Halozyme Therapeutics, Inc. (HALO) Insider Ownership

Historic Insider Ownership Trends

As of June 12, 2026, Halozyme Therapeutics's top three insider holders are Helen Torley (President And Ceo, 767.78K shares), Michael J. Labarre (Svp, Chief Technical Officer, 173.76K shares), Jean-Pierre Bizzari (Director, 66.81K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Jeffrey William Henderson - 59,045 0 06 May, 2022
Barbara Gayle Duncan - 19,919 0 02 May, 2025
Michael J. Labarre Svp, Chief Technical Officer 173,756 0 27 Feb, 2025
Helen Torley President And Ceo 767,780 0 07 Apr, 2026
James M Daly - 32,438 0 06 May, 2022
Akiko Moni Miyashita - 24,937 0 02 May, 2025
Jean-Pierre Bizzari - 66,815 0 09 May, 2023
Bernadette Connaughton - 40,123 0 06 Jan, 2026
James Paul Lang - 889 0 06 Jan, 2026
Masaru Matsuda Svp, General Counsel 20,049 0 07 Sep, 2021
Mahesh Krishnan - 10,666 0 02 May, 2025
Mark Howard Snyder Svp, Chief Legal Officer 47,610 0 24 Feb, 2026
Nicole Labrosse Svp, Chief Financial Officer 38,494 0 24 Feb, 2026
Cortney Caudill Svp, Chief Operating Officer 7,055 0 10 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
06 Apr, 2026 Helen Torley Common Stock A 10,000 $12.07 777,780 D M
06 Apr, 2026 Helen Torley Common Stock A 10,000 $12.07 777,780 D M
06 Apr, 2026 Helen Torley Common Stock D 5,900 $63.14 771,880 D S
06 Apr, 2026 Helen Torley Common Stock D 5,900 $63.14 771,880 D S
06 Apr, 2026 Helen Torley Common Stock D 4,100 $64.02 767,780 D S
06 Apr, 2026 Helen Torley Common Stock D 4,100 $64.02 767,780 D S
06 Apr, 2026 Helen Torley Option to Purchase Common Stock D 10,000 $12.07 101,923 D M
06 Apr, 2026 Helen Torley Option to Purchase Common Stock D 10,000 $12.07 101,923 D M
01 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M
01 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M
01 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M
01 Apr, 2026 Helen Torley Common Stock D 19,000 $65.36 768,780 D S
01 Apr, 2026 Helen Torley Common Stock D 19,000 $65.36 768,780 D S
01 Apr, 2026 Helen Torley Common Stock D 19,000 $65.36 768,780 D S
01 Apr, 2026 Helen Torley Common Stock D 1,000 $65.71 767,780 D S
01 Apr, 2026 Helen Torley Common Stock D 1,000 $65.71 767,780 D S
01 Apr, 2026 Helen Torley Common Stock D 1,000 $65.71 767,780 D S
02 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M
02 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M
02 Apr, 2026 Helen Torley Common Stock A 20,000 $12.07 787,780 D M