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AtriCure

Name Holding Trade Value Shares
Change
Change in
Stake
RIM
1
RS Investment Management
California
$60.1M +$9.61M +466,200 +21%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$56.6M +$16.6M +807,417 +47%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$41.2M +$340K +16,504 +0.9%
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$29.3M +$7.08M +343,601 +36%
Vanguard Group
5
Vanguard Group
Pennsylvania
$23.2M +$1.26M +61,187 +6%
FLAM
6
First Light Asset Management
Minnesota
$20.7M +$478K +23,195 +3%
BC
7
Broadfin Capital
New York
$18M +$8.24M +400,000 +99%
EMFAT
8
Emerald Mutual Fund Advisers Trust
Pennsylvania
$18M +$4M +194,135 +32%
EA
9
Emerald Advisers
Pennsylvania
$17.8M +$3.77M +183,065 +30%
BFA
10
BlackRock Fund Advisors
California
$17.1M +$543K +26,360 +4%
CCI
11
Columbus Circle Investors
$15.8M -$5.88M -285,491 -29%
TA
12
Tamarack Advisers
California
$15.7M +$14.4M +700,000 New
CAM
13
Cortina Asset Management
Wisconsin
$15.2M +$731K +35,478 +6%
Wells Fargo
14
Wells Fargo
California
$14.8M +$2.29M +110,890 +20%
NC
15
Northpointe Capital
Michigan
$11.1M
DCM
16
DAFNA Capital Management
California
$10.9M
BIT
17
BlackRock Institutional Trust
California
$10.2M -$263K -12,751 -3%
State Street
18
State Street
Massachusetts
$10M +$177K +8,586 +2%
WA
19
Wasatch Advisors
Utah
$9.57M +$392 +19 +0%
RA
20
Royce & Associates
New York
$9.54M -$429K -20,800 -5%
WRF
21
Waddell & Reed Financial
Kansas
$9.07M -$861K -41,800 -9%
William Blair Investment Management
22
William Blair Investment Management
Illinois
$8.54M +$7.84M +380,408 New
DCM
23
Driehaus Capital Management
Illinois
$8.26M -$9.15M -444,060 -55%
NCGI
24
Next Century Growth Investors
Minnesota
$7.85M -$135K -6,568 -2%
Northern Trust
25
Northern Trust
Illinois
$7.72M -$451K -21,905 -6%