ACOSTA JACK L

SEC source: 0001225954-26-000002 · wk-form4_1780605550.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,117

Underlying: Common Stock · 44,117 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 3, 2027 or (ii) the day before the date of the Issuer's 2027 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 3, 2027 or (ii) the day before the date of the Issuer's 2027 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001225954-26-000002 · wk-form4_1780605550.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 55,727 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On June 4, 2025, the Reporting Person was awarded 55,727 Restricted Stock Units, 100% of which vested on June 2, 2026, or the day before the date of the Issuer's 2026 Annual Meeting of Stockholders.

F2 · derivative.expiration_date: On June 4, 2025, the Reporting Person was awarded 55,727 Restricted Stock Units, 100% of which vested on June 2, 2026, or the day before the date of the Issuer's 2026 Annual Meeting of Stockholders.

SEC source: 0001225954-26-000002 · wk-form4_1780605550.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 329,721

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001635282-25-000173 · wk-form4_1749166967.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,727

Underlying: Common Stock · 55,727 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 4, 2026 or (ii) the day before the date of the Issuer's 2026 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 4, 2026 or (ii) the day before the date of the Issuer's 2026 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001635282-25-000173 · wk-form4_1749166967.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 65,335 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On June 6, 2024, the Reporting Person was awarded 65,335 Restricted Stock Units, 100% of which vested on June 3, 2025, or the day before the date of the Issuer's 2025 Annual Meeting of Stockholders.

F2 · derivative.expiration_date: On June 6, 2024, the Reporting Person was awarded 65,335 Restricted Stock Units, 100% of which vested on June 3, 2025, or the day before the date of the Issuer's 2025 Annual Meeting of Stockholders.

SEC source: 0001635282-25-000173 · wk-form4_1749166967.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 273,994

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: 0001635282-24-000134 · wk-form4_1717792840.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,335

Underlying: Common Stock · 65,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 6, 2025 or (ii) the day before the date of the Issuer's 2025 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 6, 2025 or (ii) the day before the date of the Issuer's 2025 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001635282-24-000134 · wk-form4_1717792840.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 40,178 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On June 7, 2023, the Reporting Person was awarded 40,178 Restricted Stock Units, 100% of which vested on June 5, 2024, or the day before the date of the Issuer's 2024 Annual Meeting of Stockholders.

F2 · derivative.expiration_date: On June 7, 2023, the Reporting Person was awarded 40,178 Restricted Stock Units, 100% of which vested on June 5, 2024, or the day before the date of the Issuer's 2024 Annual Meeting of Stockholders.

SEC source: 0001635282-24-000134 · wk-form4_1717792840.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,659

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: 0001288847-24-000079 · wk-form4_1715891928.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,556

SEC source: 0001635282-23-000149 · wk-form4_1686263703.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,178

Underlying: Common Stock · 40,178 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 7, 2024 or (ii) the day before the date of the Issuer's 2024 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 7, 2024 or (ii) the day before the date of the Issuer's 2024 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001635282-23-000149 · wk-form4_1686263703.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 45,918 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On March 28, 2023, the Reporting Person was awarded 45,918 Restricted Stock Units, 100% of which vested on June 6, 2023, or the day before the date of the Issuer's 2023 Annual Meeting of Stockholders.

F2 · derivative.expiration_date: On March 28, 2023, the Reporting Person was awarded 45,918 Restricted Stock Units, 100% of which vested on June 6, 2023, or the day before the date of the Issuer's 2023 Annual Meeting of Stockholders.

SEC source: 0001635282-23-000149 · wk-form4_1686263703.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 168,481

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: 0001288847-23-000092 · wf-form4_168444260836934.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,801

SEC source: 0001635282-23-000085 · wk-form4a_1680208698.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,918

Underlying: Common Stock · 45,918 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · date: On June 2, 2022, the Reporting Person filed a Form 4 reporting an award of 27,522 Restricted Stock Units effective as of June 1, 2022. Due to Issuer administrative error, the award was not processed. In accordance with the Issuer's Non-Employee Director Compensation Policy, a copy of which is filed as Exhibit 10.9 to the Issuer's Annual Report on Form 10-K for the year ended December 31, 2022, the Reporting Person is entitled to receive an award of Restricted Stock Units (RSUs) with a grant date value of $180,000. This award was processed effective as of March 28, 2023, resulting in the issuance of 45,918 RSUs to the Reporting Person.

