By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Halozyme Therapeutics, Inc. company insiders have only been selling lately: five insiders trimmed about $48.4 million of stock over 12 months, with no open-market purchases.
Keep in mind most insider selling is routine — stock-based pay has to be converted to cash at some point.
Quarter by quarter: 7 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters. Members of Congress reported 2 trades in HALO over the past two years (one member). Big money check: 668 institutions held HALO as of Q2 2026, and more funds bought than sold.
Are insiders buying or selling HALO stock?
In the last 12 months Halozyme Therapeutics, Inc. insiders made open-market purchases worth about $0 and sales worth about $48.4 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in HALO?
The most recent open-market insider trade in HALO was filed on 2026-10-08.
How many institutions own HALO?
668 investment managers reported holding HALO in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded HALO?
Yes. Members of Congress reported 2 trades in HALO over the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).