DO Holdings (WA), LLC

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,377,329

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F10 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $61.51 to $62.38. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,085,297

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F9 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $63.62 to $64.61. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,223,412

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F8 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $62.62 to $63.61. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,336,651

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F7 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $69.62 to $70.18. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,393,426

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F6 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $64.62 to $65.61. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,433,048

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F5 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $68.62 to $69.61. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,464,161

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F4 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $65.62 to $66.56. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,482,574

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F3 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $66.62 to $67.59. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014345 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,493,474

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F2 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $67.62 to $68.61. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,504,357

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F8 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $67.35 to $68.34. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,024,500

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F7 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $66.35 to $67.34. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,478,994

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F6 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $68.35 to $69.34. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,586,289

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F5 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $72.45 to $73.44. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,677,159

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F4 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $70.35 to $71.25. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,725,107

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F3 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $71.45 to $72.44. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,772,879

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F2 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $69.35 to $70.29. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-014157 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,803,857

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 September 15, 2021. DO Holdings is substantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

SEC source: 0001225208-21-013958 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,804,357

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 September 15, 2021. DO Holdings is subtantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F5 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $76.78 to $77.49. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-013958 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,993,920

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 September 15, 2021. DO Holdings is subtantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F4 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $75.78 to $76.76. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-013958 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,175,030

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 September 15, 2021. DO Holdings is subtantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F3 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $75.12. to $76.11. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-013958 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,825,566

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 September 15, 2021. DO Holdings is subtantially owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of Henry Schuck.

F2 · price: The price in Column 4 is a weighted average sale price. The prices actually received ranged from $76.12 to $76.46. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001225208-21-013457 · doc4.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 17,104,357 shares

Expires not disclosed

F2 · derivative.exercise_price: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

F2 · kind: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

F2 · price: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

F2 · derivative.exercise_date: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

F2 · derivative.expiration_date: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

SEC source: 0001225208-21-013457 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,104,357

F1 · security: On October 29, 2021, pursuant to a reorganization, (the "Reorganization"), Zoomlnfo Technologies Inc. (formerly known as Zoomlnfo NewCo Inc.) (the "Issuer") became the successor of Zoomlnfo Intermediate Inc. (formerly known as Zoomlnfo Technologies Inc.) ("Zoomlnfo") pursuant to merger transactions, in which a subsidiary of Zoomlnfo Technologies Inc. merged with and into Zoomlnfo Intermediate Inc. with Zoomlnfo Intermediate Inc. surviving and, immediately following such merger, a subsidiary of Zoomlnfo Technologies Inc. merged with and into Zoomlnfo Holdings LLC ("OpCo"), a subsidiary of Zoomlnfo Intermediate Inc., with OpCo surviving. The mergers resulted in the Issuer becoming a parent holding company of Zoomlnfo and OpCo, but did not alter the proportionate economic interests of security holders.

F2 · kind: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

F2 · price: Prior to the Reorganization, pursuant to the terms of the limited liability company agreement for OpCo, limited liability company units of Opco ("OpCo Units") and an equal number of shares of Class B Common Stock, together were 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, andreclassifications. In connection with the Reorganization, the OpCo Units held by the Reporting Person were disposed of for a number of shares of Class A Common Stock which would have been received by the Reporting Person pursuant to the calculation described above, had the Reporting Person exchanged such OpCo Units for Class A Common Stock prior to the date of the Reorganization.

SEC source: 0001225208-21-013344 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The reporting person distributed these shares to its members on a pro rata basis, for no consideration.

SEC source: 0001415889-21-004758 · form4-10052021_031029.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,104,357

Underlying: Class A Common Stock · 494,000 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.

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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 1, 2021.

SEC source: 0001415889-21-004758 · form4-10052021_031029.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,397,535

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 $61.23 to $61.72, 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: 0001415889-21-004758 · form4-10052021_031029.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,534,890

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 $60.23 to $61.22, 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: 0001415889-21-004758 · form4-10052021_031029.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,808,842

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 $59.23 to $60.22, 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: 0001415889-21-004758 · form4-10052021_031029.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,891,535

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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on October 1, 2021.

SEC source: 0001415889-21-004289 · form4-09082021_040922.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,598,357

Underlying: Class A Common Stock · 26,397,535 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.

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.

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.

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.

SEC source: 0001415889-21-004289 · form4-09082021_040922.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,397,535

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: DO Holdings (WA), LLC is owned by Henry Schuck and 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.

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.

SEC source: 0001415889-21-004266 · form4-09072021_030940.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,995,892

Underlying: Class A Common Stock · 687,804 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.

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.

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.

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.

SEC source: 0001415889-21-004266 · form4-09072021_030940.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · kind: These sales were completed as a result of the September 2, 2021 exercise of an over-allotment option granted in connection with the underwritten secondary offering that closed on August 11, 2021.

SEC source: 0001415889-21-004266 · form4-09072021_030940.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 687,804

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: DO Holdings (WA), LLC is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of both Henry Schuck and 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.

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.

SEC source: 0001415889-21-004253 · form4-09032021_030914.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,683,696

Underlying: Class A Common Stock · 494,000 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.

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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 1, 2021.

SEC source: 0001415889-21-004253 · form4-09032021_030914.xml · nonDerivative · entry 3

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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $64.44 to $65.02, 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: 0001415889-21-004253 · form4-09032021_030914.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 303,904

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 $63.44 to $64.43, 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: 0001415889-21-004253 · form4-09032021_030914.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 494,000

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: 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on September 1, 2021.

SEC source: 0001415889-21-003921 · form4-08132021_050833.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,177,696

Underlying: Class A Common Stock · 4,585,361 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.

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.

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.

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.

SEC source: 0001415889-21-003921 · form4-08132021_050833.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · kind: These sales were effected pursuant to an underwritten secondary offering that closed on August 11, 2021.

SEC source: 0001415889-21-003921 · form4-08132021_050833.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,585,361

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: DO Holdings (WA), LLC is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of both Henry Schuck and 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.

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.

SEC source: 0001415889-21-003842 · form4-08102021_050836.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,763,057

Underlying: Class A Common Stock · 5,920,821 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.

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.

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.

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.

SEC source: 0001415889-21-003842 · form4-08102021_050836.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · kind: These sales were effected pursuant to an underwritten secondary offering that closed on August 6, 2021.

SEC source: 0001415889-21-003842 · form4-08102021_050836.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,920,821

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: DO Holdings is owned by Henry Schuck and Kirk Brown. The transactions reported in this Form 4 were for the benefit of both Henry Schuck and 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.

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.

SEC source: 0001415889-21-003818 · form4-08062021_040819.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,683,878

Underlying: Class A Common Stock · 494,000 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.

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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on August 4, 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on August 4, 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on August 4, 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 494,000 OpCo Units and an equal number of shares of Class B Common Stock on August 4, 2021.

SEC source: 0001415889-21-003818 · form4-08062021_040819.xml · nonDerivative · entry 6

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.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $59.72 to $60.70, 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: 0001415889-21-003818 · form4-08062021_040819.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,819

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.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $58.72 to $59.71, 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: 0001415889-21-003818 · form4-08062021_040819.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,062

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 $57.72 to $58.71, 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: 0001415889-21-003818 · form4-08062021_040819.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 448,837

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 $56.71 to $57.70, 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: 0001415889-21-003818 · form4-08062021_040819.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 485,300

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 $55.68 to $56.42, 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.