MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

DE BURLO GROUP INC's Holding History (CIK: 0001134288)

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

Q3 2018

Shares 27,700 Value ($000) $2,220 Avg Close $86.11 Range $74.38 - $97.19

Q2 2018

Shares 27,950 Value ($000) $2,674 Avg Close $102.60 Range $86.55 - $115.42

Q1 2018

Shares 108,750 Value ($000) $12,576 Avg Close $103.13 Range $88.32 - $120.60

Q4 2017

Shares 64,150 Value ($000) $6,062 Avg Close $93.43 Range $82.69 - $103.63

Q3 2017

Shares 113,650 Value ($000) $10,734 Avg Close $76.52 Range $62.45 - $89.48

Q2 2017

Shares 97,850 Value ($000) $6,585 Avg Close $70.74 Range $60.40 - $82.65

Q1 2017

Shares 221,000 Value ($000) $15,193 Avg Close $61.31 Range $54.85 - $65.67

Q4 2016

Shares 203,600 Value ($000) $12,094 Avg Close $50.13 Range $43.15 - $57.04

Q3 2016

Shares 55,400 Value ($000) $2,755 Avg Close $43.66 Range $38.22 - $50.60

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	27,700	$2,220	$86.11	$74.38 - $97.19
Q2 2018	27,950	$2,674	$102.60	$86.55 - $115.42
Q1 2018	108,750	$12,576	$103.13	$88.32 - $120.60
Q4 2017	64,150	$6,062	$93.43	$82.69 - $103.63
Q3 2017	113,650	$10,734	$76.52	$62.45 - $89.48
Q2 2017	97,850	$6,585	$70.74	$60.40 - $82.65
Q1 2017	221,000	$15,193	$61.31	$54.85 - $65.67
Q4 2016	203,600	$12,094	$50.13	$43.15 - $57.04
Q3 2016	55,400	$2,755	$43.66	$38.22 - $50.60