Morgan Stanley files Form 144 to sell 11,173 shares

Morgan Stanley Smith Barney LLC submitted a Form 144 notice listing the sale of 11,173 shares of Common Stock attributable to RSUs dated 06/03/2026.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice listing the sale of 11,173 shares of Common Stock attributable to RSUs dated 06/03/2026. The filing also records a prior sale by Matthew Tuckness of 5,164 shares on 03/04/2026 for $92,280.68.

Insights

Equity Capital Markets Analyst

Form 144 lists resale of RSU-derived common shares and a recent small open-market disposition.

The filing shows 11,173 shares to be sold from RSUs with an effective date of 06/03/2026. It also records a separate sale by Matthew Tuckness of 5,164 shares on 03/04/2026 for $92,280.68.

Cash-flow treatment and purchaser identity are not included in the excerpt; subsequent transaction confirmations or broker reports would show execution details and settlement.

Key Figures

RSU shares to be sold: 11,173 shares Prior sale - shares: 5,164 shares Proceeds reported for prior sale: $92,280.68 +1 more

4 metrics

RSU shares to be sold 11,173 shares RSU; <date>06/03/2026</date>

Prior sale - shares 5,164 shares Sale by Matthew Tuckness; <date>03/04/2026</date>

Proceeds reported for prior sale $92,280.68 Amount tied to Matthew Tuckness sale on <date>03/04/2026</date>

Filing date shown 06/04/2026 Filer header date

Key Terms

RSU, Form 144, Issuer

3 terms

RSU financial

"Common | 06/03/2026 | RSU | Issuer | | | 11173"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Form 144 regulatory

"CONTENT METADATA: "form_type": "144""

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.

Issuer financial

"Common | 06/03/2026 | RSU | Issuer | | | 11173"

FAQ

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

What does the Form 144 from Morgan Stanley (FIVN) disclose?

It discloses a notice to sell 11,173 shares of Common Stock attributable to RSUs with an effective date of 06/03/2026. It also notes a prior sale of 5,164 shares on 03/04/2026 for $92,280.68.

Who is listed as the filer on the Form 144 for FIVN?

The filer is listed as Morgan Stanley Smith Barney LLC Executive Financial Services at the New York Plaza address. The filing names the broker-dealer entity as the submitting party for the resale notice.

Were the sold securities specified as RSUs in the filing?

Yes. The entry labeled RSU shows 11,173 shares tied to an issuer-originating restricted stock unit disposition with date 06/03/2026.

How much did Matthew Tuckness receive from the prior sale shown?

The filing records Matthew Tuckness sold 5,164 shares on 03/04/2026 for $92,280.68, which is the stated dollar amount associated with that transaction in the excerpt.

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

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Accepted by SEC EDGAR 06/03/2026 - 05:08 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	0002080340
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, Ste 350 San Ramon CALIFORNIA 94583
Phone	925-201-2000
Name of Person for Whose Account the Securities are To Be Sold	Matthew Tuckness
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	11173	279658.98	74723569	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	RSU	Issuer			11173	06/03/2026	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
Matthew Tuckness 3001 Bishop Drive Suite 350 San Ramon CA 94583	Common	03/04/2026	5164	92280.68

144: Remarks and Signature

Remarks	The sale reported on this Form 144 represents an Issuer mandated sale by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units, and it does not represent a discretionary trade by the Reporting Person.
Date of Notice	06/03/2026
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	Matthew Tuckness
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)