Five9 president sells 13,320 shares in plan trade

Five9’s president reported pre-planned stock sales totaling 13,320 shares, largely tied to tax withholding on vested RSUs.

Rhea-AI Filing Summary

Five9, Inc. (FIVN) reported that President Andy Dignan sold a total of 13,320 shares of common stock in open-market transactions on September 4 and September 8, 2026. The filing states these sales were effected under a Rule 10b5-1 trading plan adopted on September 2, 2025, and that the September 4 sales were made to cover taxes upon the vesting of restricted stock units, including pursuant to Five9’s previously established sell-to-cover withholding policy. Several sale prices are reported as weighted average prices across multiple trades within specified intraday price ranges.

Insider Trade Summary 10b5-1

Net Seller: 13,320 shares

Net Sell 4 txns

Insider Dignan Andy

Role President

Sold 13,320 shs ($439K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F7	2,746	$31.57	$87K
Sale	Common Stock F1, F2, F3	2,900	$33.00	$96K
Sale	Common Stock F1, F2, F4	4,379	$33.51	$147K
Sale	Common Stock F5, F6	3,295	$33.45	$110K

Holdings After Transaction: Common Stock — 244,600 shares (Direct)

Footnotes (7)

1. 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 2, 2025.
2. F2. The reported sales were to cover taxes upon the vesting of restricted stock units.
3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.35 to $33.34, 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.
4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.36 to $33.75, 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.
5. F5. 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.
6. F6. 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.
7. F7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.12 to $32.01, 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.

Key Figures

Total shares sold: 13,320 shares Sale on September 8, 2026: 2,746 shares at $31.57 per share Sale block on September 4, 2026: 2,900 shares at $33.00 per share +4 more

7 metrics

Total shares sold 13,320 shares Aggregate of all reported sales by Andy Dignan in this Form 4

Sale on September 8, 2026 2,746 shares at $31.57 per share Open-market sale of Five9 common stock by Andy Dignan

Sale block on September 4, 2026 2,900 shares at $33.00 per share One of three reported September 4, 2026 sales

Second sale block on September 4, 2026 4,379 shares at $33.51 per share Weighted average price across multiple trades from $33.36 to $33.75

Third sale block on September 4, 2026 3,295 shares at $33.45 per share Weighted average price applied under the company’s RSU tax-withholding policy

Rule 10b5-1 trading plan adoption date September 2, 2025 Plan under which the reported sales were effected

Weighted average price range example $32.35–$33.34 per share Price range for one group of September 4, 2026 sales

Key Terms

Rule 10b5-1 trading plan, restricted stock units, sell to cover withholding policy, weighted average price

4 terms

Rule 10b5-1 trading plan regulatory

"sales were effected pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

sell to cover withholding policy financial

"effected in accordance with Five9, Inc.s previously established sell to cover withholding policy"

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

FAQ

What insider transaction did Five9 (FIVN) report for President Andy Dignan?

The report shows that President Andy Dignan sold 13,320 shares of Five9 common stock on September 4 and 8, 2026 in open-market transactions, according to the Form 4 insider filing.

Were Andy Dignan’s Five9 (FIVN) stock sales made under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by Andy Dignan on September 2, 2025, indicating they followed a pre-established trading schedule.

How many Five9 (FIVN) shares did Andy Dignan sell on September 8, 2026 and at what price?

On September 8, 2026, Andy Dignan sold 2,746 shares of Five9 common stock at a reported price of $31.57 per share, according to the Form 4.

What Five9 (FIVN) share sales did Andy Dignan report on September 4, 2026?

On September 4, 2026, he reported three sale blocks: 2,900 shares at $33.00, 4,379 shares at $33.51, and 3,295 shares at $33.45 per share, all in Five9 common stock.

Why does the Form 4 say some Five9 (FIVN) sales were made to cover taxes?

Footnotes explain that the September 4, 2026 sales were made to cover taxes upon the vesting of restricted stock units, including under Five9’s previously established sell-to-cover withholding policy for RSU vesting.

What does it mean that Five9 (FIVN) sale prices were reported as weighted averages?

For some transactions, the Form 4 lists a weighted average price because the shares were sold in multiple trades within stated ranges, such as $32.35–$33.34. The insider offers to provide details of each individual sale price on request.

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Available on EDGAR 09/09/2026 - 04:14 PM Accepted by SEC EDGAR 09/09/2026 - 04:14 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dignan Andy

(Last) (First) (Middle)

C/O FIVE9, INC.

3001 BISHOP DR., STE. #350

(Street)

SAN RAMON CALIFORNIA 94583

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Five9, Inc. [ FIVN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/04/2026		S		2,900(1)(2)	D	$33(3)	255,020	D
Common Stock	09/04/2026		S		4,379(1)(2)	D	$33.51(4)	250,641	D
Common Stock	09/04/2026		S		3,295(5)	D	$33.45(6)	247,346	D
Common Stock	09/08/2026		S		2,746(1)	D	$31.57(7)	244,600	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 2, 2025.

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

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.35 to $33.34, 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.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.36 to $33.75, 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.

5. 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.

6. 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.

7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.12 to $32.01, 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.

Remarks:

	/s/ Tiffany Meriweather, Attorney in Fact	09/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)