MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

MILLENNIUM MANAGEMENT LLC's Holding History (CIK: 0001273087)

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

Q4 2025

Shares 187,965 Value ($000) $24,447 Avg Close $143.19 Range $129.77 - $157.72

Q3 2025

Shares 16,131 Value ($000) $2,380 Avg Close $151.39 Range $135.34 - $172.55

Q2 2025

Shares 3,907 Value ($000) $657 Avg Close $159.72 Range $133.70 - $174.50

Q1 2025

Shares 134,806 Value ($000) $22,459 Avg Close $173.51 Range $159.29 - $194.88

Q4 2024

Shares 408,058 Value ($000) $67,452 Avg Close $157.91 Range $131.60 - $180.97

Q3 2024

Shares 29,253 Value ($000) $3,900 Avg Close $116.03 Range $101.61 - $135.78

Q2 2024

Shares 753,743 Value ($000) $94,926 Avg Close $131.69 Range $112.85 - $147.89

Q1 2024

Shares 347,016 Value ($000) $50,959 Avg Close $129.12 Range $107.57 - $153.93

Q4 2023

Shares 196,460 Value ($000) $23,027 Avg Close $93.21 Range $75.22 - $122.60

Q3 2023

Shares 241,201 Value ($000) $21,149 Avg Close $116.39 Range $83.03 - $164.16

Q2 2023

Shares 218,982 Value ($000) $36,033 Avg Close $174.09 Range $153.35 - $198.00

Q1 2023

Shares 395,553 Value ($000) $73 Avg Close $168.70 Range $144.51 - $184.97

Q4 2022

Shares 190,936 Value ($000) $28 Avg Close $137.60 Range $108.89 - $150.87

Q3 2022

Shares 548,626 Value ($000) $77,444 Avg Close $146.09 Range $122.68 - $172.74

Q2 2022

Shares 722,159 Value ($000) $94,365 Avg Close $133.79 Range $112.07 - $154.51

Q1 2022

Shares 964,693 Value ($000) $140,401 Avg Close $192.01 Range $133.94 - $291.15

Q4 2021

Shares 240,743 Value ($000) $70,485 Avg Close $284.79 Range $262.52 - $305.21

Q3 2021

Shares 24,992 Value ($000) $6,766 Avg Close $271.15 Range $241.42 - $288.27

Q2 2021

Shares 10,451 Value ($000) $2,534 Avg Close $228.17 Range $205.10 - $250.49

Q1 2021

Shares 57,540 Value ($000) $13,215 Avg Close $251.21 Range $217.65 - $284.86

Q2 2020

Shares 61,912 Value ($000) $14,115 Avg Close $219.47 Range $173.15 - $258.00

Q1 2020

Shares 92,218 Value ($000) $16,334 Avg Close $171.51 Range $143.90 - $187.85

Q4 2019

Shares 4,577 Value ($000) $723 Avg Close $150.33 Range $140.16 - $160.06

Q3 2019

Shares 14,597 Value ($000) $2,171 Avg Close $151.90 Range $139.36 - $160.25

Q2 2019

Shares 2,971 Value ($000) $442 Avg Close $137.22 Range $118.93 - $148.93

Q1 2019

Shares 86,577 Value ($000) $11,972 Avg Close $125.54 Range $101.87 - $139.48

Q4 2018

Shares 454,173 Value ($000) $48,765 Avg Close $111.51 Range $98.23 - $126.89

Q3 2018

Shares 1,104,358 Value ($000) $137,537 Avg Close $110.93 Range $96.14 - $124.74

Q2 2018

Shares 911,453 Value ($000) $89,003 Avg Close $95.08 Range $83.16 - $102.32

Q1 2018

Shares 479,784 Value ($000) $42,197 Avg Close $87.17 Range $80.69 - $96.45

Q4 2017

Shares 123,076 Value ($000) $10,437 Avg Close $86.74 Range $84.05 - $91.04

Q3 2017

Shares 255,602 Value ($000) $22,125 Avg Close $88.42 Range $81.01 - $100.00

Q2 2017

Shares 13,055 Value ($000) $1,190 Avg Close $91.81 Range $82.71 - $104.71

Q1 2017

Shares 158,840 Value ($000) $14,813 Avg Close $82.32 Range $66.79 - $96.68

Q4 2016

Shares 90,398 Value ($000) $6,093 Avg Close $61.46 Range $53.78 - $68.88

Q3 2016

Shares 105,402 Value ($000) $6,270 Avg Close $56.42 Range $51.10 - $60.52

Q2 2016

Shares 244,452 Value ($000) $12,837 Avg Close $47.10 Range $41.19 - $53.55

