Sec Form 3 Filing - O'Brien Michael Graham @ ZoomInfo Technologies Inc. - 2024-09-06

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person O'Brien Michael Graham 2. Issuer Name and Ticker or Trading Symbol ZoomInfo Technologies Inc. [ ZI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O ZOOMINFO TECHNOLOGIES INC.,, 805 BROADWAY STREET, SUITE 900 3. Date of Earliest Transaction (MM/DD/YY) 09/06/2024 (Street) VANCOUVER, WA98660 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 22,331 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 Restricted Stock Units ( 2 ) ( 1 ) ( 1 ) Common Stock 959 D Restricted Stock Units ( 2 ) ( 3 ) ( 3 ) Common Stock 1,709 D Restricted Stock Units ( 2 ) ( 4 ) ( 4 ) Common Stock 2,951 D Restricted Stock Units ( 2 ) ( 5 ) ( 5 ) Common Stock 15,548 D Restricted Stock Units ( 2 ) ( 6 ) ( 6 ) Common Stock 2,456 D Restricted Stock Units ( 2 ) ( 7 ) ( 7 ) Common Stock 12,231 D Restricted Stock Units ( 2 ) ( 8 ) ( 8 ) Common Stock 55,500 D HSKB Phantom Units ( 10 ) ( 9 ) ( 9 ) Common Stock 2,533 D HSKB Phantom Units ( 10 ) ( 11 ) ( 11 ) Common Stock 13,875 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other O'Brien Michael Graham C/O ZOOMINFO TECHNOLOGIES INC., 805 BROADWAY STREET, SUITE 900 VANCOUVER, WA98660 Chief Financial Officer Signatures /s/ Ashley McGrane, as Attorney-in-Fact 09/10/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person received an original grant of restricted stock units on September 1, 2021, and has a remaining total of 959 restricted stock units, which vest in equal quarterly installments during the 9 months following December 1, 2024. ( 2 )Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock. ( 3 )The Reporting Person received an original grant of restricted stock units on September 1, 2022, and has a remaining total of 1,709 restricted stock units, which vest in equal quarterly installments during the 21 months following December 1, 2024. ( 4 )The Reporting Person received an original grant of restricted stock units on December 1, 2022, and has a remaining total of 2,951 restricted stock units, which vest in equal quarterly installments during the 24 months following December 1, 2024. ( 5 )The Reporting Person received an original grant of restricted stock units on December 30, 2022, and has a remaining total of 15,548 restricted stock units, which vest in equal quarterly installments during the 27 months following October 1, 2024. ( 6 )The Reporting Person received an original grant of restricted stock units on March 23, 2023, and has a remaining total of 2,456 restricted stock units, which vest in equal quarterly installments during the 30 months following October 1, 2024. ( 7 )The Reporting Person received an original grant of restricted stock units on October 25, 2023, and has a remaining total of 12,231 restricted stock units, which vest in equal quarterly installments during the 36 months following October 1, 2024. ( 8 )The Reporting Person received an original grant of restricted stock units on December 29, 2023, and has a remaining total of 55,500 restricted stock units, which vest in equal quarterly installments during the 36 months following November 1, 2024. ( 9 )The Reporting Person received an original grant of Phantom Units of HSKB Funds II, LLC ("HSKB Phantom Units") on December 1, 2021, and has a remaining total of 2,533 HSKB Phantom Units, which vest in equal quarterly installments during the 12 months following December 1, 2024. ( 10 )Reflects Phantom Units of HSKB Funds II, LLC ("HSKB Phantom Units") that upon vesting settle into shares of Common Stock on a one-for-one basis. ( 11 )The Reporting Person received an original grant of Phantom Units of H SKB Funds II, LLC ("HSKB Phantom Units") on December 1, 2023, and has a remaining total of 13,875 HSKB Phantom Units, which vest in equal quarterly installments during the 24 months following November 1, 2024.

Remarks: EX-24 Power of Attorney

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.