SIMPLEX TRADING, LLC - ATRICURE INC ownership

ATRICURE INC's ticker is ATRC and the CUSIP is 04963C209. A total of 128 filers reported holding ATRICURE INC in Q3 2018. The put-call ratio across all filers is - 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 Q3 2018
NameSharesValueWeighting ↓
Hudson Executive Capital LP 3,710,000$82,992,00020.87%
First Light Asset Management, LLC 1,033,736$23,125,0007.32%
DAFNA Capital Management LLC 384,145$8,593,0005.34%
KOPP INVESTMENT ADVISORS LLC 114,599$2,564,0002.35%
PERKINS CAPITAL MANAGEMENT INC 92,950$2,079,0002.18%
Tamarack Advisers, LP 100,000$2,237,0001.37%
AlphaOne Investment Services, LLC 170,525$3,815,0001.01%
EMERALD ADVISERS, LLC 560,701$12,543,0000.51%
PEREGRINE CAPITAL MANAGEMENT LLC 924,740$20,686,0000.50%
EMERALD MUTUAL FUND ADVISERS TRUST 499,190$11,167,0000.46%
View complete list of ATRICURE INC shareholders