Apollo Principal Holdings B, L.P. - Jun 9, 2025 Form 4 Insider Report for Diameter Credit Co

Role: 10%+ Owner
Signature: see signatures attached as Exhibit 99.2
Transactions as of: Jun 9, 2025
Transactions value $: $20,999,969
Form type: 4
Date filed: 6/11/2025, 05:35 PM
Previous filing: Apr 23, 2025
SEC: View on sec.gov

Reporting Owners (4)

Name	Relationship	Address	Signature	Signature date	CIK
Apollo Principal Holdings B, L.P.	10%+ Owner	9 W. 57TH STREET, 41ST FLOOR, NEW YORK	see signatures attached as Exhibit 99.2	2025-06-11	0001968376
AP DLF Offshore Investor, LP	10%+ Owner	9 W. 57TH STREET, 41ST FLOOR, NEW YORK	see signatures attached as Exhibit 99.2	2025-06-11	0002011995
Apollo Principal Holdings B GP, LLC	10%+ Owner	9 W. 57TH STREET, 41ST FLOOR, NEW YORK	see signatures attached as Exhibit 99.2	2025-06-11	0002011937
APO Corp.	10%+ Owner	9 W. 57TH STREET, 41ST FLOOR, NEW YORK	see signatures attached as Exhibit 99.2	2025-06-11	0002012136

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction		Common shares of beneficial interest	Purchase	$21M	+762K	+12.43%	$27.55	6.89M	Jun 9, 2025	See Footnote	F1

Showing 1 to 1 of 1 entries

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	See Exhibit 99.1.