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1,003 hedge funds and large institutions have $36.8B invested in Ametek in 2025 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 394 increasing their positions, 362 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed

102% more call options, than puts

Call options by funds: $29.3M | Put options by funds: $14.5M

23% more first-time investments, than exits

New positions opened: 97 | Existing positions closed: 79

6% more capital invested

Capital invested by funds: $34.7B → $36.8B (+$2.08B)

9% more repeat investments, than reductions

Existing positions increased: 394 | Existing positions reduced: 362

0.74% more ownership

Funds ownership: 87.4%88.14% (+0.74%)

0% more funds holding

Funds holding: 9991,003 (+4)

0% more funds holding in top 10

Funds holding in top 10: 1515 (0)

Holders
1,003
Holders Change
+4
Holders Change %
+0.4%
% of All Funds
13.21%
Holding in Top 10
15
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.2%
New
97
Increased
394
Reduced
362
Closed
79
Calls
$29.3M
Puts
$14.5M
Net Calls
+$14.8M
Net Calls Change
-$20.4M
Name Holding Trade Value Shares
Change
Change in
Stake
Arrowstreet Capital
76
Arrowstreet Capital
Massachusetts
$76.5M +$35.1M +204,044 +93%
Zurich Cantonal Bank
77
Zurich Cantonal Bank
Switzerland
$75.7M +$51.4M +298,511 +249%
Millennium Management
78
Millennium Management
New York
$73.1M -$3.34M -19,434 -5%
MDSL
79
M.D. Sass LLC
New York
$72.5M +$5.83M +33,887 +9%
DMIC
80
Dixon Mitchell Investment Counsel
British Columbia, Canada
$72.1M +$1.94M +11,292 +3%
Westfield Capital Management
81
Westfield Capital Management
Massachusetts
$71.6M -$1.97M -11,462 -3%
Capital International Investors
82
Capital International Investors
California
$71.4M -$41.9M -243,656 -38%
GIM
83
Glenmede Investment Management
Pennsylvania
$69.7M +$66.2M +385,005 New
Two Sigma Advisers
84
Two Sigma Advisers
New York
$68.7M +$2.77M +16,100 +4%
SSA
85
Schonfeld Strategic Advisors
New York
$67.6M +$55.9M +324,788 +664%
Wells Fargo
86
Wells Fargo
California
$66.4M -$12.6M -73,448 -17%
Raymond James Financial
87
Raymond James Financial
Florida
$66M -$805K -4,679 -1%
FAM
88
Fenimore Asset Management
New York
$65.6M +$14.6M +85,062 +31%
MPIA
89
Mountain Pacific Investment Advisers
Idaho
$64.4M -$1.41M -8,216 -2%
California State Teachers Retirement System (CalSTRS)
90
California State Teachers Retirement System (CalSTRS)
California
$63.1M -$6.74M -39,154 -10%
Canada Life
91
Canada Life
Manitoba, Canada
$61.6M +$12.6M +73,302 +27%
Marshall Wace
92
Marshall Wace
United Kingdom
$59M +$56.1M +326,081 New
RMDI
93
R.M. Davis Inc
Maine
$58.1M -$979K -5,693 -2%
Canada Pension Plan Investment Board
94
Canada Pension Plan Investment Board
Ontario, Canada
$57.5M +$7.31M +42,493 +15%
Janus Henderson Group
95
Janus Henderson Group
United Kingdom
$56.1M +$6.65M +38,637 +14%
National Pension Service
96
National Pension Service
South Korea
$55.4M +$454K +2,640 +0.9%
KBC Group
97
KBC Group
Belgium
$52.4M +$1.56M +9,063 +3%
CRC
98
Curi RMB Capital
Illinois
$51.8M +$6.52M +37,918 +15%
Jennison Associates
99
Jennison Associates
New York
$51.6M -$5.83M -33,912 -11%
AllianceBernstein
100
AllianceBernstein
Tennessee
$51.1M +$1.21M +7,058 +3%

AME Hedge Fund Activity: Q2 2025 in Review

1,003 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Ametek (AME) for Q2 2025, worth a combined $36.8B — up 6% from $34.7B a quarter earlier.

Buyers outnumbered sellers: 97 funds opened new AME positions and 79 closed out — a net gain of 18 holders — while 394 added to existing stakes and 362 trimmed.

The largest buyer was BlackRock, adding an estimated $209M. The largest seller was Capital World Investors, cutting an estimated $201M.

  • 1,003 institutional investors held Ametek (AME) as of Q2 2025, up from 999 in Q1 2025.
  • Funds reported $36.8B of Ametek stock for Q2 2025, up 6% quarter-over-quarter.
  • 97 funds opened new Ametek positions in Q2 2025 and 79 closed out, a net change of +18 holders.
  • The largest Ametek buyer in Q2 2025 was BlackRock, an estimated $209M added.
  • The largest Ametek seller in Q2 2025 was Capital World Investors, an estimated $201M sold.

Based on aggregated 13F filings for Q2 2025.