F2 · shares: On June 2, 2022, the Reporting Person filed a Form 4 reporting an award of 27,522 Restricted Stock Units effective as of June 1, 2022. Due to Issuer administrative error, the award was not processed. In accordance with the Issuer's Non-Employee Director Compensation Policy, a copy of which is filed as Exhibit 10.9 to the Issuer's Annual Report on Form 10-K for the year ended December 31, 2022, the Reporting Person is entitled to receive an award of Restricted Stock Units (RSUs) with a grant date value of $180,000. This award was processed effective as of March 28, 2023, resulting in the issuance of 45,918 RSUs to the Reporting Person.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) the one year anniversary of the grant date or (ii) the day prior to the Issuer's next Annual Meeting of Stockholders occurring after the grant date (currently, the Issuer's 2023 Annual Meeting of Stockholders), contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) the one year anniversary of the grant date or (ii) the day prior to the Issuer's next Annual Meeting of Stockholders occurring after the grant date (currently, the Issuer's 2023 Annual Meeting of Stockholders), contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F2 · derivative.underlying_shares: On June 2, 2022, the Reporting Person filed a Form 4 reporting an award of 27,522 Restricted Stock Units effective as of June 1, 2022. Due to Issuer administrative error, the award was not processed. In accordance with the Issuer's Non-Employee Director Compensation Policy, a copy of which is filed as Exhibit 10.9 to the Issuer's Annual Report on Form 10-K for the year ended December 31, 2022, the Reporting Person is entitled to receive an award of Restricted Stock Units (RSUs) with a grant date value of $180,000. This award was processed effective as of March 28, 2023, resulting in the issuance of 45,918 RSUs to the Reporting Person.

F2 · balance_after: On June 2, 2022, the Reporting Person filed a Form 4 reporting an award of 27,522 Restricted Stock Units effective as of June 1, 2022. Due to Issuer administrative error, the award was not processed. In accordance with the Issuer's Non-Employee Director Compensation Policy, a copy of which is filed as Exhibit 10.9 to the Issuer's Annual Report on Form 10-K for the year ended December 31, 2022, the Reporting Person is entitled to receive an award of Restricted Stock Units (RSUs) with a grant date value of $180,000. This award was processed effective as of March 28, 2023, resulting in the issuance of 45,918 RSUs to the Reporting Person.

SEC source: 0001288847-23-000002 · wf-form4_167355948845133.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 28,597

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 11, 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 $71.04 to $71.23, 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: 0001288847-23-000002 · wf-form4_167355948845133.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 29,222

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 11, 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 $70.01 to $71.00, 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: 0001288847-22-000126 · wf-form4_167097414918536.xml · nonDerivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 33,597

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 11, 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 $68.96 to $69.53, 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: 0001288847-22-000126 · wf-form4_167097414918536.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 35,888

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 11, 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 $67.94 to $68.91, 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: 0001288847-22-000126 · wf-form4_167097414918536.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 38,197

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 11, 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 $66.25 to $66.96, 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: 0001288847-22-000114 · wf-form4_166846201035642.xml · nonDerivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 38,597

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 11, 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 $63.94 to $64.66, 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: 0001288847-22-000114 · wf-form4_166846201035642.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 39,197

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 11, 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 $62.80 to $63.72, 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: 0001288847-22-000114 · wf-form4_166846201035642.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 42,397

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 11, 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 $61.70 to $62.67, 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: 0001635282-22-000119 · wf-form4_165421472957915.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,522

Underlying: Common Stock · 27,522 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 1, 2023 or (ii) the day before the date of the Issuer's 2023 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 1, 2023 or (ii) the day before the date of the Issuer's 2023 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001635282-22-000119 · wf-form4_165421472957915.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 27,565 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On June 2, 2021, the Reporting Person was awarded 27,565 Restricted Stock Units, 100% of which vested on May 31, 2022, or the day before the date of the Issuer's 2022 Annual Meeting of Stockholders.

