RBLX

SEC source: 0001315098-24-000056 · wk-form4_1710277138.xml · nonDerivative · entry 1

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnotes

Disclosed balance after: 9,776,466

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 $39.87 to $40.84, 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: 0001315098-24-000052 · wk-form4_1709680897.xml · derivative · entry 7

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,642,390

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.

F10 · 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: 0001315098-24-000052 · wk-form4_1709680897.xml · nonDerivative · entry 4

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 396,709

F3 · 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.

F5 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $41.29 to $41.50, 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 · ownership.direct: 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: 0001315098-24-000052 · wk-form4_1709680897.xml · nonDerivative · entry 3

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 398,309

F3 · 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.

F4 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $40.27 to $41.02, 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 · ownership.direct: 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: 0001315098-24-000052 · wk-form4_1709680897.xml · nonDerivative · entry 2

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 426,709

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 · ownership.direct: 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: 0001315098-24-000054 · wk-form4_1709681081.xml · derivative · entry 2

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,624

Underlying: Class A Common Stock · 175,624 shares

Expires not disclosed

F3 · derivative.exercise_price: Each performance stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F4 · shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

F5 · derivative.exercise_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F5 · derivative.expiration_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F4 · derivative.underlying_shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

SEC source: 0001315098-24-000054 · wk-form4_1709681081.xml · nonDerivative · entry 1

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 860,606

F1 · shares: These securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 1/12th of the RSUs shall vest on May 20, 2024 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · 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: 0001315098-24-000053 · wk-form4_1709680986.xml · derivative · entry 7

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,110

Underlying: Class A Common Stock · 118,110 shares

Expires not disclosed

F8 · derivative.exercise_price: Each performance stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F9 · shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

F10 · derivative.exercise_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F10 · derivative.expiration_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F9 · derivative.underlying_shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

SEC source: 0001315098-24-000053 · wk-form4_1709680986.xml · nonDerivative · entry 1

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 359,453

F1 · shares: These securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 1/12th of the RSUs shall vest on May 20, 2024 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · 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: 0001315098-24-000052 · wk-form4_1709680897.xml · derivative · entry 6

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 175,624

Underlying: Class A Common Stock · 175,624 shares

Expires not disclosed

F7 · derivative.exercise_price: Each performance stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F8 · shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

F9 · derivative.exercise_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F9 · derivative.expiration_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F8 · derivative.underlying_shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

SEC source: 0001315098-24-000052 · wk-form4_1709680897.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 396,709

F1 · shares: These securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 1/12th of the RSUs shall vest on May 20, 2024 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · ownership.direct: 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: 0001315098-24-000051 · wk-form4_1709680802.xml · derivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,500,000 shares

Expires 2028-03-02

F10 · kind: The issuer cancelled the award because it determined that the award was no longer satisfying the compensation objectives for the Reporting Person that were set at the time of the grant of the award. None of the stock price goals associated with the award were achieved and no shares subject to the award have vested.

F11 · derivative.exercise_date: The restricted stock unit is divided into seven tranches that are eligible to vest based on the achievement of the Company's stock price goals, beginning on the two year anniversary of the Company's initial public offering and ending on the seven year anniversary of the Company's initial public offering, provided that in each case, the Reporting Person continues to be a service provider to the Company on such date and that for each tranche, the stock price goal set forth in the restricted stock unit agreement between the Company and the Reporting Person for the corresponding annual period has been achieved.

SEC source: 0001315098-24-000051 · wk-form4_1709680802.xml · derivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 893,068

Underlying: Class A Common Stock · 893,068 shares

Expires not disclosed

F7 · derivative.exercise_price: Each performance stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F8 · shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

F9 · derivative.exercise_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F9 · derivative.expiration_date: The vesting of the performance stock units ("PSUs") is subject to satisfying both a performance-based requirement and a service-based requirement. The performance-based requirement is satisfied based on the achievement of certain cumulative Bookings and covenant adjusted EBITDA targets by the Issuer between January 1, 2024 and December 31, 2025. Subject to continued service by the Reporting Person on each vesting date, 67% of the PSUs eligible to vest based on performance will vest following certification of performance results by our Leadership Development and Compensation Committee within 60 days following December 31, 2025 and the remaining 33% of the PSUs eligible to vest based on performance will vest in approximately equal quarterly installments thereafter on each of May 20, 2026, August 20, 2026, November 20, 2026, and February 20, 2027, subject to continued service.

F8 · derivative.underlying_shares: Represents that maximum number of shares of Class A Common Stock which may be issued under this award.

SEC source: 0001315098-24-000051 · wk-form4_1709680802.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,845

F1 · shares: These securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 1/12th of the RSUs shall vest on May 20, 2024 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · ownership.direct: 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: 0001315098-24-000043 · wk-form4_1709169357.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: 354,167

F3 · 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 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $39.55 to $40.39, 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.

