HALOZYME THERAPEUTICS, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Connaughton Bernadette | — | Sale | 829 | $71.60 | $59,356 | 42,123 | Dec 1, 2025 |
| Torley Helen | PRESIDENT AND CEO | Option Exercise | 16,569 | $8.11 | $134,375 | 725,288 | Dec 1, 2025 |
| Torley Helen | PRESIDENT AND CEO | Sale | 19,900 | $68.71 | $1,367,329 | 733,819 | Nov 12, 2025 |
| Connaughton Bernadette | — | Sale | 2,000 | $68.48 | $136,960 | 42,952 | Nov 10, 2025 |
| Caudill Cortney | SVP, CHIEF OPERATING OFFICER | Sale | 4,263 | $65.19 | $277,905 | 12,737 | Nov 1, 2025 |
| Torley Helen | PRESIDENT AND CEO | Sale | 2,334 | $69.83 | $162,983 | 737,150 | Oct 2, 2025 |
| Connaughton Bernadette | — | Sale | 1,500 | $75.09 | $112,635 | 45,452 | Oct 1, 2025 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Sale | 314 | $78.67 | $24,702 | 22,079 | Sep 22, 2025 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Option Exercise | 1,135 | $12.49 | $14,176 | 44,306 | Sep 10, 2025 |
| Torley Helen | PRESIDENT AND CEO | Sale | 9,500 | $74.22 | $705,090 | 744,219 | Sep 2, 2025 |
| Connaughton Bernadette | — | Sale | 100 | $71.71 | $7,171 | 50,852 | Sep 2, 2025 |
| Torley Helen | PRESIDENT AND CEO | Sale | 18,717 | $63.01 | $1,179,358 | 735,002 | Aug 13, 2025 |
| Torley Helen | PRESIDENT AND CEO | Option Exercise | 20,000 | $8.11 | $162,200 | 753,719 | Jul 10, 2025 |
| Torley Helen | PRESIDENT AND CEO | Sale | 20,000 | $52.57 | $1,051,400 | 733,719 | Jun 20, 2025 |
| Snyder Mark Howard | SVP, CHIEF LEGAL OFFICER | Option Exercise | 5,035 | — | — | 33,524 | Jun 12, 2025 |
| Posard Matthew L. | — | Award / Grant | 4,165 | — | — | 74,039 | May 1, 2025 |
| Miyashita Akiko Moni | — | Award / Grant | 4,165 | — | — | 24,937 | May 1, 2025 |
| Krishnan Mahesh | — | Award / Grant | 4,165 | — | — | 10,666 | May 1, 2025 |
| Henderson Jeffrey William | — | Award / Grant | 4,165 | — | — | 32,776 | May 1, 2025 |
| Duncan Barbara Gayle | — | Award / Grant | 4,165 | — | — | 19,919 | May 1, 2025 |
| Connaughton Bernadette | — | Award / Grant | 4,165 | — | — | 50,952 | May 1, 2025 |
| Henderson Jeffrey William | — | Sale | 200 | $61.00 | $12,200 | 28,611 | Apr 28, 2025 |
| Henderson Jeffrey William | — | Sale | 503 | $64.05 | $32,217 | 33,108 | Apr 1, 2025 |
| Henderson Jeffrey William | — | Sale | 1,795 | $57.93 | $103,984 | 36,816 | Mar 3, 2025 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Sale | 100 | $58.74 | $5,874 | 173,756 | Feb 25, 2025 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Option Exercise | 4,747 | — | — | 197,863 | Feb 23, 2025 |
| Snyder Mark Howard | SVP, CHIEF LEGAL OFFICER | Tax Withholding | 3,775 | $57.75 | $218,006 | 28,489 | Feb 23, 2025 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Option Exercise | 6,688 | — | — | 35,501 | Feb 23, 2025 |
| Torley Helen | PRESIDENT AND CEO | Option Exercise | 22,436 | — | — | 745,800 | Feb 23, 2025 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Tax Withholding | 3,103 | $58.29 | $180,874 | 191,017 | Feb 16, 2025 |
| Snyder Mark Howard | SVP, CHIEF LEGAL OFFICER | Tax Withholding | 9,373 | $58.29 | $546,352 | 23,038 | Feb 16, 2025 |
| Torley Helen | PRESIDENT AND CEO | Tax Withholding | 38,668 | $58.29 | $2,253,958 | 705,880 | Feb 16, 2025 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Option Exercise | 5,329 | — | — | 31,682 | Feb 15, 2025 |
| Henderson Jeffrey William | — | Sale | 3,900 | $56.41 | $219,999 | 38,611 | Feb 3, 2025 |
| Henderson Jeffrey William | — | Sale | 10,000 | $50.01 | $500,100 | 43,611 | Jan 6, 2025 |
| Snyder Mark Howard | SVP, CHIEF LEGAL OFFICER | Tax Withholding | 4,289 | $47.74 | $204,757 | 15,002 | Jan 3, 2025 |
| MATSUI CONNIE | — | Gift | 10,470 | — | — | 183,035 | Nov 29, 2024 |
| Torley Helen | PRESIDENT AND CEO | Gift | 10,000 | — | — | 666,744 | Nov 29, 2024 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Sale | 9,923 | $53.74 | $533,262 | 173,833 | Oct 15, 2024 |
| Torley Helen | PRESIDENT AND CEO | Sale | 5,981 | $51.85 | $310,115 | 680,763 | Oct 8, 2024 |
| Torley Helen | PRESIDENT AND CEO | Sale | 10,000 | $56.34 | $563,400 | 676,744 | Sep 24, 2024 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Option Exercise | 10,000 | $16.65 | $166,500 | 183,756 | Sep 17, 2024 |
| Torley Helen | PRESIDENT AND CEO | Option Exercise | 10,000 | $13.87 | $138,700 | 686,744 | Sep 10, 2024 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Option Exercise | 5,580 | $18.41 | $102,728 | 173,756 | Aug 27, 2024 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Option Exercise | 10,000 | $16.65 | $166,500 | 178,176 | Aug 21, 2024 |
| Torley Helen | PRESIDENT AND CEO | Option Exercise | 10,000 | $13.87 | $138,700 | 686,744 | Aug 14, 2024 |
| Posard Matthew L. | — | Sale | 10,000 | $55.72 | $557,200 | 89,755 | Aug 13, 2024 |
| LaBarre Michael J. | SVP, CHIEF TECHNICAL OFFICER | Option Exercise | 10,000 | $8.11 | $81,100 | 178,176 | Jul 24, 2024 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Sale | 992 | $54.25 | $53,816 | 15,480 | Jul 22, 2024 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | Sale | 10,000 | $51.93 | $519,300 | 15,480 | Jun 28, 2024 |