David A. Ramsay - 30 Jun 2026 Form 4 Insider Report for HALOZYME THERAPEUTICS, INC. (HALO)

Reporting relationship: EVP, PRESIDENT, DRUG DELIVERY
Issuer ticker: HALO
Reported as of: 30 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Jul 2026, 16:45:54 UTC
Prior SEC filing: 02 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ James R. Oehler, Attorney-in-Fact

Key filing fact

David A. Ramsay filed Form 4 for HALOZYME THERAPEUTICS, INC. (HALO) on 02 Jul 2026.

Key facts

This page summarizes David A. Ramsay's Form 4 filing for HALOZYME THERAPEUTICS, INC. (HALO).
5 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 02 Jul 2026, 16:45.

Change

Previous filing in this sequence was filed on 02 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001283292 Primary reporting owner

RAMSAY DAVID A

Relationship: EVP, PRESIDENT, DRUG DELIVERY
Address: C/O HALOZYME THERAPEUTICS, INC., 12390 EL CAMINO REAL, SAN DIEGO
Signature: /s/ James R. Oehler, Attorney-in-Fact
Signature date: 02 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HALO transaction

Common Stock

Options Exercise

Transaction value
Shares: +10,000
Change %
Price: $0.000000^*
Shares after: 10,000
Date: 30 Jun 2026
Ownership: Direct

HALO transaction

Common Stock

Tax liability

Transaction value
Shares: -5,408
Change %: -54%
Price: $78.27^*
Shares after: 4,592
Date: 30 Jun 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

HALO transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -10,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 30 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 10,000
Exercise price: $0.000000
Footnotes: F2

HALO transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +16,232
Change %
Price: $0.000000^*
Shares after: 16,232
Date: 01 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 16,232
Exercise price: $0.000000
Footnotes: F3

HALO transaction Derivative

Option to Purchase Common Stock

Award

Transaction value
Shares: +39,823
Change %
Price: $0.000000^*
Shares after: 39,823
Date: 01 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 39,823
Exercise price: $77.01
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The reported disposition of 5,408 shares represents the shares that were withheld by the issuer as payment for tax withholding obligations.

Footnote F2

This transaction represents the vesting and settlement of restricted stock units in shares of common stock of the issuer. The shares received upon vesting remain subject to a one-year holding period from the vesting date.

Footnote F3

This award vests one-fourth on the first anniversary of the grant date and then one-fourth on each anniversary date thereafter.

Footnote F4

This option vests one-fourth on such date and then 1/48th monthly thereafter.