RBLX

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 9

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 4,907,579

F19 · kind: Represents shares of the Issuer's Class A Common Stock received by the reporting person in the various pro-rata in kind distributions from Altos Ventures IV, LP, Altos Ventures IV Liquidity Fund, L.P., Altos Ventures IV Reserve Fund, L.P., Altos Roblox SPV 1, LLC, Altos Roblox SPV 2, LLC and Altos Hybrid 2, L.P.

F20 · ownership.nature: These shares are held directly by Fallen Leaf Revocable Trust for which the reporting person serves as trustee. The reporting person disclaims beneficial ownership of the shares except to the extent if his pecuniary interest therein.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 8

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 33,674

F17 · kind: Represents shares of the Issuer's Class A Common Stock received by Altos Ventures Management Inc. (AVMI) in a pro-rata in kind sub-distributions from Altos Roblox SPV 1, LLC and Altos Roblox SPV 2020, LLC.

F18 · ownership.nature: These shares are held directly by AVMI. The members of the Board of Directors of 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 disclaims beneficial ownership of the shares except to the extent of pecuniary interest therein.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 7

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 151,424

F15 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Hybrid 2, L.P.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F16 · ownership.nature: These shares are held directly by Altos Hybrid 2, L.P.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 6

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 5,681,003

F13 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Roblox SPV 2020, LLC to its partners.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F14 · ownership.nature: These shares are held directly by Altos Roblox SPV 2020, LLC.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 5

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,140,979

F11 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Roblox SPV 2, LLC to its partners.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F12 · ownership.nature: These shares are held directly by Altos Roblox SPV 2, LLC.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 4

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 7,267,193

F9 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Roblox SPV 1, LLC to its partners.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F10 · ownership.nature: These shares are held directly by Altos Roblox SPV 1, LLC.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 3

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 265,718

F7 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Ventures IV Reserve Fund, L.P. to its partners.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F8 · ownership.nature: These shares are held directly by Altos Ventures IV Reserve Fund, L.P.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 2

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 12,250,589

F5 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Ventures IV Liquidity Fund, L.P. to its partners.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

F6 · ownership.nature: These shares are held directly by Altos Ventures IV Liquidity Fund, L.P.

SEC source: 0001104659-24-099904 · tm2424001-1_4seq1.xml · nonDerivative · entry 1

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 6,792,448

F1 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Ventures IV, L.P. to its partners.

F2 · ownership.nature: These shares are held directly by Altos Ventures IV, L.P.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F4 · ownership.nature: The reporting person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The reporting person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the reporting person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

SEC source: 0001315098-24-000222 · wk-form4_1726270253.xml · derivative · entry 6

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,458,947

Underlying: Class A Common Stock · 3,443 shares

Expires 2028-02-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: 1/48th of the shares subject to the option vested on February 5, 2019, and 1/48th of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001315098-24-000222 · wk-form4_1726270253.xml · nonDerivative · entry 2

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 352,844

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 18, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.04, 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.

F2 · balance_after: 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.

SEC source: 0001315098-24-000222 · wk-form4_1726270253.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 356,287

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 18, 2023.

F2 · balance_after: 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.

SEC source: 0001315098-24-000214 · wk-form4_1726092599.xml · nonDerivative · entry 1

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 727,485

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on May 15, 2024.

F2 · balance_after: 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.

SEC source: 0001315098-24-000212 · wk-form4_1725567608.xml · derivative · entry 4

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,462,390

Underlying: Class A Common Stock · 30,000 shares

Expires 2028-02-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: 1/48th of the shares subject to the option vested on February 5, 2019, and 1/48th of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001315098-24-000212 · wk-form4_1725567608.xml · nonDerivative · entry 2

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 352,844

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 18, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $42.71 to $43.50, 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.

F2 · balance_after: 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.

SEC source: 0001315098-24-000212 · wk-form4_1725567608.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 382,844

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 18, 2023.

F2 · balance_after: 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.

SEC source: 0001415889-24-023053 · form4-09062024_100931.xml · nonDerivative · entry 1

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Ventures Management, Inc. (AVMI).

F2 · ownership.nature: These shares are held directly by AVMI.

