SIMPLEX TRADING, LLC - CARBON BLACK INC ownership

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CARBON BLACK INC's ticker is and the CUSIP is 14081R953. A total of 3 filers reported holding CARBON BLACK INC in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.

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Filings
Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of CARBON BLACK INC
ValueSharesWeighting
Q3 2019$124,000
-68.1%
48
-79.4%
0.00%
-100.0%
Q2 2019$389,000
-6.9%
233
-22.3%
0.00%0.0%
Q1 2019$418,000
+4080.0%
300
+3650.0%
0.00%–
Q4 2018$10,000
-89.5%
8
-82.2%
0.00%–
Q3 2018$95,000–45–0.00%–
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Other shareholders
CARBON BLACK INC shareholders Q4 2018
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 400$5,0000.00%
SIMPLEX TRADING, LLC 8$10,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of CARBON BLACK INC shareholders