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Security record · archived quarter

AMTM

Amentum Holdings, Inc. · Industrials · Aerospace & Defense

20.26 +1.0% mkt cap $4.95B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
114Tracked holders
+3Δ holders
114.62MShares held
$3.32BReported value
+4New positions
−0Exits
Stable Conviction score 42/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +2.7% · share flow -0.9% · net new positions +3.5%formula
Ownership fragmentation — more holders, smaller aggregate stake

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 109 -3 117.16M $2.42B +7 −9
Q1 2026 114 +1 111.17M $2.90B +6 −6
Q4 2025 114 +3 114.62M $3.32B +4
Q3 2025 18 0 67.20M $1.61B +1 −2
Q2 2025 16 +3 69.96M $1.65B +4 −1
Q1 2025 10 -3 25.91M $471.64M +2 −5
Q4 2024 13 -2 20.67M $434.75M +2 −4
Q3 2024 14 +14 12.37M $393.08M +14
Holder count
Who holds it · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
2 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
3 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
4 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
5 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
6 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
7 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
8 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
9 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
10 Invesco Ltd. 21.83M $633.19M 0.1% n/c 1 SEC ↗
11 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
12 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
13 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
14 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
15 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
16 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
17 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
18 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
19 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
20 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
21 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
22 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
23 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
24 BlackRock (passive) 17.46M -3.0% $506.31M 0.0% ▼ Trim 3 SEC ↗
25 The Vanguard Group (passive) 15.41M -0.9% $446.94M 0.0% ▼ Trim 3 SEC ↗
26 The Vanguard Group (passive) 15.41M -0.9% $446.94M 0.0% ▼ Trim 3 SEC ↗
27 The Vanguard Group (passive) 15.41M -0.9% $446.94M 0.0% ▼ Trim 3 SEC ↗
28 The Vanguard Group (passive) 15.41M -0.9% $446.94M 0.0% ▼ Trim 3 SEC ↗
29 The Vanguard Group (passive) 15.41M -0.9% $446.94M 0.0% ▼ Trim 3 SEC ↗
30 PRIMECAP Management 12.13M +1.8% $351.68M 0.3% ▲ Add 6 SEC ↗
31 Fidelity (FMR) 6.71M +7.6% $194.51M 0.0% ▲ Add 3 SEC ↗
32 Fidelity (FMR) 6.71M +7.6% $194.51M 0.0% ▲ Add 3 SEC ↗
33 Fidelity (FMR) 6.71M +7.6% $194.51M 0.0% ▲ Add 3 SEC ↗
34 Fidelity (FMR) 6.71M +7.6% $194.51M 0.0% ▲ Add 3 SEC ↗
35 State Street Global Advisors (passive) 5.06M -25.9% $146.79M 0.0% ▼ Trim 5 SEC ↗
36 Focus Partners Wealth 2.79M $81.04M 0.1% n/c 1 SEC ↗
37 Geode Capital Management (passive) 2.66M +0.2% $77.15M 0.0% ▲ Add 6 SEC ↗
38 Geode Capital Management (passive) 2.66M +0.2% $77.15M 0.0% ▲ Add 6 SEC ↗
39 Norges Bank (passive) 2.29M New $66.53M 0.0% New 1 SEC ↗
40 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
41 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
42 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
43 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
44 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
45 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
46 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
47 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
48 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
49 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
50 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
51 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
52 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
53 Morgan Stanley 2.08M +14.9% $60.19M 0.0% ▲ Add 2 SEC ↗
54 MIRAE ASSET GLOBAL ETFS HOLDINGS… 1.96M $56.90M 0.1% n/c 1 SEC ↗
55 MIRAE ASSET GLOBAL ETFS HOLDINGS… 1.96M $56.90M 0.1% n/c 1 SEC ↗
56 Charles Schwab Investment… 1.95M $56.61M 0.0% n/c 1 SEC ↗
57 Dimensional Fund Advisors Lp 1.83M $53.16M 0.0% n/c 1 SEC ↗
58 Dimensional Fund Advisors Lp 1.83M $53.16M 0.0% n/c 1 SEC ↗
59 Dimensional Fund Advisors Lp 1.83M $53.16M 0.0% n/c 1 SEC ↗
60 Dimensional Fund Advisors Lp 1.83M $53.16M 0.0% n/c 1 SEC ↗
61 Dimensional Fund Advisors Lp 1.83M $53.16M 0.0% n/c 1 SEC ↗
62 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
63 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
64 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
65 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
66 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
67 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
68 AQR Capital Management 1.45M +778.9% $42.11M 0.0% ▲ Add 3 SEC ↗
69 FIL Ltd 1.43M $41.45M 0.0% n/c 1 SEC ↗
70 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
71 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
72 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
73 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
74 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
75 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
76 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
77 Bank Of America Corp /De/ 1.16M $33.57M 0.0% n/c 1 SEC ↗
78 Voya Investment Management Llc 1.15M $33.28M 0.0% n/c 1 SEC ↗
79 Voya Investment Management Llc 1.15M $33.28M 0.0% n/c 1 SEC ↗
80 Loomis Sayles & Co L P 1.12M $32.45M 0.0% n/c 1 SEC ↗
81 Loomis Sayles & Co L P 1.12M $32.45M 0.0% n/c 1 SEC ↗
82 Northern Trust Corp 952.98K $27.64M 0.0% n/c 1 SEC ↗
83 Northern Trust Corp 952.98K $27.64M 0.0% n/c 1 SEC ↗
84 Northern Trust Corp 952.98K $27.64M 0.0% n/c 1 SEC ↗
85 Northern Trust Corp 952.98K $27.64M 0.0% n/c 1 SEC ↗
86 Northern Trust Corp 952.98K $27.64M 0.0% n/c 1 SEC ↗
87 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
88 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
89 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
90 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
91 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
92 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
93 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
94 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
95 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
96 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
97 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
98 Bank of New York Mellon Corp 922.10K $26.74M 0.0% n/c 1 SEC ↗
99 Nuveen, LLC 813.77K $23.60M 0.0% n/c 1 SEC ↗
100 Nuveen, LLC 813.77K $23.60M 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Norges Bank $66.53M 0.0%

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 482 holders, 210.87M shares, $5.10B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q4 2025 · Methodology · Get this via the API