Blackstone Group Inc.

SEC CIK: 0001393818
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

AMTM holding history

Amentum Holdings, Inc. in every 13F filed by Blackstone Group Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AMTM overview All 13F holders of AMTM Full Q2 2026 holdings

Shares (Q2 2026): 31,027
Value: $641.3K
% of portfolio: <0.1%
Quarters held: 3; Since Q3 2025

Holdings of AMTM by Blackstone Group Inc., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	31,027	$641.3K	<0.1%	+31,027	New	Holders
Q1 2026	0	$0	0.0%	−99,643−100.0%	Sold out	Holders
Q4 2025	99,643	$2.89M	<0.1%	+50,537+102.9%	Added	Holders
Q3 2025	49,106	$1.18M	<0.1%	+49,106	New	Holders