Quick Takeaways
- MIZUHO FINANCIAL GROUP INC filed SCHEDULE 13G for SilverBox Corp IV Common Shares (SBXD).
- Disclosed ownership: 8%.
- Date of event: 31 Dec 2025.
MIZUHO FINANCIAL GROUP INC - 31 Dec 2025 SCHEDULE 13G Report for SilverBox Corp IV Common Shares (SBXD)
- Filing Manager
- MIZUHO FINANCIAL GROUP INC
- Reporting Manager
- Mizuho Financial Group, Inc.
- Security
- SilverBox Corp IV Common Shares
- Symbol
- SBXD
- Shares outstanding
- 20,570,913 shares
- Disclosed Ownership
- 1,645,673 shares
- Ownership
- 8%
- Form type
- SCHEDULE 13G
- Filing time
- 12 Feb 2026, 06:40:07 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"MIZUHO FINANCIAL GROUP INC disclosed 8% ownership in SilverBox Corp IV Common Shares (SBXD) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 12 Feb 2026, 06:40.
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 (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Mizuho Financial Group, Inc. | 8% | 1,645,673 | 1,645,673 | 0 | /s/ Takahiro Katsura | Takahiro Katsura, Managing Director, Global Corporate Function Coordination Department |