MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

MGO ONE SEVEN LLC's Holding History (CIK: 0001731444)

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

Q4 2018

Shares 38 Value ($000) $2 Avg Close $68.31 Range $53.35 - $77.61

Q1 2018

Shares 3,077 Value ($000) $356 Avg Close $103.13 Range $88.32 - $120.60

Q4 2017

Shares 11 Value ($000) $1 Avg Close $93.43 Range $82.69 - $103.63

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	38	$2	$68.31	$53.35 - $77.61
Q1 2018	3,077	$356	$103.13	$88.32 - $120.60
Q4 2017	11	$1	$93.43	$82.69 - $103.63