HALOZYME THERAPEUTICS, INC. (HALO) insider trading
No open-market insider purchases of HALOZYME THERAPEUTICS, INC. are on record; 3 open-market sales are.
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Insider purchases
No open-market purchases on record.
Insider sales
3 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Oct 8 Form 4 (opens sec.gov) |
Helen TorleyPresident · planned (10b5-1) · option shares | $6.6M 60,000 at $110.18 |
| Oct 2 Form 4 (opens sec.gov) |
Matthew L. PosardDirector · planned (10b5-1) | $568k 5,230 at $108.54 · 9% of holdings |
| Sep 17 Form 4 (opens sec.gov) |
Matthew L. PosardDirector · planned (10b5-1) | $2.0M 18,996 at $107.74 · 24% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
HALO trades reported by members of Congress
| Reported | Member | Trade | Amount |
|---|---|---|---|
| Oct 12 |  Gilbert Ray Cisneros, Jr.D-CA · House13 days after the trade | Sale | $1K–$15K |
Members of Congress report trades up to 45 days later, in dollar ranges. Every member's trades.
Questions
Are insiders buying HALO stock?
Not recently: no open-market purchases were filed in the last 90 days.
Who bought HALO stock most recently?
No insider has bought HALO on the open market in the filings on record.
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Data as of Oct 8, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer