We are live on ! Find out more

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
Kayne Anderson Rudnick Investment Management
26
Kayne Anderson Rudnick Investment Management
California
$295M -$18.3M -94,261 -6%
D.E. Shaw & Co
27
D.E. Shaw & Co
New York
$293M +$108M +555,064 +64%
Charles Schwab
28
Charles Schwab
California
$285M +$2.85M +14,626 +1%
Legal & General Group
29
Legal & General Group
United Kingdom
$280M -$8.18M -42,047 -3%
Franklin Resources
30
Franklin Resources
California
$274M -$84.4M -433,681 -25%
Boston Partners
31
Boston Partners
Massachusetts
$269M -$6.53M -33,572 -3%
HSBC Holdings
32
HSBC Holdings
United Kingdom
$260M -$10.2M -52,354 -4%
Deutsche Bank
33
Deutsche Bank
Germany
$250M -$34.2M -175,932 -13%
Qube Research & Technologies (QRT)
34
Qube Research & Technologies (QRT)
United Kingdom
$230M -$19.4M -99,816 -8%
Man Group
35
Man Group
United Kingdom
$225M +$60.8M +312,489 +40%
Capital World Investors
36
Capital World Investors
California
$224M -$137M -703,489 -39%
Balyasny Asset Management
37
Balyasny Asset Management
Illinois
$220M +$176M +903,061 +539%
Two Sigma Investments
38
Two Sigma Investments
New York
$207M +$64.7M +332,715 +49%
GC
39
Giverny Capital
Quebec, Canada
$201M -$3.35M -17,218 -2%
Massachusetts Financial Services
40
Massachusetts Financial Services
Massachusetts
$197M +$18.4M +94,544 +11%
GF
41
Gabelli Funds
New York
$194M -$1.85M -9,494 -1%
Westfield Capital Management
42
Westfield Capital Management
Massachusetts
$185M +$105M +541,556 +151%
AQR Capital Management
43
AQR Capital Management
Connecticut
$184M -$1.29M -6,611 -0.7%
MIM
44
Meridiem Investment Management
United Kingdom
$182M -$6.21M -31,917 -3%
Neuberger Berman Group
45
Neuberger Berman Group
New York
$182M +$12.4M +63,632 +8%
MC
46
Maren Capital
Illinois
$180M +$2.21M +11,354 +1%
UBS Group
47
UBS Group
Switzerland
$178M -$70.1M -360,095 -29%
Nordea Investment Management
48
Nordea Investment Management
Sweden
$176M +$148M +760,410 +825%
Primecap Management
49
Primecap Management
California
$169M +$778K +4,000 +0.5%
SCM
50
Snyder Capital Management
California
$167M +$5.01M +25,758 +3%