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/GENB/capital-change-brief"
Use Arkolith's capital_change_brief for GENB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Flagship Pioneering, LLC | $783.4M | 62.7M | ▲New +62.7M sh | Q1 2026 | |
| 2 | FMR LLC | $52.7M | 4.2M | ▲New +4.2M sh | Q1 2026 | |
| 3 | BRAIDWELL LP | $44.9M | 3.6M | ▲New +3.6M sh | Q1 2026 | |
| 4 | JPMORGAN CHASE & CO | $33.9M | 2.9M | ▲New +2.9M sh | Q1 2026 | |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $26.4M | 2.1M | ▲New +2.1M sh | Q1 2026 | |
| 6 | ARCH Venture Management, LLC | $24.3M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 7 | HARBOURVEST PARTNERS LLC | $21.5M | 1.7M | ▲New +1.7M sh | Q1 2026 | |
| 8 | BAKER BROS. ADVISORS LP | $17.8M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 9 | HARVARD MANAGEMENT CO INC | $13.9M | 1.1M | ▲New +1.1M sh | Q1 2026 | |
| 10 | NVIDIA CORP | $10.4M | 833K | ▲New +833K sh | Q1 2026 | |
| 11 | Siren, L.L.C. | $9.2M | 736K | ▲New +736K sh | Q1 2026 | |
| 12 | Alyeska Investment Group, L.P. | $6.3M | 500K | ▲New +500K sh | Q1 2026 | |
| 13 | ARK Investment Management LLC | $6.2M | 498K | ▲New +498K sh | Q1 2026 | |
| 14 | MILLENNIUM MANAGEMENT LLC | $4.7M | 377K | ▲New +377K sh | Q1 2026 | |
| 15 | UBS Group AG | $4.5M | 357K | ▲New +357K sh | Q1 2026 | |
| 16 | Affinity Asset Advisors, LLC | $4.4M | 350K | ▲New +350K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $4.2M | 337K | ▲New +337K sh | Q1 2026 | |
| 18 | ExodusPoint Capital Management, LP | $3.9M | 312K | ▲New +312K sh | Q1 2026 | |
| 19 | CenterBook Partners LP | $3.3M | 267K | ▲New +267K sh | Q1 2026 | |
| 20 | SPHERA FUNDS MANAGEMENT LTD. | $2.3M | 185K | ▲New +185K sh | Q1 2026 | |
| 21 | GOLDMAN SACHS GROUP INC | $2.1M | 171K | ▲New +171K sh | Q1 2026 | |
| 22 | VANGUARD CAPITAL MANAGEMENT LLC | $1.6M | 131K | ▲New +131K sh | Q1 2026 | |
| 23 | JANE STREET GROUP, LLC | $1.5M | 123K | ▲New +123K sh | Q1 2026 | |
| 24 | GEODE CAPITAL MANAGEMENT, LLC | $1.5M | 118K | ▲New +118K sh | Q1 2026 | |
| 25 | LMR Partners LLP | $1.3M | 100K | ▲New +100K 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 |
|---|---|---|---|---|---|
| Mar 4, 2026 | Nally Michael | Chief Executive Officer, Director | Buy (P) | 20K | $240K |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 12.7M | — |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Buy (P) | 1.6M | $25.0M |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Buy (P) | 1.6M | $25.0M |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Buy (P) | 1.6M | $25.0M |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 2.8M | — |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 2.8M | — |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 987K | — |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 13.7M | — |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 3.0M | $0 |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 2.1M | $0 |
| Mar 2, 2026 | Flagship Pioneering Fund VI, L.P. | 10% Owner | Conversion (C) | 2.5M | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 8 funds | $2.5B |
| AMAZON.COM INCAMZN | 8 funds | $2.0B |
| REVOLUTION MEDICINES INCRVMD | 8 funds | $1.3B |
| MICROSOFT CORPMSFT | 8 funds | $868.6M |
| META PLATFORMS INC-CLASS AMETA | 8 funds | $825.7M |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 8 funds | $675.7M |
| BROADCOM INCAVGO | 8 funds | $541.5M |
| XENON PHARMACEUTICALS INCXENE | 8 funds | $289.5M |
| IONIS PHARMACEUTICALS INCIONS | 8 funds | $259.0M |
| GITLAB INC-CL AGTLB | 8 funds | $32.0M |
| SYNOPSYS INCSNPS | 7 funds | $2.0B |
| ADVANCED MICRO DEVICESAMD | 7 funds | $1.3B |
Ranked by how many of GENB'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 GENB. 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.