Livongo Investor Presentation Deck

GAAP to Non-GAAP Reconciliation LIVONGO HEALTH, INC. RECONCILIATION OF GAAP TO NON-GAAP MEASURES (in thousands, except percentages) (unaudited) Cost of revenue Gross profit Gross margin Research and development Sales and marketing General and administrative Change in fair value of contingent consideration Total operating expenses Income (loss) from operations Income (loss) before provision for income taxes Net income (loss) Net income (loss) attributable to common stockholders Net income (loss) per share attributable to common stockholders, diluted Weighted-average shares used in computing net income (loss) per share attributable to common stockholders. diluted GAAP $ 18,108 $ $ 50,715 $ 73.7% Stock-Based Compensation Expense $ 13,997 5 $ 27,655 S $ $ 15,846 $ 84 S $ 57,582 S $ (6,867) $ $ (5,552) $ $ (5,573) $ $ (5,573) (0.06) $ 95,543 Amortization of Intangible Assets (92) S 92 $ (2.216) $ (2,052) $ (3.703) $ $ (7.971) S 8.083 S 8.083 $ 8.083 $ Three Months Ended March 31, 2020 8,083 $ (420) S 420 $ (276) - (276) 696 696 696 696 S $ $ 69 69 69 69 60 $ Lock-Up Related Payroll Taxes Change in Fair Value of Contingent Consideration S S (153) S (167) $ (280) S 800 $ (800) S 800 S 800 $ 600 $ 69 S S S $ 3 (84) S (84) $ 84 S 84 $ 84 S 84 $ Tax Impact Livongo™ $ 17,596 $ 51,227 $ $ Non- GAAP $ $ 11,628 $ 25,160 $ 11,863 $ $ $ 74.4% - 48,651 2,576 3,891 3,870 3,870 0.03 112,278 24

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