Halozyme Therapeutics, Inc.
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A San Diego biopharma company whose ENHANZE technology uses a naturally occurring enzyme to temporarily loosen the gel-like tissue under the skin, letting large-volume biologic medicines be injected in minutes instead of slowly dripped over hours. Its partners sell drugs built on this platform, such as DARZALEX FASPRO and HYQVIA, and it also makes auto-injector devices and its own products like XYOSTED. Co-founded in 1998 by Dr. Gregory Frost, the company's name blends "hyaluronidase" and "enzyme" — the very molecule its science revolves around.
Senior unsecured convertible notes due March 1, 2027
Granted 574.8K · Sold 446.6K
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| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Torley HelenPRESIDENT AND CEO, Director · 108 transactions | +5.5% | 773.9K | 574.8K | — | 446.6K |
| Posard Matthew L.Director · 1 transaction | +5.1% | 77.8K | 3.8K | — | — |
| Snyder Mark HowardSVP, CHIEF LEGAL OFFICER · 12 transactions | +57% | 52.6K | 41.8K | — | — |
| Connaughton BernadetteDirector · 11 transactions | -14.3% | 43.7K | 6.8K | — | 14.1K |
| LaBrosse NicoleSVP, CHIEF FINANCIAL OFFICER · 16 transactions | +18.6% | 42.1K | 48.2K | — | 22.2K |
| Henderson Jeffrey WilliamDirector · 1 transaction | +11.6% | 36.6K | 3.8K | — | — |
| Duncan Barbara GayleDirector · 1 transaction | +19.1% | 23.7K | 3.8K | — | — |
| Caudill CortneySVP, CHIEF OPERATING OFFICER · 9 transactions | — | 15.9K | 33.5K | — | 33.1K |
| Krishnan MaheshDirector · 3 transactions | +35.6% | 14.5K | 11.1K | — | 7.3K |
| Lang James PaulDirector · 2 transactions | — | 4.7K | 4.7K | — | — |
Select a row to see that insider’s individual transactions.
Net open-market activity over the last year: -523.3K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.