GTM

SEC source: 0001415889-21-002379 · form4-05072021_030551.xml · nonDerivative · entry 4

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $48.22 to $49.11, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-002379 · form4-05072021_030551.xml · nonDerivative · entry 3

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,862

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.10 to $48.09, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-002379 · form4-05072021_030551.xml · nonDerivative · entry 2

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 91,785

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $46.10 to $47.09, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-002379 · form4-05072021_030551.xml · nonDerivative · entry 1

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 253,950

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F2 · kind: Reflects securities held directly by DO Holdings.

F3 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 253,950 OpCo Units and an equal number of shares of Class B Common Stock on May 5, 2021.

F3 · price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 253,950 OpCo Units and an equal number of shares of Class B Common Stock on May 5, 2021.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001794515-21-000111 · wf-form4_161972988004640.xml · derivative · entry 3

Enright Keith · CIK 0001813220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,771

Underlying: Class A Common Stock · 3,771 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F4 · derivative.exercise_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

SEC source: 0001794515-21-000111 · wf-form4_161972988004640.xml · derivative · entry 2

Enright Keith · CIK 0001813220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 9,524 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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F1 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F3 · derivative.exercise_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

F3 · derivative.expiration_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

SEC source: 0001794515-21-000111 · wf-form4_161972988004640.xml · nonDerivative · entry 1

Enright Keith · CIK 0001813220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,111

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 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F1 · price: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

SEC source: 0001794515-21-000113 · wf-form4_161973008890314.xml · derivative · entry 3

MADER MARK PATRICK · CIK 0001200925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,771

Underlying: Class A Common Stock · 3,771 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F4 · derivative.exercise_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

SEC source: 0001794515-21-000113 · wf-form4_161973008890314.xml · derivative · entry 2

MADER MARK PATRICK · CIK 0001200925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 9,524 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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F1 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F3 · derivative.exercise_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

F3 · derivative.expiration_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

SEC source: 0001794515-21-000113 · wf-form4_161973008890314.xml · nonDerivative · entry 1

MADER MARK PATRICK · CIK 0001200925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,666

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 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F1 · price: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

SEC source: 0001794515-21-000115 · wf-form4_161973033235154.xml · derivative · entry 3

Dhruv Mitesh · CIK 0001705419 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,771

Underlying: Class A Common Stock · 3,771 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F4 · derivative.exercise_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units shall vest on the earlier of April 27, 2022 or the date of the Issuer's next annual meeting of stockholders.

SEC source: 0001794515-21-000115 · wf-form4_161973033235154.xml · derivative · entry 2

Dhruv Mitesh · CIK 0001705419 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 9,524 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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled into either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer.

F1 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F3 · derivative.exercise_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

F3 · derivative.expiration_date: The Reporting Person received an original grant totaling 9,524 restricted stock units which vested on April 27, 2021, the date of the Issuer's first annual meeting of stockholders following the original grant date.

SEC source: 0001794515-21-000115 · wf-form4_161973033235154.xml · nonDerivative · entry 1

Dhruv Mitesh · CIK 0001705419 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,808

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 · kind: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

F1 · price: Reflects restricted stock units that upon vesting settled into shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") on a one-for-one basis.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 13

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 · 137,335 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.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 12

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,335

Underlying: Class A Common Stock · 137,335 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.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,863,514

Underlying: Class A Common Stock · 137,335 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.

F10 · derivative.exercise_price: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. 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.

F10 · derivative.exercise_date: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F10 · derivative.expiration_date: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F10 · derivative.underlying: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.55 to $47.94, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,808

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.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $46.55 to $47.54, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,335

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

F7 · kind: On April 16, 2021, 137,335 HSKB Units held directly by the Reporting Person were exchanged for OpCo Units together with an equal number of shares of Class B Common Stock. These OpCo Units and shares of Class B Common Stock were exchanged for shares of Class A Common Stock which were sold as described herein.

F3 · 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.

SEC source: 0001794515-21-000105 · wf-form4_161887006716655.xml · derivative · entry 2

HSKB Funds, LLC · CIK 0001834204 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,843,305

Underlying: Class A Common Stock · 137,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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.

F2 · kind: Reflects a distribution of OpCo Units to one or more employees of ZoomInfo and its subsidiaries.

F1 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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 · derivative.underlying: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 10

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 · 262,665 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.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,665

Underlying: Class A Common Stock · 262,665 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.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000,849

Underlying: Class A Common Stock · 262,665 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.

F10 · derivative.exercise_price: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. 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.

