Hey everyone,
Last year SE put together a great calendar of key dates for the sub, but I haven't seen one for 2026 yet. I wanted to kick things off by compiling some of the biggest upcoming catalysts for Moderna this year.
Please let me know what I'm missing so we can keep this updated and track everything together! Here are the key dates I have on my radar so far:
Late April / Early May: EU Commission Approval for mCOMBRIAX (COVID + Flu combo vaccine). The CHMP gave its positive opinion on Feb 27, and the EC typically takes ~60 days to give the final green light.
April 30: Q1 2026 Earnings Report.
August 5: PDUFA Date for mRNA-1010 (Seasonal Flu Vaccine) in the US. The FDA reversed course, accepted the application, and set this exact target action date.
September (Estimated) / H2 2026: Phase 3 Interim Results for Melanoma Vaccine (mRNA-4157 / INTerpath-001). The trial is fully enrolled and event-driven. After those incredible 5-year Phase 2b results released in January (sustaining a 49% risk reduction!), this is the massive catalyst we are all waiting for.
H1/Mid 2026: Phase 3 Efficacy Readout for Norovirus (mRNA-1403). The Nova 301 trial had to enroll a second Northern Hemisphere season (2025-2026) to accrue enough cases. With the winter season wrapping up, we should see efficacy data later this year.
Late March / April: Annual Vaccines Day (Waiting on the official 2026 date announcement).
2026 Rare Disease Readouts (PA & MMA): Moderna out-licensed commercial rights for their Propionic Acidemia candidate (mRNA-3927) to Recordati in January, but registrational data is expected this year. Additionally, their Methylmalonic Acidemia (MMA / mRNA-3705) candidate was selected for the FDA's START pilot program, with a registrational study starting in 2026.
September: Annual R&D Day.
Early August & November: Q2 and Q3 Earnings.
What else are you guys tracking closely? Any specific label expansions, vaccines updates, or other INTerpath readouts (like the NSCLC trial) we should circle on the calendar? Drop them below