SIMPLEX TRADING, LLC - ATRICURE INC ownership

ATRICURE INC's ticker is ATRC and the CUSIP is 04963C209. A total of 151 filers reported holding ATRICURE INC in Q4 2018. The put-call ratio across all filers is 0.04 and the average weighting 0.3%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of ATRICURE INC
ValueSharesWeighting
Q4 2022$22
-100.0%
500
-56.8%
0.00%
Q3 2022$45,000
+650.0%
1,158
+1329.6%
0.00%
Q3 2021$6,0000.0%810.0%0.00%
Q2 2021$6,000
-83.8%
81
-88.1%
0.00%
Q4 2020$37,000
-62.2%
679
-69.0%
0.00%
Q2 2020$98,000
+69.0%
2,188
-6.4%
0.00%
Q3 2019$58,000
-34.1%
2,337
-20.8%
0.00%
Q2 2019$88,000
+877.8%
2,950
+701.6%
0.00%
Q1 2019$9,000
-43.8%
368
-23.5%
0.00%
Q3 2018$16,000
-84.2%
481
-87.2%
0.00%
Q2 2018$101,000
+4950.0%
3,763
+3320.9%
0.00%
Q1 2018$2,000
-94.9%
110
-94.9%
0.00%
-100.0%
Q4 2017$39,000
+1200.0%
2,171
+1300.6%
0.00%
Q3 2017$3,0000.0%155
+23.0%
0.00%
Q2 2017$3,0001260.00%
Other shareholders
ATRICURE INC shareholders Q4 2018
NameSharesValueWeighting ↓
First Light Asset Management, LLC 1,489,407$65,236,0276.20%
Millrace Asset Group, Inc. 48,730$2,1342.64%
SECTORAL ASSET MANAGEMENT INC 236,532$10,360,1022.02%
DAFNA Capital Management LLC 125,529$5,498,1701.71%
NEXT CENTURY GROWTH INVESTORS LLC 313,724$13,741,1111.49%
PERKINS CAPITAL MANAGEMENT INC 29,350$1,2861.28%
Soleus Capital Management, L.P. 306,000$13,402,8001.24%
Hood River Capital Management LLC 847,342$37,113,5801.19%
Tamarack Advisers, LP 40,000$1,752,0001.14%
EMERALD MUTUAL FUND ADVISERS TRUST 411,400$18,019,3201.09%
View complete list of ATRICURE INC shareholders