Info
Ownership

Apollo Principal Holdings B, L.P. - Insider Trading & Ownership

Location: 9 West 57 Th Street, 41 St Floor, New York, NY
Summary: The estimated value of insider holdings of Apollo Principal Holdings B, L.P. is at least $209M dollars as of July 30, 2025. Apollo Principal Holdings B, L.P. is the 10%+ Owner of Diameter Credit Co and owns shares of Diameter Credit Co stock worth about $209M.
Signature: see signatures attached as Exhibit 99.2
All Insider Reports: All Insider Reports

Ownership of Apollo Principal Holdings B, L.P.

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
/stock/0001916099-diameter-credit-co	Diameter Credit Co	10%+ Owner	$209M	+$42M	+25.1%	Jul 28, 2025
NONE	Apollo S3 Private Markets Fund	10%+ Owner				Oct 11, 2024

Showing 1 to 2 of 2 entries

Insider Transactions Reported by Apollo Principal Holdings B, L.P.:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership
	Diameter Credit Co	Common shares of beneficial interest	Purchase	+11.2%	$21M	27.32	+769K	7.66M	7/28/2025	See Footnote
	Diameter Credit Co	Common shares of beneficial interest	Purchase	+12.4%	$21M	27.55	+762K	6.89M	6/9/2025	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+11.8%	$17.5M	27.08	+646K	6.13M	4/21/2025	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+10.3%	$14M	27.33	+512K	5.49M	2/24/2025	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+18.5%	$21M	26.99	+778K	4.97M	12/16/2024	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+19.6%	$18.4M	26.72	+688K	4.2M	11/12/2024	See Footnote
NONE	Apollo S3 Private Markets Fund	Class I Shares of Beneficial Ownership	Purchase		$80.4M	25.00	+3.22M	2M	10/11/2024	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+27.9%	$20.1M	26.29	+766K	3.51M	8/26/2024	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+16.3%	$10M	26.04^*	+384K	2.74M	7/29/2024	See Footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+32.1%	$14.9M	26.01^*	+573K	2.36M	6/17/2024	See footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+48.5%	$14.9M	25.54^*	+583K	1.79M	4/22/2024	see footnote
NONE	Diameter Credit Co	Common shares of beneficial interest	Purchase	+27.4%	$6.6M	25.55	+258K	1.2M	3/11/2024	See Footnote

Showing 1 to 12 of 12 entries

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