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1,125 hedge funds and large institutions have $42.1B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 184 funds opening new positions, 400 increasing their positions, 372 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

163% more first-time investments, than exits

New positions opened: 184 | Existing positions closed: 70

78% more call options, than puts

Call options by funds: $87.1M | Put options by funds: $49M

71% more funds holding in top 10

Funds holding in top 10: 1424 (+10)

13% more capital invested

Capital invested by funds: $37.4B → $42.1B (+$4.72B)

9% more funds holding

Funds holding: 1,0311,125 (+94)

2.9% more ownership

Funds ownership: 86.33%89.22% (+2.9%)

8% more repeat investments, than reductions

Existing positions increased: 400 | Existing positions reduced: 372

Holders
1,125
Holders Change
+94
Holders Change %
+9.12%
% of All Funds
13.69%
Holding in Top 10
24
Holding in Top 10 Change
+10
Holding in Top 10 Change %
+71.43%
% of All Funds
0.29%
New
184
Increased
400
Reduced
372
Closed
70
Calls
$87.1M
Puts
$49M
Net Calls
+$38M
Net Calls Change
+$4.4M
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$5.58B -$866K -4,450 -0%
BlackRock
2
BlackRock
New York
$4.03B +$6.82M +35,053 +0.2%
State Street
3
State Street
Massachusetts
$2.04B +$37.5M +192,677 +2%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$1.62B -$377M -1,937,467 -20%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$1.2B +$7.33M +37,651 +0.6%
Fidelity Investments
6
Fidelity Investments
Massachusetts
$923M +$81M +416,204 +10%
Invesco
7
Invesco
Georgia
$879M -$35.4M -182,036 -4%
JP Morgan Chase
8
JP Morgan Chase
New York
$844M -$18.1M -93,235 -2%
Norges Bank
9
Norges Bank
Norway
$831M +$788M +4,049,351 New
Morgan Stanley
10
Morgan Stanley
New York
$814M +$21.4M +110,037 +3%
Flossbach Von Storch
11
Flossbach Von Storch
Germany
$784M +$7.11M +36,535 +1%
EIG
12
EdgePoint Investment Group
Ontario, Canada
$599M -$2.42M -12,430 -0.4%
Wellington Management Group
13
Wellington Management Group
Massachusetts
$576M +$411M +2,110,818 +303%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$490M -$15.3M -78,613 -3%
Northern Trust
15
Northern Trust
Illinois
$480M -$19.3M -99,029 -4%
Goldman Sachs
16
Goldman Sachs
New York
$480M -$141M -725,243 -24%
Dimensional Fund Advisors
17
Dimensional Fund Advisors
Texas
$420M +$2.23M +11,442 +0.6%
Principal Financial Group
18
Principal Financial Group
Iowa
$418M -$1.06M -5,446 -0.3%
Amundi
19
Amundi
France
$360M +$48.7M +250,486 +17%
Citadel Advisors
20
Citadel Advisors
Florida
$356M +$95.8M +492,353 +40%
Lazard Asset Management
21
Lazard Asset Management
New York
$318M -$214M -1,098,144 -42%
Bank of America
22
Bank of America
North Carolina
$315M -$29.9M -153,728 -9%
UBS AM
23
UBS AM
Illinois
$311M +$1.17M +5,992 +0.4%
ATO
24
Alecta Tjanstepension Omsesidigt
Sweden
$303M -$48.3M -248,000 -14%
Royal Bank of Canada
25
Royal Bank of Canada
Ontario, Canada
$297M +$6.24M +32,069 +2%