F10 · derivative.exercise_date: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F10 · derivative.expiration_date: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

F10 · derivative.underlying: Each of these HSKB Units represents the economic value of one OpCo Unit. Each such HSKB Unit is fully vested and is exchangeable, at the Reporting Person's option, into an OpCo Unit and a share of Class B Common Stock, which together are exchangeable by the Issuer for shares of Class A Common Stock on a one-for-one basis, subject to exchange rate adjustments for stock splits, stock dividends, and reclassifications. Shares of Class B Common Stock have no economic value and have 10 votes per share.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $49.04 to $49.92, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,179

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.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $48.04 to $49.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,329

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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.04 to $48.03, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000103 · wf-form4_161886986817120.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,665

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

F2 · kind: On April 15, 2021, 262,665 limited liability company units of HSKB Funds, LLC ("HSKB Units") held directly by the Reporting Person were exchanged for limited liability company units ("OpCo Units") of ZoomInfo Holdings LLC ("OpCo") together with an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo" or the "Issuer"). These OpCo Units and shares of Class B Common Stock were exchanged for shares of ZoomInfo's Class A common stock ("Class A Common Stock") which were sold as described herein.

F3 · 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.

SEC source: 0001794515-21-000105 · wf-form4_161887006716655.xml · derivative · entry 1

HSKB Funds, LLC · CIK 0001834204 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,980,640

Underlying: Class A Common Stock · 262,665 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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.

F2 · kind: Reflects a distribution of OpCo Units to one or more employees of ZoomInfo and its subsidiaries.

F1 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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 · derivative.underlying: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of Class B common stock ("Class B Common Stock") of ZoomInfo Technologies Inc. ("ZoomInfo"), together are exchangeable for shares of Class A common stock of ZoomInfo 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.

SEC source: 0001794515-21-000101 · wf-form4_161826323024666.xml · derivative · entry 5

Hays Joseph Christopher · CIK 0001813655 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,704

Underlying: Class A Common Stock · 15,000 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.

F1 · kind: Reflects Class P limited liability company units of ZoomInfo Holdings LLC ("Class P Units") which are profits interests that are economically similar to a stock settled stock option. Vested Class P units are exchangeable, at the holder's election, into a number of shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") equal in value to the "spread value" represented by the excess of the value of shares of Class A Common Stock at the time of exchange above the "distribution threshold" associated with the Class P Units, multiplied by the number of Class P Units being exchanged. The number reflected in Table II reflects the number of Class P Units held by the Reporting Person. Reflects an original amount of 350,704 Class P Units, of which 50% vested on July 1, 2020, and the remaining 50% vest in equal monthly installments during the 24 months following July 1, 2020.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F1 · derivative.exercise_date: Reflects Class P limited liability company units of ZoomInfo Holdings LLC ("Class P Units") which are profits interests that are economically similar to a stock settled stock option. Vested Class P units are exchangeable, at the holder's election, into a number of shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") equal in value to the "spread value" represented by the excess of the value of shares of Class A Common Stock at the time of exchange above the "distribution threshold" associated with the Class P Units, multiplied by the number of Class P Units being exchanged. The number reflected in Table II reflects the number of Class P Units held by the Reporting Person. Reflects an original amount of 350,704 Class P Units, of which 50% vested on July 1, 2020, and the remaining 50% vest in equal monthly installments during the 24 months following July 1, 2020.

F1 · derivative.expiration_date: Reflects Class P limited liability company units of ZoomInfo Holdings LLC ("Class P Units") which are profits interests that are economically similar to a stock settled stock option. Vested Class P units are exchangeable, at the holder's election, into a number of shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") equal in value to the "spread value" represented by the excess of the value of shares of Class A Common Stock at the time of exchange above the "distribution threshold" associated with the Class P Units, multiplied by the number of Class P Units being exchanged. The number reflected in Table II reflects the number of Class P Units held by the Reporting Person. Reflects an original amount of 350,704 Class P Units, of which 50% vested on July 1, 2020, and the remaining 50% vest in equal monthly installments during the 24 months following July 1, 2020.

SEC source: 0001794515-21-000101 · wf-form4_161826323024666.xml · nonDerivative · entry 4

Hays Joseph Christopher · CIK 0001813655 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F5 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions ranging from $49.00 to $49.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000101 · wf-form4_161826323024666.xml · nonDerivative · entry 3

Hays Joseph Christopher · CIK 0001813655 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 600

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions ranging from $47.98 to $48.94, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001794515-21-000101 · wf-form4_161826323024666.xml · nonDerivative · entry 2

Hays Joseph Christopher · CIK 0001813655 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,752

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F3 · kind: Reflects shares deemed to be withheld in connection with the exchange of Class P Units described herein.

