Primecap Management
AMTM

Primecap Management’s Amentum Holdings, Inc. AMTM Stock Holding History

Primecap Management’s Portfolio AMTM Stock Details AMTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2025
Q2 		$284M Buy
12,030,656
+1,969,067
+20% +$46.5M 0.23% 84
2025
Q1 		$183M Buy
10,061,589
+3,647,210
+57% +$66.4M 0.15% 100
2024
Q4 		$135M Buy
6,414,379
+1,143,097
+22% +$24M 0.1% 125
2024
Q3 		$170M Buy
+5,271,282
New +$170M 0.13% 109