Halozyme Therapeutics
HALO • NASDAQ
Halozyme Therapeutics is a biotechnology company in the healthcare sector on NASDAQ, led by Dr. Helen I. Torley, M.B., Ch.B, M.R.C.P., with a market cap of $7.3B. As of Q3 2025, 102% of shares are held by 592 institutional investors, with BlackRock, Inc. as the largest holder at 10.99%.
President and Chief Executive OfficerDr. Helen I. Torley, M.B., Ch.B, M.R.C.P.
Market Cap$7.3B
Biotechnology
Healthcare
Employees373.0
Websitehalozyme.com
Country
United States of America
Overview
Overview of institutional ownership in HALO as of Q3 2025 with a market cap of $8.6B
All Institutions
- Institutions
- 592
- Value Held
- $8.8B
- Shares Held
- 119.6M
- Avg Position
- $14.8M
- Median Position
- $1.0M
Hedge Funds
- Hedge Funds
- 69
- Value Held
- $1.1B
- Shares Held
- 15.2M
- Avg Position
- $16.1M
- Median Position
- $2.0M
Ownership Breakdown
Based on market cap of $8.6B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in HALO as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $943.2M 0.02% of portfolio |
 VANGUARD GROUP INC Institution | $852.9M 0.01% of portfolio |
 STATE STREET CORP Institution | $368.1M 0.01% of portfolio |
 ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | $241.3M 0.15% of portfolio |
 Invesco Ltd. ETF Provider | $238.0M 0.04% of portfolio |
 UBS Group AG Institution | $216.0M 0.04% of portfolio |
 SNYDER CAPITAL MANAGEMENT L P Long Only Manager | $200.5M 3.79% of portfolio |
D D. E. Shaw & Co., Inc. Institution | $194.4M 0.17% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $178.3M 0.01% of portfolio |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | $152.4M 0.03% of portfolio |
Net Capital Flow
Institutional buying and selling activity for HALO in Q3 2025
- Traded
- +$407.9M
- Buyers
- 299
- Sellers
- 276
- Total Bought
- +$1.3B
- Total Sold
- −$854.1M
- Avg Position
- $13.7M
Biggest Buyers
| Institution | Net Bought |
|---|---|
D D. E. Shaw & Co., Inc. Institution | +$119.7M +1.6M shares |
UBS Group AG Institution | +$104.2M +1.4M shares |
 FEDERATED INVESTORS INC /PA/ Long Only Manager | +$79.4M +1.1M shares |
 VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy | +$77.6M +1.1M shares |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | +$64.3M +876.1K shares |
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | +$55.0M +749.5K shares |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$48.5M +661.6K shares |
 AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$43.2M +589.7K shares |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$39.4M +537.1K shares |
B BNP PARIBAS ARBITRAGE, SA Institution | +$37.3M +508.6K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
STATE STREET CORP Institution | −$67.2M −915.8K shares |
 GOLDMAN SACHS GROUP INC Institution | −$50.1M −683.2K shares |
SNYDER CAPITAL MANAGEMENT L P Long Only Manager | −$48.7M −663.9K shares |
VANGUARD GROUP INC Institution | −$45.2M −615.8K shares |
 CAISSE DE DEPOT ET PLACEMENT DU QUEBEC Fund of Funds | −$41.4M −564.6K shares |
 ALLIANCEBERNSTEIN L.P. Long Only Manager | −$40.2M −547.9K shares |
M MACQUARIE GROUP LTD Institution | −$39.4M −537.2K shares |
 CONGRESS ASSET MANAGEMENT CO /MA Long Only Manager | −$29.3M −398.9K shares |
Q Qube Research & Technologies Ltd Institution | −$28.2M −384.8K shares |
B BlackRock, Inc. Institution | −$24.9M −339.8K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited HALO in Q3 2025
- New Positions
- 52
- New Value
- $85.6M
- Exited Positions
- 47
- Exited Value
- $51.6M
New Positions
| Institution | Position Value |
|---|---|
 RENAISSANCE GROUP LLC Long Only Manager | $35.1M 478.7K shares |
 HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager | $9.9M 134.6K shares |
