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AtriCure

Name Holding Trade Value Shares
Change
Change in
Stake
RIM
1
RS Investment Management
California
$48.5M +$12.6M +503,141 +29%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$39.9M +$3.5M +140,000 +8%
Wellington Management Group
3
Wellington Management Group
Massachusetts
$37.5M -$1.23M -49,210 -3%
CCI
4
Columbus Circle Investors
$21.7M -$308K -12,319 -1%
Vanguard Group
5
Vanguard Group
Pennsylvania
$21.3M +$1.49M +59,676 +7%
Adage Capital Partners
6
Adage Capital Partners
Massachusetts
$21.1M -$4.68M -187,113 -16%
FLAM
7
First Light Asset Management
Minnesota
$19.7M +$3.16M +126,501 +16%
Millennium Management
8
Millennium Management
New York
$18.7M +$2.92M +116,668 +16%
TCM
9
Tamarack Capital Management
California
$18.1M -$1.5M -60,000 -7%
DCM
10
Driehaus Capital Management
Illinois
$17.8M +$3.64M +145,678 +22%
BFA
11
BlackRock Fund Advisors
California
$16.2M -$136K -5,438 -0.7%
CAM
12
Cortina Asset Management
Wisconsin
$14.1M -$6.4M -256,154 -28%
EA
13
Emerald Advisers
Pennsylvania
$13.4M +$1.26M +50,391 +9%
EMFAT
14
Emerald Mutual Fund Advisers Trust
Pennsylvania
$13.3M +$3.78M +151,207 +33%
Wells Fargo
15
Wells Fargo
California
$12M +$1.29M +51,740 +10%
GIM
16
Granahan Investment Management
Massachusetts
$11.7M -$27.2K -1,087 -0.2%
NC
17
Northpointe Capital
Michigan
$11.1M -$3.95M -157,888 -24%
DCM
18
DAFNA Capital Management
California
$10.7M -$1.52M -60,665 -11%
BIT
19
BlackRock Institutional Trust
California
$10.2M +$3.27M +130,712 +39%
RA
20
Royce & Associates
New York
$9.77M +$1.05M +42,000 +10%
WRF
21
Waddell & Reed Financial
Kansas
$9.77M +$445K +17,800 +4%
State Street
22
State Street
Massachusetts
$9.61M +$174K +6,962 +2%
Lord, Abbett & Co
23
Lord, Abbett & Co
New Jersey
$9.37M -$632K -25,303 -6%
WA
24
Wasatch Advisors
Utah
$9.35M -$2.4M -95,907 -18%
BC
25
Broadfin Capital
New York
$8.84M -$2M -79,835 -17%