Westfield Capital Management’s CUBIST PHARMACEUTICALS INC CBST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2015
Q1
Sell
-2,720,073
Closed -$274M 350
2014
Q4
$274M Sell
2,720,073
-701,357
-20% -$54.5M 1.61% 5
2014
Q3
$227M Buy
3,421,430
+186,860
+6% +$12.3M 1.39% 9
2014
Q2
$226M Buy
3,234,570
+536,335
+20% +$36.5M 1.34% 8
2014
Q1
$197M Sell
2,698,235
-5,284
-0.2% -$394K 1.18% 10
2013
Q4
$186M Buy
2,703,519
+878,385
+48% +$56.9M 1.1% 13
2013
Q3
$116M Buy
1,825,134
+233,955
+15% +$14.1M 0.74% 42
2013
Q2
$76.8M Buy
+1,591,179
New +$78.2M 0.53% 57