We continue to believe that this TransMedics platform can support approximately 30,000 transplants by 2032, deriving more than $2 billion in top-line annual revenue with a healthy operating profile. Our capital allocation priority has always been, and it is unchanged and deliberate. We are focused on durable top-line growth ahead of near-term operating leverage. Turning to the quarter, second quarter 2026 with the strongest in our history in both revenue and case volume.

Total revenue of approximately $190 million, up approximately 21% year-over-year and approximately 9% sequentially. Transplant product revenue of $111 million, up approximately 16% year-over-year and approximately 3% sequentially. Service revenue of $79 million, up approximately 29% year-over-year and approximately 19% sequentially. Growth was led by liver, which was up approximately 28% year-over-year and approximately 7% sequentially.

Heart also grew approximately 6% year-over-year and approximately 23% sequentially, and we expect heart to continue to accelerate in the fourth quarter and beyond as we unlock ENHANCE Heart Part B. This growth is the clearest evidence yet that vertical integration of logistics is both a growth engine and a structural differentiator for TransMedics. Adjusted income from operation of approximately $25.8 million, or approximately 14% of revenue, delivered while continuing to fund our growth initiatives. We ended the quarter with approximately $473 million in cash and cash equivalent, giving us great confidence in our ability to self-fund our growth investment from the balance sheet and operations.

What went well
  • The second quarter of 2026 was the strongest in company history in both revenue and case volume, with total revenue of ~$190 million, up ~21% year-over-year and ~9% sequentially.
  • Service revenue grew ~29% year-over-year (~19% sequentially) to $79 million (41% of revenue), driven by market-share gains in TransMedics Logistics, which delivered ~$41 million (up ~39% year-over-year).
  • Liver revenue grew ~28% year-over-year and heart grew ~23% sequentially, with air-transport coverage of NOP missions improving to ~86% (from 82% in Q1), boosting operating efficiency.
  • Sequential gross margin improved ~140 basis points to 59.6%, led by service margin rising from ~27% to 35% on higher fleet utilization and double-shifting of aircraft.
  • Adjusted operating income was ~$25.8 million (13.6% margin) while funding growth initiatives, and the company ended the quarter with ~$473 million in cash to self-fund investments.
  • The company raised the low end of full-year 2026 revenue guidance (ex-PAD) to $737-$757 million (~22-25% growth) and closed the strategic PAD Aviation investment in Germany to seed a Pan-European logistics network.
What went wrong
  • Gross margin fell ~180 basis points year-over-year on a higher service-revenue mix plus temporary product-cost pressures (inventory provisioning and trial-related solution cost).
  • Full-year adjusted operating-margin guidance (ex-PAD) was cut to ~12.5%-14% from a prior ~16% (versus 18.5% in 2025), primarily reflecting higher planned OCS Kidney investment.
  • PAD Aviation's initial consolidation will be dilutive to both gross and operating margin beginning in Q3, and management could not yet quantify its P&L impact.
  • ENHANCE Part B (heart) and DENOVO (lung) trials contributed minimally, with only a handful of cases each, as approvals remain gated by FDA timelines; adjusted OpEx rose ~46% year-over-year.
  • Management cautioned that August seasonality (vacations) and the second-half service-margin normalization mean Q3 volume and margins may not match Q2's strength.

Guidance Changes

MetricPeriodCurrent guidance
Full-year 2026 revenue (ex-PAD)FY2026$737M-$757M (~22-25% growth); assumes no ENHANCE Part B / DENOVO contribution
Full-year adjusted operating margin (ex-PAD)FY2026~12.5%-14% (reduction reflects higher OCS Kidney investment)
Second-half gross margin (ex-PAD)2H 2026~59% (service margin normalizing but above historical levels)
Long-term gross marginnext 2-3 yearsbroadly around current levels, trending toward ~60%+ as OCS Kidney/Gen 3.0 scale
Full-year interest expenseFY2026~$29M (incl. ~$15.3M HQ-related), partially offset by ~$12M interest income
Full-year effective tax rateFY2026~26%
PAD Aviation contributionFY2026not yet quantified; dilutive near-term; guidance to be provided in Q3

