Masimo Corporation Reconciliation Between GAAP and Non-GAAP Financial Measures (Unaudited; in millions, except percentages and per share data) (1) Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 GAAP revenue $269.6 $301.0 $278.1 $295.1 $299.0 $305.1 $307.4 $327.6 $304.2 Constant currency adjustments (2) N/A N/A N/A N/A N/A N/A N/A N/A $4.3 Non-GAAP revenue $269.6 $301.0 $278.1 $295.1 $299.0 $305.1 $307.4 $327.6 $308.6 GAAP gross profit $185.6 $191.6 $178.9 $186.9 $196.9 $192.9 $203.7 $214.9 $204.8 Acquired tangible asset amortization $0.0 $0.0 $0.0 $0.0 $0.1 $0.1 $0.1 $0.1 $0.0 Acquired intangible asset amortization $0.2 $0.4 $0.3 $0.2 $0.6 $0.6 $0.6 $0.6 $0.6 Acquisition, integration and related costs $0.2 $0.1 $0.1 $0.2 $0.1 $0.5 $0.0 $0.3 $0.0 Other adjustments $0.0 $0.0 $0.0 $0.0 $0.0 $3.4 $0.0 $0.0 $0.0 Non-GAAP gross profit $186.0 $192.2 $179.3 $187.4 $197.7 $197.5 $204.5 $215.9 $205.4 Non-GAAP gross margin % (3) 69.0% 63.9% 64.5% 63.5% 66.1% 64.7% 66.5% 65.9% 67.5% GAAP selling, general and administrative expenses $89.9 $98.5 $90.4 $90.3 $96.7 $93.8 $100.6 $104.1 $108.9 Acquired intangible asset amortization ($0.5) ($0.7) ($0.6) ($1.4) ($1.0) ($0.9) ($0.9) ($0.9) ($0.9) Acquisition, integration and related costs ($1.6) $0.0 ($0.2) ($1.3) ($1.0) ($0.4) ($0.3) ($0.5) ($3.1) Litigation related expenses and settlements $0.0 $0.0 $0.0 $0.0 $0.0 ($0.4) ($1.2) ($3.9) ($5.5) Other adjustments $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 ($0.5) $0.0 Non-GAAP selling, general and administrative expenses $87.8 $97.8 $89.5 $87.6 $94.7 $92.2 $98.3 $98.3 $99.5 GAAP research and development expenses $27.2 $30.9 $28.9 $31.7 $34.5 $33.9 $35.4 $33.4 $36.1 Acquired intangible asset amortization $0.0 $0.0 $0.0 ($0.0) $0.0 $0.0 $0.0 $0.0 $0.0 Acquisition, integration and related costs ($0.0) ($0.0) ($0.0) ($0.0) $0.0 $0.0 $0.0 $0.0 $0.0 Non-GAAP research and development expenses $27.2 $30.9 $28.8 $31.6 $34.5 $33.9 $35.4 $33.4 $36.1 GAAP litigation settlements and awards ($0.5) $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 Litigation related expenses and settlements $0.5 ($0.0) $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 Non-GAAP litigation settlements and awards $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 GAAP operating expenses $116.6 $129.4 $119.2 $122.0 $131.2 $127.8 $136.1 $137.5 $145.0 Acquired intangible asset amortization ($0.5) ($0.7) ($0.6) ($1.4) ($1.0) ($0.9) ($0.9) ($0.9) ($0.9) Acquisition, integration and related costs ($1.6) $0.0 ($0.3) ($1.4) ($1.0) ($0.4) ($0.3) ($0.5) ($3.1) Litigation related expenses and settlements $0.5 ($0.0) $0.0 $0.0 $0.0 ($0.4) ($1.2) ($3.9) ($5.5) Other adjustments $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 ($0.5) $0.0 Non-GAAP operating expenses $115.0 $128.6 $118.4 $119.2 $129.2 $126.1 $133.7 $131.7 $135.6 GAAP operating profit $69.0 $62.2 $59.7 $64.9 $65.7 $65.1 $67.6 $77.4 $59.7 Acquired tangible asset amortization $0.0 $0.0 $0.0 $0.0 $0.1 $0.1 $0.1 $0.1 $0.0 Acquired intangible asset amortization $0.7 $1.2 $0.9 $1.7 $1.6 $1.5 $1.5 $1.5 $1.5 Acquisition, integration and related costs $1.8 $0.1 $0.4 $1.5 $1.0 $0.9 $0.3 $0.8 $3.1 Litigation related expenses and settlements ($0.5) $0.0 $0.0 $0.0 $0.0 $0.4 $1.2 $3.9 $5.5 Other adjustments $0.0 $0.0 $0.0 $0.0 $0.0 $3.4 $0.0 $0.5 $0.0 Non-GAAP operating profit $71.0 $63.6 $61.0 $68.1 $68.5 $71.4 $70.8 $84.2 $69.8 Non-GAAP operating margin % (3) 26.3% 21.1% 21.9% 23.1% 22.9% 23.4% 23.0% 25.7% 22.9%

Masimo公司公认会计原则与非公认会计原则财务措施之间的对账(未经审计；以百万计，(1)2020年第一季度2020第二季度2020第四季度2020第一季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度第三季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度2021第二季度20-GAAP非营业收入(费用)$2.8$1.4$0.7$0.4$0.1$0.1$0.2$0.1$0.2$0.2$0.2 GAAP所得税准备金$7.9$7.9$11.7(美元3.9)$11.5$15.0$9.8$8.4$12.5非GAAP调整的税收影响$0.3$0.4$0.2$5.2$0.6$1.2$0.5$1.4$2.5股票薪酬支出的超额税收优惠$9.6$7.5$3.1$10.0$4.3$1.3$6.4$4.4$1.7非GAAP所得税准备金$17.8$15.7$14.9$11.3$16.4$17.5$16.7$14.2$16.8 GAAP净收益(亏损)$64.5$55.8$49.4$70.6$53.4$50.2$57.8$68.3$46.6收购有形资产摊销$0.0$0.0$0.0$0.0$0.1$0.1$0.1收购无形资产资产摊销$0.7$1.2$0.9$1.7$1.6$1.5$1.5$1.5$1.5收购, 合并及相关成本$1.8$0.1$0.4$1.5$1.0$0.9$0.3$0.8$3.1与诉讼相关的费用和和解($0.5)$0.0$0.0$0.0$0.4$1.2$3.9$5.5其他调整$0.0$0.0$0.0$0.0$0.0$3.4$0.0$0.5$0.0已实现和未实现的收益或亏损($0.6)($0.6)($1).4)非GAAP调整的税收影响(0.3美元)(0.4美元)(0.2美元)(5.2美元)(0.6美元)(1.2美元)(0.5美元)(1.4美元)(2.5美元)股票薪酬支出的超额税收优惠(9.6美元)(7.5美元)(3.1美元)(10.0美元)(4.3美元)(1美元。非GAAP净收益(亏损)$55.9$49.3$46.8$57.3$52.1$54.0$54.3$70.1$53.2 GAAP每股净收益(亏损)$1.12$0.96$0.85$1.21$0.92$0.88$1.00$1.18$0.81收购有形资产摊销0.00 0.00 0.0000收购无形资产摊销0.01 0.02 0.02 0.03 0.03 0.03收购, 合并及相关费用0.03 0.00 0.01 0.03 0.02 0.02 0.01 0.05与诉讼有关的费用和和解(0.01)0.00 0.00 0.00 0.01 0.02 0.07 0.10其他调整0.00 0.00 0.00 0.06 0.00 0.01 0.00已实现和未实现的损益(0.01)(0.00)(0.01)(0.02)0.01 0.00 0.00 0.01非GAAP调整的税收影响(0.01)(0.01)(0.00)(0.09)(0.01)(0.02)(0.01)(0.02)(0.04)股票薪酬支出的超额税收收益(0.17)(0.13)(0.05)(0.17)(0.07)(0。每股非GAAP净收益(亏损)$0.97$0.85$0.80$0.98$0.90$0.94$0.94$1.21$0.93加权平均流通股-稀释后57.6 58.2 58.3 58.2 57.9 57.4 57.7 57.8 57.3脚注：(3)按GAAP收入的百分比计算。(2)不断的货币调整旨在按上一年的汇率反映当年的收入，以便进行比较。(1)由于四舍五入，合计可能不是一位数。由于四舍五入惯例，季度报告的金额可能与以前报告的金额不同。