Halozyme Therapeutics, Inc. (HALO) ownership: Top institutional holder: BlackRock, Inc. ($857.32M). Insider activity: Net Seller (0 buys, 20 sells). 7 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 13265053.00 | $857.32M | 2026-03-31 |
| VANGUARD GROUP INC | 11566896.00 | $778.45M | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5271218.00 | $340.68M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5249206.00 | $339.26M | 2026-03-31 |
| STATE STREET CORP | 4937854.00 | $319.13M | 2026-03-31 |
| Invesco Ltd. | 4012494.00 | $259.33M | 2026-03-31 |
| BANK OF AMERICA CORP /DE/ | 2913109.00 | $188.27M | 2026-03-31 |
| Boston Partners | 2683683.00 | $173.43M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-06-03 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.