Amentum (AMTM.US) Shareholder Detail - Holdings History & Trades | Longbridge

FC

Frontier Capital Management Co LLC

BuySellPriceUnit: Shares

Holdings History

Date
Latest	0.33%	-786.24K	1.69%	4.14M	06/30/2026
Q2 2026	0.32%	-786.24K	1.70%	4.14M	06/30/2026
Q1 2026	0.35%	-842.77K	2.02%	4.93M	03/31/2026
Q4 2025	0.23%	+570.30K	2.37%	5.77M	12/31/2025
Q3 2025	0.11%	-258.06K	2.14%	5.20M	09/30/2025
Q2 2025	0.77%	+1.88M	2.24%	5.46M	06/30/2025
Q1 2025	--	+3.58M	1.47%	3.58M	03/31/2025