Quick Takeaways
- Adage Capital Management, L.P. filed SCHEDULE 13G for SilverBox Corp V Class A Ordinary Shares, par value $0.0001 per share.
- Disclosed ownership: 6.4%.
- Date of event: 31 Dec 2025.
Adage Capital Management, L.P. - 31 Dec 2025 SCHEDULE 13G Report for SilverBox Corp V Class A Ordinary Shares, par value $0.0001 per share
- Filing Manager
- Adage Capital Management, L.P.
- Reporting Manager
- Adage Capital Management, L.P.
- Shares outstanding
- 27,173,913 shares
- Disclosed Ownership
- 1,750,000 shares
- Ownership
- 6.4%
- Form type
- SCHEDULE 13G
- Filing time
- 12 Feb 2026, 09:16:20 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Adage Capital Management, L.P. disclosed 6.4% ownership in SilverBox Corp V Class A Ordinary Shares, par value $0.0001 per share on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 12 Feb 2026, 09:16.
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 (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Adage Capital Management, L.P. | 6.4% | 1,750,000 | 0 | 1,750,000 | /s/ Robert Atchinson | By: Adage Capital Partners LLC, its General Partner, By: Robert Atchinson, its Managing Member | |
| Robert Atchinson | 6.4% | 1,750,000 | 0 | 1,750,000 | /s/ Robert Atchinson | Robert Atchinson, individually | |
| Phillip Gross | 6.4% | 1,750,000 | 0 | 1,750,000 | /s/ Phillip Gross | Phillip Gross, individually |