479 hedge funds and large institutions have $11.2B invested in Ametek in 2017 Q1 according to their latest regulatory filings, with 51 funds opening new positions, 166 increasing their positions, 186 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
479
Holders Change
-13
Holders Change %
-2.64%
% of All Funds
11.94%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.1%
New
51
Increased
166
Reduced
186
Closed
54
Calls
$5.15M
Puts
$1.73M
Net Calls
+$3.42M
Net Calls Change
+$4.78M
Name Holding Trade Value Shares
Change
Shares
Change %
SLF
476
Sun Life Financial
Ontario, Canada
$124 +$18 +1 +17%
Renaissance Technologies
477
Renaissance Technologies
New York
-$49.5M -1,019,150 Closed
Millennium Management
478
Millennium Management
New York
-$47.9M -984,698 Closed
SC
479
Samlyn Capital
New York
-$28.5M -585,800 Closed
Citadel Advisors
480
Citadel Advisors
Florida
-$28M -576,303 Closed
Bank of Montreal
481
Bank of Montreal
Ontario, Canada
-$18.6M -391,993 Closed
Marshall Wace
482
Marshall Wace
United Kingdom
-$19M -390,898 Closed
FHAM
483
Folger Hill Asset Management
New York
-$9.44M -194,200 Closed
CC
484
Carlson Capital
Texas
-$8.09M -166,529 Closed
CANY
485
Caxton Associates (New York)
New York
-$6.32M -130,000 Closed
SEC
486
Seven Eight Capital
New York
-$3.72M -76,431 Closed
JG
487
Jefferies Group
New York
-$2.92M -60,107 Closed
CG
488
Clinton Group
New York
-$1.4M -28,799 Closed
Susquehanna International Group
489
Susquehanna International Group
Pennsylvania
-$1.31M -27,021 Closed
SSA
490
Schonfeld Strategic Advisors
New York
-$1.22M -25,121 Closed
Capstone Investment Advisors
491
Capstone Investment Advisors
New York
-$1.21M -24,903 Closed
EMG
492
Ellington Management Group
Connecticut
-$1.12M -23,100 Closed
Verition Fund Management
493
Verition Fund Management
Connecticut
-$1.1M -22,642 Closed
IRF
494
IBM Retirement Fund
New York
-$1.1M -21,567 Closed
TG
495
TCW Group
California
-$1.02M -21,022 Closed
CIM
496
Calvert Investment Management
Maryland
-$891K -18,337 Closed
DDC
497
DF Dent & Co
Maryland
-$877K -18,042 Closed
PCM
498
Prelude Capital Management
New York
-$848K -17,444 Closed
DTL
499
Dynamic Technology Lab
Singapore
-$808K -16,629 Closed
BCM
500
Bayesian Capital Management
New York
-$702K -14,452 Closed