F2 · derivative.expiration_date: On June 2, 2021, the Reporting Person was awarded 27,565 Restricted Stock Units, 100% of which vested on May 31, 2022, or the day before the date of the Issuer's 2022 Annual Meeting of Stockholders.

SEC source: 0001635282-22-000119 · wf-form4_165421472957915.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,563

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: 0001288847-22-000056 · wf-form4_165308163783467.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,150

SEC source: 0001638599-21-000503 · doc4_7247.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,565

Underlying: Common Stock · 27,565 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 2, 2022 or (ii) the date of the Issuer's 2022 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 2, 2022 or (ii) the date of the Issuer's 2022 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001638599-21-000503 · doc4_7247.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,375 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On January 4, 2021, the Reporting Person was granted 16,375 Restricted Stock Units, 100% of which vested on June 2, 2021.

F2 · derivative.expiration_date: On January 4, 2021, the Reporting Person was granted 16,375 Restricted Stock Units, 100% of which vested on June 2, 2021.

SEC source: 0001638599-21-000503 · doc4_7247.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,998

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 · price: On January 4, 2021, the Reporting Person was granted 16,375 Restricted Stock Units, 100% of which vested on June 2, 2021.

SEC source: 0001288847-21-000077 · wf-form4_162094339680853.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,018

SEC source: 0001638599-21-000024 · doc4_6984.xml · derivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,375

Underlying: Common Stock · 16,375 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F3 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on June 2, 2021, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F3 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on June 2, 2021, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001638599-21-000024 · doc4_6984.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 38,167 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On June 3, 2020, the Reporting Person was granted 38,167 Restricted Stock Units, 100% of which vested on January 2, 2021.

F2 · derivative.expiration_date: On June 3, 2020, the Reporting Person was granted 38,167 Restricted Stock Units, 100% of which vested on January 2, 2021.

SEC source: 0001638599-21-000024 · doc4_6984.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,623

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 · shares: On June 3, 2020, the Reporting Person was granted 38,167 Restricted Stock Units, 100% of which vested on January 2, 2021.

F1 · price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

SEC source: 0001288847-20-000131 · wf-form4_159779079654280.xml · nonDerivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 40,579

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 May 7, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.03 to $121.49 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: 0001288847-20-000131 · wf-form4_159779079654280.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 49,179

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 May 7, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.02 to $121.01 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: 0001288847-20-000131 · wf-form4_159779079654280.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 57,788

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 May 7, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.13 to $121.09 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 6

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 61,088

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 May 7, 2020.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.08 to $123.12 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 5

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 61,788

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 May 7, 2020.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.03 to $121.98 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 4

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 62,188

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 May 7, 2020.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.88 to $120.87, 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 3

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 66,479

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 May 7, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.97 to $117.85, 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 67,584

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 May 7, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.82 to $116.76, 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: 0001288847-20-000130 · wf-form4_159727643016766.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 69,050

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 May 7, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.79 to $115.73, 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: 0001638599-20-000575 · doc4_6741.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,167

Underlying: Common Stock · 38,167 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: 100% of the Restricted Stock Units awarded will vest on January 2, 2021, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

F2 · derivative.expiration_date: 100% of the Restricted Stock Units awarded will vest on January 2, 2021, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.

SEC source: 0001288847-20-000076 · wf-form4_159000669821803.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,784

SEC source: 0001638599-20-000045 · doc4_6446.xml · derivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 27,829 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

F2 · derivative.exercise_date: On January 2 ,2019, the reporting person was granted 27,829 Restricted Stock Units which vested 100% on January 2, 2020.

F2 · derivative.expiration_date: On January 2 ,2019, the reporting person was granted 27,829 Restricted Stock Units which vested 100% on January 2, 2020.

SEC source: 0001638599-20-000045 · doc4_6446.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,456

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

SEC source: 0001288847-19-000150 · wf-form4_157687934781661.xml · nonDerivative · entry 2

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 67,172

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 September 11, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.47 to $66.61, 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: 0001288847-19-000150 · wf-form4_157687934781661.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 41,773

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 September 11, 2019.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.42 to $66.37, 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: 0001288847-19-000076 · wf-form4_155925462540624.xml · nonDerivative · entry 1

ACOSTA JACK L · CIK 0001225954 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,906