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AtriCure
ATRC

Overview Fund Activity

110 hedge funds and large institutions have $539M invested in AtriCure in 2015 Q1 according to their latest regulatory filings, with 12 funds opening new positions, 47 increasing their positions, 30 reducing their positions, and 7 closing their positions.

Holders
110
Holders Change
+5
Holders Change %
+4.76%
% of All Funds
2.93%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.11%
New
12
Increased
47
Reduced
30
Closed
7
Calls
$245K
Puts
$41K
Net Calls
+$204K
Net Calls Change
+$204K

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$38.1M
2
RA
2
Royce & Associates
New York
$7.44M
3
TG
3
TCW Group
California
$5.76M
4
GIM
4
Granahan Investment Management
Massachusetts
$10.8M
5
EI
5
EAM Investors
California
$3.1M

Top Sellers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$36.9M
2
PI
2
Putnam Investments
Massachusetts
$1.24M
3
BC
3
Broadfin Capital
New York
$10.9M
4
TAM
4
THB Asset Management
Connecticut
$12.6M
5
THP
5
Telegraph Hill Partners
California
$994K
Name Market Value Shares Shares
Change 		Shares
Change %
Wellington Management Group
1
Wellington Management Group
Massachusetts
$38.5M 1,878,245 +57,154 +3%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$38.1M 1,860,000 +731,000 +65%
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$36.9M 1,800,000 -376,019 -17%
RIM
4
RS Investment Management
California
$24.1M 1,174,830 +120,592 +11%
NC
5
Northpointe Capital
Michigan
$19.7M 959,925 +21,709 +2%
CAM
6
Cortina Asset Management
Wisconsin
$18.9M 921,948 -28,744 -3%
Millennium Management
7
Millennium Management
New York
$16.9M 826,952 +5,838 +0.7%
Vanguard Group
8
Vanguard Group
Pennsylvania
$16.9M 825,836 +85,138 +11%
TCM
9
Tamarack Capital Management
California
$16.4M 800,000 +115,000 +17%
BFA
10
BlackRock Fund Advisors
California
$15.6M 761,243 -1,105 -0.1%
FLAM
11
First Light Asset Management
Minnesota
$14.5M 705,570 +69,400 +11%
DCM
12
DAFNA Capital Management
California
$13.1M 637,431 -23,900 -4%
WA
13
Wasatch Advisors
Utah
$12.6M 615,887 -11 -0%
TAM
14
THB Asset Management
Connecticut
$12.6M 614,867 -271,073 -31%
PCM
15
Palisade Capital Management
New Jersey
$11.7M 569,332 +13,664 +2%
BC
16
Broadfin Capital
New York
$10.9M 533,354 -292,548 -35%
GIM
17
Granahan Investment Management
Massachusetts
$10.8M 525,104 +157,768 +43%
Massachusetts Financial Services
18
Massachusetts Financial Services
Massachusetts
$10.4M 509,839 +5,247 +1%
BA
19
BlackRock Advisors
Delaware
$9.11M 444,362 +2,790 +0.6%
Wells Fargo
20
Wells Fargo
California
$8.71M 424,977 +17,913 +4%
State Street
21
State Street
Massachusetts
$8.13M 397,014 +20,718 +6%
NCGI
22
Next Century Growth Investors
Minnesota
$8.08M 394,338 +2,973 +0.8%
EA
23
Emerald Advisers
Pennsylvania
$7.51M 367,186 +69,360 +23%
RA
24
Royce & Associates
New York
$7.44M 363,000 +363,000 New
Deutsche Bank
25
Deutsche Bank
Germany
$7.03M 343,357 +27,837 +9%
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