HALOZYME THERAPEUTICS INC (HALO) Institutional Ownership and Insiders Activity

HALOZYME THERAPEUTICS INC (HALO) is widely held by institutional investors, with 653 firms reporting positions valued at approximately $9.49B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $1.04B in HALO holdings in its latest filing.

Recent insider activity includes 38 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.