Citadel Advisors - MKS INSTRUMENT INC ownership

MKS INSTRUMENT INC's ticker is and the CUSIP is 55306N954. A total of 2 filers reported holding MKS INSTRUMENT INC in Q1 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
Citadel Advisors ownership history of MKS INSTRUMENT INC
ValueSharesWeighting
Q3 2015$245,000
-17.2%
7,300
-6.4%
0.00%
Q2 2015$296,000
+32.7%
7,800
+18.2%
0.00%
Q1 2015$223,000
+2130.0%
6,600
+2100.0%
0.00%
Q3 2014$10,000
-64.3%
300
-66.7%
0.00%
Q2 2014$28,000
-48.1%
900
-50.0%
0.00%
Q1 2014$54,000
-35.7%
1,800
-35.7%
0.00%
Q4 2013$84,000
-1.2%
2,800
-12.5%
0.00%
Q3 2013$85,000
-23.4%
3,200
-23.8%
0.00%
Q2 2013$111,0004,2000.00%
Other shareholders
MKS INSTRUMENT INC shareholders Q1 2015
NameSharesValueWeighting ↓
Twin Tree Management, LP 22,200$1,921,1880.00%
GROUP ONE TRADING, L.P. 200$17,3080.00%
SIMPLEX TRADING, LLC 4,800$4150.00%
JANE STREET GROUP, LLC 3,200$276,9280.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of MKS INSTRUMENT INC shareholders