GROUP ONE TRADING, L.P. - QUANTUM CORP ownership

QUANTUM CORP's ticker is QTM and the CUSIP is 747906204. A total of 111 filers reported holding QUANTUM CORP in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of QUANTUM CORP
ValueSharesWeighting
Q1 2017$0342
-14.5%
0.00%
Q4 2016$0
-100.0%
400
-99.7%
0.00%
-100.0%
Q1 2016$93,000
+126.8%
152,505
+245.8%
0.00%
Q4 2015$41,000
+241.7%
44,105
+164.0%
0.00%
Q3 2015$12,000
+300.0%
16,705
+828.1%
0.00%
Q2 2015$3,000
+200.0%
1,800
+63.6%
0.00%
Q1 2014$1,0000.0%1,1000.0%0.00%
Q4 2013$1,000
-50.0%
1,1000.0%0.00%
Q3 2013$2,000
+100.0%
1,100
+175.0%
0.00%
Q2 2013$1,0004000.00%
Other shareholders
QUANTUM CORP shareholders Q3 2013
NameSharesValueWeighting ↓
Nokomis Capital, L.L.C. 10,010,946$17,619,0005.57%
Potomac Capital Management, Inc. 1,525,023$2,684,0003.10%
Sippican Capital Advisors 1,551,174$2,730,0002.73%
Breithorn Capital Management 2,403,515$4,230,0002.71%
BRIGHTFIELD CAPITAL MANAGEMENT LLC 1,240,000$2,182,0002.31%
COOPER CREEK PARTNERS MANAGEMENT LLC 1,540,026$2,170,0002.28%
Private Capital Management, LLC 10,701,971$18,835,0002.07%
Park West Asset Management LLC 6,425,000$11,308,0001.79%
Roumell Asset Management, LLC 678,370$1,194,0001.51%
Starboard Value LP 25,695,000$45,223,0001.02%
View complete list of QUANTUM CORP shareholders