RBLX

SEC source: 0001315098-21-000083 · wf-form4_164012589066479.xml · derivative · entry 6

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 850,000

Underlying: Class A Common Stock · 16,667 shares

Expires 2030-01-29

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.

F4 · derivative.exercise_date: 1/48th of the shares subject to the option vested on February 17, 2020, 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: 0001315098-21-000083 · wf-form4_164012589066479.xml · nonDerivative · entry 3

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,736

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 22, 2021.

SEC source: 0001315098-21-000083 · wf-form4_164012589066479.xml · nonDerivative · entry 2

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,069

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 22, 2021.

SEC source: 0001315098-21-000083 · wf-form4_164012589066479.xml · nonDerivative · entry 1

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,403

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.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 10

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 80,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F13 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $109.51 to $110.42, 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.

F9 · ownership.nature: These shares are held directly by the Donato Generation Skipping Trust dtd 09/04/2020 for which the reporting person and his spouse serve as trustees. The reporting person may be deemed to have beneficial ownership of the securities held by the Trust.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 9

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 82,971

F3 · kind: 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.

F12 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $108.50 to $109.48, 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.

F9 · ownership.nature: These shares are held directly by the Donato Generation Skipping Trust dtd 09/04/2020 for which the reporting person and his spouse serve as trustees. The reporting person may be deemed to have beneficial ownership of the securities held by the Trust.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 8

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 89,175

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F11 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $107.49 to $108.48, 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.

F9 · ownership.nature: These shares are held directly by the Donato Generation Skipping Trust dtd 09/04/2020 for which the reporting person and his spouse serve as trustees. The reporting person may be deemed to have beneficial ownership of the securities held by the Trust.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 7

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 111,898

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F10 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $106.49 to $107.48, 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.

F9 · ownership.nature: These shares are held directly by the Donato Generation Skipping Trust dtd 09/04/2020 for which the reporting person and his spouse serve as trustees. The reporting person may be deemed to have beneficial ownership of the securities held by the Trust.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 6

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 133,399

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F8 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $105.46 to $106.39, 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.

F9 · ownership.nature: These shares are held directly by the Donato Generation Skipping Trust dtd 09/04/2020 for which the reporting person and his spouse serve as trustees. The reporting person may be deemed to have beneficial ownership of the securities held by the Trust.

SEC source: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 5

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,135,597

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F7 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $109.53 to $110.41, 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: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 4

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,137,025

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F6 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $108.52 to $109.50, 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.

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: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 3

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,139,228

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F5 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $107.50 to $108.48, 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: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 2

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,148,840

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $106.50 to $107.49, 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: 0001315098-21-000081 · wf-form4_163961229246107.xml · nonDerivative · entry 1

Donato Craig · CIK 0001834992 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,157,990

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F2 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $105.45 to $106.41, 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · derivative · entry 11

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,717,390

Underlying: Class A Common Stock · 60,000 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.

F11 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 10

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,198

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 9

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,208

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F10 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $114.66 to $115.62, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 8

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,402

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F9 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $113.64 to $114.57, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 7

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,471

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F8 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $112.625 to $113.62, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 6

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,435

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F7 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $111.59 to $112.575, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 5

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,572

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F6 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $110.59 to $111.58, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 4

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,278

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F5 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $109.58 to $110.57, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 3

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,166

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $108.55 to $109.54, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 2

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,146

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 20, 2021.

F3 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $107.55 to $108.545, 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.

F1 · 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: 0001315098-21-000079 · wf-form4_163961038066632.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,198

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 · 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: 0001209191-21-068462 · doc4.xml · nonDerivative · entry 1

Altos Ventures Management Inc. · CIK 0001881755 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,330

F1 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by Altos Ventures Management Inc. to one of its members.

F2 · ownership.direct: These shares are held directly by Altos Ventures Management Inc. (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 of AVMI disclaim beneficial ownership of the shares except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-068460 · doc4.xml · nonDerivative · entry 1

Lee Anthony P · CIK 0001834988 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 33,330

F1 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by Altos Ventures Management Inc. to one of its members.

