Snyder Mark Howard (CIK 1902866) reported 18 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-24). Recent activity: Buy HALO (5,332 shares), Sell HALO (2,876 shares), Buy HALO (7,011 shares), Sell HALO (3,782 shares), Buy HALO (4,796 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 5,332 | $0 |
| 2026-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 2,876 | $204,138 |
| 2026-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 7,011 | $0 |
| 2026-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 3,782 | $267,160 |
| 2026-02-17 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 4,796 | $0 |
| 2026-02-17 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 2,587 | $205,511 |
| 2026-02-17 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 12,016 | $0 |
| 2026-02-17 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 6,481 | $514,851 |
| 2026-01-06 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 7,611 | $0 |
| 2026-01-06 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 4,243 | $298,325 |
| 2025-06-13 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 5,035 | $0 |
| 2025-06-13 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 2,711 | $147,858 |
| 2025-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 7,012 | $0 |
| 2025-02-24 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 3,775 | $218,006 |
| 2025-02-18 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 17,409 | $0 |
| 2025-02-18 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 9,373 | $546,352 |
| 2025-02-18 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Buy | 4,796 | $0 |
| 2025-02-18 | HALOZYME THERAPEUTICS, INC. (HALO) | SVP, CHIEF LEGAL OFFICER | Sell | 2,582 | $150,505 |
Source: SEC Form 4 filings · as of 2026-02-24