Financial Performance - Total revenues for Q1 2025 were 3.029billion,adecreaseof43.145 billion in Q1 2024[4] - GAAP net income for Q1 2025 was 809million,representinga12722 million in Q1 2024[4] - Non-GAAP net income for Q1 2025 was 928million,adecreaseof171.116 billion in Q1 2024[4] - Total revenues for the quarter were 3,028.7million,adeclineof3.73,145.0 million in the prior year[39] - Net income for the quarter was 808.7million,representinganincreaseof12.0722.0 million in the same quarter of 2024[39] - Non-GAAP net income was 928.4million,downfrom1,115.9 million year-over-year[40] - Free cash flow for the quarter was 815.8million,adecreasefrom1,378.6 million in the same period last year[41] Sales Performance - Dupixent global net sales increased by 19% to 3.67billioninQ12025comparedtoQ12024[5]−EYLEAHDU.S.netsalesincreasedby54307 million in Q1 2025, while total EYLEA HD and EYLEA U.S. net sales decreased by 26% to 1.04billion[5]−TotalnetproductsalesforEYLEAHDandEYLEAreached1,900.6 million, a decrease of 16% compared to 2,251.0millioninthepreviousyear[44]−Dupixentgeneratednetproductsalesof3,665.6 million, reflecting a 19% increase from 3,076.8millionintheprioryear[44]−Libtayo′snetproductsalesamountedto285.1 million, an 8% increase from 263.9millionyear−over−year[44]−Kevzarasawnetproductsalesof116.4 million, representing a 24% increase compared to 94.1millioninthepreviousyear[44]−Otherproductsgeneratednetsalesof54.6 million, also a 24% increase from 44.2millionyear−over−year[44]−EYLEAHDsalesintheU.S.were306.8 million, a significant increase of 111% from 215.2millioninthepreviousyear[44]−TotalEYLEAsalesintheU.S.were1,042.8 million, down from 1,401.6million,indicatinga161.183 billion in Q1 2025, driven by higher profits from Dupixent sales[20] - The company records its share of profits from global sales of Dupixent and Kevzara within Collaboration revenue, reflecting strong international performance[45] - The company pays royalties on global sales of Libtayo and Praluent, contributing to its revenue streams[45] - The company does not include net product sales of ARCALYST in its reported figures, as those are recorded by Kiniksa[45] Expenses and Margins - In Q1 2025, GAAP R&D expenses increased to 1,327million,a61,248 million in Q1 2024[21] - GAAP SG&A expenses decreased to 633million,an8689 million in Q1 2024[21] - GAAP gross margin on net product sales was 81%, down from 86% in Q1 2024[21] - Regeneron's gross margin on net product sales was 81%, down from 86% in the same quarter of 2024[41] Tax and Shareholder Returns - The GAAP effective tax rate (ETR) for Q1 2025 was 10.6%, up from (3.0%) in Q1 2024[23] - The effective tax rate (ETR) for GAAP was 10.6%, compared to a negative 3.0% in the prior year[41] - A new share repurchase program was authorized for up to 3.0billion,with1.052 billion repurchased in Q1 2025[24] - The company declared a cash dividend of 0.88pershare,payableonJune6,2025[25]FutureOutlookandInvestments−ThecompanyannouncedongoinginvestmentsininfrastructureandmanufacturinginNewYorkandNorthCarolinaexpectedtoexceed7 billion[5] - The FDA accepted priority review for EYLEA HD sBLA for retinal vein occlusion and monthly dosing, with a target action date of August 19, 2025[5] - The company has approximately 45 product candidates in clinical development, with several pivotal data readouts expected later this year[6] - A 10-year agreement with FUJIFILM Diosynth Biotechnologies was announced to nearly double the company's large-scale manufacturing capacity in the U.S.[15] - Full year 2025 GAAP R&D guidance remains unchanged at 5.560–5.795 billion[26] - The updated GAAP gross margin on net product sales guidance is now 83%–84%, down from the previous 84%–85%[26] - The company utilizes non-GAAP measures for better evaluation of operating performance, excluding certain non-cash items[28] Investments and Securities - The company recognized net unrealized gains on equity securities of 140millioninQ12025,comparedtonetunrealizedlossesof196 million in Q1 2024[22] - Cash and marketable securities totaled 17,625.7millionasofMarch31,2025,aslightdecreasefrom17,912.6 million at the end of 2024[38] - Total assets decreased to 37,545.2millionfrom37,759.4 million at the end of the previous year[38]