Institutional shares held 128 Million
626K calls
455K puts
Total value of holdings $8.96B
$43.8M calls
$31.9M puts
Market Cap $9.75B
139,288,992 Shares Out.
Institutional ownership 91.8%
# of Institutions 667


Latest Institutional Activity in HALO

Top Purchases

Q3 2025
Dld Asset Management, LP Shares Held: 30M ($2.1B)
Q3 2025
D. E. Shaw & Co., Inc. Shares Held: 2.65M ($186M)
Q3 2025
Ubs Group Ag Shares Held: 2.95M ($206M)
Q3 2025
Federated Hermes, Inc. Shares Held: 1.45M ($102M)
Q3 2025
Voloridge Investment Management, LLC Shares Held: 1.06M ($74.1M)

Top Sells

Q3 2025
Jpmorgan Chase & CO Shares Held: 768K ($53.8M)
Q3 2025
Artisan Partners Limited Partnership Shares Held: 62.6K ($4.38M)
Q3 2025
State Street Corp Shares Held: 5.02M ($351M)
Q3 2025
Goldman Sachs Group Inc Shares Held: 685K ($47.9M)
Q3 2025
Snyder Capital Management L P Shares Held: 2.73M ($191M)

About HALO

Halozyme Therapeutics, Inc. operates as a biopharma technology platform company in the United States, Switzerland, Ireland, Belgium, Japan, and internationally. The company's products are based on the ENHANZE drug delivery technology, a patented recombinant human hyaluronidase enzyme (rHuPH20) that enables the subcutaneous delivery of injectable biologics, such as monoclonal antibodies and other therapeutic molecules, as well as small molecules and fluids. Its flagship product is Hylenex recombinant, a formulation of rHuPH20 to facilitate subcutaneous fluid administration for achieving hydration to enhance the dispersion and absorption of other injected drugs in subcutaneous urography and to improve resorption of radiopaque agents. The company also develops Perjeta; RITUXAN HYCELA and MabThera SC for the treatment of non-Hodgkin lymphoma and chronic lymphocytic leukemia (CLL); RITUXAN SC for patients with CLL; and HYQVIA for the treatment of immunodeficiency disorders. In addition, it is developing Tecentriq for non-small cell lung cancer; OCREVUS for multiple sclerosis; DARZALEX for the treatment of patients with amyloidosis, smoldering myeloma, and multiple myeloma; nivolumab for the treatment of solid tumors; ARGX-113, a human neonatal Fc receptor; ARGX-117 to treat autoimmune diseases; and BMS-986179, an anti-CD-73 antibody. The company has collaborations with F. Hoffmann-La Roche, Ltd.; Hoffmann-La Roche, Inc.; Baxalta US Inc.; Baxalta GmbH; Pfizer Inc.; Janssen Biotech, Inc.; AbbVie, Inc.; Eli Lilly and Company; Bristol-Myers Squibb Company; Alexion Pharma Holding; ARGENX BVBA; Horizon Therapeutics plc; National Institute of Allergy and Infectious Diseases; Centre for the AIDS Programme of Research in South Africa; and ViiV Healthcare Limited for small and large molecule targets for the treatment and prevention of HIV. Halozyme Therapeutics, Inc. was founded in 1998 and is based in San Diego, California.


Insider Transactions at HALO

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
676K Shares
From 10 Insiders
Grant, award, or other acquisition 25K shares
Exercise of conversion of derivative security 651K shares
Sell / Disposition
617K Shares
From 10 Insiders
Open market or private sale 454K shares
Payment of exercise price or tax liability 138K shares
Bona fide gift 25K shares

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