Q1 2016

Shares 65,982 Value ($000) $2,761 Avg Close $37.61 Range $33.03 - $41.93

Q4 2015

Shares 173,036 Value ($000) $7,183 Avg Close $40.86 Range $37.40 - $43.76

Q3 2015

Shares 15,944 Value ($000) $615 Avg Close $40.86 Range $35.33 - $46.00

Q2 2015

Shares 20,635 Value ($000) $799 Avg Close $35.83 Range $32.33 - $39.91

Q1 2015

Shares 248,139 Value ($000) $8,184 Avg Close $28.75 Range $25.12 - $33.16

Q4 2014

Shares 68,095 Value ($000) $1,794 Avg Close $24.68 Range $21.03 - $27.15

Q3 2014

Shares 385,401 Value ($000) $8,201 Avg Close $22.83 Range $19.30 - $24.75

Q2 2014

Shares 288,153 Value ($000) $6,800 Avg Close $24.80 Range $21.45 - $28.78

Q1 2014

Shares 20,000 Value ($000) $546 Avg Close $28.52 Range $25.08 - $32.20

Q4 2013

Shares 162,451 Value ($000) $4,748 Avg Close $27.99 Range $25.42 - $29.66

Q3 2013

Shares 7,600 Value ($000) $202 Avg Close $24.65 Range $21.21 - $27.17

Q2 2013

Shares 177,106 Value ($000) $3,755 Avg Close $21.04 Range $19.03 - $22.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	187,965	$24,447	$143.19	$129.77 - $157.72
Q3 2025	16,131	$2,380	$151.39	$135.34 - $172.55
Q2 2025	3,907	$657	$159.72	$133.70 - $174.50
Q1 2025	134,806	$22,459	$173.51	$159.29 - $194.88
Q4 2024	408,058	$67,452	$157.91	$131.60 - $180.97
Q3 2024	29,253	$3,900	$116.03	$101.61 - $135.78
Q2 2024	753,743	$94,926	$131.69	$112.85 - $147.89
Q1 2024	347,016	$50,959	$129.12	$107.57 - $153.93
Q4 2023	196,460	$23,027	$93.21	$75.22 - $122.60
Q3 2023	241,201	$21,149	$116.39	$83.03 - $164.16
Q2 2023	218,982	$36,033	$174.09	$153.35 - $198.00
Q1 2023	395,553	$73	$168.70	$144.51 - $184.97
Q4 2022	190,936	$28	$137.60	$108.89 - $150.87
Q3 2022	548,626	$77,444	$146.09	$122.68 - $172.74
Q2 2022	722,159	$94,365	$133.79	$112.07 - $154.51
Q1 2022	964,693	$140,401	$192.01	$133.94 - $291.15
Q4 2021	240,743	$70,485	$284.79	$262.52 - $305.21
Q3 2021	24,992	$6,766	$271.15	$241.42 - $288.27
Q2 2021	10,451	$2,534	$228.17	$205.10 - $250.49
Q1 2021	57,540	$13,215	$251.21	$217.65 - $284.86
Q2 2020	61,912	$14,115	$219.47	$173.15 - $258.00
Q1 2020	92,218	$16,334	$171.51	$143.90 - $187.85
Q4 2019	4,577	$723	$150.33	$140.16 - $160.06
Q3 2019	14,597	$2,171	$151.90	$139.36 - $160.25
Q2 2019	2,971	$442	$137.22	$118.93 - $148.93
Q1 2019	86,577	$11,972	$125.54	$101.87 - $139.48
Q4 2018	454,173	$48,765	$111.51	$98.23 - $126.89
Q3 2018	1,104,358	$137,537	$110.93	$96.14 - $124.74
Q2 2018	911,453	$89,003	$95.08	$83.16 - $102.32
Q1 2018	479,784	$42,197	$87.17	$80.69 - $96.45
Q4 2017	123,076	$10,437	$86.74	$84.05 - $91.04
Q3 2017	255,602	$22,125	$88.42	$81.01 - $100.00
Q2 2017	13,055	$1,190	$91.81	$82.71 - $104.71
Q1 2017	158,840	$14,813	$82.32	$66.79 - $96.68
Q4 2016	90,398	$6,093	$61.46	$53.78 - $68.88
Q3 2016	105,402	$6,270	$56.42	$51.10 - $60.52
Q2 2016	244,452	$12,837	$47.10	$41.19 - $53.55
Q1 2016	65,982	$2,761	$37.61	$33.03 - $41.93
Q4 2015	173,036	$7,183	$40.86	$37.40 - $43.76
Q3 2015	15,944	$615	$40.86	$35.33 - $46.00
Q2 2015	20,635	$799	$35.83	$32.33 - $39.91
Q1 2015	248,139	$8,184	$28.75	$25.12 - $33.16
Q4 2014	68,095	$1,794	$24.68	$21.03 - $27.15
Q3 2014	385,401	$8,201	$22.83	$19.30 - $24.75
Q2 2014	288,153	$6,800	$24.80	$21.45 - $28.78
Q1 2014	20,000	$546	$28.52	$25.08 - $32.20
Q4 2013	162,451	$4,748	$27.99	$25.42 - $29.66
Q3 2013	7,600	$202	$24.65	$21.21 - $27.17
Q2 2013	177,106	$3,755	$21.04	$19.03 - $22.70