Form 144: Proposed sale of 2,000 RARE restricted shares

Morgan Stanley Smith Barney LLC Executive Financial Services filed a Form 144 notice reporting proposed dispositions of Common Stock on 06/15/2026 for shares tied to prior restricted stock grants.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC Executive Financial Services filed a Form 144 notice reporting proposed dispositions of Common Stock on 06/15/2026 for shares tied to prior restricted stock grants. The filing lists 1,298 shares from a 06/29/2022 restricted stock award and 702 shares from a 06/07/2023 restricted stock award; total listed in the excerpt is 2,000 shares.

Insights

Securities Compliance Attorney

Form 144 records intent to sell up to the listed restricted shares under applicable resale rules.

Form 144 is a notice used when an affiliate proposes to sell restricted or control securities in reliance on Rule 144. The excerpt shows restricted stock grants dated 06/29/2022 and 06/07/2023 with respective counts of 1,298 and 702 shares.

Timing and method of sale are not disclosed in the excerpt; subsequent broker filings or Form 4/transaction reports may show completed trades.

Key Figures

Form date: 06/15/2026 Total shares listed: 2,000 shares Restricted grant 1: 1,298 shares +2 more

5 metrics

Form date 06/15/2026 Form 144 filing date shown in excerpt

Total shares listed 2,000 shares Aggregate of listed share counts in the excerpt

Restricted grant 1 1,298 shares Restricted Stock grant dated 06/29/2022

Restricted grant 2 702 shares Restricted Stock grant dated 06/07/2023

Exchange NASDAQ Exchange designation shown in excerpt

Key Terms

Form 144, Restricted Stock, Issuer

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.

Restricted Stock financial

"Common | 06/29/2022 | Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Issuer regulatory

"Restricted Stock | Issuer"

FAQ

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

What does the Form 144 filed for RARE indicate?

It indicates a proposed disposition of restricted Common Stock totaling 2,000 shares as shown in the excerpt. The filing lists 1,298 shares from a 06/29/2022 grant and 702 shares from a 06/07/2023 grant.

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

The excerpt lists Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York. The filing identifies the entity acting in a broker/executive capacity on the notice.

Does this Form 144 confirm the shares were sold?

No. Form 144 is a notice of proposed sale and does not confirm execution. Completion would appear in later transaction reports or broker-dealer records; the excerpt does not show sale confirmation.

What types of securities are listed in the excerpt?

The excerpt lists Common shares described as Restricted Stock tied to award dates 06/29/2022 and 06/07/2023, with respective share counts of 1,298 and 702.

Are proceeds or pricing details included in this Form 144 excerpt?

No. The excerpt does not include dollar proceeds, price ranges, or execution details. Only share counts, grant dates, the filing date 06/15/2026, and a NASDAQ designation appear in the provided text.

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

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Accepted by SEC EDGAR 06/15/2026 - 04:12 PM EDT 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	0001796536
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	ULTRAGENYX PHARMACEUTICAL INC.
SEC File Number	001-36276
Address of Issuer	60 Leveroni Court Novato CALIFORNIA 94949
Phone	(415) 483-8800
Name of Person for Whose Account the Securities are To Be Sold	CORAZON D. SANDERS
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	Director

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	2000	50100.00	98489224	06/15/2026	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	06/29/2022	Restricted Stock	Issuer			1298	06/29/2022	Not Applicable
Common	06/07/2023	Restricted Stock	Issuer			702	06/07/2023	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	06/15/2026
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	/s/ Corazon D. Sanders
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)