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy | $7.7M 105.7K shares |
I ING GROEP NV Institution | $6.7M 90.7K shares |
 BANK OF NOVA SCOTIA / Institution | $5.9M 80.7K shares |
 IEQ CAPITAL, LLC RIA/Wealth | $3.6M 49.5K shares |
 Monument Capital Management RIA/Wealth | $2.0M 27.5K shares |
 Cardinal Capital Management RIA/Wealth | $1.3M 17.8K shares |
 Redwood Investment Management, LLC Long Only Manager | $1.2M 16.2K shares |
 Holocene Advisors, LP Hedge Fund•Long/Short | $1.1M 14.4K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
 Catalio Capital Management, LP Venture Capital | $10.0M 191.5K shares |
T TEXAS PERMANENT SCHOOL FUND Institution | $7.6M 146.0K shares |
A AXA Institution | $6.4M 123.0K shares |
 ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy | $4.5M 86.1K shares |
S Standard Life Aberdeen plc Institution | $4.1M 78.5K shares |
I Invenomic Capital Management LP Hedge Fund•Long/Short | $4.0M 77.8K shares |
Q Quantessence Capital LLC Hedge Fund•Quant | $3.0M 57.9K shares |
L LGT Fund Management Co Ltd. Institution | $1.7M 33.6K shares |
S Shay Capital LLC Institution | $1.6M 30.0K shares |
Q Quadrature Capital Ltd Institution | $1.4M 26.6K shares |
Options Activity
Institutions with the largest Call and Put options positions in HALO as of Q3 2025
- Call Positions
- 8
- Call Value
- $45.9M
- Put Positions
- 8
- Put Value
- $33.4M
Call Positions
| Institution | Position Value |
|---|---|
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $29.2M 4.0K contracts |
J JANE STREET GROUP, LLC Institution | $5.6M 764.0 contracts |
W WOLVERINE TRADING, LLC Institution | $4.4M 597.0 contracts |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $3.7M 510.0 contracts |
 TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy | $1.9M 265.0 contracts |
 Walleye Trading LLC RIA/Wealth | $674.7K 92.0 contracts |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $388.7K 53.0 contracts |
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $19.9M 2.7K contracts |
W WOLVERINE TRADING, LLC Institution | $6.6M 895.0 contracts |
 WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | $3.8M 515.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $2.9M 396.0 contracts |
J JANE STREET GROUP, LLC Institution | $249.4K 34.0 contracts |
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $7.3K 1.0 contracts |
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage | - - contracts |
Walleye Trading LLC RIA/Wealth | - - contracts |
Most Committed Institutions
Institutions with HALO as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
 DLD Asset Management, LP Hedge Fund•Multi-Strategy | 6.04% $42.3M |
 Koa Wealth Management, LLC RIA/Wealth | 4.71% $6.4M |
P Panoramic Capital, LLC Hedge Fund•Long/Short | 4.16% $6.6M |
SNYDER CAPITAL MANAGEMENT L P Long Only Manager | 3.79% $200.5M |
S Steamboat Capital Partners, LLC Hedge Fund•Long/Short | 2.72% $10.5M |
2 2Xideas AG Institution | 2.46% $11.6M |
 BERNZOTT CAPITAL ADVISORS RIA/Wealth | 2.40% $5.1M |
 South Street Advisors LLC RIA/Wealth | 2.38% $18.2M |
F Future Fund LLC Institution | 1.62% $4.6M |
 Unified Investment Management RIA/Wealth | 1.60% $1.6M |
Hedge Fund Spotlight
Discover hedge funds investing in HALO
SummitTX Capital, L.P.
Hedge Fund • Multi-Strategy
Portfolio ManagerThomas Neilson Arbour
- Portfolio Value
- $2.4B
- Positions
- 718
- Last Reported
- Q3 2025
Sector Allocation
Position in Halozyme Therapeutics
- Market Value
- $337.4K
- Shares Held
- 4.6K
- Portfolio Weight
- 0.01%
- Owned Since
- 2025-Q1
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $257.5M | 10.72% | |
ETF ETF | $92.2M | 3.84% | |
ETF ETF | $85.3M | 3.55% |
