Quick Takeaways
- ARCH Venture Fund IX, L.P. filed SCHEDULE 13D/A for Vir Biotechnology, Inc. Common Stock, $0.0001 par value (VIR).
- Disclosed ownership: 8.5%.
- Date of event: 27 Feb 2026.
ARCH Venture Fund IX, L.P. - 27 Feb 2026 SCHEDULE 13D/A Report for Vir Biotechnology, Inc. Common Stock, $0.0001 par value (VIR)
- Filing Manager
- ARCH Venture Fund IX, L.P.
- Reporting Manager
- Robert Nelsen
- Symbol
- VIR
- Shares outstanding
- 159,231,812 shares
- Disclosed Ownership
- 13,534,704 shares
- Ownership
- 8.5%
- Form type
- SCHEDULE 13D/A
- Filing time
- 03 Mar 2026, 17:00:02 UTC
- Date of event
- 27 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"ARCH Venture Fund IX, L.P. disclosed 8.5% ownership in Vir Biotechnology, Inc. Common Stock, $0.0001 par value (VIR) on 27 Feb 2026."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 03 Mar 2026, 17:00.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (8)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| ARCH Venture Fund IX, L.P. | 8.1% | 12,916,663 | 0 | 12,916,663 | ARCH Venture Partners IX, L.P. | its General Partner | 0001666306 |
| ARCH Venture Fund IX Overage, L.P. | 8.1% | 12,916,663 | 0 | 12,916,663 | ARCH Venture Partners IX Overage, L.P. | its General Partner | 0001666307 |
| ARCH Venture Partners IX, L.P. | 8.1% | 12,916,663 | 0 | 12,916,663 | ARCH Venture Partners IX, LLC | its General Partner | 0001723173 |
| ARCH Venture Partners IX Overage, L.P. | 8.1% | 12,916,663 | 0 | 12,916,663 | ARCH Venture Partners IX, LLC | its General Partner | 0001723172 |
| ARCH Venture Partners IX, LLC | 8.1% | 12,916,663 | 0 | 12,916,663 | /s/ Mark McDonnell | Mark McDonnell as Attorney-in-Fact for Keith Crandell, Managing Director | 0001723174 |
| Robert Nelsen | 8.5% | 13,534,704 | 584,148 | 12,950,556 | /s/ Mark McDonnell | Mark McDonnell as Attorney-in-Fact for Robert Nelsen | 0001219042 |
| Keith Crandell | 8.3% | 13,189,627 | 272,964 | 12,916,663 | /s/ Mark McDonnell | Mark McDonnell as Attorney-in-Fact for Keith Crandell | 0001219039 |
| Clinton Bybee | 8.1% | 13,008,393 | 30,570 | 12,977,823 | /s/ Mark McDonnell | Mark McDonnell as Attorney-in-Fact for Clinton Bybee | 0001219043 |