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/GMAB/capital-change-brief"
Use Arkolith's capital_change_brief for GMAB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Orbis Allan Gray Ltd | $346.8M | 12.9M | ▼−10% Reduced · −1.5M sh | Q1 2026 | |
| 2 | ALLIANCEBERNSTEIN L.P. | $294.4M | 9.6M | ▼−12% Reduced · −1.3M sh | Q1 2026 | |
| 3 | Paradigm Biocapital Advisors LP | $213.8M | 8.0M | ▲+13% Added · +928K sh | Q1 2026 | |
| 4 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $133.5M | 5.0M | ▼−0.1% Reduced · −3K sh | Q1 2026 | |
| 5 | BlackRock, Inc. | $121.7M | 4.5M | ▼−1.2% Reduced · −57K sh | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $118.4M | 4.4M | ▲+26% Added · +922K sh | Q1 2026 | |
| 7 | Deep Track Capital, LP | $98.3M | 3.7M | ▲New +3.7M sh | Q1 2026 | |
| 8 | HARDING LOEVNER LP | $86.7M | 3.2M | ▼−4.1% Reduced · −139K sh | Q1 2026 | |
| 9 | DEERFIELD MANAGEMENT COMPANY, L.P. | $66.1M | 2.5M | ▲New +2.5M sh | Q1 2026 | |
| 10 | FIRST TRUST ADVISORS LP | $66.0M | 2.5M | ▲+84% Added · +1.1M sh | Q1 2026 | |
| 11 | TWO SIGMA INVESTMENTS, LP | $62.8M | 2.3M | ▲+161% Added · +1.4M sh | Q1 2026 | |
| 12 | MORGAN STANLEY | $58.6M | 2.2M | ▲+19% Added · +350K sh | Q1 2026 | |
| 13 | FEDERATED HERMES, INC. | $33.6M | 1.3M | ▲+84% Added · +572K sh | Q1 2026 | |
| 14 | FRANKLIN RESOURCES INC | $32.0M | 1.2M | ▲39× Added · +1.2M sh | Q1 2026 | |
| 15 | Pictet Asset Management Holding SA | $28.9M | 1.1M | ▼−1.9% Reduced · −21K sh | Q1 2026 | |
| 16 | FMR LLC | $27.1M | 1.0M | ▼−4.3% Reduced · −46K sh | Q1 2026 | |
| 17 | NORTHERN TRUST CORP | $25.5M | 951K | ▼−0.7% Reduced · −6K sh | Q1 2026 | |
| 18 | GOLDMAN SACHS GROUP INC | $25.0M | 931K | ▼−30% Reduced · −402K sh | Q1 2026 | |
| 19 | Perpetual Ltd | $25.2M | 919K | ▲+21% Added · +161K sh | Q2 2026 | |
| 20 | ENVESTNET ASSET MANAGEMENT INC | $23.1M | 862K | ▲+6.9% Added · +56K sh | Q1 2026 | |
| 21 | Russell Investments Group, Ltd. | $21.4M | 797K | ▲+12% Added · +86K sh | Q1 2026 | |
| 22 | MILLENNIUM MANAGEMENT LLC | $21.3M | 792K | ▲+738% Added · +698K sh | Q1 2026 | |
| 23 | Sofinnova Investments, Inc. | $20.2M | 752K | ▲New +752K sh | Q1 2026 | |
| 24 | Qube Research & Technologies Ltd | $18.2M | 677K | ▲17× Added · +638K sh | Q1 2026 | |
| 25 | Alyeska Investment Group, L.P. | $17.3M | 645K | ▲+27% Added · +139K 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 104 funds | $27.8B |
| ALPHABET INC-CL AGOOGL | 103 funds | $18.7B |
| AMAZON.COM INCAMZN | 102 funds | $20.7B |
| ELI LILLY & COLLY | 102 funds | $6.9B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 102 funds | $6.0B |
| NVIDIA CORPNVDA | 101 funds | $32.4B |
| BROADCOM INCAVGO | 101 funds | $13.2B |
| META PLATFORMS INC-CLASS AMETA | 101 funds | $11.7B |
| MASTERCARD INC - AMA | 101 funds | $4.1B |
| UNITEDHEALTH GROUP INCUNH | 101 funds | $2.9B |
| VISA INC-CLASS A SHARESV | 100 funds | $6.1B |
| ABBOTT LABORATORIESABT | 100 funds | $2.1B |
Ranked by how many of GMAB's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GMAB. 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.