GTM

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 19

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F12 · ownership.nature: Securities are held by TA XI DO Feeder, L.P ("XI DO").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 18

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F11 · ownership.nature: Securities are held by TA SDF III DO Feeder, L.P. ("SDF III Feeder").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 17

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F9 · ownership.nature: Securities are held by TA AP VII-B DO Subsidiary Partnership, L.P. ("AP VII-B").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 16

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F8 · ownership.nature: Securities are held by TA XI DO AIV II, L.P. ("XI DO AIV II").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 15

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F7 · ownership.nature: Securities are held by TA SDF III DO AIV II, L.P. ("SDF III DO AIV II").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 14

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F6 · ownership.nature: Securities are held by TA Investors IV, L.P. ("Investors IV").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 13

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F5 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-A, L.P. ("Atlantic & Pacific VII-A").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 12

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F4 · ownership.nature: Securities are held by TA SDF III DO AIV, L.P. ("SDF III DO").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 11

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: Securities are held by TA XI DO AIV, L.P. ("XI DO AIV").

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 10

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 31,507

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F13 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-B, L.P. ("Atlantic & Pacific VII-B").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 9

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 35,119

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F12 · ownership.nature: Securities are held by TA XI DO Feeder, L.P ("XI DO").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 8

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 662

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F11 · ownership.nature: Securities are held by TA SDF III DO Feeder, L.P. ("SDF III Feeder").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 7

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,876

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F9 · ownership.nature: Securities are held by TA AP VII-B DO Subsidiary Partnership, L.P. ("AP VII-B").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 6

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 8,779

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F8 · ownership.nature: Securities are held by TA XI DO AIV II, L.P. ("XI DO AIV II").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 5

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 166

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F7 · ownership.nature: Securities are held by TA SDF III DO AIV II, L.P. ("SDF III DO AIV II").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 4

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 4,986

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F6 · ownership.nature: Securities are held by TA Investors IV, L.P. ("Investors IV").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 3

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 23,185

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F5 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-A, L.P. ("Atlantic & Pacific VII-A").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 2

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,466

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F4 · ownership.nature: Securities are held by TA SDF III DO AIV, L.P. ("SDF III DO").

SEC source: 0001209191-21-042182 · doc4.xml · nonDerivative · entry 1

Mironov Jason · CIK 0001810831 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 134,254

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F2 · ownership.nature: Securities are held by TA XI DO AIV, L.P. ("XI DO AIV").

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 30

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 11,703,928

Underlying: Class A Common Stock · 31,507 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.

F17 · derivative.exercise_price: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.exercise_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.expiration_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F13 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-B, L.P. ("Atlantic & Pacific VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 29

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 13,045,372

Underlying: Class A Common Stock · 35,119 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.

F17 · derivative.exercise_price: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.exercise_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.expiration_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F12 · ownership.nature: Securities are held by TA XI DO Feeder, L.P ("XI DO").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 28

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 246,003

Underlying: Class A Common Stock · 662 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.

F17 · derivative.exercise_price: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.exercise_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F17 · derivative.expiration_date: The Class C Common Stock is convertible at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer and has no expiration date. Upon any transfer of shares of Class C Common Stock, whether or not for value, each such transferred share will automatically convert into one share of Class A Common Stock, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. The shares of Class C Common Stock will convert automatically into Class A Common Stock, on a one-for-one basis, when the aggregate number of outstanding shares of the Company's Class B Common Stock and Class C Common Stock represents less than 5% of the aggregate number of the Company's outstanding shares of Common Stock. The shares of Class C Common Stock have ten votes per share.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F11 · ownership.nature: Securities are held by TA SDF III DO Feeder, L.P. ("SDF III Feeder").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 27

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 2,983,864

Underlying: Class A Common Stock · 7,876 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F9 · ownership.nature: Securities are held by TA AP VII-B DO Subsidiary Partnership, L.P. ("AP VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 26

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,323,681

Underlying: Class A Common Stock · 8,779 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F8 · ownership.nature: Securities are held by TA XI DO AIV II, L.P. ("XI DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 25

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 62,686

Underlying: Class A Common Stock · 166 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F7 · ownership.nature: Securities are held by TA SDF III DO AIV II, L.P. ("SDF III DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 24

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,852,211

Underlying: Class A Common Stock · 4,986 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F6 · ownership.nature: Securities are held by TA Investors IV, L.P. ("Investors IV").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 23

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 8,612,789

Underlying: Class A Common Stock · 23,185 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F5 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-A, L.P. ("Atlantic & Pacific VII-A").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 22

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,287,455

Underlying: Class A Common Stock · 3,466 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F4 · ownership.nature: Securities are held by TA SDF III DO AIV, L.P. ("SDF III DO").

SEC source: 0001209191-21-042181 · doc4.xml · derivative · entry 21

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 49,871,658

Underlying: Class A Common Stock · 134,254 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.

