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AtriCure
ATRC

Overview Fund Activity

118 hedge funds and large institutions have $599M invested in AtriCure in 2015 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 41 increasing their positions, 52 reducing their positions, and 11 closing their positions.

Holders
118
Holders Change
-3
Holders Change %
-2.48%
% of All Funds
3.1%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.16%
New
9
Increased
41
Reduced
52
Closed
11
Calls
$3K
Puts
–
Net Calls
+$3K
Net Calls Change
-$107K

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$56.6M
2
RIM
2
RS Investment Management
California
$60.1M
3
BC
3
Broadfin Capital
New York
$18M
4
William Blair Investment Management
4
William Blair Investment Management
Illinois
$8.54M
5
Adage Capital Partners
5
Adage Capital Partners
Massachusetts
$29.3M

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$4.75M
2
DCM
2
Driehaus Capital Management
Illinois
$8.26M
3
GIM
3
Granahan Investment Management
Massachusetts
$5.02M
4
CCI
4
Columbus Circle Investors
$15.8M
5
Lord, Abbett & Co
5
Lord, Abbett & Co
New Jersey
$4.67M
Name Market Value Shares Shares
Change 		Shares
Change %
RIM
1
RS Investment Management
California
$60.1M 2,679,551 +466,200 +21%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$56.6M 2,521,022 +807,417 +47%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$41.2M 1,836,504 +16,504 +0.9%
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$29.3M 1,306,488 +343,601 +36%
Vanguard Group
5
Vanguard Group
Pennsylvania
$23.2M 1,035,530 +61,187 +6%
FLAM
6
First Light Asset Management
Minnesota
$20.7M 922,557 +23,195 +3%
BC
7
Broadfin Capital
New York
$18M 803,519 +400,000 +99%
EMFAT
8
Emerald Mutual Fund Advisers Trust
Pennsylvania
$18M 800,554 +194,135 +32%
EA
9
Emerald Advisers
Pennsylvania
$17.8M 795,104 +183,065 +30%
BFA
10
BlackRock Fund Advisors
California
$17.1M 764,088 +26,360 +4%
CCI
11
Columbus Circle Investors
$15.8M 702,882 -285,491 -29%
TA
12
Tamarack Advisers
California
$15.7M 700,000 +700,000 New
CAM
13
Cortina Asset Management
Wisconsin
$15.2M 679,166 +35,478 +6%
Wells Fargo
14
Wells Fargo
California
$14.8M 659,070 +110,890 +20%
NC
15
Northpointe Capital
Michigan
$11.1M 507,795 – –
DCM
16
DAFNA Capital Management
California
$11M 487,946 – –
BIT
17
BlackRock Institutional Trust
California
$10.2M 454,202 -12,751 -3%
State Street
18
State Street
Massachusetts
$10M 447,223 +8,586 +2%
WA
19
Wasatch Advisors
Utah
$9.57M 426,616 +19 +0%
RA
20
Royce & Associates
New York
$9.54M 425,200 -20,800 -5%
WRF
21
Waddell & Reed Financial
Kansas
$9.07M 404,000 -41,800 -9%
William Blair Investment Management
22
William Blair Investment Management
Illinois
$8.54M 380,408 +380,408 New
DCM
23
Driehaus Capital Management
Illinois
$8.26M 368,138 -444,060 -55%
NCGI
24
Next Century Growth Investors
Minnesota
$7.85M 349,873 -6,568 -2%
Northern Trust
25
Northern Trust
Illinois
$7.72M 344,078 -21,905 -6%
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