Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
APO Corp. - 17 Sep 2025 SCHEDULE 13D/A Report for Diameter Credit Co Common shares of beneficial interest, par value $0.001 per share
- Class ownership
- 20%
- Large-stake signal
-
Ownership
20%
Beneficial ownership of this reported class.
Shares
8,547,379 shares
Shares beneficially owned as disclosed.
Event date
17 Sep 2025
Date tied to the ownership event or amendment.
Accepted by SEC
19 Sep 2025
EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Shares outstanding
- 41,898,917 shares
- Form type
- SCHEDULE 13D/A
- Accepted by SEC
- 19 Sep 2025, 21:30:10 UTC
- Event date
- 17 Sep 2025
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
1 source field
Source evidence
4 source fields
Key filing fact
APO Corp. disclosed 20% ownership in Diameter Credit Co Common shares of beneficial interest, par value $0.001 per share on 17 Sep 2025.
Key facts
- APO Corp. filed SCHEDULE 13D/A for Diameter Credit Co Common shares of beneficial interest, par value $0.001 per share.
- Disclosed ownership: 20%.
- Date of event: 17 Sep 2025.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 19 Sep 2025, 21:30.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (4)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| APO Corp. | 20% | 8,547,379 | 0 | 8,547,379 | /s/ William B. Kuesel | William B. Kuesel/Vice President | 0002012136 |
| AP DLF Offshore Investor, L.P. | 20% | 8,547,379 | 0 | 8,547,379 | Apollo Principal Holdings B, L.P. | General Partner | 0002011995 |
| Apollo Principal Holdings B, L.P. | 20% | 8,547,379 | 0 | 8,547,379 | Apollo Principal Holdings B GP, LLC | General Partner | 0001968376 |
| Apollo Principal Holdings B GP, LLC | 20% | 8,547,379 | 0 | 8,547,379 | /s/ William B. Kuesel | William B. Kuesel/Vice President | 0002011937 |
CIK / CUSIP context first