Mark Reinstra - 01 Mar 2026 Form 4 Insider Report for Roblox Corp (RBLX)

Role: Chief Legal Off. & Corp. Sec.
Signature: /s/ Mark Reinstra
Issuer symbol: RBLX
Transactions as of: 01 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 03 Mar 2026, 16:30:09 UTC
Previous filing: 24 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Reinstra Mark	Chief Legal Off. & Corp. Sec.	C/O ROBLOX CORPORATION, 3150 S. DELAWARE ST., SAN MATEO	/s/ Mark Reinstra	03 Mar 2026	0001835037

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RBLX	Class A Common Stock	Award	$0	+96,790	+26%	$0.000000	474,126	01 Mar 2026	Direct	F1, F2, F3
holding	RBLX	Class A Common Stock						120,272	01 Mar 2026	See footnote	F4
holding	RBLX	Class A Common Stock						33,538	01 Mar 2026	See footnote	F5
holding	RBLX	Class A Common Stock						16,653	01 Mar 2026	See Footnote	F6
holding	RBLX	Class A Common Stock						33,538	01 Mar 2026	See footnote	F7
holding	RBLX	Class A Common Stock						16,653	01 Mar 2026	See Footnotes	F8

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	Performance Stock Unit	Award	$0	+104,236		$0.000000	104,236	01 Mar 2026	Class A Common Stock	104,236		Direct	F9, F10, F11

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

Explanation of Responses:

Id	Content
F1	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. 1/12th of the RSUs shall vest on May 20, 2026 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the Reporting Person continuing as a service provider through each such date.
F2	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.
F3	Includes 200 shares acquired by the Reporting Person on February 25, 2026 pursuant to the Issuer's 2020 Employee Stock Purchase Plan.
F4	These shares are held directly by the San Domenico Trust dated August 12, 1999 for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership over the securities held by the trust.
F5	These shares are held directly by the Mark L. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust.
F6	These shares are held directly by the Mark L. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust.
F7	These shares are held directly by the Susan P. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust.
F8	These shares are held directly by the Susan P. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust.
F9	Each performance stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.
F10	Represents that maximum number of shares of Class A Common Stock which may be issued under this award.
F11	The vesting of the performance stock units ("PSUs") is subject to satisfying performance-based requirements, including the achievement of certain Bookings and Covenant Adjusted EBITDA margin targets by the Issuer for two successive one-year periods beginning January 1, 2026 and a relative total shareholder return target by the Issuer during a two-year performance period from January 1, 2026 and December 31, 2027. Subject to continued service by the Reporting Person on the vesting date, 100% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee after the end of the two-year performance period on December 31, 2027.