Cortney Caudill - 01 Oct 2025 Form 3 Insider Report for HALOZYME THERAPEUTICS, INC. (HALO)

Role: SVP, CHIEF OPERATING OFFICER
Signature: /s/ James R. Oehler, Attorney-in-Fact
Issuer symbol: HALO
Transactions as of: 01 Oct 2025
Net transactions value: $0
Form type: 3
Filing time: 06 Oct 2025, 17:14:23 UTC
Next filing: 06 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Caudill Cortney	SVP, CHIEF OPERATING OFFICER	C/O HALOZYME THERAPEUTICS, INC., 12390 EL CAMINO REAL, SAN DIEGO	/s/ James R. Oehler, Attorney-in-Fact	06 Oct 2025	0002090209

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	HALO	Common Stock						7,674	01 Oct 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	HALO	Option to Purchase Common Stock							01 Oct 2025	Common Stock	89,224	$33.51	Direct	F1
holding	HALO	Option to Purchase Common Stock							01 Oct 2025	Common Stock	11,302	$57.44	Direct	F1
holding	HALO	Restricted Stock Unit							01 Oct 2025	Common Stock	27,977	$0.000000	Direct	F2
holding	HALO	Restricted Stock Unit							01 Oct 2025	Common Stock	10,664	$0.000000	Direct	F2
holding	HALO	Performance Stock Unit							01 Oct 2025	Common Stock	2,237	$0.000000	Direct	F3
holding	HALO	Performance Stock Unit							01 Oct 2025	Common Stock	9,246	$0.000000	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This option vests one-fourth on such date and then vests 1/48th monthly thereafter.
F2	One-fourth of the original grant vests on such date and one-fourth vests annually thereafter. Represents a restricted stock unit award with no exercise price.
F3	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The Issuer awarded the reporting person performance-based vesting stock units ("PSUs") on February 23, 2024 that included a performance measurement period ending December 31, 2024. This PSU holding represents the Issuer's determination of the number of stock units that became eligible to vest based on performance for such performance period. The stock units remain subject to a service-based requirement through the third anniversary of the PSU grant date.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney