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/LEGN/capital-change-brief"
Use Arkolith's capital_change_brief for LEGN. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $464.9M | 25.7M | ▲+5.9% Added · +1.4M sh | Q1 2026 | |
| 2 | DEERFIELD MANAGEMENT COMPANY, L.P. | $139.1M | 7.7M | ▲+30% Added · +1.8M sh | Q1 2026 | |
| 3 | SUVRETTA CAPITAL MANAGEMENT, LLC | $137.1M | 7.6M | ▲+15% Added · +972K sh | Q1 2026 | |
| 4 | HHLR ADVISORS, LTD. | $108.3M | 6.0M | —Held | Q1 2026 | |
| 5 | WESTFIELD CAPITAL MANAGEMENT CO LP | $104.3M | 5.8M | ▼−6.5% Reduced · −401K sh | Q1 2026 | |
| 6 | BlackRock, Inc. | $84.7M | 4.7M | ▲+9.5% Added · +408K sh | Q1 2026 | |
| 7 | Point72 Asset Management, L.P. | $70.3M | 3.9M | ▲+40% Added · +1.1M sh | Q1 2026 | |
| 8 | First Beijing Investment Ltd | $41.5M | 2.3M | ▲New +2.3M sh | Q1 2026 | |
| 9 | Artisan Partners Limited Partnership | $40.8M | 2.3M | ▼−3.7% Reduced · −87K sh | Q1 2026 | |
| 10 | TWO SIGMA INVESTMENTS, LP | $34.2M | 1.9M | ▲+259% Added · +1.4M sh | Q1 2026 | |
| 11 | Kynam Capital Management, LP | $28.5M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 12 | STATE STREET CORP | $27.1M | 1.5M | ▼−1.2% Reduced · −18K sh | Q1 2026 | |
| 13 | GOLDMAN SACHS GROUP INC | $26.5M | 1.5M | ▼−33% Reduced · −710K sh | Q1 2026 | |
| 14 | Patient Square Capital LP | $17.9M | 990K | ▲New +990K sh | Q1 2026 | |
| 15 | Hudson Bay Capital Management LP | $15.9M | 876K | ▲+52% Added · +301K sh | Q1 2026 | |
| 16 | ArrowMark Colorado Holdings LLC | $13.2M | 727K | ▲+0.7% Added · +5K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $10.9M | 603K | ▲+25% Added · +121K sh | Q1 2026 | |
| 18 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $10.4M | 575K | ▲+20% Added · +95K sh | Q1 2026 | |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | $9.9M | 550K | ▼−1.0% Reduced · −5K sh | Q1 2026 | |
| 20 | RENAISSANCE TECHNOLOGIES LLC | $9.4M | 522K | ▲+30% Added · +119K sh | Q1 2026 | |
| 21 | CITADEL ADVISORS LLC | $9.4M | 517K | ▲+190% Added · +339K sh | Q1 2026 | |
| 22 | Jump Financial, LLC | $9.3M | 517K | ▼−1.3% Reduced · −7K sh | Q1 2026 | |
| 23 | Squarepoint Ops LLC | $8.7M | 479K | ▲+17% Added · +70K sh | Q1 2026 | |
| 24 | Candriam S.C.A. | $8.5M | 470K | ▲+80% Added · +208K sh | Q1 2026 | |
| 25 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $7.4M | 407K | ▲+344% Added · +315K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 30, 2026 | Casey Patrick John | Director | Sell (S) | 6K | $89K |
| Jun 30, 2026 | Huang Ying | Chief Executive Officer, Director | Gift (G) | 3K | $0 |
| Jun 25, 2026 | Huang Ying | Chief Executive Officer, Director | Sell (S) | 6K | $82K |
| Mar 25, 2026 | Huang Ying | Chief Executive Officer, Director | Sell (S) | 10K | $87K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 78 funds | $70.0B |
| MICROSOFT CORPMSFT | 77 funds | $44.4B |
| META PLATFORMS INC-CLASS AMETA | 77 funds | $21.5B |
| INTUITIVE SURGICAL INCISRG | 77 funds | $4.2B |
| BOSTON SCIENTIFIC CORPBSX | 77 funds | $2.9B |
| AMAZON.COM INCAMZN | 76 funds | $36.1B |
| ALPHABET INC-CL AGOOGL | 76 funds | $32.0B |
| UNITEDHEALTH GROUP INCUNH | 76 funds | $4.5B |
| BROADCOM INCAVGO | 74 funds | $25.0B |
| ELI LILLY & COLLY | 74 funds | $12.2B |
| MICRON TECHNOLOGY INCMU | 74 funds | $10.1B |
| ADVANCED MICRO DEVICESAMD | 74 funds | $6.6B |
Ranked by how many of LEGN's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LEGN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.