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AMTM

Amentum Holdings

419 hedge funds and large institutions have $3.49B invested in Amentum Holdings in 2025 Q1 according to their latest regulatory filings, with 73 funds opening new positions, 112 increasing their positions, 152 reducing their positions, and 95 closing their positions.

New
Increased
Maintained
Reduced
Closed

49% more call options, than puts

Call options by funds: $62.3M | Put options by funds: $41.7M

10.84% more ownership

Funds ownership: 67.97%78.8% (+11%)

0% more capital invested

Capital invested by funds: $3.48B → $3.49B (+$8.92M)

0% more funds holding in top 10

Funds holding in top 10: 55 (0)

7% less funds holding

Funds holding: 451419 (-32)

23% less first-time investments, than exits

New positions opened: 73 | Existing positions closed: 95

26% less repeat investments, than reductions

Existing positions increased: 112 | Existing positions reduced: 152

Holders
419
Holders Change
-32
Holders Change %
-7.1%
% of All Funds
5.62%
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.07%
New
73
Increased
112
Reduced
152
Closed
95
Calls
$62.3M
Puts
$41.7M
Net Calls
+$20.6M
Net Calls Change
-$29.2M
Name Holding Trade Value Shares
Change
Change in
Stake
ACB
51
Aristotle Capital Boston
Massachusetts
$8.13M -$618K -30,365 -6%
CI Investments Inc
52
CI Investments Inc
Ontario, Canada
$8.07M -$4.06M -199,534 -31%
Loomis, Sayles & Company
53
Loomis, Sayles & Company
Massachusetts
$7.93M +$8.87M +435,674 New
CP
54
CenterBook Partners
Connecticut
$7.55M +$6.99M +343,268 +481%
ACM
55
Arosa Capital Management
Florida
$7.41M +$1.16M +56,900 +16%
BGDI
56
BW Gestao de Investimentos
Brazil
$7.18M +$8.03M +394,400 New
Legal & General Group
57
Legal & General Group
United Kingdom
$7.12M -$5.85M -287,166 -42%
MIM
58
Monashee Investment Management
Massachusetts
$6.55M +$7.33M +360,000 New
Ameriprise
59
Ameriprise
Minnesota
$6.04M -$563K -27,630 -8%
RhumbLine Advisers
60
RhumbLine Advisers
Massachusetts
$5.64M +$304K +14,919 +5%
CP
61
Castalian Partners
Minnesota
$5.54M -$14.2M -695,500 -70%
VA
62
Vident Advisory
Georgia
$5.33M +$5.65M +277,594 +1,819%
Verition Fund Management
63
Verition Fund Management
Connecticut
$5.29M -$615K -30,210 -9%
N
64
Nuveen
North Carolina
$5.24M -$328K -16,084 -5%
UBS AM
65
UBS AM
Illinois
$4.97M -$9.19K -451 -0.2%
Swiss National Bank
66
Swiss National Bank
Switzerland
$4.72M -$81.5K -4,000 -2%
TCM
67
Telos Capital Management
California
$4.66M -$221K -10,858 -4%
Comerica Bank
68
Comerica Bank
Texas
$4.53M +$4.07M +199,931 +410%
Russell Investments Group
69
Russell Investments Group
United Kingdom
$4.24M +$2.19M +107,395 +86%
TC
70
TwinBeech Capital
New York
$4.1M +$4.59M +225,438 New
SEI Investments
71
SEI Investments
Pennsylvania
$3.68M -$1.73M -85,163 -30%
HVP
72
Hudson Value Partners
Florida
$3.43M +$3.83M +188,283 New
California Public Employees Retirement System
73
California Public Employees Retirement System
California
$3.42M -$197K -9,671 -5%
Raymond James Financial
74
Raymond James Financial
Florida
$3.29M +$1.94M +95,010 +111%
GC
75
Grizzlyrock Capital
Illinois
$2.99M +$3.34M +164,226 New