MKS INSTRUMENT INC

CUSIP: 55306N10 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q2 2016
Shares 60,572 Value ($000) $2,608 Avg Close — Range —
Q1 2016
Shares 93,225 Value ($000) $3,510 Avg Close — Range —
Q4 2015
Shares 54,149 Value ($000) $1,949 Avg Close — Range —
Q1 2015
Shares 216,663 Value ($000) $7,325 Avg Close — Range —
Q4 2014
Shares 156,110 Value ($000) $5,714 Avg Close — Range —
Q2 2014
Shares 16,080 Value ($000) $502 Avg Close — Range —
Q1 2014
Shares 24,368 Value ($000) $728 Avg Close — Range —
Q4 2013
Shares 38,513 Value ($000) $1,153 Avg Close — Range —