[144] FIVE9, INC. SEC Filing

Rhea-AI Filing Summary

Form 144 filing for FIVN (Five9, Inc.) reporting proposed and recent sales of common stock by an individual. The notice shows a proposed sale of 1,835 shares acquired as RSUs on 09/03/2025 with an aggregate market value of $48,333.90, to be sold on 09/04/2025 through Morgan Stanley Smith Barney LLC on Nasdaq. The filing also discloses a prior sale by the same person on 06/04/2025 of 1,798 shares for $50,847.44. The document includes the standard attestation that the seller is not aware of undisclosed material adverse information. Other identifying details about the filer’s relationship to the issuer are not provided in the text.

Positive

• Timely disclosure: Form 144 filed with broker details and required attestation, indicating compliance with Rule 144 reporting obligations.
• Transaction transparency: Provides clear figures for proposed sale (1,835 shares, $48,333.90) and recent sale (1,798 shares, $50,847.44).

Negative

• Limited contextual information: The filing does not specify the filer’s relationship to the issuer or whether a 10b5-1 plan applies, restricting interpretation of intent.

Insights

Securities Analyst

TL;DR: Routine insider sale filing disclosing RSU-derived shares and a recent prior sale; not an earnings or corporate-action event.

This Form 144 documents a proposed sale of 1,835 shares acquired as restricted stock units one day earlier and a prior sale of 1,798 shares in June. The transactions are executed through a major broker on Nasdaq. For investors, this is a disclosure of insider liquidity activity rather than operational or financial performance information. The amounts disclosed ($48k and $50.8k) are modest in absolute terms and appear consistent with personal compensation vesting and subsequent sales rather than a corporate financing or material transaction.

Corporate Governance Expert

TL;DR: Filing meets Rule 144 disclosure requirements; it signals routine insider monetization with required attestation.

The form contains the required representations and broker details and notes the seller's attestation regarding undisclosed material information. The filing does not include the filer’s relationship to the issuer or broader context about any trading plan. From a governance standpoint, timely filing and broker identification are positive compliance indicators; absence of additional context limits assessment of the motive or any plan-based trading defense.

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	1835	48333.9	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	RSU	Issuer			1835	09/03/2025	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
Bryan Lee 3001 Bishop Dr. Suite 350 San Ramon CA 94583	Common	06/04/2025	1798	50847.44

144: Remarks and Signature

Remarks

Date of Notice

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 filed for FIVN disclose?

The filing discloses a proposed sale of 1,835 common shares (acquired as RSUs on 09/03/2025) with an aggregate market value of $48,333.90, to be sold on 09/04/2025 through Morgan Stanley Smith Barney LLC on Nasdaq, and a prior sale on 06/04/2025 of 1,798 shares for $50,847.44.

Who executed the brokered sale in the FIVN Form 144?

The proposed sale is to be executed through Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza, New York, NY on Nasdaq as stated in the filing.

Were the shares being sold in the FIVN filing acquired via compensation?

Yes. The filing states the shares to be sold (1,835) were acquired as RSUs on 09/03/2025.

Does the Form 144 indicate any undisclosed material information about Five9 (FIVN)?

No. By signing the notice the seller represents they do not know of any material adverse information about the issuer that has not been publicly disclosed.

What recent sales by the filer are included in the Form 144?

The filing reports a sale on 06/04/2025 by Bryan Lee of 1,798 common shares for $50,847.44.