grant, can create small, routine share sales that aren’t signal of cashing out, and slightly increases share supply on the market—like selling a portion of a paycheck to cover the tax bill.

weighted average price financial

"The price reported in column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

statutory tax withholding obligations financial

"shares sold to cover statutory tax withholding obligations arising in connection"

FAQ

What insider activity did Roblox Corp (RBLX) disclose for Matthew D. Kaufman?

Roblox disclosed that Chief Safety Officer Matthew D. Kaufman sold a total of 14,904 shares of Class A Common Stock on August 20, 2026 in two transactions, both reported as sales in the open market or private transactions.

Were Matthew D. Kaufman’s RBLX share sales discretionary trades?

No. The filing states the shares were sold to cover statutory tax withholding from the vesting of RSUs under a mandatory sell-to-cover arrangement, and that they do not represent a discretionary transaction by Matthew D. Kaufman.

How many Roblox (RBLX) shares did Matthew D. Kaufman sell and at what prices?

Matthew D. Kaufman sold 10,994 shares at a weighted average price of $37.7808 and 3,910 shares at a weighted average price of $38.4653, all on August 20, 2026.

What price ranges applied to Matthew D. Kaufman’s RBLX share sales?

For the 10,994-share sale, the weighted average covers trades between $37.22 and $38.19. For the 3,910-share sale, the weighted average covers trades between $38.28 and $38.98, according to the filing’s footnotes.

What role do RSUs play in Matthew D. Kaufman’s Roblox (RBLX) transactions?

The filing notes that a portion of the securities involved are Restricted Stock Units (RSUs), where each RSU represents a contingent right to receive one share of Roblox’s Class A Common Stock. The reported sales relate to tax withholding on RSU vesting.

Were Matthew D. Kaufman’s RBLX sales made under a Rule 10b5-1 plan?

The Rule 10b5-1 checkbox is not marked as affirming a plan, and the footnotes instead describe the transactions as mandatory sell-to-cover sales for tax withholding under Roblox’s equity incentive plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/24/2026 - 04:41 PM Accepted by SEC EDGAR 08/24/2026 - 04:40 PM Learn about SEC filing dates

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^*

Kaufman Matthew D

(Last) (First) (Middle)

C/O ROBLOX CORPORATION

3150 S. DELAWARE ST.

(Street)

SAN MATEO CALIFORNIA 94403

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	08/20/2026		S(1)		10,994	D	$37.7808(2)	338,970(3)	D
Class A Common Stock	08/20/2026		S(1)		3,910	D	$38.4653(4)	335,060(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 statutory tax withholding obligations arising in connection with the vesting of certain Restricted Stock Units ("RSUs"). These shares were sold pursuant to a mandatory "sell-to-cover" arrangement under the Issuer's equity incentive plan to satisfy tax withholding obligations and do not represent a discretionary transaction by the Reporting Person.

2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.22 to $38.19, 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 Restricted Stock Units ("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 a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.28 to $38.98, 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.

Remarks:

	/s/ Mark Reinstra Attorney-in-Fact for Matthew D. Kaufman	08/24/2026
	** 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.
* Form 4: SEC 1474 (03-26)