Performance Breakdown

MetricYoYNote
Total revenue +21% to ~$190M (+9% QoQ) Record OCS case volume plus strong clinical and logistics services growth.
Transplant product revenue +16% to ~$111M (+3% QoQ) Led by liver.
Service revenue +29% to ~$79M (+19% QoQ) Broader TransMedics Logistics adoption, market-share gains and pricing adjustments to offset higher fuel cost.
Liver revenue +28% (+7% QoQ) Continued strong OCS liver adoption; ~$148M in the U.S.
Heart revenue +6% (+23% QoQ) ~$33M in the U.S., expected to accelerate in Q4 as ENHANCE Heart Part B unlocks.
TransMedics Logistics revenue +39% to ~$41M (+30% QoQ) Market-share gains (including a competitor's lost major account) plus efficiency.
Total gross margin 59.6% (+140 bps QoQ, -180 bps YoY) Sequential gain from service margin (27%->35%); YoY decline from service mix and temporary product-cost pressures.
Adjusted operating margin 13.6% Planned increase in strategic investment plus gross-margin factors.
Adjusted diluted EPS $0.44 Adjusted net income of $16.2M on ~40.7M diluted shares.

Earnings Call Themes & Trends

TopicPrevious mentionCurrent periodTrend
Growth-over-leverage capital allocationPrioritize durable top-line growthUnchanged and deliberate: funding OCS Kidney, next-gen OCS Gen 3.0, ENHANCE/DENOVO and international expansion over near-term operating leverage; investors weighing this against margins amid stock volatility, which management addressed directly with data.
OCS Kidney programFramed as the single largest addressable segment (21,000+ U.S. deceased kidney transplants/year, ~9,200 recovered-but-not-transplanted, ~$10B CMS waiting-list cost); first portable normothermic oxygenated kidney perfusion system on Gen 3.0; first pre-IDE FDA meeting held, first clinical experience targeted late 2027.
ENHANCE Part B (heart) & DENOVO (lung)Trials progressingIDE supplement incorporating CHOPS submitted and under FDA review, expected approval late Q3/early Q4 with Lung IDE to follow; targets ~2,200 U.S. DBD hearts plus 2,000-5,000 incremental heart/lung cases; ENHANCE Part A to complete before year-end; CHOPS 510(k) a H1 2027 horizon.
International / European expansionEarly Europe entryReplicating U.S. NOP/logistics model starting in Italy (regional machine-perfusion and services budgets ratified, effective late 2026/early 2027); competing in Italian logistics tenders; pursuing large existing logistics budgets in Netherlands, France and U.K.; viewed as a 2027+ catalyst.
PAD Aviation / European logisticsClosed July 1 investment in Paderborn, Germany (central 2-hour flight radius) for the aviation license, 40+ pilots and fleet to compete for European transplant-logistics tenders; a slower, more capital-cautious ramp than the U.S. Summit Aviation deal; not active in Germany itself (no DCD, reimbursement pending).
Vertically integrated moatOCS + NOP + logistics + digitalFour hard-to-replicate assets (OCS, National OCS Program, Transplant Logistics Network, NOP Connect digital ecosystem); added Donor and Recipient Clinical Screening Coordination Services July 1 (piloting with a major Boston health system) to run more of the transplant workflow on the platform.
OPO recertification / CMSAwaiting CMS ruleAwaiting a CMS decision (hoped in 2H 2026) on whether outside entities can become OPOs; a binary opportunity not embedded in any growth guidance; TransMedics ready to compete for DSAs but will grow regardless.
Long-term targets10,000 transplants by 2028; $2B+ revenue by 2032Reaffirmed ~10,000 transplants by 2028 on the current heart/lung/liver platform (excluding CHOPS and kidney); kidney and international drive 10,000->20,000 by 2030-2032 and the ~30,000-transplant / $2B+ revenue vision.

