FIVN Form 144: Affiliate resale notice reports 1,756-share sale

Morgan Stanley Smith Barney LLC submitted a Form 144 notice related to shares of FIVN held by an affiliate.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice related to shares of FIVN held by an affiliate. The filing lists Restricted Stock Units with an entry of 12,307 dated 06/03/2026 and discloses a prior 10b5-1 sale of 1,756 common shares on 03/05/2026 for $31,467.52.

The filing identifies the broker-dealer address and notes the securities are to be sold under affiliate procedures; timing and detailed distribution methods are not specified in the excerpt.

Insights

Corporate Governance Analyst

Routine affiliate resale notice with a prior 10b5-1 sale recorded.

The Form 144 excerpt lists 12,307 Restricted Stock Units dated 06/03/2026 and records a prior 10b5-1 sale of 1,756 shares on 03/05/2026 for $31,467.52. These items are typical compliance disclosures for affiliates coordinating sales through broker-dealers.

Material impact depends on future sale execution by the affiliate; cash-flow treatment and planned methods of disposition are not detailed in the provided text.

Key Figures

Restricted Stock Units: 12,307 Shares sold (three months): 1,756 shares Proceeds recorded: $31,467.52 +1 more

4 metrics

Restricted Stock Units 12,307 listed with date 06/03/2026

Shares sold (three months) 1,756 shares 10b5-1 sale on 03/05/2026

Proceeds recorded $31,467.52 proceeds from 10b5-1 sale on 03/05/2026

Broker-dealer address 1 New York Plaza, 8th Floor Morgan Stanley Smith Barney LLC listed

Key Terms

Form 144, 10b5-1, Restricted Stock Units

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 regulatory

"10b5-1 Sales for BRYAN LEE"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | 12307 | 06/03/2026"

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.

FAQ

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

What does the FIVN Form 144 show about recent insider sales?

The filing notes a prior 10b5-1 sale of 1,756 shares on 03/05/2026, recorded at $31,467.52. It presents this sale as a completed transaction in the three-month lookback period.

How many Restricted Stock Units are listed in the FIVN excerpt?

The excerpt lists 12,307 Restricted Stock Units with a date of 06/03/2026. The entry appears under securities to be sold but the filing excerpt does not detail disposition mechanics.

Who is the broker-dealer handling the potential sales in this FIVN filing?

The filing identifies Morgan Stanley Smith Barney LLC with address 1 New York Plaza, 8th Floor, New York, NY 10004 as the broker-dealer associated with the notice.

Does the Form 144 excerpt state proceeds recipient or use of proceeds for FIVN sales?

The excerpt does not specify proceeds recipient or use of proceeds. It lists transaction amounts such as $31,467.52 for a prior sale but does not allocate proceeds.

Is the recent sale described as part of a 10b5-1 plan in the FIVN filing?

Yes, the filing records a 10b5-1 sale for Bryan Lee in the three-month trading history, indicating that at least one prior transaction was executed under a trading plan.

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

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Accepted by SEC EDGAR 06/04/2026 - 04:33 PM 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	0002063775
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	BRYAN LEE
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	12307	294752.65	76563988	06/04/2026	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	06/03/2026	Restricted Stock Units	Issuer			12307	06/03/2026	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 BRYAN LEE 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	03/05/2026	1756	31467.52

144: Remarks and Signature

Remarks
Date of Notice	06/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/03/2025
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/ Bryan Lee
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)