MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

SPROTT INC.'s Holding History (CIK: 0001512920)

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

Q1 2019

Shares 5,000 Value ($000) $465 Avg Close $76.40 Range $59.36 - $88.91

Q4 2018

Shares 20,000 Value ($000) $1,292 Avg Close $68.31 Range $53.35 - $77.61

Q4 2017

Shares 37,500 Value ($000) $3,543 Avg Close $93.43 Range $82.69 - $103.63

Q3 2017

Shares 63,500 Value ($000) $5,998 Avg Close $76.52 Range $62.45 - $89.48

Q2 2017

Shares 70,000 Value ($000) $4,711 Avg Close $70.74 Range $60.40 - $82.65

Q1 2017

Shares 160,000 Value ($000) $11,000 Avg Close $61.31 Range $54.85 - $65.67

Q4 2016

Shares 188,500 Value ($000) $11,197 Avg Close $50.13 Range $43.15 - $57.04

Q3 2016

Shares 232,500 Value ($000) $11,562 Avg Close $43.66 Range $38.22 - $50.60

Q2 2016

Shares 255,000 Value ($000) $10,980 Avg Close $35.80 Range $32.24 - $39.81

Q1 2016

Shares 255,000 Value ($000) $9,601 Avg Close $31.35 Range $28.08 - $35.11

Q4 2015

Shares 260,000 Value ($000) $9,360 Avg Close $32.52 Range $26.43 - $35.02

Q3 2015

Shares 235,000 Value ($000) $7,880 Avg Close $31.60 Range $28.82 - $34.92

Q2 2015

Shares 217,500 Value ($000) $8,252 Avg Close $32.93 Range $29.54 - $35.95

Q1 2015

Shares 160,000 Value ($000) $5,410 Avg Close $31.63 Range $29.59 - $33.22

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	5,000	$465	$76.40	$59.36 - $88.91
Q4 2018	20,000	$1,292	$68.31	$53.35 - $77.61
Q4 2017	37,500	$3,543	$93.43	$82.69 - $103.63
Q3 2017	63,500	$5,998	$76.52	$62.45 - $89.48
Q2 2017	70,000	$4,711	$70.74	$60.40 - $82.65
Q1 2017	160,000	$11,000	$61.31	$54.85 - $65.67
Q4 2016	188,500	$11,197	$50.13	$43.15 - $57.04
Q3 2016	232,500	$11,562	$43.66	$38.22 - $50.60
Q2 2016	255,000	$10,980	$35.80	$32.24 - $39.81
Q1 2016	255,000	$9,601	$31.35	$28.08 - $35.11
Q4 2015	260,000	$9,360	$32.52	$26.43 - $35.02
Q3 2015	235,000	$7,880	$31.60	$28.82 - $34.92
Q2 2015	217,500	$8,252	$32.93	$29.54 - $35.95
Q1 2015	160,000	$5,410	$31.63	$29.59 - $33.22