HALO: Form 144 notice for 14,700 common shares

Morgan Stanley Smith Barney LLC submitted a Form 144 notice relating to the proposed sale of Common stock of HALO totaling 14,700 shares.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice relating to the proposed sale of Common stock of HALO totaling 14,700 shares. The filing lists three vesting entries dated 02/16/2026, 02/20/2026, and 02/23/2026 with quantities 10,879, 2,456, and 1,365 respectively and references 05/15/2026.

Insights

Securities Compliance Counsel

Form 144 notice documents proposed resale of restricted shares following vesting.

Form 144 is a regulatory notice used to report an intended sale of securities acquired in unregistered transactions. The entries here show restricted stock vesting with three dated vesting events and specific share counts.

Cash‑flow treatment and the exact method of sale are not detailed in the excerpt; subsequent sale details will appear in 144 amendments or Form 4 filings if sales occur.

Key Figures

Total shares listed: 14,700 shares Vesting entry: 10,879 shares Vesting entry: 2,456 shares +2 more

5 metrics

Total shares listed 14,700 shares Aggregate figure appearing in the filer information line

Vesting entry 10,879 shares Restricted stock vesting dated 02/16/2026

Vesting entry 2,456 shares Restricted stock vesting dated 02/20/2026

Vesting entry 1,365 shares Restricted stock vesting dated 02/23/2026

Reference date 05/15/2026 Date shown in the filer information line

Key Terms

Form 144, Restricted stock vesting, Services Rendered

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 vesting financial

"Restricted stock vesting under a registered plan"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Services Rendered financial

"Services Rendered Common | 02/20/2026"

FAQ

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

What does HALO's Form 144 filing announce?

It notifies a proposed resale of Common stock totaling 14,700 shares. The notice lists three vesting events on 02/16/2026, 02/20/2026, and 02/23/2026 with the listed share quantities.

Which specific share amounts are listed in the HALO filing?

The filing shows entries of 10,879; 2,456; and 1,365 shares. These amounts are tied to restricted stock vesting under a registered plan on the dates indicated in the notice.

Who is the filer named on the Form 144 for HALO?

The filer is listed as Morgan Stanley Smith Barney LLC. The line shows the firm’s address and indicates the filing concerns Common stock to be sold under the notice.

Does this Form 144 confirm that the shares were sold?

No; Form 144 is a notice of an intended sale, not proof of sale. Final sale details or actual dispositions would appear in later filings or amendments if the transactions occur.

What is the listed reason for the securities being available to sell?

The entries are described as 'Restricted stock vesting under a registered plan' for 'Services Rendered.' That language indicates the shares became vested due to compensation under a registered plan.

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

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Accepted by SEC EDGAR 05/15/2026 - 04:13 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	0001910662
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	HALOZYME THERAPEUTICS, INC.
SEC File Number	001-32335
Address of Issuer	12390 El Camino Real San Diego CALIFORNIA 92130
Phone	(858) 794-8889
Name of Person for Whose Account the Securities are To Be Sold	NICOLE LABROSSE
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	Former 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	14700	986591.97	118613000	05/15/2026	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	02/23/2026	Restricted stock vesting under a registered plan	Issuer			1365	02/23/2026	Services Rendered
Common	02/20/2026	Restricted stock vesting under a registered plan	Issuer			2456	02/20/2026	Services Rendered
Common	02/16/2026	Restricted stock vesting under a registered plan	Issuer			10879	02/16/2026	Services Rendered

* 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	05/15/2026
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/ Nicole Marie Labrosse
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)