Eli Lilly is the dominant player in incretin obesity and diabetes care. Tirzepatide — Mounjaro for type-2 diabetes, Zepbound for obesity — generated the bulk of 2025 growth, and SURMOUNT-5, the first definitive Phase 3B head-to-head against semaglutide, read out 21.6% mean weight loss at 72 weeks versus semaglutide's 15.4%. Q1 2026 revenue reached $19.8 billion (+56% YoY) on Mounjaro $8.66B (+125%) and Zepbound $4.16B (+80%); Lilly raised 2026 guidance to $82–85B on April 30 and the stock climbed 6.11% on May 1. On May 4, an FAERS hepatic-failure case for Foundayo surfaced, sending shares down 3% premarket before recovering on Lilly's safety-data response and an RBC 'baseline noise' defense.
The next layer determines 2027 and beyond. Orforglipron, marketed as Foundayo, became the first small-molecule oral GLP-1 cleared for obesity in April 2026 and reached roughly 20,000 patients and more than 8,000 prescribers in its first three weeks, though Wegovy pill outpaced it ~20× in early-May IQVIA volume. Retatrutide, the GLP-1/GIP/glucagon triple agonist, posted its first Phase 3 type-2 diabetes readout (TRANSCEND T2D1: A1c down 1.7–2.0 pts, 25–37 lb mean weight loss) on the April 30 call alongside the prior TRIUMPH-4 obesity-with-knee-osteoarthritis data. The retatrutide MASLD Phase 3 (NCT06859268) is enrolling, building on 86% Phase 2 liver-fat reduction. LillyDirect handles self-pay distribution.
The company has spent 2024 and 2025 building peptide CDMO capacity to support both branded volume and the long shadow of the compounding fight. Stories here track the pipeline, deals, and the share-price moves that follow them.
In its fourth commercial week (April 27–May 1), Eli Lilly's Foundayo (orforglipron) recorded 7,335 prescriptions per IQVIA, Citi told clients May 8, calling the early launch 'off to a solid start' and modeling $146M in Q2 revenue and $1.6B for full-year 2026. Citi flagged that IQVIA captures retail and partial telehealth data but likely understates Lilly Direct and the 12+ telehealth firms representing roughly 35% of launch volume; Lilly executives have cited 20,000 patients now on Foundayo. For comparison, Citi's same note pegged Wegovy pill at 440,410 prescriptions in the week ending May 1, with oral semaglutide accounting for 33% of all Novo obesity referrals.
Eli Lilly, with the Indiana Biosciences Research Institute, has disclosed an ADA Scientific Sessions Late-Breaking Poster slot (Poster 2839-LB, May 29) for a single peptide molecule that simultaneously activates five receptors: GLP-1, GIP, glucagon, amylin, and calcitonin. Lead investigator Jonathan Douros, PhD, will present rodent data showing weight-loss superiority over retatrutide in Lilly-sponsored animal studies. The compound is distinct from the DiMarchi/Tschöp/Müller GLP-1R/GIPR/PPARα/γ/δ quintuple agonist published in Nature on April 30 — that one is a peptide-drug conjugate combining GLP-1/GIP with the pan-PPAR agonist lanifibranor, while the Lilly + Indiana Biosciences molecule appears to be a single peptide hitting all five receptors directly. Both signal that the obesity-pharmacology ceiling is moving past the triple-agonist generation.
Barclays analyst Emily Field raised her price target on Eli Lilly to $1,400 from $1,350 May 5 and reiterated an Overweight rating, citing tirzepatide momentum continuing to outpace the GLP-1 class and easing concerns around the Foundayo launch trajectory. LLY stock had recovered roughly 11% off the May 4 Foundayo FAERS-driven dip to about $966 by mid-week. Barclays simultaneously trimmed its 2026 Foundayo revenue estimate to approximately $1B (vs. ~$1.4B consensus) on the early IQVIA gap to Wegovy pill, but the higher headline target reflects confidence that Mounjaro and Zepbound's volume growth more than absorbs Foundayo's slower start.
Multiple Wall Street firms raised LLY price targets in the May 5–6 window. Cantor Fitzgerald lifted its target to $1,230, BofA to $1,294, and the broader analyst consensus by 19 firms now sits at $1,228 (24.15% upside over 12 months) per the May 6 update, with a Buy consensus rating. The driver: tirzepatide's Q1 +125% global growth, the Mounjaro/Zepbound volume re-rating, the May 1 stock recovery from the Foundayo hepatic-failure FAERS report, and Lilly's response that no DILI signal exists across the 11,000-patient ACHIEVE+ATTAIN program. RBC Capital framed the FAERS event as 'baseline noise.'
