435 tracked 13F filers disclose a position in ARGX as of the latest SEC 13F filings, a combined $18.2B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $3.6B | 5.0M | ▼−11% Reduced · −601K sh | Q1 2026 | |
| 2 | PRICE T ROWE ASSOCIATES INC /MD/ | $2.5B | 3.4M | ▲+0.4% Added · +13K sh | Q1 2026 | |
| 3 | JANUS HENDERSON GROUP PLC | $1.8B | 2.5M | ▲+3.4% Added · +84K sh | Q1 2026 | |
| 4 | Artisan Partners Limited Partnership | $1.1B | 1.5M | ▼−16% Reduced · −289K sh | Q1 2026 | |
| 5 | Avoro Capital Advisors LLC | $927.8M | 1.0M | —Held | Q2 2026 | |
| 6 | BlackRock, Inc. | $590.3M | 808K | ▲+9.9% Added · +73K sh | Q1 2026 | |
| 7 | RTW INVESTMENTS, LP | $658.2M | 709K | —Held | Q2 2026 | |
| 8 | MORGAN STANLEY | $409.5M | 561K | ▲+8.1% Added · +42K sh | Q1 2026 | |
| 9 | ALLIANCEBERNSTEIN L.P. | $355.1M | 422K | ▲+2.0% Added · +8K sh | Q1 2026 | |
| 10 | BANK OF AMERICA CORP /DE/ | $292.2M | 400K | ▼−0.2% Reduced · −659 sh | Q1 2026 | |
| 11 | Bellevue Group AG | $279.3M | 301K | ▼−3.8% Reduced · −12K sh | Q2 2026 | |
| 12 | SANDS CAPITAL MANAGEMENT, LLC | $277.0M | 299K | ▼−12% Reduced · −42K sh | Q2 2026 | |
| 13 | SEI INVESTMENTS CO | $209.6M | 287K | ▼−13% Reduced · −44K sh | Q1 2026 | |
| 14 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $245.5M | 265K | ▼−0.5% Reduced · −1K sh | Q2 2026 | |
| 15 | JENNISON ASSOCIATES LLC | $173.4M | 237K | ▲+3.4% Added · +8K sh | Q1 2026 | |
| 16 | FRANKLIN RESOURCES INC | $170.5M | 233K | ▼−1.8% Reduced · −4K sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $169.4M | 232K | ▲+39% Added · +65K sh | Q1 2026 | |
| 18 | Clearbridge Investments, LLC | $168.9M | 231K | ▼−55% Reduced · −282K sh | Q1 2026 | |
| 19 | CITADEL ADVISORS LLC | $160.0M | 219K | ▼−38% Reduced · −132K sh | Q1 2026 | |
| 20 | AMERIPRISE FINANCIAL INC | $157.7M | 216K | ▲+15% Added · +29K sh | Q1 2026 | |
| 21 | BNP PARIBAS FINANCIAL MARKETS | $129.9M | 178K | ▲+151% Added · +107K sh | Q1 2026 | |
| 22 | AMERICAN CENTURY COMPANIES INC | $126.8M | 174K | ▼−21% Reduced · −47K sh | Q1 2026 | |
| 23 | Allspring Global Investments Holdings, LLC | $155.4M | 171K | ▼−2.5% Reduced · −4K sh | Q2 2026 | |
| 24 | Legal & General Group Plc | $110.2M | 151K | ▲+4.5% Added · +6K sh | Q1 2026 | |
| 25 | Pictet Asset Management Holding SA | $108.0M | 148K | ▼−3.2% Reduced · −5K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 4 funds opened a new position in ARGX and 27 added to an existing one, while 30 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 260 funds | $387.5B |
| ALPHABET INC-CL AGOOGL | 258 funds | $169.8B |
| ELI LILLY & COLLY | 257 funds | $79.0B |
| MICROSOFT CORPMSFT | 255 funds | $255.2B |
| AMAZON.COM INCAMZN | 255 funds | $195.1B |
| META PLATFORMS INC-CLASS AMETA | 253 funds | $116.2B |
| APPLE INCAAPL | 249 funds | $283.8B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 249 funds | $47.5B |
| BROADCOM INCAVGO | 248 funds | $153.8B |
| VISA INC-CLASS A SHARESV | 245 funds | $63.0B |
| JPMORGAN CHASE & COJPM | 242 funds | $60.3B |
| MICRON TECHNOLOGY INCMU | 242 funds | $38.2B |
Ranked by how many of ARGX's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
No filings captured for this ticker in the live stream yet.
Connected entities for ARGX
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ARGX/capital-change-brief"
Use Arkolith's capital_change_brief for ARGX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ARGX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.