GROUP ONE TRADING, L.P. - BIO-REFERENCE LABS INC ownership

BIO-REFERENCE LABS INC's ticker is BRLI and the CUSIP is 09057G602. A total of 174 filers reported holding BIO-REFERENCE LABS INC in Q4 2013. The put-call ratio across all filers is 0.19 and the average weighting 0.1%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of BIO-REFERENCE LABS INC
ValueSharesWeighting
Q4 2014$63,000
-69.9%
1,959
-73.7%
0.00%
-66.7%
Q3 2014$209,000
-37.0%
7,462
-32.2%
0.00%
-40.0%
Q2 2014$332,000
-63.2%
10,999
-68.9%
0.01%
-64.3%
Q4 2013$903,00035,3500.01%
Other shareholders
BIO-REFERENCE LABS INC shareholders Q4 2013
NameSharesValueWeighting ↓
Murphy Michael R 818,246$26,290,00010.11%
RK Asset Management, LLC 350,133$11,250,0008.95%
TANAKA CAPITAL MANAGEMENT INC 46,585$1,497,0004.45%
Sarissa Capital Management LP 390,270$12,539,0004.44%
Tikvah Management LLC 115,000$3,695,0002.41%
Rotella Capital Management, Inc. 55,212$1,773,0001.54%
AMERICAN CAPITAL MANAGEMENT INC 367,950$11,822,0001.28%
Smith, Graham & Co., Investment Advisors, LP 221,847$7,128,0001.02%
Nelson Capital Management, LLC 81,930$2,632,0000.98%
RIVERBRIDGE PARTNERS LLC 1,358,864$43,660,0000.81%
View complete list of BIO-REFERENCE LABS INC shareholders