Gina Mastantuono - 28 May 2025 Form 4 Insider Report for Roblox Corp (RBLX)

Role: Director
Signature: /s/Mark Reinstra Attorney-in-Fact for Gina Mastantuonto
Issuer symbol: RBLX
Transactions as of: 28 May 2025
Net transactions value: $0
Form type: 4
Filing time: 30 May 2025, 16:24:41 UTC
Previous filing: 20 May 2025
Next filing: 28 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mastantuono Gina	Director	C/O ROBLOX CORPORATION, 3150 S. DELAWARE ST., SAN MATEO	/s/Mark Reinstra Attorney-in-Fact for Gina Mastantuonto	30 May 2025	0001465391

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RBLX	Class A Common Stock	Other	$0	-1,835	-11%	$0.000000	14,372	28 May 2025	Direct	F1, F2
transaction	RBLX	Class A Common Stock	Award	$0	+4,501	+31%	$0.000000	18,873	29 May 2025	Direct	F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RBLX	Phantom Stock	Other		+1,835	+15%		13,716	28 May 2025	Class A Common Stock	1,835		Direct	F1, F4, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	In connection with the vesting on May 28, 2025, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,835 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,835 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,835 shares of Class A common stock in exchange for an equal number of shares of phantom stock.
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.
F3	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. 1/4th of the RSUs shall vest on each of August 20, 2025, November 20, 2025 and February 20, 2026, and the remaining 1/4th of the RSUs shall vest on the earlier of (i) the day before the annual meeting of stockholders held in 2026 or (ii) May 29, 2026, subject to the Reporting Person continuing as a service provider through each vest date.
F4	Each share of phantom stock represents a right to receive one share of Class A common stock.
F5	The phantom stock becomes payable in two lump sum payments with 50% to become payable on March 1, 2028, subject to the Reporting Person continuing as a service provider through March 1, 2028, and 50% to become payable on a separation from service.