ESSEX INVESTMENT MANAGEMENT CO LLC - ATRICURE INC ownership

ATRICURE INC's ticker is ATRC and the CUSIP is 04963C209. A total of 113 filers reported holding ATRICURE INC in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.3%.

Quarter-by-quarter ownership
ESSEX INVESTMENT MANAGEMENT CO LLC ownership history of ATRICURE INC
ValueSharesWeighting
Q3 2023$2,317,327
-11.9%
52,907
-0.7%
0.38%
+3.0%
Q2 2023$2,629,851
+39.6%
53,279
+17.3%
0.37%
+33.9%
Q1 2023$1,883,322
-29.8%
45,436
-65.3%
0.27%
-22.4%
Q1 2018$2,683,000
+1.2%
130,754
-10.0%
0.35%
+1.1%
Q4 2017$2,650,000
-16.5%
145,258
+2.4%
0.35%
-19.0%
Q3 2017$3,172,000
-8.4%
141,798
-0.7%
0.43%
-12.9%
Q2 2017$3,462,000
+51.7%
142,774
+19.8%
0.50%
+38.3%
Q1 2017$2,282,000
+7.0%
119,189
+9.4%
0.36%
+2.0%
Q4 2016$2,132,000
+81.1%
108,928
+46.4%
0.35%
+84.7%
Q3 2016$1,177,000
+5.4%
74,408
-5.9%
0.19%
+2.2%
Q2 2016$1,117,000
-8.1%
79,076
+9.4%
0.19%
-10.6%
Q1 2016$1,216,000
-31.8%
72,258
-9.0%
0.21%
-25.4%
Q4 2015$1,783,000
-2.4%
79,438
-4.7%
0.28%
-7.0%
Q3 2015$1,826,000
-31.9%
83,352
-23.4%
0.30%
-25.9%
Q2 2015$2,681,000
+19.9%
108,807
-0.3%
0.40%
+29.4%
Q1 2015$2,236,000
+5.9%
109,110
+3.1%
0.31%
+1.6%
Q4 2014$2,112,000
+16.6%
105,789
-14.1%
0.31%
+11.2%
Q3 2014$1,812,000
-23.9%
123,115
-5.0%
0.28%
-21.1%
Q2 2014$2,382,000
-15.9%
129,588
-13.9%
0.35%
-14.8%
Q1 2014$2,832,000
+72.5%
150,566
+71.3%
0.41%
+77.6%
Q4 2013$1,642,000
+80.0%
87,875
+5.8%
0.23%
+68.1%
Q3 2013$912,000
+6.2%
83,030
-8.2%
0.14%
-9.2%
Q2 2013$859,00090,4110.15%
Other shareholders
ATRICURE INC shareholders Q2 2014
NameSharesValueWeighting ↓
First Light Asset Management, LLC 1,364,812$89,627,0007.90%
SECTORAL ASSET MANAGEMENT INC 218,164$14,327,0002.54%
Tamarack Advisers, LP 65,000$4,269,0002.02%
PERKINS CAPITAL MANAGEMENT INC 34,350$2,256,0001.85%
DAFNA Capital Management LLC 72,029$4,730,0001.23%
EMERALD ADVISERS, LLC 436,379$28,657,0001.09%
EMERALD MUTUAL FUND ADVISERS TRUST 358,666$23,554,0001.04%
Midwest Wealth Management Inc. 23,028$1,512,0000.92%
PURA VIDA INVESTMENTS, LLC 336,615$22,106,0000.72%
FRED ALGER MANAGEMENT, LLC 2,759,355$181,207,0000.58%
View complete list of ATRICURE INC shareholders