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AMTMAMTM
6 quarters

Position history for FRONTIER CAPITAL MANAGEMENT CO LLCFRONTIER CAPITAL MANAGEMENT CO LLC's holdings in AMENTUM HOLDINGS, INC. COM

FRONTIER CAPITAL MANAGEMENT CO LLC holds 4.1M shares of AMTM (AMENTUM HOLDINGS, INC. COM), worth $85.7M as of 2026-Q2. The position was decreased (-15.9% shares). AMTM represents 0.8% of FRONTIER CAPITAL MANAGEMENT CO LLC's portfolio.

Current Value

$85.7M

Current Shares

4.1M

Total Value Change

+$20.5M

Total Shares Change

+565,239

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
4.1M
-15.9%
$85.7M0.8%$20.67
0
2026-Q1
Decreased
4.9M
-14.6%
$128.6M1.3%$26.08
0
2025-Q4
Increased
5.8M
+11.0%
$167.4M1.8%$29.00
53
2025-Q3
Decreased
5.2M
-4.7%
$124.6M1.1%$23.95
0
2025-Q2
Increased
5.5M
+52.6%
$128.9M1.2%$23.61
66
2025-Q1
New
3.6M
-
$65.1M0.7%$18.20
58

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

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