[144] FIVE9, INC. SEC Filing

Rhea-AI Filing Summary

Form 144 Notice for Five9, Inc. (FIVN) reports a proposed sale of 4,212 common shares acquired as restricted stock units on 09/03/2025. The filing lists Morgan Stanley Smith Barney LLC as the broker and an aggregate market value of $111,533.76 for the proposed sale, with an approximate sale date of 09/04/2025 on NASDAQ. The filing also discloses three prior 10b5-1 sales by Andrew Dignan during the past three months: 700 shares on 08/01/2025 for $18,312.00, 700 shares on 07/01/2025 for $18,508.00, and 700 shares on 06/05/2025 for $20,461.00. The filer affirms they are unaware of undisclosed material adverse information.

Positive

• Clear disclosure of a proposed insider sale specifying shares, acquisition date, and broker
• Prior 10b5-1 sales are itemized, providing transparency about recent insider transactions

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider sale notice showing a planned disposition of newly vested RSUs and recent 10b5-1 sales; no financial results disclosed.

The Form 144 documents a proposed sale of 4,212 common shares tied to restricted stock units acquired on 09/03/2025, with Morgan Stanley Smith Barney LLC noted as broker and an aggregate market value of $111,533.76. Prior 10b5-1 sales by Andrew Dignan total 2,100 shares across June–August 2025, generating gross proceeds reported per transaction. As a securities filing, this provides transparency on insider liquidity but contains no operational or earnings information to affect company valuation directly.

Corporate Compliance Officer

TL;DR: Filing is a standard Rule 144 disclosure; it documents compliance with reporting requirements and includes 10b5-1 sales history.

The notice identifies the nature and timing of the securities (RSUs acquired and proposed sale the next day) and lists prior 10b5-1 executions by the same individual. The signature/attestation language affirms absence of undisclosed material adverse information as of the plan/instruction date. The form meets procedural disclosure expectations but does not provide the plan adoption date or additional contextual details beyond transaction facts.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	4212	111533.76	77262690	09/04/2025	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	09/03/2025	Restricted Stock Units	Issuer			4212	09/03/2025	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	08/01/2025	700	18312.00
10b5-1 Sales for ANDREW DIGNAN 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	07/01/2025	700	18508.00
10b5-1 Sales for ANDREW DIGNAN 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	06/05/2025	700	20461.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 for Five9 (FIVN) report?

The filing reports a proposed sale of 4,212 common shares (RSUs acquired 09/03/2025) with an aggregate market value of $111,533.76 and an approximate sale date of 09/04/2025 on NASDAQ.

Who is the broker handling the proposed sale in the FIVN Form 144?

The broker listed is Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza, 8th Floor, New York, NY 10004.

What prior insider sales are disclosed in this filing for FIVN?

Three 10b5-1 sales by Andrew Dignan are disclosed: 700 shares on 06/05/2025 for $20,461.00, 700 shares on 07/01/2025 for $18,508.00, and 700 shares on 08/01/2025 for $18,312.00.

When were the shares to be sold acquired according to the filing?

The 4,212 shares were acquired as restricted stock units on 09/03/2025.

Does the Form 144 include any statements about undisclosed material information?

Yes. The filer signs an attestation representing they do not know any material adverse information about the issuer that has not been publicly disclosed.