F2 · ownership.nature: These shares are held directly by Altos Ventures Management Inc. (AVMI). The Reporting Person is one of the Board of Directors of AVMI. The Reporting Person disclaims beneficial ownership of the shares held by AVMI 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 AVMI for Section 16 or any other purpose.

SEC source: 0001315098-21-000077 · wf-form4_163848462966600.xml · derivative · entry 4

Tolley Brett · CIK 0001835039 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,558

Underlying: Class A Common Stock · 808 shares

Expires 2030-08-31

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.

F4 · derivative.exercise_date: 1/48th of the shares subject to the option vested on November 1, 2020, 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: 0001315098-21-000077 · wf-form4_163848462966600.xml · derivative · entry 3

Tolley Brett · CIK 0001835039 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,811

Underlying: Class A Common Stock · 240 shares

Expires 2030-08-31

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.

F3 · derivative.exercise_date: 1/48th of the shares subject to the option vested on June 1, 2021, 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: 0001315098-21-000077 · wf-form4_163848462966600.xml · nonDerivative · entry 2

Tolley Brett · CIK 0001835039 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,827

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on March 23, 2021.

F1 · 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: 0001315098-21-000077 · wf-form4_163848462966600.xml · nonDerivative · entry 1

Tolley Brett · CIK 0001835039 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,875

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 · 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: 0001315098-21-000075 · wf-form4_163848446587443.xml · derivative · entry 3

Messing Barbara · CIK 0001615151 · CMKtg & People Exper Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 439,063

Underlying: Class A Common Stock · 11,979 shares

Expires 2030-08-31

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.

F2 · derivative.exercise_date: 1/4th of the shares subject to the option will become vested and exercisable as of August 31, 2021 and 1/48th of the shares subject to the option continue to vest monthly thereafter, subject to the Reporting Person continuing as a service provider through each vest date.

SEC source: 0001315098-21-000075 · wf-form4_163848446587443.xml · nonDerivative · entry 2

Messing Barbara · CIK 0001615151 · CMKtg & People Exper Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 359

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 27, 2021.

SEC source: 0001315098-21-000075 · wf-form4_163848446587443.xml · nonDerivative · entry 1

Messing Barbara · CIK 0001615151 · CMKtg & People Exper Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,338

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.

SEC source: 0001315098-22-000016 · wf-form5_164462291432092.xml · nonDerivative · entry 1

Carvalho Christopher · CIK 0001834989 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,231,957

F1 · kind: Represents a transfer of shares to a Donor Advised Fund.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 16

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 408,061

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F20 · ownership.nature: These shares are held directly by the Han Family Investments, LLC - Sub Fund No. 1 for which Han Kim serves as Managing Member. Mr. Kim disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 15

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,214,971

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F19 · ownership.nature: These shares are held directly by The Kim Living Trust for which Han Kim serves as trustee. Mr. Kim disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 12

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 408,061

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F17 · ownership.nature: These shares are held directly by the Nam-MacGill Investments, LLC - Sub Fund No. 1 for which Hodong Nam serves as Managing Member. Mr. Nam disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 11

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,227,473

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F16 · ownership.nature: These shares are held directly 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.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 9

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 62,168

F12 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Roblox SPV 1, LLC and Altos Roblox SPV 2020, LLC.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F13 · ownership.nature: These shares are held directly by Altos Ventures Management, Inc.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 8

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 16,317,319

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F11 · ownership.nature: These shares are held directly by Altos Ventures IV, L.P.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 7

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 612,950

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F10 · ownership.nature: These shares are held directly by Altos Ventures IV Reserve Fund, L.P.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 6

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 29,429,286

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F9 · ownership.nature: These shares are held directly by Altos Ventures IV Liquidity Fund, L.P.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 5

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 13,647,326

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F8 · ownership.nature: These shares are held directly by Altos Roblox SPV 2020, LLC.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 4

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 2,740,938

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F7 · ownership.nature: These shares are held directly by Altos Roblox SPV 2, LLC.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 3

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 19,595,485

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

F6 · ownership.nature: These shares are held directly by Altos Roblox SPV 1, LLC.

