Sec Form 4 Filing - SLTA IV (GP), L.L.C. @ Unity Software Inc. - 2021-11-19

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 SLTA IV (GP), L.L.C. 2. Issuer Name and Ticker or Trading Symbol Unity Software Inc. [ U] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SILVER LAKE, 2775 SAND HILL ROAD, SUITE 100 3. Date of Earliest Transaction (MM/DD/YY) 11/19/2021 (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 Common Stock 11/19/2021 S 88,113 D $ 190.31( 9 ) 24,739,380 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 1,701 D $ 190.31( 9 ) 457,216 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 48,895 D $ 191.56( 10 ) 24,690,485 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 944 D $ 191.56( 10 ) 456,272 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 48,661 D $ 192.44( 11 ) 24,641,824 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 939 D $ 192.44( 11 ) 455,333 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 4,308 D $ 193.2( 12 ) 24,637,516 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 83 D $ 193.2( 12 ) 455,250 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 23,421 D $ 196.52( 13 ) 24,614,095 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 452 D $ 196.52( 13 ) 454,798 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 11,708 D $ 197.52( 14 ) 24,602,387 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 226 D $ 197.52( 14 ) 454,572 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 13,943 D $ 198.44( 15 ) 24,588,444 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 269 D $ 198.44( 15 ) 454,303 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/19/2021 S 589 D $ 199.05( 16 ) 24,587,855 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/19/2021 S 11 D $ 199.05( 16 ) 454,292 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/22/2021 S 37,639 D $ 180.52( 17 ) 24,550,216 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/22/2021 S 721 D $ 180.52( 17 ) 453,571 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/22/2021 S 20,760 D $ 181.4( 18 ) 24,529,456 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/22/2021 S 397 D $ 181.4( 18 ) 453,174 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/22/2021 S 10,322 D $ 182.48( 19 ) 24,519,134 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/22/2021 S 198 D $ 182.48( 19 ) 452,976 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 11/22/2021 S 2,600 D $ 183.68( 20 ) 24,516,534 I Held through Silver Lake Partners IV, L.P.( 1 )( 5 ) Common Stock 11/22/2021 S 50 D $ 183.68( 20 ) 452,926 I Held through Silver Lake Technology Investors IV (Delaware II), L.P.( 2 )( 5 ) Common Stock 14,422,668 I Held through SLP Union Aggregator, L.P.( 3 )( 5 ) Common Stock 73,209 I Held through Silver Lake Group, L.L.C.( 4 )( 5 ) Common Stock 44,091 D( 6 ) Common Stock 1,557 I See footnote( 7 ) Common Stock 15,755 I See footnote( 8 )

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 SLTA IV (GP), L.L.C. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X X Silver Lake Group, L.L.C. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X X Silver Lake Partners IV, L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X X Silver Lake Technology Investors IV (Delaware II), L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X X Silver Lake Technology Associates IV, L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X X Durban Egon C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK, CA94025 X Signatures By: /s/ Egon Durban, Co-CEO of Silver Lake Group, L.L.C. 11/23/2021 Signature of Reporting Person Date By: /s/ Egon Durban, Co-CEO of Silver Lake Group, L.L.C., managing member of SLTA IV (GP), L.L.C. 11/23/2021 Signature of Reporting Person Date By: /s/ Egon Durban, Co-CEO of Silver Lake Group, L.L.C., managing member of SLTA IV (GP), L.L.C., general partner of Silver Lake Technology Associates IV, L.P. 11/23/2021 Signature of Reporting Person Date By: /s/ Egon Durban, Co-CEO of Silver Lake Group, L.L.C., managing member of SLTA IV (GP), L.L.C., general partner of Silver Lake Technology Associates IV, L.P., general partner of Silver Lake Partners IV, L.P. 11/23/2021 Signature of Reporting Person Date By: /s/ Egon Durban, Co-CEO of Silver Lake Group, L.L.C., managing member of SLTA IV (GP), L.L.C., GP of Silver Lake Technology Associates IV, L.P., general partner of Silver Lake Technology Investors IV (Delaware II), L.P. 11/23/2021 Signature of Reporting Person Date EGON DURBAN: /s/ Egon Durban 11/23/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These securities are directly owned by Silver Lake Partners IV, L.P. ("SLP IV"). ( 2 )These securities are directly owned by Silver Lake Technology Investors IV (Delaware II), L.P. ("SLTI IV"). ( 3 )These securities are directly owned by SLP Union Aggregator, L.P. ("SLP Union"), the general partner of which is SLP Union GP, L.L.C. ("SLP Union GP"). ( 4 )These securities are directly owned by Silver Lake Group, L.L.C. ("SLG"). ( 5 )Silver Lake Technology Associates IV, L.P. ("SLTA IV") is the general partner of SLP IV and SLTI IV and the managing member of SLP Union GP. The general partner of SLTA IV is SLTA IV (GP), L.L.C. ("SLTA IV GP"), the managing member of which is SLG. Mr. Durban serves as a director of the Issuer and Co-CEO and a Managing Partner of SLG. Each of SLP IV, SLTI IV, SLP Union, SLP Union GP, SLTA IV, SLTA IV GP and SLG may be deemed to be a director by deputization of the Issuer. ( 6 )Represents shares of Common Stock held by Mr. Egon Durban. ( 7 )Represents shares of Common Stock beneficially owned indirectly by Mr. Durban through a trust for the benefit of certain family members. ( 8 )These securities are held by Mr. Durban for the benefit of Silver Lake Technology Management, L.L.C., certain of its affiliates, and certain of the funds they manage ("Silver Lake"). Mr. Durban serves as a director of the Issuer. Pursuant to Mr. Durban's arrangement with Silver Lake with respect to director compensation, upon the sale of these securities, the proceeds from such sale(s) are expected to be remitted to Silver Lake and/or its limited partners. Mr. Durban, through his role at Silver Lake and its affiliates, may be deemed to have an indirect interest in the securities reported herein. ( 9 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.00 to $190.98, inclusive. The reporting persons undertake to provide to 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 ranges set forth in the footnotes to this Form 4. ( 10 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $191.00 to $191.99, inclusive. ( 11 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $192.00 to $192.99, inclusive. ( 12 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $193.00 to $193.73, inclusive. ( 13 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.00 to $196.90, inclusive. ( 14 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $197.01 to $197.99, inclusive. ( 15 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $198.00 to $198.97, inclusive. ( 16 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.00 to $199.215, inclusive. ( 17 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.00 to $180.99, inclusive. ( 18 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.00 to $181.99, inclusive. ( 19 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.00 to $182.97, inclusive. ( 20 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.00 to $183.99, inclusive.

Remarks: The Reporting Persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). This filing shall not be deemed an admission that the Reporting Persons are beneficial owners of all securities covered by this filing for purposes of Section 16 of the Exchange Act or otherwise, and each Reporting Person disclaims beneficial ownership of these securities, except to the extent of such Reporting Person's pecuniary interest therein, if any.

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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