Q&A Summary

Allen Gong (JPMorgan) asked what drove service revenue to outpace product, questioning dry-run dynamics.
Hassanein said there was no increase in dry-run pace; the service outperformance came from logistics market-share gains, efficiency, margin improvement, pricing adjustments for higher costs, and new centers.
Josh Jennings (TD Cowen) asked about U.S. transplant market growth dynamics and a CHOPS 510(k)/commercial update.
Hassanein said Q3 started strong (July was the highest aviation month) but cautioned on August seasonality, attributing growth to new centers, initiatives and logistics/clinical share gains; CHOPS focus is the IDE first, with 510(k) a H1 2027 horizon unlocking ~2,200 U.S. DBD heart cases and potential beyond heart.
Bill Plovanic (Canaccord) asked to unpack the new donor/recipient screening service and what gives confidence the ENHANCE/DENOVO IDEs are near the goal line.
Hassanein said the screening service (piloting with a major Boston system) harmonizes a fragmented workflow and gives visibility to the national donor pool; on the IDEs he said FDA owns the timeline, TransMedics has done what was asked, heart is ahead of lung, and his real focus is on getting actual cases done post-approval, not the IDE date itself.
Matthew Mardula (William Blair) asked about ENHANCE/DENOVO trial completion and international growth specifics.
Hassanein said ENHANCE Part A completes before year-end while Part B (heart) and DENOVO (lung) have only a handful of cases pending IDE-supplement approval, targeting enrollment within 2027; he clarified Italy secured a regional budget (not Europe-wide reimbursement) and that near-term European opportunity is competing for large existing logistics tenders in Netherlands, France and the U.K.
Sam (Piper Sandler) asked about planning for the CMS OPO recertification opportunity and the durability of the strong flight performance.
Hassanein said TransMedics is waiting on CMS (hoped 2H 2026), ready to compete for DSAs but not counting on the binary outcome; the flight growth is primarily market-share gains (including a competitor's lost major account) while double-shifting drove the margin improvement, and he views the momentum as durable.
Patrick Wood (UBS) asked why Germany/PAD was the right move after Italy given no DCD there.
Hassanein clarified TransMedics is not operating in Germany (no DCD, reimbursement pending) but invested in PAD Aviation in Paderborn for its central location (any European donor site within a 2-hour flight) as the enabling aviation infrastructure for the European platform.
Daniel Markowitz (Evercore ISI) asked what the first-half consulting work found and the PAD investment level.
Hassanein said the diligence revealed significant European budgets for transplant logistics and donor-pool utilization plus a roadmap of upcoming tenders; Hernandez said PAD's P&L impact is not yet quantifiable and guidance will come in Q3, with Hassanein cautioning PAD is a slower, less capital-intensive ramp than Summit Aviation.
Young Li (Jefferies) asked for Modernization Act / OPO milestones and how OPO pressures evolved.
Hassanein said there are no updates as CMS holds the timeline (and may delay or exclude outside entities), that TransMedics will grow regardless, and that he does not see OPO dynamics materially impacting the numbers, staying laser-focused on the company's own adoption.
Suraj Kalia (Oppenheimer) asked how TransMedics defines the value of its new services and to reconcile the 10,000-organs-by-2028 target.
Hassanein said the 10,000-by-2028 target (set at JPMorgan in January 2023) is on the current heart/lung/liver platform excluding CHOPS and kidney, with kidney driving 10,000->20,000 by 2030-2032; value is defined as efficientizing a fragmented, costly transplant workflow via technology, digital ecosystem and a command center to become a trusted partner.
Mike Matson (Needham) asked what exactly PAD Aviation provides.
Hassanein said PAD provides the license to operate in Europe/internationally, 40+ pilots and an efficient (largely leased) fleet, letting TransMedics compete for European logistics tenders with minimal early capex and transition from charter to 100% transplant missions as demand ramps.
David Rescott (Baird) asked whether the service-vs-product growth delta came from specific organs and whether the higher service dollars persist.
Hassanein said service goes hand-in-hand with OCS use across liver, heart and lung (the delta potentially dry runs), and Hernandez added service margin should normalize in the second half (above historical levels but below Q2) since it is closely tied to volume, which dips in Q3.
Tom Stephan (Stifel) asked for directional 2027 operating-margin/EPS commentary.
Hernandez said 2027 operating margin depends on scale, gross margin and the OCS 3.0/Kidney efficiency benefits, but it is too early to forecast until the second half unfolds (some delayed 2026 clinical investment shifts into 2027), with guidance to come in Q4.

More on TransMedics Group, Inc.

Reported 2026-08-04 · figures from the TransMedics Group, Inc. Q2 2026 earnings call.

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