413 hedge funds and large institutions have $9.86B invested in Ametek in 2013 Q3 according to their latest regulatory filings, with 61 funds opening new positions, 132 increasing their positions, 161 reducing their positions, and 26 closing their positions.

Holders
413
Holders Change
+32
Holders Change %
+8.4%
% of All Funds
13.4%
Holding in Top 10
10
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+11.11%
% of All Funds
0.32%
New
61
Increased
132
Reduced
161
Closed
26
Calls
$405K
Puts
$708K
Net Calls
-$303K
Net Calls Change
-$303K
Name Market Value Shares Shares
Change
Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$738M 16,040,995 +3,441,772 +27%
CWAM
2
Columbia Wanger Asset Management
Illinois
$632M 13,734,589 -129,000 -0.9%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$620M 13,470,092 +2,813,078 +26%
State Street
4
State Street
Massachusetts
$451M 9,804,379 +2,011,751 +26%
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$390M 8,476,634 -18,925 -0.2%
TCM
6
Tran Capital Management
California
$359M 7,803,569 +3,126,539 +67%
Wellington Management Group
7
Wellington Management Group
Massachusetts
$304M 6,609,039 -747,273 -10%
BIT
8
BlackRock Institutional Trust
California
$290M 6,302,081 -92,999 -1%
UBS AM
9
UBS AM
Illinois
$238M 5,172,730 -746,056 -13%
Jennison Associates
10
Jennison Associates
New York
$233M 5,061,681 -36,476 -0.7%
JPMorgan Chase & Co
11
JPMorgan Chase & Co
New York
$209M 4,532,642 -145,577 -3%
VOYA Investment Management
12
VOYA Investment Management
Georgia
$188M 4,076,560 -1,318,711 -24%
Artisan Partners
13
Artisan Partners
Wisconsin
$182M 3,958,083 -25,297 -0.6%
Massachusetts Financial Services
14
Massachusetts Financial Services
Massachusetts
$167M 3,630,777 +657,151 +22%
Allianz Asset Management
15
Allianz Asset Management
Germany
$162M 3,524,769 -685,319 -16%
GI
16
GAMCO Investors
Connecticut
$154M 3,355,349 -86,658 -3%
Bank of New York Mellon
17
Bank of New York Mellon
New York
$149M 3,227,053 +72,199 +2%
Northern Trust
18
Northern Trust
Illinois
$143M 3,099,234 +531,383 +21%
BFA
19
BlackRock Fund Advisors
California
$130M 2,835,060 -3,107,228 -52%
Deutsche Bank
20
Deutsche Bank
Germany
$130M 2,821,302 -10,188 -0.4%
BG
21
BlackRock Group
United Kingdom
$124M 2,689,171 +1,383,453 +106%
William Blair & Company
22
William Blair & Company
Illinois
$123M 2,679,042 +473,270 +21%
Westfield Capital Management
23
Westfield Capital Management
Massachusetts
$119M 2,577,644 +2,577,644 New
Invesco
24
Invesco
Georgia
$108M 2,342,064 -11,264 -0.5%
GF
25
Gabelli Funds
New York
$106M 2,293,000 -3,300 -0.1%