SEC source: 0001794515-21-000101 · wf-form4_161826323024666.xml · nonDerivative · entry 1

Hays Joseph Christopher · CIK 0001813655 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

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 · kind: Reflects Class P limited liability company units of ZoomInfo Holdings LLC ("Class P Units") which are profits interests that are economically similar to a stock settled stock option. Vested Class P units are exchangeable, at the holder's election, into a number of shares of Class A common stock ("Class A Common Stock") of ZoomInfo Technologies Inc. (the "Issuer") equal in value to the "spread value" represented by the excess of the value of shares of Class A Common Stock at the time of exchange above the "distribution threshold" associated with the Class P Units, multiplied by the number of Class P Units being exchanged. The number reflected in Table II reflects the number of Class P Units held by the Reporting Person. Reflects an original amount of 350,704 Class P Units, of which 50% vested on July 1, 2020, and the remaining 50% vest in equal monthly installments during the 24 months following July 1, 2020.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001415889-21-001933 · form4-04072021_030444.xml · derivative · entry 5

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,659,878

Underlying: Class A Common Stock · 186,721 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.

F2 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F2 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F2 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F2 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

SEC source: 0001415889-21-001933 · form4-04072021_030444.xml · nonDerivative · entry 4

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $48.49 to $49.12, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001933 · form4-04072021_030444.xml · nonDerivative · entry 3

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,260

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.48 to $48.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001933 · form4-04072021_030444.xml · nonDerivative · entry 2

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,917

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $46.48 to $47.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001933 · form4-04072021_030444.xml · nonDerivative · entry 1

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,721

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F2 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F2 · price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

SEC source: 0001415889-21-001935 · form4-04072021_030439.xml · derivative · entry 5

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,749,837

Underlying: Class A Common Stock · 186,721 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 ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F7 · balance_after: Reflects the Reporting Person's proportionate pecuniary interest in the securities held directly by DO Holdings following the sales reported in this Form 4.

F7 · ownership.nature: Reflects the Reporting Person's proportionate pecuniary interest in the securities held directly by DO Holdings following the sales reported in this Form 4.

SEC source: 0001415889-21-001935 · form4-04072021_030439.xml · nonDerivative · entry 4

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $48.49 to $49.12, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-001935 · form4-04072021_030439.xml · nonDerivative · entry 3

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 11,260

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.48 to $48.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-001935 · form4-04072021_030439.xml · nonDerivative · entry 2

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 69,917

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $46.48 to $47.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-001935 · form4-04072021_030439.xml · nonDerivative · entry 1

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 186,721

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F2 · kind: Reflects securities held directly by DO Holdings.

F3 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F3 · price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 186,721 OpCo Units and an equal number of shares of Class B Common Stock on April 5, 2021.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.

SEC source: 0001415889-21-001883 · form4-04052021_020438.xml · derivative · entry 5

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,846,599

Underlying: Class A Common Stock · 307,279 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.

F2 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F2 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F2 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F2 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

SEC source: 0001415889-21-001883 · form4-04052021_020438.xml · nonDerivative · entry 4

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $49.83 to $50.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001883 · form4-04052021_020438.xml · nonDerivative · entry 3

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,858

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $48.83 to $49.82, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001883 · form4-04052021_020438.xml · nonDerivative · entry 2

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,861

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $47.83 to $48.82, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001415889-21-001883 · form4-04052021_020438.xml · nonDerivative · entry 1

DO Holdings (WA), LLC · CIK 0001813992 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,279

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Kirk Brown.

F2 · kind: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F2 · price: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of the Reporting Person, 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. The Reporting Person effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

SEC source: 0001415889-21-001884 · form4-04052021_020436.xml · derivative · entry 5

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,936,558

Underlying: Class A Common Stock · 307,279 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 ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for ZoomInfo Holdings LLC ("OpCo"), limited liability company units of OpCo ("OpCo Units") and an equal number of shares of the Issuer's Class B common stock ("Class B Common Stock"), together are exchangeable for shares of Issuer's Class A common stock on a one-for-one basis at the discretion of DO Holdings, 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. DO Holdings effected an exchange of 307,279 OpCo Units and an equal number of shares of Class B Common Stock on April 1, 2021.

F7 · balance_after: Reflects the Reporting Person's proportionate pecuniary interest in the securities held directly by DO Holdings following the sales reported in this Form 4.

F7 · ownership.nature: Reflects the Reporting Person's proportionate pecuniary interest in the securities held directly by DO Holdings following the sales reported in this Form 4.

SEC source: 0001415889-21-001884 · form4-04052021_020436.xml · nonDerivative · entry 4

Brown Kirk Norman · CIK 0001814058 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by DO Holdings (WA), LLC ("DO Holdings") on December 15, 2020. DO Holdings is owned by the Reporting Person and Henry Schuck. The transactions reported in this Form 4 were for the benefit of the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $49.83 to $50.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2 · ownership.nature: Reflects securities held directly by DO Holdings.