FIVN

SEC source: 0001288847-24-000020 · wk-form4_1709762280.xml · nonDerivative · entry 2

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 315,171

F4 · shares: Settlement of non-derivative performance-based RSUs

SEC source: 0001288847-24-000020 · wk-form4_1709762280.xml · nonDerivative · entry 1

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 245,828

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.24 to $60.79, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-24-000019 · wk-form4_1709156188.xml · nonDerivative · entry 1

Mansharamani Leena · CIK 0001846877 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,940

SEC source: 0001288847-24-000018 · wk-form4_1709156103.xml · nonDerivative · entry 1

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,000

SEC source: 0001288847-24-000017 · wk-form4_1709156017.xml · nonDerivative · entry 1

Dignan Andy · CIK 0002000932 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,569

F1 · balance_after: Includes 108 shares acquired under the Five9, Inc. Employee Stock Purchase Plan on November 15, 2023.

SEC source: 0001288847-24-000016 · wk-form4_1709155945.xml · nonDerivative · entry 1

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,619

SEC source: 0001288847-24-000015 · wk-form4_1709155808.xml · nonDerivative · entry 1

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,426

SEC source: 0001288847-24-000014 · wk-form4_1709155627.xml · nonDerivative · entry 1

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 255,573

SEC source: 0001288847-23-000169 · wk-form4_1702071749.xml · nonDerivative · entry 2

Dignan Andy · CIK 0002000932 · CHIEF OPERATING OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 104,777

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.81 to $79.40, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000171 · wk-form4_1702071995.xml · nonDerivative · entry 1

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,742

F1 · shares: Shares withheld by the Issuer to satisfy tax withholding obligation due to the vesting of Restricted Stock Units ("RSUs").

SEC source: 0001288847-23-000170 · wk-form4_1702071897.xml · nonDerivative · entry 1

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,935

F1 · shares: Shares withheld by the Issuer to satisfy tax withholding obligation due to the vesting of Restricted Stock Units ("RSUs").

SEC source: 0001288847-23-000169 · wk-form4_1702071749.xml · nonDerivative · entry 1

Dignan Andy · CIK 0002000932 · CHIEF OPERATING OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 109,592

F1 · shares: Shares withheld by the Issuer to satisfy tax withholding obligation due to the vesting of Restricted Stock Units ("RSUs").

SEC source: 0001288847-23-000168 · wk-form4_1702071536.xml · nonDerivative · entry 2

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,807

F2 · shares: Shares withheld by the Issuer to satisfy tax withholding obligation due to the vesting of Restricted Stock Units ("RSUs").

SEC source: 0001288847-23-000168 · wk-form4_1702071536.xml · nonDerivative · entry 1

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,921

F1 · shares: Settlement of non-derivative performance-based RSUs

SEC source: 0001288847-23-000167 · wk-form4_1701897760.xml · nonDerivative · entry 1

Mansharamani Leena · CIK 0001846877 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,243

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.28 to $78.36, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 9

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,051

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 8

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,151

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.25 to $89.81 inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 7

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,314

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.19 to $89.16 inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 6

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,914

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.02 to $87.44 inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 5

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,214

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.98 to $86.97 inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 4

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,714

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.82 to $85.82, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 3

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 77,292

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.38 to $80.21, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 2

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,139

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.27 to $79.38, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000166 · wk-form4_1701897589.xml · nonDerivative · entry 1

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,091

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.26 to $79.25 inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 6

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 167,925

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 5

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 168,105

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.43 to $89.09, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 4

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 168,674

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.50 to $87.49, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 3

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 169,203

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.02 to $85.53, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 2

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 169,515

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.13 to $79.47, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000165 · wk-form4_1701897460.xml · nonDerivative · entry 1

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 173,465

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.12 to $79.06, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000164 · wk-form4_1701120547.xml · nonDerivative · entry 1

Dignan Andy · CIK 0002000932 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,461

SEC source: 0001288847-23-000163 · wk-form4_1700601488.xml · derivative · entry 3

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,459

Underlying: Common Stock · 16,000 shares

Expires 2026-11-14

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_date: The option granted on November 14, 2016 is fully vested.

SEC source: 0001288847-23-000163 · wk-form4_1700601488.xml · nonDerivative · entry 2

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 103,360

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.00 to $75.11, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000163 · wk-form4_1700601488.xml · nonDerivative · entry 1

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,360

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.

SEC source: 0001288847-23-000137 · wk-form4_1694118963.xml · nonDerivative · entry 3

Mansharamani Leena · CIK 0001846877 · SVP, Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,833

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 31, 2022.

SEC source: 0001288847-23-000140 · wk-form4_1694119306.xml · nonDerivative · entry 2

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 103,360

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.86 to $71.58, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000140 · wk-form4_1694119306.xml · nonDerivative · entry 1

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 106,562

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.50 to $70.86, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000139 · wk-form4_1694119166.xml · nonDerivative · entry 1

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,601

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.87 to $71.03, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000138 · wk-form4_1694119075.xml · nonDerivative · entry 3

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,911

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.88 to $71.57, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000138 · wk-form4_1694119075.xml · nonDerivative · entry 2

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 88,757

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.53 to $70.92, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000138 · wk-form4_1694119075.xml · nonDerivative · entry 1

Kozanian Panos · CIK 0001940974 · EVP, Product Engineering

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 89,901

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.50 to $70.88, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000137 · wk-form4_1694118963.xml · nonDerivative · entry 2

Mansharamani Leena · CIK 0001846877 · SVP, Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,165

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.01 to $71.21, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000137 · wk-form4_1694118963.xml · nonDerivative · entry 1

Mansharamani Leena · CIK 0001846877 · SVP, Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,073

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 31, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.66 to $70.74, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000136 · wk-form4_1694118858.xml · nonDerivative · entry 1

Burkland Michael · CIK 0001604097 · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 177,671

F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units.

F2 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.52 to $71.51, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000135 · wk-form4_1692304503.xml · derivative · entry 6

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,376

Underlying: Common Stock · 10,000 shares

Expires 2028-02-26

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.

F5 · derivative.exercise_date: The option granted on February 26, 2018 is fully vested.

SEC source: 0001288847-23-000135 · wk-form4_1692304503.xml · nonDerivative · entry 4

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 94,608

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.75 to $71.71, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000135 · wk-form4_1692304503.xml · nonDerivative · entry 3

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,306

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.73 to $70.73, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000135 · wk-form4_1692304503.xml · nonDerivative · entry 2

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 101,263

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.72 to $69.72, inclusive. The reporting person undertakes to provide Five9, Inc., any security holder of Five9, Inc., 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 ranges set forth in this footnote.

SEC source: 0001288847-23-000135 · wk-form4_1692304503.xml · nonDerivative · entry 1

ZWARENSTEIN BARRY · CIK 0001227348 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 104,608

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.

SEC source: 0001288847-23-000120 · wk-form4_1691095109.xml · derivative · entry 5

Burkland Daniel P. · CIK 0001604052 · Pres. & Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,459

Underlying: Common Stock · 8,000 shares

Expires 2026-11-14

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.

F5 · derivative.exercise_date: The option granted on November 14, 2016 is fully vested.