HALO HALOZYME THERAPEUTICS, INC.: institutional ownership and insider trading
746 funds reported holding $11.1B of HALOZYME THERAPEUTICS, INC. in their latest 13F filings; in Q2 2026 funds net bought $222M, with 101 new positions and 67 funds selling out; over the last 12 months insiders bought $0 and sold $48.4M on the open market.
Famous investors holding HALO
- Ray Dalio (Bridgewater Associates): $36.3M, 0.2% of the portfolio
- Two Sigma (Two Sigma Investments): $129M, 0.1% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $160M, 0.1% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $37.5M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $33.1M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.55M, 0.0% of the portfolio
Largest institutional holders of HALO
- BlackRock, Inc. (BLK) — $1.04B
- VANGUARD GROUP INC — $778M
- VANGUARD CAPITAL MANAGEMENT LLC — $419M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $415M
- STATE STREET CORP (STT, STT-PG) — $405M
- CONGRESS ASSET MANAGEMENT CO — $252M
- Invesco Ltd. (IVZ) — $249M
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $222M
- Boston Partners — $217M
- BANK OF AMERICA CORP /DE/ (BAC, BAC-PB, BAC-PE, BAC-PK, BAC-PL, BAC-PM, BAC-PN, BAC-PO, BAC-PP, BML-PG, BML-PH, BML-PJ, BML-PL) — $215M
Recent HALO insider trades
- Oct 8, 2026: Torley Helen sold 60,000 shares ($6.61M)
- Oct 1, 2026: Posard Matthew L. sold 5,230 shares ($568K)
- Sep 16, 2026: Posard Matthew L. sold 18,996 shares ($2.05M)
- Sep 11, 2026: Torley Helen sold 60,000 shares ($6.44M)
Members of Congress trading HALO
- Sep 29, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Mar 9, 2026: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- Mar 24, 2025: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Sep 9, 2024: Josh Gottheimer sold part of $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 5.2% (Schedule 13G, filed Apr 30, 2026)