GROUP ONE TRADING, L.P. - CEPHEID ownership

CEPHEID's ticker is CPHD and the CUSIP is 15670R107. A total of 184 filers reported holding CEPHEID in Q4 2013. The put-call ratio across all filers is 0.38 and the average weighting 0.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of CEPHEID
ValueSharesWeighting
Q3 2016$300,000
+650.0%
5,701
+340.9%
0.00%
Q2 2016$40,000
-81.7%
1,293
-78.3%
0.00%
-100.0%
Q4 2015$218,000
+1182.4%
5,969
+1513.2%
0.00%
Q3 2015$17,000
-96.6%
370
-95.4%
0.00%
-100.0%
Q2 2015$496,000
+1610.3%
8,108
+1229.2%
0.01%
Q2 2014$29,000
+262.5%
610
+256.7%
0.00%
Q4 2013$8,000
+700.0%
171
+584.0%
0.00%
Q2 2013$1,000250.00%
Other shareholders
CEPHEID shareholders Q4 2013
NameSharesValueWeighting ↓
BLUE JAY CAPITAL MANAGEMENT, LLC 290,000$10,594,0003.57%
RIVERBRIDGE PARTNERS LLC 3,675,513$134,266,0002.76%
TAMRO Capital Partners LLC 243,606$8,899,0002.41%
Champlain Investment Partners, LLC 3,402,285$124,285,0002.12%
COLUMBIA WANGER ASSET MANAGEMENT LLC 5,360,677$195,826,0001.96%
AMERICAN CAPITAL MANAGEMENT INC 529,840$19,355,0001.72%
WMS Partners, LLC 267,402$9,768,0001.41%
TIRSCHWELL & LOEWY INC 194,995$7,123,0001.26%
Stephens Investment Management Group LLC 964,912$35,248,0001.24%
Alden Global Capital LLC 58,400$2,133,0001.08%
View complete list of CEPHEID shareholders