Sec Form 3 Filing - Blum Alexander @ Unity Software Inc. - 2024-11-01

FORM 3 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 Blum Alexander 2. Issuer Name and Ticker or Trading Symbol Unity Software Inc. [ U] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP, Chief Operating Officer (Last) (First) (Middle) C/O 30 3RD STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/01/2024 (Street) SAN FRANCISCO, CA94103 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 437,572 ( 1 ) D

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 Stock Option (Right to Buy) $ 16.15 ( 2 )( 3 )( 4 ) 07/08/2034 Common Stock 340,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Blum Alexander C/O 30 3RD STREET SAN FRANCISCO, CA94103 SVP, Chief Operating Officer Signatures /s/ Nora Go, Attorney-in-fact 11/04/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents restricted stock units ("RSUs") granted to the Reporting Person that shall vest 25% on August 25, 2025, and 6.25% of the RSUs shall vest quarterly thereafter, subject to the Reporting Person's continuous service through the vesting period. ( 2 )Represents shares subject to an option which will vest during a four-year performance period beginning on July 8, 2024 and ending on July 8, 2028 (the "Performance Period") and will be divided into two vesting tranches, each covering 50% of the total shares subject to the award. Each vesting tranche is subject to satisfaction of a continued service requirement and a stock price hurdle. The vesting date for a particular vesting tranche will be the date that both the applicable continued service requirement and the applicable stock price hurdle are satisfied with respect to such vesting tranche. ( 3 )(Continued from footnote 2 above) For the continued service requirement to be satisfied with respect to a particular vesting tranche, the Reporting Person must remain in continuous service through the applicable end date for such vesting tranche as follows: (i) July 8, 2025 for the first vesting tranche and (ii) July 8, 2026 for the second vesting tranche. The stock price hurdle for a particular vesting tranche will be satisfied if during the Performance Period, the volume-weighted average trading price of Issuer's common stock on the New York Stock Exchange equals or exceeds the applicable stock price hurdle for such vesting tranche for a period of 60 consecutive calendar days. ( 4 )(Continued from footnote 3 above) The stock price hurdles are as follows: (i) $35.00 with respect to the first vesting tranche and (ii) $50.00 with respect to the second vesting tranche.

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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