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AMTMAMTM
8 quarters

Position history for PRIMECAP MANAGEMENT CO/CA/PRIMECAP MANAGEMENT CO/CA/'s holdings in AMENTUM HOLDINGS INC

PRIMECAP MANAGEMENT CO/CA/ holds 12.3M shares of AMTM (AMENTUM HOLDINGS INC), worth $253.9M as of 2026-Q2. The position was increased (+1.7% shares). AMTM represents 0.2% of PRIMECAP MANAGEMENT CO/CA/'s portfolio.

Current Value

$253.9M

Current Shares

12.3M

Total Value Change

+$83.9M

Total Shares Change

+7M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
12.3M
+1.7%
$253.9M0.2%$20.67
37
2026-Q1
Decreased
12.1M
-0.3%
$315.2M0.2%$26.08
0
2025-Q4
Increased
12.1M
+1.8%
$351.7M0.3%$29.00
38
2025-Q3
Decreased
11.9M
-0.9%
$285.5M0.2%$23.95
0
2025-Q2
Increased
12M
+19.6%
$284M0.2%$23.61
44
2025-Q1
Increased
10.1M
+56.9%
$183.1M0.2%$18.20
52
2024-Q4
Increased
6.4M
+21.7%
$134.9M0.1%$21.03
43
2024-Q3
New
5.3M
-
$170M0.1%$32.25
50

Other major holders of AMTM: Invesco Ltd., BlackRock, Inc.

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