GROUP ONE TRADING, L.P. - U S AIRWAYS GROUP INC ownership

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of U S AIRWAYS GROUP INC
ValueSharesWeighting
Q3 2013$28,597,000
+182.7%
1,508,300
+144.9%
0.55%
+119.7%
Q2 2013$10,115,000616,0000.25%
Other shareholders
U S AIRWAYS GROUP INC shareholders Q4 2013
NameSharesValueWeighting ↓
Pentwater Capital Management LP 2,160,000$35,467,0000.75%
GROUP ONE TRADING, L.P. 616,000$10,115,0000.25%
WHITEBOX ADVISORS LLC 1,904$643,0000.03%
KNIGHT CAPITAL GROUP LLC 56,800$933,0000.02%
COMMERZBANK AKTIENGESELLSCHAFT /FI 70,000$1,149,0000.01%
SG Americas Securities, LLC 413,300$1,110,0000.01%
Citadel Advisors 68,800$1,130,0000.00%
Timber Hill LLC 18,100$297,0000.00%
View complete list of U S AIRWAYS GROUP INC shareholders