There are no significant Insider Shareholders in Halozyme Therapeutics as of December 12, 2025.
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Helen Torley | President And CEO | 708,719 | 01 Dec, 2025 |
| Connie Matsui | 183,035 | 03 Dec, 2024 | |
| Kenneth J Kelley | 179,833 | 14 Apr, 2021 | |
| Michael J. Labarre | SVP And Chief Technical Officer | 173,756 | 27 Feb, 2025 |
| Matthew L. Posard | 74,039 | 02 May, 2025 | |
| Jean-Pierre Bizzari | 66,815 | 09 May, 2023 | |
| Bernadette Connaughton | 42,123 | 01 Dec, 2025 | |
| Jeffrey William Henderson | 32,776 | 02 May, 2025 | |
| Mark Howard Snyder | SVP And Chief Legal Officer | 30,813 | 13 Jun, 2025 |
| Akiko Moni Miyashita | 24,937 | 02 May, 2025 | |
| Nicole Labrosse | SVP And Chief Financial Officer | 22,079 | 23 Sep, 2025 |
| James M Daly | 20,503 | 15 Aug, 2023 | |
| Masaru Matsuda | SVP And General Counsel | 20,049 | 07 Sep, 2021 |
| Barbara Gayle Duncan | 19,919 | 02 May, 2025 | |
| Elaine D Sun | SVP And Chief Financial Officer | 14,018 | 01 Apr, 2021 |
| Mahesh Krishnan | 10,666 | 02 May, 2025 |
* 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Dec, 2025 | Bernadette Connaughton | Common Stock | D | 829 | $71.60 | 42,123 | D | S |
| 26 Nov, 2025 | Helen Torley | Common Stock | D | 25,000 | $0.00 | 708,719 | D | G |
| 01 Dec, 2025 | Helen Torley | Common Stock | A | 16,569 | $8.11 | 725,288 | D | M |
| 01 Dec, 2025 | Helen Torley | Common Stock | D | 10,406 | $68.51 | 714,882 | D | S |
| 01 Dec, 2025 | Helen Torley | Common Stock | D | 5,402 | $69.44 | 709,480 | D | S |
| 01 Dec, 2025 | Helen Torley | Common Stock | D | 500 | $70.36 | 708,980 | D | S |
| 01 Dec, 2025 | Helen Torley | Common Stock | D | 261 | $71.60 | 708,719 | D | S |
| 10 Nov, 2025 | Bernadette Connaughton | Common Stock | D | 2,000 | $68.48 | 42,952 | D | S |
| 10 Nov, 2025 | Helen Torley | Common Stock | A | 20,000 | $8.11 | 753,719 | D | M |
| 10 Nov, 2025 | Helen Torley | Common Stock | D | 19,900 | $68.71 | 733,819 | D | S |
| 10 Nov, 2025 | Helen Torley | Common Stock | D | 100 | $69.30 | 733,719 | D | S |
| 11 Nov, 2025 | Helen Torley | Common Stock | A | 20,000 | $8.11 | 753,719 | D | M |
| 11 Nov, 2025 | Helen Torley | Common Stock | D | 4,500 | $67.89 | 749,219 | D | S |
| 11 Nov, 2025 | Helen Torley | Common Stock | D | 4,000 | $68.80 | 745,219 | D | S |
| 11 Nov, 2025 | Helen Torley | Common Stock | D | 11,500 | $69.73 | 733,719 | D | S |
| 12 Nov, 2025 | Helen Torley | Common Stock | A | 20,000 | $8.11 | 753,719 | D | M |
| 12 Nov, 2025 | Helen Torley | Common Stock | D | 12,718 | $70.22 | 741,001 | D | S |
| 12 Nov, 2025 | Helen Torley | Common Stock | D | 6,784 | $71.09 | 734,217 | D | S |
| 12 Nov, 2025 | Helen Torley | Common Stock | D | 498 | $71.67 | 733,719 | D | S |
| 01 Oct, 2025 | Bernadette Connaughton | Common Stock | D | 1,500 | $75.09 | 45,452 | D | S |