FIVN Form 144 Notice: Insider Plans Sale of 10,860 RSU Shares

Rhea-AI Filing Summary

Five9, Inc. (FIVN) filing a Form 144 notifies the proposed sale of 10,860 shares of common stock to be effected through Morgan Stanley Smith Barney LLC on 09/04/2025, with an aggregate market value listed at $287,572.80. The shares were acquired the prior day, 09/03/2025, as Restricted Stock Units granted by the issuer and payment/consideration is listed as N/A for the acquisition.

The filing also discloses related recent sales: a Rule 10b5-1 sale on 08/13/2025 of 7,043 shares for gross proceeds of $181,746.73. The notice includes the standard representation that the seller does not possess undisclosed material adverse information and references reliance on any 10b5-1 plan where applicable.

Positive

• Disclosure of acquisition type as Restricted Stock Units provides clarity on the source of shares.
• Planned sale date and broker (Morgan Stanley Smith Barney LLC) are specified, improving transparency.
• Prior 10b5-1 sale on 08/13/2025 is disclosed, showing recent insider transaction history.

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider sale of recently vested RSUs disclosed under Rule 144; prior 10b5-1 sale also reported.

The filing shows a proposed immediate disposition of 10,860 common shares through Morgan Stanley, acquired as restricted stock units on 09/03/2025. Disclosure of both the acquisition type and the planned sale date provides transparency on timing and source of the shares. The prior 10b5-1 sale on 08/13/2025 (7,043 shares) is included, indicating recent insider liquidity activity. From a trading-impact perspective this appears to be routine insider monetization rather than a corporate-action or financing event.

Corporate Governance Expert

TL;DR: Documentation aligns with Rule 144 requirements and includes 10b5-1 disclosure; no governance red flags in the notice itself.

The form identifies the securities as RSU-derived common shares and lists the broker and approximate sale details, satisfying standard Form 144 disclosure elements. The signer asserts no undisclosed material adverse information and references plan adoption/instruction dates when relying on 10b5-1 protections. The filing is procedural and does not, by itself, indicate governance concerns; it documents insider compliance with required notice obligations.

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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
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	10860	287572.80	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			10860	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 PANOS KOZANIAN 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	08/13/2025	7043	181746.73

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 shares is Five9 insider planning to sell under Form 144 (FIVN)?

The notice lists a proposed sale of 10,860 shares of common stock through Morgan Stanley Smith Barney LLC on 09/04/2025.

How were the shares to be sold to be acquired?

The shares were acquired on 09/03/2025 as Restricted Stock Units granted by the issuer.

Has the filer sold any Five9 shares recently?

Yes. The filing discloses a Rule 10b5-1 sale on 08/13/2025 of 7,043 shares for gross proceeds of $181,746.73.

What is the aggregate market value of the shares listed in the Form 144?

The aggregate market value is reported as $287,572.80 for the 10,860 shares.

Which exchange is the sale planned on?

The filing lists NASDAQ as the securities exchange for the proposed sale.