# Moderna’s stock tumbles after reported leak of data for cancer vaccine

- Source: MarketWatch
- Published: 2026-10-22T18:35:00+00:00
- Category: Markets
- Original: https://www.marketwatch.com/story/modernas-stock-tumbles-after-reported-leak-of-data-for-cancer-vaccine-dcc897c1?mod=mw_rss_topstories
- Canonical: https://groundlevelnews.com/story/moderna-s-stock-tumbles-after-reported-leak-of-data-for-cancer-vaccine-6892eb/

Moderna and Merck are expected to share the Phase 3 data for their experimental cancer vaccine this weekend at a medical conference.

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