AMTM

Amentum Holdings, Inc.
AMTM

Overview Fund Activity

453 hedge funds and large institutions have $4.73B invested in Amentum Holdings, Inc. in 2025 Q2 according to their latest regulatory filings, with 112 funds opening new positions, 227 increasing their positions, 99 reducing their positions, and 65 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
453
Holders Change
+40
Holders Change %
+9.69%
% of All Funds
6.08%
Holding in Top 10
9
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+80%
% of All Funds
0.12%
New
112
Increased
227
Reduced
99
Closed
65
Calls
$56.6M
Puts
$31.3M
Net Calls
+$25.2M
Net Calls Change
+$4.65M

Top Buyers

1
Millennium Management
Millennium Management
New York
$110M
2
Invesco
Invesco
Georgia
$462M
3
Primecap Management
Primecap Management
California
$284M
4
FCM
Frontier Capital Management
Massachusetts
$129M
5
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings
Hong Kong
$32.6M

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
$8.1M
2
Balyasny Asset Management
Balyasny Asset Management
Illinois
$0
3
CCPM
Cooper Creek Partners Management
New York
$0
4
VC
Voss Capital
Texas
$33.1M
5
UBS Group
UBS Group
Switzerland
$18.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
ACB
51
Aristotle Capital Boston
Massachusetts
$9.99M -$558K -23,636 -5%
Legal & General Group
52
Legal & General Group
United Kingdom
$9.55M +$324K +13,736 +4%
Comerica Bank
53
Comerica Bank
Texas
$8.54M +$2.67M +113,144 +45%
Point72 Asset Management
54
Point72 Asset Management
Connecticut
$8.28M +$8.28M +350,628 New
AQR Capital Management
55
AQR Capital Management
Connecticut
$8.27M +$8.27M +350,203 New
AllianceBernstein
56
AllianceBernstein
Tennessee
$8.23M +$6.93M +293,505 +532%
Citadel Advisors
57
Citadel Advisors
Florida
$8.1M -$61M -2,583,583 -88%
Ameriprise
58
Ameriprise
Minnesota
$8.09M +$266K +11,265 +3%
RA
59
Royce & Associates
New York
$7.91M +$7.91M +335,000 New
Russell Investments Group
60
Russell Investments Group
United Kingdom
$7.75M +$2.25M +95,249 +41%
Swiss National Bank
61
Swiss National Bank
Switzerland
$7.13M +$1.02M +42,991 +17%
RhumbLine Advisers
62
RhumbLine Advisers
Massachusetts
$6.78M -$540K -22,856 -7%
GC
63
Grizzlyrock Capital
Illinois
$5.98M +$2.1M +89,137 +54%
ACM
64
Arosa Capital Management
Florida
$5.96M -$3.65M -154,400 -38%
Goldman Sachs
65
Goldman Sachs
New York
$5.63M -$4.94M -209,331 -47%
California Public Employees Retirement System
66
California Public Employees Retirement System
California
$5.4M +$970K +41,073 +22%
TCM
67
Telos Capital Management
California
$5.21M -$837K -35,460 -14%
SEI Investments
68
SEI Investments
Pennsylvania
$5.17M +$401K +16,976 +8%
YIH
69
Y-Intercept (HK)
Hong Kong
$4.69M +$4.69M +198,726 New
Raymond James Financial
70
Raymond James Financial
Florida
$4.48M +$218K +9,238 +5%
HVP
71
Hudson Value Partners
Florida
$4.38M -$61K -2,582 -1%
CCB
72
Country Club Bank
Missouri
$4.04M +$1.84M +78,566 +84%
AC
73
AWH Capital
Texas
$3.9M +$2.9M +122,750 +289%
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$3.83M +$735K +31,123 +24%
Prudential Financial
75
Prudential Financial
New Jersey
$3.77M +$308K +12,254 +9%
1 2
3
4 5