HALOZYME THERAPEUTICS INC (HALO): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in HALO · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
28
13F filers
Aggregate Value
$749.1M
Across holders
Last Price
$108.64
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity14 increased12 reduced1 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 2.01M | $157.0M | 21.0% | 0.1% | Added | $-122.1M | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 1.70M | $133.4M | 17.8% | 0.1% | Reduced | $-16.7M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 1.65M | $129.4M | 17.3% | 0.1% | Added | +$5.3M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 786K | $61.5M | 8.2% | 0.0% | Reduced | +$60.8M | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 739K | $57.9M | 7.7% | 0.1% | Reduced | $-592K | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 480K | $37.5M | 5.0% | 0.1% | Reduced | $-19.7M | Q2 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 463K | $36.3M | 4.8% | 0.1% | Reduced | $-3.8M | Q2 2026 |
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 428K | $33.5M | 4.5% | 0.0% | Reduced | $-1.3M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 289K | $22.6M | 3.0% | 0.0% | Added | +$19.3M | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 188K | $14.7M | 2.0% | 0.0% | Added | +$10.2M | Q2 2026 |
Added
Hedge Fund
$157.0M· 21.0% of total· 0.1% port· 2.01M sh· $-122.1M QoQ· Q2 2026
Reduced
Hedge Fund
$133.4M· 17.8% of total· 0.1% port· 1.70M sh· $-16.7M QoQ· Q2 2026
Added
Hedge Fund
$129.4M· 17.3% of total· 0.1% port· 1.65M sh· +$5.3M QoQ· Q2 2026
Reduced
Hedge Fund
$61.5M· 8.2% of total· 0.0% port· 786K sh· +$60.8M QoQ· Q2 2026
Reduced
Hedge Fund
$57.9M· 7.7% of total· 0.1% port· 739K sh· $-592K QoQ· Q2 2026
Reduced
Hedge Fund
$37.5M· 5.0% of total· 0.1% port· 480K sh· $-19.7M QoQ· Q2 2026
Reduced
Hedge Fund
$36.3M· 4.8% of total· 0.1% port· 463K sh· $-3.8M QoQ· Q2 2026
Reduced
Institutional Manager
$33.5M· 4.5% of total· 0.0% port· 428K sh· $-1.3M QoQ· Q2 2026
Added
Hedge Fund
$22.6M· 3.0% of total· 0.0% port· 289K sh· +$19.3M QoQ· Q2 2026
Added
Hedge Fund
$14.7M· 2.0% of total· 0.0% port· 188K sh· +$10.2M QoQ· Q2 2026
Added
Hedge Fund
$12.4M· 1.7% of total· 0.0% port· 159K sh· $-9.1M QoQ· Q2 2026
Added
Hedge Fund
$10.6M· 1.4% of total· 0.0% port· 135K sh· +$391K QoQ· Q2 2026
Added
Hedge Fund
$8.2M· 1.1% of total· 0.0% port· 104K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$7.7M· 1.0% of total· 0.0% port· 98K sh· $-211.7M QoQ· Q2 2026
Reduced
Hedge Fund
$7.6M· 1.0% of total· 0.3% port· 97K sh· $-37.0M QoQ· Q2 2026
Added
Hedge Fund
$6.0M· 0.8% of total· 0.0% port· 77K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$3.4M· 0.5% of total· 0.0% port· 44K sh· +$1.8M QoQ· Q2 2026
Reduced
Hedge Fund
$2.9M· 0.4% of total· 0.0% port· 37K sh· $-2.0M QoQ· Q2 2026
Reduced
Hedge Fund
$1.6M· 0.2% of total· 0.0% port· 20K sh· $-35.3M QoQ· Q2 2026
Added
Hedge Fund
$978K· 0.1% of total· 0.0% port· 13K sh· — QoQ· Q2 2026
Added
Hedge Fund
$852K· 0.1% of total· 0.0% port· 12K sh· — QoQ· Q3 2025
Unchanged
Hedge Fund
$720K· 0.1% of total· 0.0% port· 9K sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$635K· 0.1% of total· 0.0% port· 8K sh· $-1.6M QoQ· Q2 2026
Added
Hedge Fund
$424K· 0.1% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Added
Hedge Fund
$354K· 0.0% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Added
Hedge Fund
$333K· 0.0% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
Unchanged
Institutional Manager
$317K· 0.0% of total· 0.0% port· 4K sh· +$0 QoQ· Q2 2026
Reduced
Hedge Fund
$310K· 0.0% of total· 0.0% port· 4K sh· $-173K QoQ· Q2 2026
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