SEC source: 0001209191-21-067054 · doc4.xml · nonDerivative · entry 2

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 4, L.P. · CIK 0001826414 · 10% owner

Altos Hybrid 4 GP, LLC · CIK 0001848629 · 10% owner

Kim Han · CIK 0001836652 · 10% owner

Nam Hodong · CIK 0001836648 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 327,380

F5 · kind: Represents a pro-rata in kind distribution of the Issuer's Class A Common Stock by the Fund to its general partner.

F2 · ownership.nature: These shares are held directly by Altos Hybrid 2, L.P.

F3 · ownership.nature: The general partner of Altos Hybrid 2, L.P. is Altos Hybrid 2GP, 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 and 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 (collectively, the General Partners).

F4 · ownership.nature: The Managing Directors or Managing Members of the General Partners and the Managers of the Altos Funds are Anthony P. Lee, Han Kim and Hodong Nam who exercise investment and voting control over the shares held by the Altos Funds. Anthony P. Lee, a director of the Issuer, files separate Section 16 reports. Han Kim and Hodong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any.

SEC source: 0001209191-21-067052 · doc4.xml · nonDerivative · entry 16

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 2 GP, LLC · CIK 0001848631 · 10% owner

Altos Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

Altos Roblox SPV 2, LLC · CIK 0001747200 · 10% owner

Altos Management Partners IV, LLC · CIK 0001848634 · 10% owner

Altos Roblox SPV 2020, LLC · CIK 0001803466 · 10% owner

Altos Roblox 2020 Management Partners, LLC · CIK 0001848636 · 10% owner

Altos Ventures IV Liquidity Fund, L.P. · CIK 0001766317 · 10% owner

Altos Ventures IV Reserve Fund, L.P. · CIK 0001766268 · 10% owner

Altos Ventures IV, L.P. · CIK 0001833040 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 408,061

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F20 · ownership.nature: These shares are held directly by the Han Family Investments, LLC - Sub Fund No. 1 for which Han Kim serves as Managing Member. Mr. Kim disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001209191-21-067052 · doc4.xml · nonDerivative · entry 15

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 2 GP, LLC · CIK 0001848631 · 10% owner

Altos Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

Altos Roblox SPV 2, LLC · CIK 0001747200 · 10% owner

Altos Management Partners IV, LLC · CIK 0001848634 · 10% owner

Altos Roblox SPV 2020, LLC · CIK 0001803466 · 10% owner

Altos Roblox 2020 Management Partners, LLC · CIK 0001848636 · 10% owner

Altos Ventures IV Liquidity Fund, L.P. · CIK 0001766317 · 10% owner

Altos Ventures IV Reserve Fund, L.P. · CIK 0001766268 · 10% owner

Altos Ventures IV, L.P. · CIK 0001833040 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,214,971

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F19 · ownership.nature: These shares are held directly by The Kim Living Trust for which Han Kim serves as trustee. Mr. Kim disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001209191-21-067052 · doc4.xml · nonDerivative · entry 12

Altos Hybrid 2, L.P. · CIK 0001694364 · 10% owner

Altos Hybrid 2 GP, LLC · CIK 0001848631 · 10% owner

Altos Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

Altos Roblox SPV 2, LLC · CIK 0001747200 · 10% owner

Altos Management Partners IV, LLC · CIK 0001848634 · 10% owner

Altos Roblox SPV 2020, LLC · CIK 0001803466 · 10% owner

Altos Roblox 2020 Management Partners, LLC · CIK 0001848636 · 10% owner

Altos Ventures IV Liquidity Fund, L.P. · CIK 0001766317 · 10% owner

Altos Ventures IV Reserve Fund, L.P. · CIK 0001766268 · 10% owner

Altos Ventures IV, L.P. · CIK 0001833040 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 408,061

F15 · kind: Represents shares received in a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock from Altos Ventures IV, L.P., Altos Ventures IV Liquidity Fund, L.P., Altos Roblox SPV 1, LLC, Roblox SPV 2, LLC, Altos Ventures IV Reserve Fund, L.P. and Altos Roblox SPV 2020, LLC.

F17 · ownership.nature: These shares are held directly by the Nam-MacGill Investments, LLC - Sub Fund No. 1 for which Hodong Nam serves as Managing Member. Mr. Nam disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.