Apollo Principal Holdings B, L.P. - 02 Mar 2026 Form 4 Insider Report for Diameter Credit Co

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
04 Mar 2026, 18:20:13 UTC
Prior SEC filing
30 Jan 2026
Next SEC filing
01 May 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
see signatures attached as Exhibit 99.2

Key filing fact

Apollo Principal Holdings B, L.P. filed Form 4 for Diameter Credit Co on 04 Mar 2026.

Key facts

  • This page summarizes Apollo Principal Holdings B, L.P.'s Form 4 filing for Diameter Credit Co.
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 04 Mar 2026, 18:20.

Change

  • Previous filing in this sequence was filed on 30 Jan 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (4)

CIK 0001968376 Primary reporting owner

Apollo Principal Holdings B, L.P.

Relationship
10%+ Owner
Address
9 W. 57TH STREET, 41ST FLOOR, NEW YORK
Signature
see signatures attached as Exhibit 99.2
Signature date
04 Mar 2026
CIK 0002011995

AP DLF Offshore Investor, LP

Relationship
10%+ Owner
Address
9 W. 57TH STREET, 41ST FLOOR, NEW YORK
Signature
see signatures attached as Exhibit 99.2
Signature date
04 Mar 2026
CIK 0002011937

Apollo Principal Holdings B GP, LLC

Relationship
10%+ Owner
Address
9 W. 57TH STREET, 41ST FLOOR, NEW YORK
Signature
see signatures attached as Exhibit 99.2
Signature date
04 Mar 2026
CIK 0002012136

APO Corp.

Relationship
10%+ Owner
Address
9 W. 57TH STREET, 41ST FLOOR, NEW YORK
Signature
see signatures attached as Exhibit 99.2
Signature date
04 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

No ticker transaction

Common shares of beneficial interest

Purchase

Transaction value
Shares
+625,816
Change %
+6%
Price
$27.96
Shares after
11,080,958
Date
02 Mar 2026
Ownership
See Footnote
Footnotes
F1
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

See Exhibit 99.1.

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