MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q1 2016
Shares 297,695 Value ($000) $11,208 Avg Close $31.35 Range $28.08 - $35.11
Q4 2015
Shares 369,668 Value ($000) $13,308 Avg Close $32.52 Range $26.43 - $35.02
Q3 2015
Shares 441,476 Value ($000) $14,803 Avg Close $31.60 Range $28.82 - $34.92
Q2 2015
Shares 497,249 Value ($000) $18,866 Avg Close $32.93 Range $29.54 - $35.95
Q1 2015
Shares 588,229 Value ($000) $19,888 Avg Close $31.63 Range $29.59 - $33.22
Q4 2014
Shares 918,523 Value ($000) $33,618 Avg Close $31.69 Range $27.30 - $33.99
Q3 2014
Shares 1,060,903 Value ($000) $35,413 Avg Close $29.19 Range $27.47 - $31.20
Q2 2014
Shares 1,191,362 Value ($000) $37,218 Avg Close $25.69 Range $23.72 - $27.88
Q1 2014
Shares 1,253,587 Value ($000) $37,470 Avg Close $26.46 Range $25.10 - $28.61
Q4 2013
Shares 1,303,054 Value ($000) $39,013 Avg Close $25.51 Range $23.10 - $27.14
Q3 2013
Shares 1,290,973 Value ($000) $34,327 Avg Close $23.28 Range $21.63 - $25.20
Q2 2013
Shares 746,200 Value ($000) $19,804,148 Avg Close $23.45 Range $21.31 - $25.25