Mark Reinstra - 30 Sep 2025 Form 4 Insider Report for Roblox Corp (RBLX)

Role: Chief Legal Off. & Corp. Sec.
Signature: /s/ Mark Reinstra
Issuer symbol: RBLX
Transactions as of: 30 Sep 2025
Transactions value $: $0
Form type: 4
Filing time: 30 Sep 2025, 16:01:20 UTC
Previous filing: 22 Aug 2025
Next filing: 07 Nov 2025
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	30 Sep 2025	0001835037

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RBLX	Class A Common Stock	Award	$0	+16K	+4.29%	$0.00	390K	30 Sep 2025	Direct	F1, F2
holding	RBLX	Class A Common Stock						117K	30 Sep 2025	See footnote	F3
holding	RBLX	Class A Common Stock						35.4K	30 Sep 2025	See footnote	F4
holding	RBLX	Class A Common Stock						16.7K	30 Sep 2025	See Footnote	F5
holding	RBLX	Class A Common Stock						35.4K	30 Sep 2025	See footnote	F6
holding	RBLX	Class A Common Stock						16.7K	30 Sep 2025	See Footnotes	F7

* 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 November 20, 2025 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	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.
F4	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.
F5	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.
F6	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.
F7	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.