F7 · 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: 0001315098-24-000043 · wk-form4_1709169357.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 729,167

F3 · 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 $39.55 to $40.40, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 · 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: 0001315098-24-000043 · wk-form4_1709169357.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 23,114,695

Underlying: Class A Common Stock · 1,408,630 shares

Expires not disclosed

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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the election of the Reporting Person and has no expiration date.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the election of the Reporting Person and has no expiration date.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the election of the Reporting Person and has no expiration date.

F2 · 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: 0001315098-24-000043 · wk-form4_1709169357.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Indirect · See Footnote

Disclosed balance after: 2,233,631

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: Each share of the Class A Common Stock was issued upon conversion of one share of Class B Common Stock at the election of the Reporting Person.

F2 · 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: 0001315098-24-000039 · wk-form4_1708652702.xml · nonDerivative · entry 2

Rawlings Amy Marie · CIK 0001875017 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 94,616

F4 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on August 28, 2023.

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: 0001315098-24-000039 · wk-form4_1708652702.xml · nonDerivative · entry 1

Rawlings Amy Marie · CIK 0001875017 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 96,125

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 $40.40 to $41.19, 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: 0001315098-24-000040 · wk-form4_1708652780.xml · derivative · entry 9

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 420,528

Underlying: Class A Common Stock · 4,000 shares

Expires 2030-12-09

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: 1/4th of the shares subject to the option became vested and exercisable on December 4, 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: 0001315098-24-000040 · wk-form4_1708652780.xml · nonDerivative · entry 3

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 249,779

F3 · 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 $40.40 to $41.19, 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: 0001315098-24-000040 · wk-form4_1708652780.xml · nonDerivative · entry 2

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 258,310

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 24, 2023.

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: 0001315098-24-000040 · wk-form4_1708652780.xml · nonDerivative · entry 1

Reinstra Mark · CIK 0001835037 · Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 262,310

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: 0001315098-24-000038 · wk-form4_1708652634.xml · nonDerivative · entry 1

Guthrie Michael · CIK 0001607880 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233,629

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 $40.40 to $41.19, 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: 0001315098-24-000037 · wk-form4_1708652569.xml · nonDerivative · entry 1

Bronstein Manuel · CIK 0001847776 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 697,526

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 $40.40 to $41.19, 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: 0001315098-24-000033 · wk-form4_1708652388.xml · nonDerivative · entry 2

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 492,026

F3 · 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 $40.40 to $41.19, 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: 0001315098-24-000035 · wk-form4_1708652427.xml · derivative · entry 2

Mastantuono Gina · CIK 0001465391 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,788

Underlying: Class A Common Stock · 1,596 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 · price: In connection with the vesting on February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 two lump sum payments each at 50% on March 1, 2028 subject to the Reporting Person continuing as a service provider through March 1, 2028 and 50% on a separation from service.

F4 · derivative.expiration_date: The phantom stock becomes payable in two lump sum payments each at 50% on March 1, 2028 subject to the Reporting Person continuing as a service provider through March 1, 2028 and 50% on a separation from service.

SEC source: 0001315098-24-000035 · wk-form4_1708652427.xml · nonDerivative · entry 1

Mastantuono Gina · CIK 0001465391 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,966

F1 · kind: In connection with the vesting on February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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: 0001315098-24-000036 · wk-form4_1708652475.xml · derivative · entry 6

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,788

Underlying: Class A Common Stock · 1,596 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 · kind: In connection with the vesting on February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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: 0001315098-24-000036 · wk-form4_1708652475.xml · nonDerivative · entry 1

Baszucki Gregory · CIK 0001834990 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,814

F1 · kind: In connection with the vesting on February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,596 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 1,596 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 1,596 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: 0001315098-24-000033 · wk-form4_1708652388.xml · derivative · entry 5

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,028

Underlying: Class A Common Stock · 11,757 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 11,757 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 11,757 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 11,757 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 3 equal annual installments starting on March 1, 2026 subject to the Reporting Person continuing as a service provider through March 1, 2026.

F8 · derivative.expiration_date: The phantom stock becomes payable in 3 equal annual installments starting on March 1, 2026 subject to the Reporting Person continuing as a service provider through March 1, 2026.

SEC source: 0001315098-24-000033 · wk-form4_1708652388.xml · nonDerivative · entry 1

Sturman Daniel · CIK 0001835042 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 499,788

F1 · kind: In connection with the vesting on February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 11,757 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 11,757 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 11,757 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 11,757 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 11,757 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 11,757 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 February 20, 2024, of restricted stock units previously granted to the reporting person, the reporting person's receipt of 11,757 shares of Class A common stock was deferred, resulting in the reporting person's receipt instead of 11,757 shares of phantom stock pursuant to Roblox Corporation's deferred compensation plan. The reporting person is therefore reporting the disposition of 11,757 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: 0001315098-24-000019 · wk-form4_1708032314.xml · nonDerivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 875

F4 · 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 by The Baszucki Family Foundation. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Foundation.

