SIMPLEX TRADING, LLC - ATRICURE INC ownership

ATRICURE INC's ticker is ATRC and the CUSIP is 04963C209. A total of 192 filers reported holding ATRICURE INC in Q1 2021. The put-call ratio across all filers is 0.09 and the average weighting 0.1%.

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 Q1 2021
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