Roblox (NYSE: RBLX) exec sale covers RSU tax bill after vesting

Rhea-AI Filing Summary

Roblox Corp (RBLX) reported that Chief People & Systems Officer Sean Jack Buckley sold a total of 5,607 shares of Class A Common Stock on 2026-08-20 in two open-market transactions. According to the company’s disclosure, these sales were made solely to cover statutory tax withholding obligations arising from the vesting of Restricted Stock Units and were executed under a mandatory sell-to-cover arrangement, described as not a discretionary transaction by the officer. The reported per-share prices are weighted averages for trades executed within specified intraday price ranges.

Insider Trade Summary

Net Seller: 5,607 shares

Net Sell 2 txns

Insider BUCKLEY SEAN JACK

Role Chief People & Systems Officer

Sold 5,607 shs ($213K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	4,280	$37.8148	$162K
Sale	Class A Common Stock F1, F4, F3	1,327	$38.4725	$51K

Holdings After Transaction: Class A Common Stock — 91,534 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 $37.36 to $38.35, 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 $38.38 to $38.90, 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): 4,280 shares Weighted average price (first transaction): $37.8148 per share Shares sold (second transaction): 1,327 shares +2 more

5 metrics

Shares sold (first transaction) 4,280 shares Class A Common Stock sold on 2026-08-20 to cover tax withholding

Weighted average price (first transaction) $37.8148 per share Weighted average within a $37.36–$38.35 range for 4,280-share sale

Shares sold (second transaction) 1,327 shares Class A Common Stock sold on 2026-08-20 to cover tax withholding

Weighted average price (second transaction) $38.4725 per share Weighted average within a $38.38–$38.90 range for 1,327-share sale

Total shares sold 5,607 shares Aggregate net shares sold on 2026-08-20 per transaction summary

Key Terms

Restricted Stock Units, sell-to-cover, weighted average price, statutory tax withholding obligations

4 terms

Restricted Stock Units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

sell-to-cover financial

"sold pursuant to a mandatory "sell-to-cover" arrangement under the Issuer's equity"

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

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

FAQ

What insider transaction did RBLX report for Sean Jack Buckley on August 20, 2026?

Roblox Corp reported that Sean Jack Buckley sold a total of 5,607 shares of Class A Common Stock on 2026-08-20 in two transactions. The company states these sales covered statutory tax withholding from RSU vesting under a mandatory sell-to-cover arrangement.

Were the August 20, 2026 RBLX stock sales by Sean Jack Buckley discretionary?

No. The disclosure states the shares were sold to cover statutory tax withholding obligations from vested RSUs under a mandatory sell-to-cover arrangement and do not represent a discretionary transaction by Sean Jack Buckley.

How many RBLX shares did Sean Jack Buckley sell in each transaction?

On 2026-08-20, Sean Jack Buckley sold 4,280 shares at a weighted average price of $37.8148 and 1,327 shares at a weighted average price of $38.4725, for a total of 5,607 shares of Roblox Class A Common Stock.

What price ranges applied to Sean Jack Buckley’s RBLX share sales on August 20, 2026?

For the 4,280-share sale, trades occurred at prices from $37.36 to $38.35. For the 1,327-share sale, trades occurred from $38.38 to $38.90. Reported prices are weighted average prices within these ranges.

Did the Form 4 indicate remaining RSUs or equity for Sean Jack Buckley at RBLX?

Yes. The filing notes that a portion of the reported securities are Restricted Stock Units (RSUs), each representing a contingent right to receive one share of Roblox Class A Common Stock, indicating ongoing RSU-based equity exposure.

Was Sean Jack Buckley’s August 20, 2026 RBLX sale under a Rule 10b5-1 plan?

The document-level Rule 10b5-1 checkbox is not checked. Instead, the filing specifies that the sales were under a mandatory sell-to-cover arrangement to satisfy tax withholding on RSU vesting, rather than a discretionary trading plan.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/24/2026 - 04:40 PM Accepted by SEC EDGAR 08/24/2026 - 04:39 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^*

BUCKLEY SEAN JACK

(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 People & Systems 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)		4,280	D	$37.8148(2)	92,861(3)	D
Class A Common Stock	08/20/2026		S(1)		1,327	D	$38.4725(4)	91,534(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 $37.36 to $38.35, 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 $38.38 to $38.90, 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 Sean Jack Buckley	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)