Eli Lilly stock has gained roughly 11% over the past week, recovering from the May 4 Foundayo hepatic-failure FAERS report-driven 3% premarket dip and consolidating gains from the April 30 Q1 beat. Per the May 6 analyst consensus across 19 covering firms, LLY now carries an average 12-month price target of $1,228 — implying 24.15% upside from current $966 — with a Buy consensus rating. The recovery framework: tirzepatide volume (+125% global Q1 growth) anchors the floor, retatrutide TRIUMPH program (seven Phase 3 readouts due in 2026) anchors the upside, the small-molecule manufacturing economics of Foundayo offset peptide CDMO bottlenecks, and Pfizer's MariTide/MET-097i and Novo's CagriSema higher-dose program don't read out until 2027.
Eli Lilly's retatrutide MASLD Phase 3 trial (NCT06859268) is enrolling, building on Phase 2 data that reported up to 86% liver-fat reduction at 48 weeks with 93% of 12 mg patients reaching normal liver fat. The MASLD trial will measure histological resolution of steatohepatitis without worsening fibrosis — the endpoint that drives FDA approval in the indication. The trial sits within the broader TRIUMPH program of seven Phase 3 retatrutide readouts due in 2026, after TRIUMPH-4 (28.7% mean weight loss with knee-osteoarthritis pain reduction) and TRANSCEND T2D1 (A1c down 1.7–2.0 pts in T2D). MASLD remains a regulatory test for incretins after Boehringer's survodutide LIVERAGE Phase 3 program.
An FDA Adverse Event Reporting System (FAERS) entry logged April 30 surfaced publicly May 4, documenting hepatic failure in a 56-year-old male patient on Foundayo (orforglipron). The case was marked for expedited review and could have occurred at or before April 15 — Foundayo only launched April 9. There have been 34 total Foundayo FAERS reports so far, with two considered serious. LLY traded down nearly 3% premarket — hitting roughly $936 — before recovering on Lilly's response. Foundayo's label carries a warning that the medication is 'not recommended for use in patients with severe hepatic impairment' (orforglipron is primarily hepatically metabolized), but mild and moderate liver impairment is allowed at standard dose.
Eli Lilly's Global Patient Safety team responded to the FDA's request for updated Foundayo safety information on May 4, concluding the FAERS event was 'not reasonably related to Foundayo.' The company pointed to the 11,000-participant ACHIEVE and ATTAIN program — followed for up to two years — where the liver safety profile of Foundayo was similar to placebo and active comparator medicines, with no cases of drug-induced liver injury observed and no hepatic safety signal detected. ACHIEVE-4 specifically included a thorough drug-induced liver injury (DILI) analysis with no hepatic signals, consistent with the 57% lower all-cause death rate (HR 0.43) seen versus insulin glargine in that arm.
RBC Capital reiterated its Outperform rating on Eli Lilly May 4 with the framing 'baseline noise, not a mechanistic safety signal,' and put the single Foundayo case in context against the broader GLP-1 class hepatic failure tally: Mounjaro 30 cases, Zepbound 2, Ozempic 33, Wegovy 15. Other Street analysts followed similar reasoning. The defense rests on the 11,000-patient clinical program and the absence of any DILI signal across two years of follow-up. The framing matters because the launch trajectory for Foundayo had already been challenged by IQVIA tracker data showing the Wegovy pill running roughly 20× ahead in retail prescriptions; a sustained safety overhang would compound the commercial pressure.
On the April 30 Q1 2026 call, Eli Lilly disclosed positive topline results from TRANSCEND T2D1, the first Phase 3 trial of retatrutide (triple GLP-1/GIP/glucagon agonist) in adults with type 2 diabetes. Compared with placebo, retatrutide lowered A1c by an average of 1.7 to 2.0 percentage points across doses and produced mean weight loss of 11.1 to 16.6 kilograms (25 to 37 pounds). The data complement the previously reported TRIUMPH-4 obesity-with-knee-osteoarthritis results (28.7% weight loss, 75.8% pain reduction). TRIUMPH-1, an 80-week obesity study, is the next retatrutide readout expected, with seven additional Phase 3 readouts still to come in 2026 ahead of a planned regulatory submission late 2026 or 2027.
