Roblox (RBLX)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-20 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Roblox Corp (RBLX) CIK: 0001315098 --- Reporting Owner --- Name: Reinstra Mark CIK: 0001835037 Role: Officer (Chief Legal Off. & Corp. Sec.) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-08-20 | Code: S (Open market sale) Shares: -13,020 | Price: $37.78 Total Value: $491,839.61 Shares Owned After: 402,978 | Ownership: D (Direct) Footnotes: [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. [F2] The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.26 to $38.22, 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. [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. [Transaction #2] Security: Class A Common Stock Date: 2026-08-20 | Code: S (Open market sale) Shares: -4,914 | Price: $38.45 Total Value: $188,947.23 Shares Owned After: 398,064 | Ownership: D (Direct) Footnotes: [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. [F4] The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.275 to $38.98, 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. [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. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F5] 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. [Holding #2] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F6] 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. [Holding #3] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F7] 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. [Holding #4] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F8] 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. [Holding #5] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F9] 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. --- Footnotes (Complete Index) --- 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. F2: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.26 to $38.22, 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. 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. F4: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.275 to $38.98, 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. F5: 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. F6: 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. F7: 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. F8: 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. F9: 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. --- Signature --- /s/ /s/ Mark Reinstra (2026-08-24)