Investor Presentaiton

5 What kind of cancer do I have? cfDNA methylation encodes cancer subtype HR- INVESTOR 20 DAY 23 1.0 HR+/ 1.0 -0.8 -0.8 -0.6 HER2+ -0.6 -04 -0.2 -0.2 HR+ -0.0 -0.0 Fingerprints differentiating breast cancer subtypes are detectable with Smart Liquid Biopsy HR- HER2- Epigenomic profiles derived from plasma of breast cancer patients may enable precision diagnostics and potential for identifying novel response predictors GUARDANT™ 41 11

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