[Form 4] FIVE9, INC. Insider Trading Activity

Rhea-AI Filing Summary

Five9 Chief Revenue Officer Matthew E. Tuckness reported a Form 4 disclosing a non-derivative transaction in the issuer's common stock on 08/11/2025. The filing lists 111,731 shares under an acquisition entry and shows 183,654 shares as beneficially owned following the reported transaction; the price column shows $0. The form was signed by an attorney-in-fact on 08/13/2025.

Insights

Financial Analyst

TL;DR: Insider filing records a non-derivative common stock entry with listed share counts, but materiality cannot be determined from this form alone.

The Form 4 for FIVN identifies Matthew E. Tuckness as the reporting person and shows a common stock transaction dated 08/11/2025. The filing presents 111,731 shares under an acquisition line and reports 183,654 shares as beneficially owned after the transaction; the table shows a $0 price. No derivative securities are recorded in Table II. Without company-wide share counts, market values, or explicit transaction type details beyond the table entries, the capitalization and financial impact cannot be quantified from this filing alone.

Corporate Governance Expert

TL;DR: Officer-level insider reported increased common stock holdings; the filing provides limited context for governance or control implications.

The report lists Matthew E. Tuckness with the role of Chief Revenue Officer and indicates a non-derivative common stock entry dated 08/11/2025. The filing shows 111,731 shares on an acquisition line and 183,654 shares as beneficially owned following the reported transaction, with a $0 price reported in the table. The document was signed by an attorney-in-fact on 08/13/2025. Because the form does not include total outstanding shares, percentage ownership, or explanatory remarks, implications for control, dilution, or related-party arrangements cannot be assessed from this filing alone.

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).

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^*

Tuckness Matthew E.

(Last) (First) (Middle)

C/O FIVE9, INC.

3001 BISHOP DRIVE, SUITE 350

(Street)

SAN RAMON CA 94583

(City) (State) (Zip)

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)
	Chief Revenue Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2025

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

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

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

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	08/11/2025		A		111,731	A	$0	183,654	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:

Remarks:

	/s/ Tiffany Meriweather, Attorney in Fact	08/13/2025
	** 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.

FAQ

What transaction did Matthew E. Tuckness report on Form 4 for FIVN?

The Form 4 shows a non-derivative common stock entry dated 08/11/2025, listing 111,731 shares on an acquisition line and 183,654 shares as beneficially owned following the reported transaction; the table shows a $0 price.

What is Matthew E. Tuckness's role at Five9 as shown on the filing?

The filing identifies Matthew E. Tuckness as an Officer with the title Chief Revenue Officer.

Were any derivative securities reported in this Form 4 for FIVN?

No. Table II (derivative securities) is empty and the filing only shows entries in Table I for non-derivative common stock.

Was this Form 4 filed jointly or by a single reporting person?

The form indicates a single reporting person filed the Form 4 (the box for 'Form filed by One Reporting Person' is checked).

Who signed the Form 4 and when?

The signature block shows /s/ Tiffany Meriweather, Attorney in Fact with a signature date of 08/13/2025.