X0306 4 2023-02-24 0 0001315098 Roblox Corp RBLX 0001833040 Altos Ventures IV, L.P. C/O ROBLOX CORPORATION 970 PARK PLACE SAN MATEO CA 94403 0 0 1 0 0001836648 Nam Hodong C/O ROBLOX CORPORATION 970 PARK PLACE SAN MATEO CA 94403 0 0 1 0 0001836652 Kim Han C/O ROBLOX CORPORATION 970 PARK PLACE SAN MATEO CA 94403 0 0 1 0 0001881755 Altos Ventures Management Inc. C/O ROBLOX CORPORATION 970 PARK PLACE SAN MATEO CA 94403 0 0 1 0 Class A Common Stock 2023-02-24 4 J 0 51024 0.00 A 75531 I See Footnotes Class A Common Stock 2023-02-24 4 J 0 510397 0.00 A 2104861 I See Footnotes Class A Common Stock 2023-02-24 4 J 0 72378 0.00 A 228862 I See Footnotes Class A Common Stock 72 I See Footnotes Class A Common Stock 100000 I See Footnotes Class A Common Stock 2023-02-24 4 J 0 510396 0.00 A 2132858 I See Footnotes Class A Common Stock 2023-02-24 4 J 0 72379 0.00 A 228863 I See Footnotes Represents shares received in a pro-rata in-kind distribution of shares of the Issuer's Class A Common Stock from Altos Roblox 2020 Management Partners, LLC. These shares are held directly by Altos Ventures Management Inc. The members of the Board of Directors of Altos Ventures Management, Inc. (AVMI) are Anthony P. Lee, Hodong Nam and Han Kim, who exercise voting and investment control over the shares. Each member of the Board of Directors of AVMI disclaim beneficial ownership of the shares except to the extent of their pecuniary interest therein. Represents shares received in a pro-rata in-kind distribution of shares of the Issuer's Class A Common Stock from Altos Management Partners IV, LLC, Altos Management IV LR GP, LLC, Altos Roblox SPV 2, LLC, Altos Roblox Management Partners, LLC and Altos Hybrid 2 GP, LLC. These shares are held by the Nam-MacGill 2006 Family Trust for which Hodong Nam serves as trustee. Mr. Nam disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. These shares are directly by Nam-MacGill Investments, LLC - Sub Fund No. 1 for which Mr. Nam serves as Managing Member. Mr. Nam disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. These shares are held directly by trusts for the minor children of Mr. Nam, for which Mr. Nam serves as co-trustee. These shares are held by the Shipshead Trust for which Mr. Nam serves as trustee. Mr. Nam disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. These shares are held directly by The Kim Living Trust for which Mr. Kim serves as trustee. Mr. Kim disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein. These shares are held directly by Han Family Investments, LLC - Sub Fund No. 1 which Mr. Kim serves as Managing Member. Mr. Kim disclaims beneficial ownership of the shares except to the extent of pecuniary interest therein. This Form 4 is the second of two Forms 4 filed by the Reporting Persons related to the same events. The Form 4 has been split into two filings in order to include all Reporting Persons. /s/ Anthony P. Lee, Managing Director of Altos Management Partners IV,LLC, general partner of Altos Ventures IV, L.P. 2023-02-28 /s/ Hodong Nam 2023-02-28 /s/ Han Kim 2023-02-28 /s/ Anthony P. Lee, Authorized Signatory for Altos Ventures Management, Inc. 2023-02-28