SIMPLEX TRADING, LLC - VOCERA COMMUNICATIONS INC ownership

VOCERA COMMUNICATIONS INC's ticker is VCRA and the CUSIP is 92857F107. A total of 143 filers reported holding VOCERA COMMUNICATIONS INC in Q2 2018. The put-call ratio across all filers is 0.28 and the average weighting 0.1%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of VOCERA COMMUNICATIONS INC
ValueSharesWeighting
Q4 2021$94,000
+104.3%
1,462
+30.9%
0.00%
Q4 2020$46,000
-55.8%
1,117
-69.0%
0.00%
Q3 2020$104,000
+181.1%
3,605
+106.1%
0.00%
Q2 2020$37,000
-63.7%
1,749
-63.9%
0.00%
Q1 2020$102,000
+10100.0%
4,844
+5053.2%
0.00%
Q4 2019$1,000
-95.7%
94
-90.2%
0.00%
Q3 2019$23,000
-64.6%
955
-53.8%
0.00%
Q2 2019$65,000
-29.3%
2,065
-29.1%
0.00%
Q1 2019$92,000
-91.7%
2,912
-89.7%
0.00%
-100.0%
Q4 2018$1,108,000
+664.1%
28,167
+605.8%
0.00%
Q3 2018$145,000
+98.6%
3,991
+62.6%
0.00%
Q2 2018$73,000
+2333.3%
2,455
+1515.1%
0.00%
Q1 2018$3,000
-95.2%
152
-92.7%
0.00%
-100.0%
Q4 2017$63,000
+800.0%
2,096
+780.7%
0.00%
Q3 2017$7,000
-88.9%
238
-90.1%
0.00%
-100.0%
Q2 2017$63,000
+80.0%
2,407
+70.5%
0.00%
+50.0%
Q1 2017$35,0001,412
+2615.4%
0.00%
Q3 2015$0
-100.0%
52
-88.7%
0.00%
Q2 2015$5,0004590.00%
Other shareholders
VOCERA COMMUNICATIONS INC shareholders Q2 2018
NameSharesValueWeighting ↓
RRE Ventures GP III, LLC 135,272$1,091,0003.09%
MARXE AUSTIN W & GREENHOUSE DAVID M 2,388,325$19,274,0002.63%
Nichols Asset Management LLC 504,313$4,070,0000.84%
Lyon Street Capital, LLC 106,904$863,0000.40%
WHITE PINE CAPITAL LLC 127,600$1,030,0000.35%
Granite Investment Partners, LLC 310,236$2,504,0000.34%
Brown Capital Management 2,348,752$18,954,0000.34%
CWM, LLC 275,390$2,222,0000.32%
Cortina Asset Management, LLC 925,616$7,470,0000.32%
TIVERTON ASSET MANAGEMENT LLC 850,000$6,864,0000.16%
View complete list of VOCERA COMMUNICATIONS INC shareholders