ARGENX SE (ARGX): Institutional Ownership
Hedge funds and institutional managers reporting a position in ARGX · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
19
13F filers
Aggregate Value
$626.4M
Across holders
Last Price
$887.18
2026-06-26
Sector
Health Care
GICS
Holder activity10 new4 added5 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| SANDS CAPITAL MANAGEMENT, LLC CIK 0001020066 | Institutional Manager | 340K | $248.5M | 39.7% | 1.0% | Reduced | $-12.1M | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 205K | $149.7M | 23.9% | 0.0% | Added | +$130.2M | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 109K | $79.7M | 12.7% | 0.1% | Reduced | $-109.1M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 90K | $65.7M | 10.5% | 0.1% | New | — | Q1 2026 |
| Hudson Bay Capital Management LP CIK 0001393825 | Hedge Fund | 30K | $21.9M | 3.5% | 0.1% | Added | +$6.0M | Q1 2026 |
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 25K | $21.0M | 3.4% | 0.3% | New | — | Q4 2025 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 26K | $18.6M | 3.0% | 0.0% | Added | +$2.3M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 13K | $9.6M | 1.5% | 0.0% | Reduced | $-21.0M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 7K | $3.8M | 0.6% | 0.0% | New | — | Q2 2025 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 2K | $2.0M | 0.3% | 0.0% | New | — | Q4 2025 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 2K | $1.8M | 0.3% | 0.0% | New | — | Q4 2025 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 2K | $1.1M | 0.2% | 0.0% | New | — | Q3 2025 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 1K | $887K | 0.1% | 0.0% | New | — | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 984 | $827K | 0.1% | 0.0% | New | — | Q4 2025 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 998 | $736K | 0.1% | 0.0% | New | — | Q3 2025 |
| Bridgewater Advisors Inc. CIK 0001600319 | Hedge Fund | 334 | $268K | 0.0% | 0.0% | Reduced | $-3K | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 272 | $229K | 0.0% | 0.0% | New | — | Q4 2025 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 51 | $37K | 0.0% | 0.0% | Reduced | $-4.2M | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 28 | $20K | 0.0% | 0.0% | Added | +$20K | Q1 2026 |
Reduced
Institutional Manager
$248.5M· 39.7% of total· 1.0% port· 340K sh· $-12.1M QoQ· Q1 2026
Added
Hedge Fund
$149.7M· 23.9% of total· 0.0% port· 205K sh· +$130.2M QoQ· Q1 2026
Reduced
Hedge Fund
$79.7M· 12.7% of total· 0.1% port· 109K sh· $-109.1M QoQ· Q1 2026
New
Hedge Fund
$65.7M· 10.5% of total· 0.1% port· 90K sh· — QoQ· Q1 2026
Added
Hedge Fund
$21.9M· 3.5% of total· 0.1% port· 30K sh· +$6.0M QoQ· Q1 2026
New
Hedge Fund
$21.0M· 3.4% of total· 0.3% port· 25K sh· — QoQ· Q4 2025
Added
Hedge Fund
$18.6M· 3.0% of total· 0.0% port· 26K sh· +$2.3M QoQ· Q1 2026
Reduced
Hedge Fund
$9.6M· 1.5% of total· 0.0% port· 13K sh· $-21.0M QoQ· Q1 2026
New
Hedge Fund
$3.8M· 0.6% of total· 0.0% port· 7K sh· — QoQ· Q2 2025
New
Hedge Fund
$2.0M· 0.3% of total· 0.0% port· 2K sh· — QoQ· Q4 2025
New
Hedge Fund
$1.8M· 0.3% of total· 0.0% port· 2K sh· — QoQ· Q4 2025
New
Hedge Fund
$1.1M· 0.2% of total· 0.0% port· 2K sh· — QoQ· Q3 2025
New
Hedge Fund
$887K· 0.1% of total· 0.0% port· 1K sh· — QoQ· Q1 2026
New
Hedge Fund
$827K· 0.1% of total· 0.0% port· 984 sh· — QoQ· Q4 2025
New
Hedge Fund
$736K· 0.1% of total· 0.0% port· 998 sh· — QoQ· Q3 2025
Reduced
Hedge Fund
$268K· 0.0% of total· 0.0% port· 334 sh· $-3K QoQ· Q1 2026
New
Hedge Fund
$229K· 0.0% of total· 0.0% port· 272 sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$37K· 0.0% of total· 0.0% port· 51 sh· $-4.2M QoQ· Q1 2026
Added
Hedge Fund
$20K· 0.0% of total· 0.0% port· 28 sh· +$20K QoQ· Q1 2026