GROUP ONE TRADING, L.P. - COLUMBIA LABS INC ownership

COLUMBIA LABS INC's ticker is CBRX and the CUSIP is 197779200. A total of 37 filers reported holding COLUMBIA LABS INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of COLUMBIA LABS INC
ValueSharesWeighting
Q3 2014$114,000
-5.8%
19,408
+10.0%
0.00%0.0%
Q2 2014$121,000
+15.2%
17,648
+21.2%
0.00%0.0%
Q1 2014$105,00014,5670.00%
Other shareholders
COLUMBIA LABS INC shareholders Q4 2014
NameSharesValueWeighting ↓
JW Asset Management, LLC 498,767$3,097,0001.34%
Krensavage Asset Management, LLC 316,149$1,963,0000.89%
PERRITT CAPITAL MANAGEMENT INC 154,500$959,0000.17%
Bellevue Asset Management AG 110,000$682,0000.10%
KNOTT DAVID M 66,760$414,580,0000.09%
TWO SIGMA SECURITIES, LLC 13,765$85,0000.09%
Rotella Capital Management, Inc. 10,985$68,0000.06%
Municipal Employees' Retirement System of Michigan 86,580$538,0000.04%
SHEPHERD KAPLAN KROCHUK, LLC 20,433$127,0000.02%
Spark Investment Management LLC 23,500$145,0000.02%
View complete list of COLUMBIA LABS INC shareholders