Morgan Stanley files Form 144 to sell 3,369 FIVN shares

Morgan Stanley Smith Barney LLC submitted a Form 144 notice to sell common shares for FIVN.

Accepted by SEC EDGAR 03/05/2026 - 04:31 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice to sell common shares for FIVN. The filing lists 3,369 common shares associated with Restricted Stock Units dated 03/04/2024. It also records prior sales of 4,924 common shares on 03/04/2026 linked to a 10b5-1 plan for Andrew Dignan.

Insights

Securities Compliance Analyst

Notice filed under Rule 144 lists RSU-related sale of 3,369 common shares.

The filing names Morgan Stanley Smith Barney LLC as the filer and identifies 3,369 common shares tied to Restricted Stock Units dated 03/04/2024. It separately reports prior 3‑month sales of 4,924 shares on 03/04/2026.

The excerpt also references 10b5-1 sales for Andrew Dignan. The filing lists quantities and dates; any cash‑flow recipients or sale mechanics are not detailed in the provided excerpt.

FAQ

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

What does the Form 144 for FIVN report?

The Form 144 reports a proposed sale of 3,369 common shares tied to Restricted Stock Units dated 03/04/2024. The filing also lists prior 3‑month sales of 4,924 shares on 03/04/2026, and references a 10b5‑1 arrangement.

Who filed the Form 144 related to FIVN shares?

Morgan Stanley Smith Barney LLC is listed as the filer on the Form 144. The filing also references 10b5-1 sales for Andrew Dignan with an address in San Ramon, CA.

How many shares were sold in the past three months per the filing?

The filing shows 4,924 common shares were sold on 03/04/2026. That sale is recorded separately from the 3,369 shares now listed as the subject of this notice.

Are the shares in the filing ordinary shares or other instruments?

The Form 144 lists the securities as Common shares tied to Restricted Stock Units with a grant date of 03/04/2024. No other instrument types are identified in the excerpt.

Does the filing state who receives proceeds from the sale?

The provided excerpt does not specify who will receive sale proceeds. The filing names the filer and quantity details but does not detail proceeds recipients or use of proceeds.

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

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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	3369	60271.41	76495680	03/05/2026	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	03/04/2024	Restricted Stock Units	Issuer			3369	03/04/2024	N/A

* 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
10b5-1 Sales for ANDREW DIGNAN 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	03/04/2026	4924	87106.54

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 03/04/2024 through 03/03/2026
Date of Notice	03/05/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/02/2025
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	/s/ Andrew Dignan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)