381 hedge funds and large institutions have $8.91B invested in Ametek in 2013 Q2 according to their latest regulatory filings, with 381 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

Holders
381
Holders Change
+381
Holders Change %
% of All Funds
12.44%
Holding in Top 10
9
Holding in Top 10 Change
+9
Holding in Top 10 Change %
%
% of All Funds
0.29%
New
381
Increased
Reduced
Closed
Calls
$613K
Puts
$613K
Net Calls
Net Calls Change
Name Market Value Shares Shares
Change
Shares
Change %
CWAM
1
Columbia Wanger Asset Management
Illinois
$586M 13,863,589 +13,863,589 New
Vanguard Group
2
Vanguard Group
Pennsylvania
$533M 12,599,223 +12,599,223 New
Fidelity Investments
3
Fidelity Investments
Massachusetts
$451M 10,657,014 +10,657,014 New
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$359M 8,495,559 +8,495,559 New
State Street
5
State Street
Massachusetts
$330M 7,792,628 +7,792,628 New
Wellington Management Group
6
Wellington Management Group
Massachusetts
$311M 7,356,312 +7,356,312 New
BIT
7
BlackRock Institutional Trust
California
$271M 6,395,080 +6,395,080 New
BFA
8
BlackRock Fund Advisors
California
$251M 5,942,288 +5,942,288 New
UBS AM
9
UBS AM
Illinois
$250M 5,918,786 +5,918,786 New
VOYA Investment Management
10
VOYA Investment Management
Georgia
$228M 5,395,271 +5,395,271 New
Jennison Associates
11
Jennison Associates
New York
$216M 5,098,157 +5,098,157 New
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$198M 4,678,219 +4,678,219 New
TCM
13
Tran Capital Management
California
$198M 4,677,030 +4,677,030 New
Allianz Asset Management
14
Allianz Asset Management
Germany
$178M 4,210,088 +4,210,088 New
Artisan Partners
15
Artisan Partners
Wisconsin
$168M 3,983,380 +3,983,380 New
GI
16
GAMCO Investors
Connecticut
$146M 3,442,007 +3,442,007 New
Bank of New York Mellon
17
Bank of New York Mellon
New York
$133M 3,154,854 +3,154,854 New
Massachusetts Financial Services
18
Massachusetts Financial Services
Massachusetts
$126M 2,973,626 +2,973,626 New
Deutsche Bank
19
Deutsche Bank
Germany
$120M 2,831,490 +2,831,490 New
Northern Trust
20
Northern Trust
Illinois
$109M 2,567,851 +2,567,851 New
AllianceBernstein
21
AllianceBernstein
Tennessee
$105M 2,491,413 +2,491,413 New
Invesco
22
Invesco
Georgia
$99.5M 2,353,328 +2,353,328 New
GF
23
Gabelli Funds
New York
$97.1M 2,296,300 +2,296,300 New
Select Equity Group
24
Select Equity Group
New York
$93.6M 2,211,781 +2,211,781 New
William Blair & Company
25
William Blair & Company
Illinois
$93.3M 2,205,772 +2,205,772 New