Financial Performance - Revenue for 2024 was 283.5million,adecreaseof2.4289.2 million in 2023, while net loss improved from (167.8)millionin2023to(42.7) million in 2024[483]. - Revenue decreased by 5.7million,or2289.2 million in 2023 to 283.5millionin2024,primarilyduetoa24.8 million decline in COVID-19 testing[517]. - Gross profit increased by 2.8million,or3104.5 million in 2023 to 107.2millionin2024,withgrossmarginimprovingfrom36.135.8 million, or 27%, while COVID-19 testing revenue decreased by 24.8million,or9231.3 million in 2024 from 21.6millionin2023,primarilyduetohigherinterestratesonmarketablesecurities[534].−Theeffectiveincometaxratewas16.117.4 million, or 18%, from 41.4millionin2023to48.8 million in 2024, driven by a 74% increase in therapeutic development expenses[525][528]. - Selling and marketing expenses decreased by 5.2million,or1341.5 million in 2023 to 36.2millionin2024[530].−Generalandadministrativeexpensesdecreasedby0.9 million, or 1%, from 89.0millionin2023to88.1 million in 2024[531]. - Cost of revenue decreased by 8.5million,or5184.8 million in 2023 to 176.3millionin2024,withcostofrevenueasapercentageofrevenueimprovingfrom63.962.6 million, or 22%, of total revenue in 2024, highlighting revenue concentration risk[520]. Cash Flow and Investments - Cash, cash equivalents, and marketable securities totaled 828.6millionasofDecember31,2024,downfrom847.7 million in 2023[539]. - Net cash provided by operating activities decreased to 21.1millionin2024from27.0 million in 2023, attributed to timing of cash receipts and payments[544]. - Cash used in investing activities in 2024 was 58.4million,primarilydueto472.4 million in marketable securities purchases[546]. - Cash used in financing activities was 4.8millionin2024,significantlylowerthan47.8 million in 2023, which included 25.1millionforstockrepurchases[548].−Thecompanyrepurchased10,000sharesatacostof0.2 million in 2024, compared to 1.0 million shares for 25.1millionin2023[552].MarketRisks−Thecompanyisexposedtomarketrisksfromfluctuationsininterestratesandforeigncurrencytranslation,whichmayadverselyaffectitsresultsofoperationsandfinancialcondition[570].−Ahypothetical100basispointincreaseininterestrateswouldresultinanincrementaldeclineof14.5 million and 10.1millioninthefairmarketvalueoftheinvestmentportfolioasofDecember31,2024and2023,respectively[572].−Anadverse101.1 million as of December 31, 2024, and 1.3millionasofDecember31,2023[574].GoodwillandImpairment−Goodwillimpairmentlossfor2023was120.2 million for the laboratory services unit, with no impairment loss reported for 2024[533]. - The company monitors the therapeutic development reporting unit for potential impairment or recoverability of goodwill and intangible assets[565]. - Major risks and uncertainties are associated with the timely and successful completion of IPR&D projects, including regulatory approvals and clinical trial efficacy[565]. - The eventual realized value of acquired IPR&D projects may vary from their estimated fair values due to uncertainties in development and commercialization[565]. Off-Balance Sheet Arrangements - The company does not currently have any off-balance sheet arrangements that could materially affect its financial condition[569]. - The company’s investment policy aims to minimize the potential risk of principal loss through investments in fixed-rate interest-earning securities[571]. - The company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars, primarily exposing it to risks in the Chinese yuan[573].