Summit Therapeutics is getting a $2 billion investment from AstraZeneca. The stock rose 17% to $18.08 in after-hours trading Monday.

Sangoma Technologies is set to be acquired by BRC in a deal that values the company at $204 million. Shares climbed 39% to $4.98 after the bell.

Navitas Semiconductor got an Army grant to develop semiconductor technology. The stock gained 14% to $13.40.