F16 · derivative.exercise_price: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.exercise_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F16 · derivative.expiration_date: Units of Opco represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, which together are exchangeable at the option of the holder on a one-for-one basis for shares of Class A Common Stock of the Issuer, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications, pursuant to the amended and restated limited liability company agreement of Opco and have no expiration date. The shares of Class B Common Stock (i) confer no incidents of economic ownership on the holders thereof and (ii) only confer ten-to-one voting rights on the holders thereof.

F2 · ownership.nature: Securities are held by TA XI DO AIV, L.P. ("XI DO AIV").

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 20

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F13 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-B, L.P. ("Atlantic & Pacific VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 19

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F12 · ownership.nature: Securities are held by TA XI DO Feeder, L.P ("XI DO").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 18

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F11 · ownership.nature: Securities are held by TA SDF III DO Feeder, L.P. ("SDF III Feeder").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 17

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F9 · ownership.nature: Securities are held by TA AP VII-B DO Subsidiary Partnership, L.P. ("AP VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 16

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F8 · ownership.nature: Securities are held by TA XI DO AIV II, L.P. ("XI DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 15

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F7 · ownership.nature: Securities are held by TA SDF III DO AIV II, L.P. ("SDF III DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 14

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F6 · ownership.nature: Securities are held by TA Investors IV, L.P. ("Investors IV").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 13

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F5 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-A, L.P. ("Atlantic & Pacific VII-A").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 12

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F4 · ownership.nature: Securities are held by TA SDF III DO AIV, L.P. ("SDF III DO").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 11

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F14 · kind: The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on December 6, 2020.

F15 · price: Reflects a weighted-average sale price. The shares were sold in multiple transactions at prices ranging from $50.50 to $50.75. The Reporting Persons will provide upon request to the Securities and Exchange Commission, the Company or security holder of the Company, full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: Securities are held by TA XI DO AIV, L.P. ("XI DO AIV").

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 10

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 31,507

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F13 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-B, L.P. ("Atlantic & Pacific VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 9

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 35,119

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F12 · ownership.nature: Securities are held by TA XI DO Feeder, L.P ("XI DO").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 8

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 662

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 · price: Shares of the Issuer's Class C Common Stock were converted on a one-for-one basis for shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F11 · ownership.nature: Securities are held by TA SDF III DO Feeder, L.P. ("SDF III Feeder").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 7

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 7,876

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F9 · ownership.nature: Securities are held by TA AP VII-B DO Subsidiary Partnership, L.P. ("AP VII-B").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 6

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 8,779

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F8 · ownership.nature: Securities are held by TA XI DO AIV II, L.P. ("XI DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 5

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 166

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F7 · ownership.nature: Securities are held by TA SDF III DO AIV II, L.P. ("SDF III DO AIV II").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 4

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 4,986

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F6 · ownership.nature: Securities are held by TA Investors IV, L.P. ("Investors IV").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 3

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 23,185

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F5 · ownership.nature: Securities are held by TA Atlantic & Pacific VII-A, L.P. ("Atlantic & Pacific VII-A").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 2

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,466

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

F4 · ownership.nature: Securities are held by TA SDF III DO AIV, L.P. ("SDF III DO").

SEC source: 0001209191-21-042181 · doc4.xml · nonDerivative · entry 1

Crockett Todd · CIK 0001356054 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 134,254

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 · price: Units of ZoomInfo Holdings LLC ("Opco"), which represent limited liability company units of Opco and a corresponding number of shares of Class B Common Stock of the Issuer, were exchanged on a one-for-one basis for shares of Class A Common Stock of the Issuer pursuant to the amended and restated limited liability company agreement of Opco.

F2 · ownership.nature: Securities are held by TA XI DO AIV, L.P. ("XI DO AIV").

F3 · ownership.nature: TA Associates, L.P. is the ultimate general partner of each of XI DO, SDF III Feeder, Atlantic & Pacific VII-B, XI DO AIV, SDF III DO, Atlantic & Pacific VII-A, Investors IV, AP VII-B, SDF III DO AIV II and XI DO AIV II (collectively, the "TA Associates Funds"). Investment and voting control of the TA Associates Funds is held by TA Associates, L.P. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest in such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001794515-21-000154 · wf-form4_162396436503418.xml · derivative · entry 6

Schuck Henry · CIK 0001813217 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 400,000 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.

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for OpCo, OpCo Units and an equal number of shares of Class B Common Stock, together are exchangeable for shares of Class A Common Stock on a one-for-one basis at the discretion of the holder, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. These exchange rights do not expire. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a 10b5-1 trading plan entered into prior to November 30, 2020.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for OpCo, OpCo Units and an equal number of shares of Class B Common Stock, together are exchangeable for shares of Class A Common Stock on a one-for-one basis at the discretion of the holder, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. These exchange rights do not expire. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for OpCo, OpCo Units and an equal number of shares of Class B Common Stock, together are exchangeable for shares of Class A Common Stock on a one-for-one basis at the discretion of the holder, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. These exchange rights do not expire. Shares of Class B Common Stock have no economic value and have 10 votes per share.