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  4. [Form 4] Roblox Corp Insider Trading Activity

Roblox (NYSE: RBLX) HR chief sells 4,321 shares under 10b5-1 plan

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Roblox Corp (RBLX) reported that officer Sean Jack Buckley, Chief People & Systems Officer, sold 4,321 shares of Class A Common Stock on August 24, 2026 at $38.68 per share. After this sale, he directly holds 87,213 shares, a portion of which are Restricted Stock Units. The sale was effected under a Rule 10b5-1 Plan adopted on November 3, 2025.

Positive

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Negative

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Insider BUCKLEY SEAN JACK
Role Chief People & Systems Officer
Sold 4,321 shs ($167K)
Type Security Shares Price Value
Sale Class A Common Stock F1, F2 4,321 $38.68 $167K
Holdings After Transaction: Class A Common Stock — 87,213 shares (Direct)
Footnotes (2)
  1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 3, 2025.
  2. F2. 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.
Shares sold 4,321 shares Class A Common Stock sold on August 24, 2026
Sale price per share $38.68 per share Price for the 4,321 shares sold on August 24, 2026
Shares owned after transaction 87,213 shares Direct holdings of Class A Common Stock following the sale
Net shares sold 4,321 shares Net sell activity in this Form 4, per transaction summary
Rule 10b5-1 Plan regulatory
"sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
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.
Class A Common Stock financial
"Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock."
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

What insider transaction did RBLX disclose for Sean Jack Buckley?
Roblox Corp disclosed that Sean Jack Buckley sold 4,321 shares of Class A Common Stock on August 24, 2026 at $38.68 per share, leaving him with 87,213 shares held directly, some of which are in the form of Restricted Stock Units.

Was the RBLX insider sale by Sean Jack Buckley under a Rule 10b5-1 plan?
Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 Plan adopted by Sean Jack Buckley on November 3, 2025, indicating the trades were made under a pre-arranged trading plan.

How many RBLX shares did Sean Jack Buckley sell and at what price?
He sold 4,321 shares of Roblox Corp Class A Common Stock at a price of $38.68 per share on August 24, 2026, according to the Form 4 insider transaction report.

How many RBLX shares does Sean Jack Buckley own after this transaction?
After the reported sale, Sean Jack Buckley directly owns 87,213 shares of Roblox Corp Class A Common Stock. A portion of these holdings consists of Restricted Stock Units (RSUs), each representing a contingent right to receive one share.

What does the RSU disclosure mean in the RBLX Form 4 filing?
The Form 4 notes that a portion of Buckley’s holdings are Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of Roblox Corp’s Class A Common Stock, typically subject to vesting conditions.

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

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief People & Systems Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/24/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Class A Common Stock08/24/2026S(1)4,321D$38.6887,213(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 3, 2025.
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 Sean Jack Buckley08/25/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR