TEM, BNTX, MRVI, RGEN, NVAX Stock Rallies As Moderna-Merck Cancer Vaccine Clears Late-stage Trial

A Dutch court ruled in favor of Halozyme Therapeutics, ordering Merck & Co. to halt sales of injectable Keytruda in eight European markets. The court found Merck infringed Halozyme's patent for a rapid drug delivery technology. Merck disputes the ruling and is reviewing its options. Keytruda SC is crucial for Merck's growth as patents on its original version expire later this decade.

Moderna Inc. (MRNA) shares rose 4.78% on October 7, 2026, driven by positive mRNA pipeline data and upcoming inclusion in the Nasdaq-100 index. The company reported quarterly revenue of $1.92B, but with significant losses. Traders are watching MRNA for its potential as a growth platform with catalysts like the index inclusion and cancer vaccine developments.

Moderna Inc. (MRNA) stock rose 4.82% after being added to the Nasdaq-100 index. The company reported a net loss of $782M but has strong cash reserves. Positive data for its cancer vaccine and a new COO appointment also influenced trading. MRNA's stock has been volatile, with a recent uptrend and a 6-7% drop on the management change news.

Halozyme won a Dutch court order against Merck, halting the sale and production of Keytruda SC in eight European markets. The ruling found Merck infringed Halozyme's patent for under-the-skin drug delivery. Merck plans to evaluate next steps and disputes the decision. Halozyme has also sued Merck in the U.S. and Germany.

Tempus Inc. (TEM) expanded its collaboration with Moderna (MRNA) and Merck (MRK) to support the development of a cancer vaccine. Tempus will manage sample collection and provide NGS services. The company also partnered with Bristol Myers Squibb (BMY) to improve clinical trial design. Additionally, Tempus acquired Personalis (PSNL) for $1.5 billion to enhance cancer monitoring. TEM shares were down 1.94% to $70.58 at the time of publication.

Halozyme Therapeutics won a court order blocking Merck from manufacturing and distributing a formulation of its cancer drug, Keytruda SC, in several European markets. The Dutch patent court ruled Merck infringed Halozyme's patent, following a similar injunction in Germany. Merck disputes the ruling and plans to appeal.