Pfizer Inc.’s $11.6 billion deal for migraine specialist Biohaven Pharmaceutical has kindled expectations on Wall Street that the transaction may usher in more buyouts as cash-flush drugmakers look to snap up beaten-down smaller biotechs.

Novavax

Novavax Inc.’s shares plunged nearly 20 percent in premarket trading on May 10 due to uncertainty over global demand for the company’s COVID-19 vaccine following a slow start to deliveries.

Pfizer

Pfizer Inc. maintained sales forecasts for the company’s pandemic products on May 3 after a series of hikes to revenue projections for its COVID-19 vaccine in 2021, in a sign that dizzying growth has slowed.

The U.S. Food & Drug Administration declined to approve two China-tested cancer treatments on Monday, saying one of the companies – Hutchmed Ltd. – needs to test its drug for the U.S. population in a diverse multi-regional trial.

Pfizer Inc. on April 29 said a large trial found that the company’s COVID-19 oral antiviral treatment Paxlovid was not effective at preventing coronavirus infection in people living with someone infected with the virus.

Gilead Sciences Inc. announced that first-quarter 2022 revenue rose 3 percent, helped by sales of the HIV drug Biktarvy and the COVID antiviral Veklury, but reported a net loss as the biotech company wrote down the value of its 2020 acquisition of Immunomedics following recent trial results for the cancer medicine Trodelvy.

The U.S. Food and Drug Administration on April 28 issued a long-awaited proposal to ban menthol cigarettes and flavored cigars, a major victory for anti-smoking advocates but one that could face stiff opposition from Big Tobacco.

An experimental treatment from Shionogi & Co. Ltd. has shown rapid clearance of the virus that causes COVID-19, according to new data, the Japanese drug maker said on April 24.

Bristol Myers Squibb

Nektar Therapeutics said on April 14 the company had stopped all clinical trials involving the drug developer’s key cancer drug bempegaldesleukin following its failure in multiple studies, dragging Nektar shares down 23% in after-market trading.

Shares of Veru Inc. soared nearly 200 percent after the Florida-based company announced its Phase III COVID-19 antiviral treatment was halted early based on positive efficacy following an Independent Data Monitoring Committee’s recommendation.