Sec Form 4 Filing - Altos Ventures IV Liquidity Fund, L.P. @ Roblox Corp - 2021-05-18

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Altos Ventures IV Liquidity Fund, L.P. 2. Issuer Name and Ticker or Trading Symbol Roblox Corp [ RBLX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2882 SAND HILL ROAD, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 05/18/2021 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 05/18/2021 J( 1 ) 2,829,651 D $ 0 21,723,455 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 5 ) Class A Common Stock 05/18/2021 J( 6 ) 379,622 D $ 0 3,037,031 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 7 ) Class A Common Stock 05/18/2021 J( 8 ) 1,915,072 D $ 0 15,111,305 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 9 ) Class A Common Stock 05/18/2021 J( 10 ) 4,056,390 D $ 0 32,451,143 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 11 ) Class A Common Stock 05/18/2021 J( 12 ) 84,878 D $ 0 701,305 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 13 ) Class A Common Stock 05/18/2021 J( 14 ) 2,260,010 D $ 0 18,080,116 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 15 ) Class A Common Stock 05/18/2021 J( 16 ) 60,315 A $ 0 67,551 I See Footnotes ( 17 ) Class A Common Stock 05/18/2021 J( 16 ) 625,198 A $ 0 1,014,200 I See Footnotes ( 18 ) Class A Common Stock 05/18/2021 J( 16 ) 625,199 A $ 0 1,014,222 I See Footnotes ( 19 ) Class A Common Stock 05/18/2021 J( 16 ) 60,315 A $ 0 67,551 I See Foonotes ( 20 ) Class A Common Stock 475,582 I See Footnotes ( 2 ) ( 3 ) ( 4 ) ( 21 ) Class A Common Stock 111,112 I See Footnotes ( 2 ) ( 3 ) ( 4 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Altos Ventures IV Liquidity Fund, L.P. 2882 SAND HILL ROAD SUITE 100 MENLO PARK, CA94025 X Altos Hybrid 4, L.P. 2882 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Altos Hybrid 4 GP, LLC 2882 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Altos Ventures IV Reserve Fund, L.P. 2882 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Kim Han 2882 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Nam Hodong 2882 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Signatures /s/Anthony P. Lee, Managing Director of Altos Management Partners IV, LLC, the General Partner of Altos Ventures IV Liquidity Fund L.P. 05/19/2021 Signature of Reporting Person Date Anthony P. Lee, Managing Director of Altos Hybrid 4 GP, LLC, the general partner of Altos Hybrid 4, L.P. 05/19/2021 Signature of Reporting Person Date Anthony P. Lee, Managing Director of Altos Hybrid 4 GP, LLC 05/19/2021 Signature of Reporting Person Date Anthony P. Lee, Managing Director of Altos Management Partners IV, LLC, the general partner of Altos Ventures IV Reserve Fund, L.P. 05/19/2021 Signature of Reporting Person Date Han Kim 05/19/2021 Signature of Reporting Person Date Hodong Nam 05/19/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Roblox SPV 1, LLC to its members. ( 2 )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 Hondong Nam disclaim beneficial ownership of the shares held by the Altos Funds except to the extent of their respective pecuriary interest therein, if any. ( 3 )The General Partners and the Managers disclaim beneficial ownership of the shares reported herein except to the extent of their respective pecuniary interests therein, if any. ( 4 )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; and the general partner of Altos Ventures IV Liquidity Fund, L.P., Altos Ventures IV Reserve Fund, L.P. and Altos Ventures IV, L.P. is Altos Management Partners IV, LLC (collectively, the General Partners). The manager of Altos Roblox SPV 1, LLC and Altos Roblox SPV 2, LLC is Altos Roblox Management Partners IV, LLC; and the manager of Altos Roblox SPV 2020, LLC is Altos Roblox 2020 Management Partners, LLC(collectively, the Managers). ( 5 )These shares are held directly by Altos Roblox SPV 1, LLC. ( 6 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Roblox SPV 2, LLC to its members. ( 7 )These shares are held directly by Altos Roblox SPV 2, LLC. ( 8 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Roblox SPV 2020, LLC to its members. ( 9 )These shares are held directly by Altos Roblox SPV 2020, LLC. ( 10 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Ventures IV Liquidity Fund, L.P. to its partners. ( 11 )These shares are held directly by Altos Ventures IV Liquidity Fund, L.P. ( 12 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Ventures IV Reserve Fund, L.P. to its partners. ( 13 )These shares are held directly by Altos Ventures IV Reserve Fund, L.P. ( 14 )Represents a pro-rata in kind distribution of the issuer's Class A Common Stock by Altos Ventures IV, L.P. to its partners. ( 15 )These shares are held directly by Altos Ventures IV, L.P. ( 16 )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. ( 17 )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. ( 18 )These shares are held directly by The Kim 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. ( 19 )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. ( 20 )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. ( 21 )These shares are held directly by Altos Hybrid 2, L.P.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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