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1,151 hedge funds and large institutions have $43B invested in Ametek in 2026 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 463 increasing their positions, 369 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed

114% more call options, than puts

Call options by funds: $99M | Put options by funds: $46.3M

51% more first-time investments, than exits

New positions opened: 136 | Existing positions closed: 90

25% more repeat investments, than reductions

Existing positions increased: 463 | Existing positions reduced: 369

2% more funds holding

Funds holding: 1,1261,151 (+25)

2% more capital invested

Capital invested by funds: $42.1B → $43B (+$859M)

1.54% less ownership

Funds ownership: 89.22%87.68% (-1.5%)

8% less funds holding in top 10

Funds holding in top 10: 2422 (-2)

Holders
1,151
Holders Change
+25
Holders Change %
+2.22%
% of All Funds
14.18%
Holding in Top 10
22
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-8.33%
% of All Funds
0.27%
New
136
Increased
463
Reduced
369
Closed
90
Calls
$99M
Puts
$46.3M
Net Calls
+$52.8M
Net Calls Change
+$14.7M
Name Holding Trade Value Shares
Change
Change in
Stake
NRS
426
Neville Rodie & Shaw
New York
$3.6M -$38.9K -175 -1%
CAU
427
Caxton Associates (UK)
$3.56M +$401K +1,804 +12%
MML Investors Services
428
MML Investors Services
Massachusetts
$3.51M +$944K +4,246 +35%
CIS
429
Capital International Sarl
California
$3.5M +$867K +3,901 +31%
BCI
430
Brinker Capital Investments
Pennsylvania
$3.44M -$280K -1,260 -7%
OC
431
Oppenheimer & Co
New York
$3.35M +$3.47M +15,628 New
IB
432
Intrust Bank
Kansas
$3.34M +$425K +1,911 +14%
Rockefeller Capital Management
433
Rockefeller Capital Management
New York
$3.31M +$569K +2,560 +20%
RAM
434
Robocap Asset Management
United Kingdom
$3.3M -$459K -2,064 -12%
TWIM
435
TIAA Wealth Investment Management
New York
$3.26M +$3.38M +15,210 New
PCM
436
Polymer Capital Management
New York
$3.24M +$524K +2,359 +19%
Rafferty Asset Management
437
Rafferty Asset Management
New York
$3.21M -$1.23M -5,520 -27%
AI
438
Atria Investments
North Carolina
$3.21M +$1.19M +5,344 +56%
HPG
439
Harvest Portfolios Group
Ontario, Canada
$3.18M +$538K +2,420 +19%
PWM
440
Perigon Wealth Management
California
$3.18M -$67.1K -302 -2%
KC
441
Kepler Cheuvreux
$3.17M -$1.53M -6,889 -32%
SIA
442
Sit Investment Associates
Minnesota
$3.15M
STA
443
Summit Trail Advisors
New York
$3.14M +$306K +1,379 +10%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
444
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$3.1M -$1.81M -8,142 -36%
AAM
445
Advisors Asset Management
Colorado
$3.08M +$527K +2,373 +20%
FDS
446
Freedom Day Solutions
Texas
$3.04M -$84.2K -379 -3%
AI
447
Atom Investors
Texas
$3.02M +$3.13M +14,089 New
MSU
448
Mizuho Securities USA
New York
$2.98M -$632K -2,845 -17%
MWA
449
Medallion Wealth Advisors
Connecticut
$2.98M
NB
450
Norinchukin Bank
Japan
$2.96M +$6.67K +30 +0.2%