MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020

Shares 49,178 Value ($000) $13,198 Avg Close $249.38 Range $218.23 - $273.33

Q3 2020

Shares 36,197 Value ($000) $8,545 Avg Close $224.17 Range $203.81 - $248.88

Q2 2020

Shares 43,068 Value ($000) $9,819 Avg Close $219.47 Range $173.15 - $258.00

Q1 2020

Shares 38,059 Value ($000) $6,741 Avg Close $171.51 Range $143.90 - $187.85

Q4 2019

Shares 19,158 Value ($000) $3,028 Avg Close $150.33 Range $140.16 - $160.06

Q3 2019

Shares 20,117 Value ($000) $2,993 Avg Close $151.90 Range $139.36 - $160.25

Q2 2019

Shares 21,696 Value ($000) $3,228 Avg Close $137.22 Range $118.93 - $148.93

Q1 2019

Shares 19,935 Value ($000) $2,757 Avg Close $125.54 Range $101.87 - $139.48

Q4 2018

Shares 20,094 Value ($000) $2,157 Avg Close $111.51 Range $98.23 - $126.89

Q3 2018

Shares 19,402 Value ($000) $2,417 Avg Close $110.93 Range $96.14 - $124.74

Q2 2018

Shares 21,382 Value ($000) $2,088 Avg Close $95.08 Range $83.16 - $102.32

Q1 2018

Shares 24,266 Value ($000) $2,134 Avg Close $87.17 Range $80.69 - $96.45

Q4 2017

Shares 30,568 Value ($000) $2,592 Avg Close $86.74 Range $84.05 - $91.04

Q3 2017

Shares 44,092 Value ($000) $3,816 Avg Close $88.42 Range $81.01 - $100.00

Q2 2017

Shares 60,619 Value ($000) $5,527 Avg Close $91.81 Range $82.71 - $104.71

Q1 2017

Shares 28,762 Value ($000) $2,682 Avg Close $82.32 Range $66.79 - $96.68

Q4 2016

Shares 19,782 Value ($000) $1,334 Avg Close $61.46 Range $53.78 - $68.88

Q3 2016

Shares 16,503 Value ($000) $982 Avg Close $56.42 Range $51.10 - $60.52

Q2 2016

Shares 15,335 Value ($000) $805 Avg Close $47.10 Range $41.19 - $53.55

Q1 2016

Shares 15,761 Value ($000) $660 Avg Close $37.61 Range $33.03 - $41.93

Q4 2015

Shares 12,382 Value ($000) $514 Avg Close $40.86 Range $37.40 - $43.76

Q3 2015

Shares 10,652 Value ($000) $411 Avg Close $40.86 Range $35.33 - $46.00

Q2 2015

Shares 10,715 Value ($000) $415 Avg Close $35.83 Range $32.33 - $39.91

Q1 2015

Shares 10,860 Value ($000) $358 Avg Close $28.75 Range $25.12 - $33.16

Q4 2014

Shares 8,338 Value ($000) $220 Avg Close $24.68 Range $21.03 - $27.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	49,178	$13,198	$249.38	$218.23 - $273.33
Q3 2020	36,197	$8,545	$224.17	$203.81 - $248.88
Q2 2020	43,068	$9,819	$219.47	$173.15 - $258.00
Q1 2020	38,059	$6,741	$171.51	$143.90 - $187.85
Q4 2019	19,158	$3,028	$150.33	$140.16 - $160.06
Q3 2019	20,117	$2,993	$151.90	$139.36 - $160.25
Q2 2019	21,696	$3,228	$137.22	$118.93 - $148.93
Q1 2019	19,935	$2,757	$125.54	$101.87 - $139.48
Q4 2018	20,094	$2,157	$111.51	$98.23 - $126.89
Q3 2018	19,402	$2,417	$110.93	$96.14 - $124.74
Q2 2018	21,382	$2,088	$95.08	$83.16 - $102.32
Q1 2018	24,266	$2,134	$87.17	$80.69 - $96.45
Q4 2017	30,568	$2,592	$86.74	$84.05 - $91.04
Q3 2017	44,092	$3,816	$88.42	$81.01 - $100.00
Q2 2017	60,619	$5,527	$91.81	$82.71 - $104.71
Q1 2017	28,762	$2,682	$82.32	$66.79 - $96.68
Q4 2016	19,782	$1,334	$61.46	$53.78 - $68.88
Q3 2016	16,503	$982	$56.42	$51.10 - $60.52
Q2 2016	15,335	$805	$47.10	$41.19 - $53.55
Q1 2016	15,761	$660	$37.61	$33.03 - $41.93
Q4 2015	12,382	$514	$40.86	$37.40 - $43.76
Q3 2015	10,652	$411	$40.86	$35.33 - $46.00
Q2 2015	10,715	$415	$35.83	$32.33 - $39.91
Q1 2015	10,860	$358	$28.75	$25.12 - $33.16
Q4 2014	8,338	$220	$24.68	$21.03 - $27.15