Bryan M. Lee - 04 Jun 2026 Form 4 Insider Report for Five9, Inc. (FIVN)

Reporting relationship: Chief Financial Officer
Issuer ticker: FIVN
Reported as of: 04 Jun 2026
Net transaction value: -$449,059
SEC form: 4
Accepted by SEC: 08 Jun 2026, 17:25:08 UTC
Prior SEC filing: 06 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Tiffany Meriweather, Attorney in Fact

Key filing fact

Bryan M. Lee filed Form 4 for Five9, Inc. (FIVN) on 08 Jun 2026.

Key facts

This page summarizes Bryan M. Lee's Form 4 filing for Five9, Inc. (FIVN).
5 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 08 Jun 2026, 17:25.

Change

Previous filing in this sequence was filed on 06 Mar 2026.
Current net transaction value: -$449,059.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002063775 Primary reporting owner

Lee Bryan M

Relationship: Chief Financial Officer
Address: C/O FIVE9, INC., 3001 BISHOP DR. SUITE #350, SAN RAMON
Signature: /s/ Tiffany Meriweather, Attorney in Fact
Signature date: 08 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FIVN transaction

Common Stock

Sale

Transaction value: $115,823
Shares: -4,794
Change %: -1.5%
Price: $24.16
Shares after: 323,288
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

FIVN transaction

Common Stock

Sale

Transaction value: $153,469
Shares: -6,107
Change %: -1.9%
Price: $25.13
Shares after: 317,181
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F4

FIVN transaction

Common Stock

Sale

Transaction value: $36,120
Shares: -1,406
Change %: -0.44%
Price: $25.69
Shares after: 315,775
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F5

FIVN transaction

Common Stock

Sale

Transaction value: $107,006
Shares: -4,313
Change %: -1.4%
Price: $24.81
Shares after: 311,462
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F6, F7

FIVN transaction

Common Stock

Sale

Transaction value: $36,642
Shares: -1,511
Change %: -0.49%
Price: $24.25
Shares after: 309,951
Date: 05 Jun 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 7 footnotes

Footnote F1

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 3, 2025.

Footnote F2

The reported sales were to cover taxes upon the vesting of restricted stock units.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.60 to $24.60, 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.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.62 to $25.62, 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.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.64 to $25.83, 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.

Footnote F6

The reported sales were to cover taxes upon the vesting of restricted stock units. The sales reported in this Form 4 were effected in accordance with Five9, Inc.s previously established sell to cover withholding policy, the Corporations Policy.

Footnote F7

The price reported in Column 4 is a weighted average price applied to the transaction by the broker under the Corporations Policy for sales to cover taxes upon vesting of restricted stock units for all individuals, including the reporting person subject to the Corporations Policy on the date such sales occurred. 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.