Bryan Lee files Form 144 to sell 1,511 shares

Bryan Lee reported a proposed resale of Common Stock via Form 144 and 10b5-1 sales.

Rhea-AI Filing Summary

Bryan Lee reported a proposed resale of Common Stock via Form 144 and 10b5-1 sales. The notice lists 1,511 Restricted Stock Units dated 06/03/2026 and records recent 10b5-1 sales of 12,307 shares on 06/04/2026 for $305,394.51 and 4,313 shares on 06/03/2026 for $107,005.53. The broker on file is Morgan Stanley Smith Barney LLC.

Insights

Equity Compensation Specialist

Form 144 discloses a planned resale tied to restricted stock units and recent 10b5-1 activity.

The filing lists 1,511 Restricted Stock Units dated 06/03/2026 and documents two 10b5-1 sales totaling $412,399.04 across 06/03/2026 and 06/04/2026. These entries reflect reported transactions and a broker of record, Morgan Stanley Smith Barney LLC.

Timing and execution details beyond the dates shown are not provided here; subsequent filings may show final settlement or additional sales.

Key Figures

Restricted Stock Units to be sold: 1,511 shares 10b5-1 sale on 06/04/2026: 12,307 shares 10b5-1 sale on 06/03/2026: 4,313 shares +1 more

4 metrics

Restricted Stock Units to be sold 1,511 shares Restricted Stock Units dated <date>06/03/2026</date>

10b5-1 sale on 06/04/2026 12,307 shares Proceeds <money>$305,394.51</money>

10b5-1 sale on 06/03/2026 4,313 shares Proceeds <money>$107,005.53</money>

Combined proceeds shown $412,399.04 Sum of the two recorded 10b5-1 sale proceeds in the excerpt

Key Terms

10b5-1 Sales, Restricted Stock Units, Form 144

3 terms

10b5-1 Sales regulatory

"10b5-1 Sales for BRYAN LEE 3001 Bishop Drive"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Restricted Stock Units financial

"Securities To Be Sold ... Restricted Stock Units | Issuer"

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.

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

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.

FAQ

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

What did the Form 144 filed for FIVN disclose?

The Form 144 disclosed a proposed resale of Common Stock tied to 1,511 Restricted Stock Units dated 06/03/2026 and recent 10b5-1 sales recorded on 06/03/2026 and 06/04/2026.

How many shares did Bryan Lee sell in the past three months for FIVN?

The filing reports 10b5-1 sales of 12,307 shares on 06/04/2026 and 4,313 shares on 06/03/2026, with proceeds of $305,394.51 and $107,005.53, respectively.

Who is the broker of record listed on the Form 144 for FIVN?

The broker of record is listed as Morgan Stanley Smith Barney LLC, with an address at 1 New York Plaza, 8th Floor, New York, NY 10004, as shown in the filing excerpt.

Are the shares to be sold for FIVN restricted or unrestricted?

The securities described for proposed resale are identified as Restricted Stock Units dated 06/03/2026, with a listed quantity of 1,511 units in the excerpt.

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

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Accepted by SEC EDGAR 06/05/2026 - 04:31 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	1511	36959.06	76563988	06/05/2026	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	06/03/2026	Restricted Stock Units	Issuer			1511	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	06/04/2026	12307	305394.51
BRYAN LEE 3001 Bishop Drive, Suite 350 San Ramon CA 94583	Common	06/03/2026	4313	107005.53

144: Remarks and Signature

Remarks
Date of Notice	06/05/2026
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)