259 tracked 13F filers disclose a position in GMAB as of the latest SEC 13F filings, a combined $2.3B 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 | Orbis Allan Gray Ltd | $312.3M | 11.4M | ▼−12% Reduced · −1.6M sh | Q2 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 | Sofinnova Investments, Inc. | $111.1M | 4.0M | ▲+438% Added · +3.3M sh | Q2 2026 | |
| 8 | Deep Track Capital, LP | $98.3M | 3.7M | ▲New +3.7M sh | Q1 2026 | |
| 9 | HARDING LOEVNER LP | $86.7M | 3.2M | ▼−4.1% Reduced · −139K sh | Q1 2026 | |
| 10 | DEERFIELD MANAGEMENT COMPANY, L.P. | $66.1M | 2.5M | ▲New +2.5M sh | Q1 2026 | |
| 11 | FIRST TRUST ADVISORS LP | $66.0M | 2.5M | ▲+84% Added · +1.1M sh | Q1 2026 | |
| 12 | TWO SIGMA INVESTMENTS, LP | $62.8M | 2.3M | ▲+161% Added · +1.4M sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $58.6M | 2.2M | ▲+19% Added · +350K sh | Q1 2026 | |
| 14 | FEDERATED HERMES, INC. | $33.6M | 1.3M | ▲+84% Added · +572K sh | Q1 2026 | |
| 15 | FRANKLIN RESOURCES INC | $32.0M | 1.2M | ▲39× Added · +1.2M sh | Q1 2026 | |
| 16 | Pictet Asset Management Holding SA | $28.9M | 1.1M | ▼−1.9% Reduced · −21K sh | Q1 2026 | |
| 17 | FMR LLC | $27.1M | 1.0M | ▼−4.3% Reduced · −46K sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $25.5M | 951K | ▼−0.7% Reduced · −6K sh | Q1 2026 | |
| 19 | GOLDMAN SACHS GROUP INC | $25.0M | 931K | ▼−30% Reduced · −402K sh | Q1 2026 | |
| 20 | Perpetual Ltd | $25.2M | 919K | ▲+21% Added · +161K sh | Q2 2026 | |
| 21 | ENVESTNET ASSET MANAGEMENT INC | $23.1M | 862K | ▲+6.9% Added · +56K sh | Q1 2026 | |
| 22 | Russell Investments Group, Ltd. | $21.4M | 797K | ▲+12% Added · +86K sh | Q1 2026 | |
| 23 | MILLENNIUM MANAGEMENT LLC | $21.3M | 792K | ▲+738% Added · +698K 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.
Last quarter, 7 funds opened a new position in GMAB and 32 added to an existing one, while 16 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 | 142 funds | $143.3B |
| MICROSOFT CORPMSFT | 140 funds | $105.4B |
| AMAZON.COM INCAMZN | 139 funds | $82.9B |
| META PLATFORMS INC-CLASS AMETA | 139 funds | $39.8B |
| ALPHABET INC-CL AGOOGL | 137 funds | $64.2B |
| BROADCOM INCAVGO | 137 funds | $59.7B |
| JPMORGAN CHASE & COJPM | 137 funds | $25.2B |
| UNITEDHEALTH GROUP INCUNH | 136 funds | $11.8B |
| ALPHABET INC-CL CGOOG | 135 funds | $50.9B |
| APPLE INCAAPL | 134 funds | $108.0B |
| VISA INC-CLASS A SHARESV | 134 funds | $22.4B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 134 funds | $15.8B |
Ranked by how many of GMAB'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 GMAB
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.
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.