GROUP ONE TRADING, L.P. - CARBON BLACK INC ownership

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CARBON BLACK INC's ticker is and the CUSIP is 14081R903. A total of 3 filers reported holding CARBON BLACK INC in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of CARBON BLACK INC
ValueSharesWeighting
Q3 2019$3,348,000
+660.9%
128,800
+389.7%
0.03%
+575.0%
Q2 2019$440,000
+55.5%
26,300
+29.6%
0.00%
+33.3%
Q1 2019$283,000
+4.0%
20,3000.0%0.00%
+50.0%
Q4 2018$272,000–20,300–0.00%–
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Other shareholders
CARBON BLACK INC shareholders Q2 2019
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 26,300$440,0000.00%
SIMPLEX TRADING, LLC 146$244,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of CARBON BLACK INC shareholders