F3 · ownership.nature: The reporting person is a member of the board of directors of AVMI, and disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

SEC source: 0001315098-24-000208 · wk-form4_1724975481.xml · nonDerivative · entry 1

Rawlings Amy Marie · CIK 0001875017 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 87,360

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on May 29, 2024.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.81 to $44.30, 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 · balance_after: 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 · balance_after: Includes 1 share acquired by the Reporting Person on August 26, 2024 pursuant to the Issuer's 2020 Employee Stock Purchase Plan.

SEC source: 0001315098-24-000207 · wk-form4_1724975262.xml · nonDerivative · entry 1

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnotes

Disclosed balance after: 9,675,103

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 28, 2023.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.80 to $44.43, 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 · ownership.nature: These shares are held of record by the Greg and Christina Baszucki Living Trust dtd 08/18/2006 of which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the shares held by the Trust.

SEC source: 0001315098-24-000210 · wk-form4_1724976103.xml · nonDerivative · entry 1

Chakravarthy Arvind · CIK 0002015855 · Chief People & Systems Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 276,892

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F2 · balance_after: 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 · balance_after: Includes 592 share acquired by the Reporting Person on August 26, 2024 pursuant to the Issuer's 2020 Employee Stock Purchase Plan.

SEC source: 0001315098-24-000203 · wk-form4_1724717510.xml · nonDerivative · entry 2

Chakravarthy Arvind · CIK 0002015855 · Chief People & Systems Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 276,892

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $44.37 to $44.42, 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 · balance_after: 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.

SEC source: 0001315098-24-000203 · wk-form4_1724717510.xml · nonDerivative · entry 1

Chakravarthy Arvind · CIK 0002015855 · Chief People & Systems Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 277,069

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.33 to $44.27, 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 · balance_after: 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.

SEC source: 0001415889-24-022260 · form4-08272024_120834.xml · nonDerivative · entry 3

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 165,190

F5 · kind: Represents a sale of shares of the Issuer's Class A Common Stock by Altos Hybrid 2, L.P.

F6 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.40 to $43.66, 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.

F7 · ownership.nature: These shares are held directly by Altos Hybrid 2, L.P.

F8 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2 GP, LLC; the general partner of Altos Hybrid 4, L.P. is Altos Hybrid 4 GP, LLC; the general partner of Altos Ventures IV, L.P. is Altos Management Partners IV, LLC; the general partner of Altos Ventures IV Liquidity Fund, L.P. and Altos Ventures IV Reserve Fund, L.P. is Altos IV LR GP, LLC; the general partner of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the general partner of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC (collectively, the General Partners).

F9 · ownership.nature: The Reporting Person is one of managing members of the general partners and managers of the respective entities that hold shares reported herein (the Altos Funds). The Reporting Person disclaims beneficial ownership of the shares held by the Altos Funds except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of any of the shares held by the Altos Funds for Section 16 or any other purpose.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · derivative · entry 9

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,910

Underlying: Class A Common Stock · 166,666 shares

Expires 2026-03-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F10 · derivative.exercise_date: All of the shares subject to the option are fully vested and exercisable as of the date hereof.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 8

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 604,167

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.15 to $44.02, 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.

F9 · ownership.nature: These shares are held by the 2020 Jan Baszucki Gift Trust dtd 4/3/2020 of which the Bessemer Trust Company of Delaware, N.A. serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Gift Trust.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 7

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 229,167

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.15 to $44.02, 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.

F8 · ownership.nature: These shares are held by the 2020 David Baszucki Gift Trust dtd 4/3/2020 for which the Bessemer Trust of Delaware, N.A. serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Gift Trust.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 6

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 875

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.15 to $44.02, 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.

F7 · ownership.nature: These shares are held by The Baszucki Family Foundation. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Foundation.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 5

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 34,208

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F6 · kind: Represents a transfer of shares by the Freedom Revocable Trust dated February 28, 2017 as amended to The Baszucki Family Foundation.

F7 · ownership.nature: These shares are held by The Baszucki Family Foundation. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Foundation.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 4

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 2,014,020

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F6 · kind: Represents a transfer of shares by the Freedom Revocable Trust dated February 28, 2017 as amended to The Baszucki Family Foundation.

F5 · ownership.nature: These shares are held directly by The Freedom Revocable Trust dated February 28, 2017 as amended, and for which the reporting person serves as trustee.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 3

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 2,047,353

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F4 · kind: The shares reported in this transaction represent a gift to a charitable organization.

F5 · ownership.nature: These shares are held directly by The Freedom Revocable Trust dated February 28, 2017 as amended, and for which the reporting person serves as trustee.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 2

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 135,761

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.15 to $44.02, 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.

F2 · balance_after: 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.

SEC source: 0001315098-24-000201 · wk-form4_1724716728.xml · nonDerivative · entry 1

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 302,427

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on November 29, 2023.

F2 · balance_after: 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.

SEC source: 0001315098-24-000181 · wk-form4_1724362322.xml · nonDerivative · entry 2

Chakravarthy Arvind · CIK 0002015855 · Chief People & Systems Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,068

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000181 · wk-form4_1724362322.xml · nonDerivative · entry 1

Chakravarthy Arvind · CIK 0002015855 · Chief People & Systems Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,096

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000193 · wk-form4_1724362886.xml · nonDerivative · entry 2

Rawlings Amy Marie · CIK 0001875017 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,617

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000193 · wk-form4_1724362886.xml · nonDerivative · entry 1

Rawlings Amy Marie · CIK 0001875017 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,625

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000195 · wk-form4_1724362939.xml · derivative · entry 2

Mastantuono Gina · CIK 0001465391 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,215

Underlying: Class A Common Stock · 1,833 shares

Expires not disclosed

F3 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of Class A common stock.

F1 · kind: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F4 · derivative.exercise_date: The phantom stock becomes payable in one lump sum payment upon separation from service.

F4 · derivative.expiration_date: The phantom stock becomes payable in one lump sum payment upon separation from service.

SEC source: 0001315098-24-000195 · wk-form4_1724362939.xml · nonDerivative · entry 1

Mastantuono Gina · CIK 0001465391 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,873

F1 · kind: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · balance_after: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F2 · balance_after: 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.

SEC source: 0001315098-24-000191 · wk-form4_1724362825.xml · derivative · entry 2

KILAR JASON · CIK 0001239764 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,191

Underlying: Class A Common Stock · 1,191 shares

Expires not disclosed

F3 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of Class A common stock.

F1 · kind: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,191 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,191 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,191 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,191 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,191 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,191 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F4 · derivative.exercise_date: The phantom stock becomes payable in one lump sum payment upon separation from service.

F4 · derivative.expiration_date: The phantom stock becomes payable in one lump sum payment upon separation from service.

SEC source: 0001315098-24-000191 · wk-form4_1724362825.xml · nonDerivative · entry 1

KILAR JASON · CIK 0001239764 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,614

F1 · kind: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,191 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,191 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,191 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,191 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,191 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,191 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · balance_after: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,191 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,191 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,191 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F2 · balance_after: 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.

SEC source: 0001315098-24-000189 · wk-form4_1724362759.xml · nonDerivative · entry 2

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,761

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000189 · wk-form4_1724362759.xml · nonDerivative · entry 1

Baszucki David · CIK 0001834991 · Director · President & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,772

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000185 · wk-form4_1724362478.xml · nonDerivative · entry 2

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 352,844

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000185 · wk-form4_1724362478.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 352,878

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000187 · wk-form4_1724362635.xml · nonDerivative · entry 2

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 768,224

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000187 · wk-form4_1724362635.xml · nonDerivative · entry 1

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 768,295

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000183 · wk-form4_1724362389.xml · nonDerivative · entry 2

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 326,077

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.72 to $40.73, 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 · balance_after: 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.

SEC source: 0001315098-24-000183 · wk-form4_1724362389.xml · nonDerivative · entry 1

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 326,103

F1 · kind: Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). This sale was to satisfy tax withholding obligations to be funded by a "sell to cover' transaction.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.71, 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 · balance_after: 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.

SEC source: 0001315098-24-000179 · wk-form4_1724362155.xml · derivative · entry 6

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,215

Underlying: Class A Common Stock · 1,833 shares

Expires not disclosed

F7 · derivative.exercise_price: Each share of phantom stock represents a right to receive one share of Class A common stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F8 · derivative.exercise_date: The phantom stock becomes payable in 10 equal annual installments starting on the date the Reporting Person ceases to be a service provider.

F8 · derivative.expiration_date: The phantom stock becomes payable in 10 equal annual installments starting on the date the Reporting Person ceases to be a service provider.

SEC source: 0001315098-24-000179 · wk-form4_1724362155.xml · nonDerivative · entry 1

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,721

F1 · kind: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · price: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F1 · balance_after: In connection with the vesting on August 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,833 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,833 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,833 shares of Class A common stock in exchange for an equal number of shares of phantom stock.

F2 · balance_after: 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.