SEC source: 0001315098-24-000019 · wk-form4_1708032314.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 825,001

F4 · kind: Represents a transfer of shares by the Freedom Revocable Trust dated February 28, 2017 as amended to The Baszucki Family Foundation.

F3 · 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: 0001315098-24-000019 · wk-form4_1708032314.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 825,876

F2 · kind: Represents a transfer of shares by spouse to the Freedom Revocable Trust dated February 28, 2017 as amended.

F3 · 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: 0001315098-24-000019 · wk-form4_1708032314.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 0

F2 · kind: Represents a transfer of shares by spouse to the Freedom Revocable Trust dated February 28, 2017 as amended.

SEC source: 0001315098-24-000019 · wk-form4_1708032314.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 875

F1 · kind: The shares being reported were acquired from an estate inheritance.

SEC source: 0001315098-24-000015 · wk-form4_1707863057.xml · derivative · entry 18

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 734,730

Underlying: Class A Common Stock · 200,000 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.

F11 · derivative.exercise_date: All of the shares subject to the option are fully vested and exercisable as of the date hereof.

SEC source: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 14

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 17, 2023.

F8 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.73 to $44.63, 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: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 13

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 40,000

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 17, 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: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 12

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 825,001

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 17, 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: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 11

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 865,001

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 17, 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: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 10

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 17, 2023.

F8 · price: The price reported in column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $43.73 to $44.63, 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.

SEC source: 0001315098-24-000015 · wk-form4_1707863057.xml · nonDerivative · entry 9

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,001

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 February 17, 2023.

SEC source: 0001415889-24-003612 · form4-02132024_110210.xml · nonDerivative · entry 7

Altos Ventures IV, L.P. · CIK 0001833040 · 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 Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

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

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

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

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 178,852

F14 · kind: Represents 23,072 shares acquired in a pro-rata in kind distribution of the Issuer's Class A Common Stock by Altos Roblox SPV 1, LLC.

F15 · ownership.nature: 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: 0001415889-24-003612 · form4-02132024_110210.xml · nonDerivative · entry 6

Altos Ventures IV, L.P. · CIK 0001833040 · 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 Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

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

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

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

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,230,368

F12 · kind: Represents a pro-rata in kind distribution by Altos Roblox SPV 2020, LLC to its partners.

F3 · ownership.nature: 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 manager of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the manager of Altos Roblox SPV 2020, LLC is Altos Roblox Management Partners, 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 is a director of the Issuer and 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 pecuniary interest therein, if any.

F13 · ownership.nature: These shares are held directly by Altos Roblox SPV 2020, LLC.

SEC source: 0001415889-24-003612 · form4-02132024_110210.xml · nonDerivative · entry 5

Altos Ventures IV, L.P. · CIK 0001833040 · 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 Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

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

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

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

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,452,156

F10 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Roblox SPV 2, LLC.

F3 · ownership.nature: 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 manager of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the manager of Altos Roblox SPV 2020, LLC is Altos Roblox Management Partners, 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 is a director of the Issuer and 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 pecuniary interest therein, if any.

F11 · ownership.nature: These shares are held directly by Altos Roblox SPV 2, LLC.

SEC source: 0001415889-24-003612 · form4-02132024_110210.xml · nonDerivative · entry 4

Altos Ventures IV, L.P. · CIK 0001833040 · 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 Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

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

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

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

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 10,381,705

F8 · kind: Represents a pro-rata in kind distribution of shares of the Issuer's Class A Common Stock by Altos Roblox SPV 1, LLC.

F3 · ownership.nature: 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 manager of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the manager of Altos Roblox SPV 2020, LLC is Altos Roblox Management Partners, 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 is a director of the Issuer and 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 pecuniary interest therein, if any.

F9 · ownership.nature: These shares are held directly by Altos Roblox SPV 1, LLC.

SEC source: 0001415889-24-003612 · form4-02132024_110210.xml · nonDerivative · entry 3

Altos Ventures IV, L.P. · CIK 0001833040 · 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 Roblox SPV 1, LLC · CIK 0001747201 · 10% owner

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

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

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

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 338,188

F6 · 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 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 manager of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners, LLC; and the manager of Altos Roblox SPV 2020, LLC is Altos Roblox Management Partners, 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 is a director of the Issuer and 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 pecuniary interest therein, if any.

F7 · ownership.nature: These shares are held directly by Altos Ventures IV Reserve Fund, L.P.