On the April 30 call, Lilly USA executive Ilya Yuffa said roughly 20,000 patients are now on Foundayo (orforglipron) for obesity or overweight and more than 8,000 prescribers have written it. Notably, 80% of patients are new to the GLP-1 class and one-third of prescribers had not previously written an oral GLP-1, suggesting Foundayo is expanding the addressable market rather than purely cannibalizing injectables. Lilly also confirmed commercial access at two of the three largest U.S. pharmacy benefit managers effective mid-May. Active sales-force promotion only began the week of April 23, two weeks after broad supply-channel availability on April 9.
Eli Lilly shares climbed 6.11% on May 1 as the market digested the company's Q1 2026 print: $19.8B in revenue (+56% YoY), Mounjaro at $8.66B globally (+125%), Zepbound at $4.16B in U.S. sales (+80%), and reported EPS of $8.26 versus the $6.97 consensus. Multiple sell-side analysts revised price targets higher and reiterated or upgraded ratings, citing the strength of the cardiometabolic franchise and the $2 billion guidance raise to $82–85B. The reaction crystallized Lilly's positioning as the GLP-1 leader heading into Novo's May 6 Q1 print.
Fierce Pharma's Oral GLP-1 Tracker reported May 1 that Eli Lilly's Foundayo (orforglipron) reached 5,612 prescriptions in the week ending April 24 — its third full commercial week — up roughly 51% from Week 2's 3,707 scripts but still behind the Wegovy pill's comparable third-week run. RBC and other analysts continue to caution that 8–12 weeks of data are needed to read commercial trajectory through pharmacy-fill noise. On the Q1 earnings call, Lilly USA's Ilya Yuffa said roughly 20,000 patients are now on the drug for obesity or overweight, calling the early launch 'encouraging.'
Profluent, the Bezos-backed AI biotech, announced April 28 a multi-program research collaboration with Eli Lilly worth up to $2.25B in development and commercial milestones plus tiered royalties. Profluent will use its AI platform to design custom recombinases that integrate or modify large stretches of DNA at precise genomic loci, with the goal of generating site-specific gene-editing therapies for diseases of severe unmet need. The deal extends Lilly's diversification beyond peptide therapeutics, following a $1.12B Seamless Therapeutics recombinase deal in January 2026 and the closed Kelonia Therapeutics, Centessa, Orna, and Ajax acquisitions earlier in the quarter.
Eli Lilly reported Q1 2026 worldwide revenue of $19.8 billion, up 56% year over year on 65% volume growth partially offset by a 13% price decline. Mounjaro hit $8.66 billion globally (+125%), Zepbound delivered $4.16 billion in U.S. sales (+80%), and reported Q1 EPS jumped 170% to $8.26. Lilly raised 2026 revenue guidance by $2 billion at each end to $82–85 billion and lifted non-GAAP EPS guidance to $35.50–$37.00. The release also recapped five positive Phase 3 readouts, six new Phase 3 starts, and the closings of the Orna, Centessa, Colonia, and Ajax acquisitions in the quarter.
Eli Lilly's acquisition of Kelonia Therapeutics — announced April 20 with $3.25 billion upfront and up to $7 billion total including milestones — illustrates the company's broader pivot beyond GLP-1 weight-loss drugs. Kelonia develops in vivo CAR-T technology that reprograms patients' T-cells inside the body, eliminating the ex vivo cell-engineering step required by current CAR-T therapies. The deal joins Lilly's recent Centessa Pharmaceuticals (sleep) and Orna Therapeutics (cell therapy) acquisitions as part of a multi-vertical pipeline diversification. Transaction expected to close H2 2026.
Morningstar issued a pre-earnings note ahead of Eli Lilly's April 30 Q1 2026 report raising fair value to $870 from $770 following 2025 results and management guidance. Analysts project 27% top-line growth in 2026 and 20% in 2027, with double-digit growth through end of decade. Mounjaro/Zepbound represented 56% of total sales in 2025, projected to exceed 60% in 2026 with patent protection through 2036. The Q1 print will be the first read on Foundayo launch trajectory after the disappointing 1,390 / 3,707 prescription weeks 1-2.
Two of the largest obesity drug makers report this week: Eli Lilly (April 30) with Foundayo (orforglipron) launch trajectory and Mounjaro/Zepbound dynamics under scrutiny — Lilly previously guided 2026 sales of $80-83 billion (25% growth); and Novo Nordisk (May 6) facing 5-13% guided sales decline as semaglutide loses exclusivity in China, Brazil, Canada, and as the Wegovy pill ramps. Goldman analysts model Lilly's oral GLP-1 capturing 60% of the daily-oral segment by 2030; Novo's projected at 21%. The Foundayo Week 1-2 prescription tracker has shown a slow start.