Five9 officer plans tax sale of 3,201 shares

Five9 officer Andrew Dignan filed a Rule 144 notice for 3,201 shares, described as an issuer-mandated sale to cover RSU tax withholding.

Rhea-AI Filing Summary

Five9, Inc. (FIVN) received a Rule 144 notice indicating that officer Andrew Dignan has arranged the potential sale of 3,201 shares of common stock through Morgan Stanley Smith Barney LLC. The filing states this is an issuer mandated sale to cover tax withholding obligations from vesting Restricted Stock Units and is not a discretionary trade.

Key Figures

Planned Rule 144 sale: 3,201 shares of common stock Recent sale August 28, 2026: 17,767 shares for $622,378.01 Recent sale June 4, 2026: 8,203 shares for $203,108.58 +3 more

6 metrics

Planned Rule 144 sale 3,201 shares of common stock Shares to be sold under the new Rule 144 notice

Recent sale August 28, 2026 17,767 shares for $622,378.01 Common stock sold by Andrew Dignan during the past three months

Recent sale June 4, 2026 8,203 shares for $203,108.58 Common stock sold by Andrew Dignan during the past three months

Recent sale June 5, 2026 3,073 shares for $74,520.25 Common stock sold by Andrew Dignan during the past three months

Broker share quantity line 3,201 shares Common shares listed with Morgan Stanley Smith Barney LLC for sale

Issuer phone number 925-201-2000 Contact phone number for Five9, Inc.

Key Terms

Rule 144, Restricted Stock Units, tax withholding obligations, issuer mandated sale

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"in connection with the vesting and settlement 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.

tax withholding obligations financial

"to cover tax withholding obligations in connection with the vesting"

issuer mandated sale financial

"represents an Issuer mandated sale by the Reporting Person"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the latest Rule 144 filing indicate for Five9, Inc. (FIVN)?

The filing shows officer Andrew Dignan has notified of a potential sale of 3,201 Five9 common shares under Rule 144. The sale is described as issuer mandated to cover tax withholding obligations from RSU vesting, rather than a discretionary trade.

How many Five9 (FIVN) shares are covered by the new Rule 144 notice?

The notice covers a planned sale of 3,201 shares of Five9 common stock. These shares relate to the vesting and settlement of Restricted Stock Units (RSUs) and are intended to satisfy associated tax withholding obligations.

What recent Five9 (FIVN) share sales has Andrew Dignan reported in the last three months?

In the past three months, Andrew Dignan reported sales of 17,767 shares for $622,378.01 on August 28, 2026, 8,203 shares for $203,108.58 on June 4, 2026, and 3,073 shares for $74,520.25 on June 5, 2026.

Is the planned Five9 (FIVN) share sale by Andrew Dignan discretionary?

No. The remarks explain that the reported sale represents an issuer mandated sale to cover tax withholding obligations from RSU vesting and settlement, and that it does not represent a discretionary trade by Andrew Dignan.

Through which broker will the Five9 (FIVN) Rule 144 shares be sold?

The filing lists Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York, as the broker handling the potential sale of 3,201 shares of Five9 common stock under Rule 144.

What security type is involved in Andrew Dignan’s Five9 (FIVN) Rule 144 notice?

The notice involves common stock of Five9, Inc., with the shares tied to the vesting and settlement of Restricted Stock Units (RSUs), for which part of the shares are being sold to satisfy tax withholding obligations.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/03/2026 - 05:50 PM EDT Accepted by SEC EDGAR 09/03/2026 - 04:40 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002000932
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Five9, Inc
SEC File Number	001-36383
Address of Issuer	3001 Bishop Drive Suite 350 San Ramon CALIFORNIA 94583
Phone	9252012000
Name of Person for Whose Account the Securities are To Be Sold	Andrew Dignan
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3201	107512.92	74904551	09/04/2026	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/03/2026	RSU	Issuer			3201	09/03/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Andrew Dignan 3001 Bishop Dr. Suite 350 San Ramon CA 94583	Common	08/28/2026	17767	622378.01
Andrew Dignan 3001 Bishop Dr. Suite 350 San Ramon CA 94583	Common	06/04/2026	8203	203108.58
Andrew Dignan 3001 Bishop Dr. Suite 350 San Ramon CA 94583	Common	06/05/2026	3073	74520.25

144: Remarks and Signature

Remarks	The sale reported on this Form 144 represents an Issuer mandated sale by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units, and it does not represent a discretionary trade by the Reporting Person.
Date of Notice	09/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Andrew Dignan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)