Here's a list of key deals reported across sectors this week:

Elon Musk disclosed late on Friday that his generative artificial intelligence startup xAI has acquired his social network X in an all-stock deal.

bluebird bio (NASDAQ:BLUE) said it has received an unsolicited offer from Ayrmid Pharma to buy the company for a sum significantly higher than a take-private deal from private equity firms The Carlyle Group (NASDAQ:CG) and SK Capital Partners in February.

Nvidia (NASDAQ:NVDA) is said to be nearing a deal to acquire Lepton AI, an artificial intelligence startup that rents out servers powered by Nvidia’s AI chips.

Dollar Tree (NASDAQ:DLTR) has agreed to divest its Family Dollar business segment to private-equity investors Brigade Capital Management and Macellum Capital Management for $1,007.0 million.

Brand management firm Marquee Brands is in exclusive discussions with Levi Strauss (NYSE:LEVI) to purchase the Dockers brand.

U.S. telecom AT&T (NYSE:T) is in discussions to buy the consumer fiber business of Lumen Technologies (NYSE:LUMN).

VivoPower International (NASDAQ:VVPR) +215.9% in Monday's trading after saying it received an unsolicited non-binding, all-cash takeover proposal from Abu Dhabi headquartered Energi Holdings Ltd. at a $120M enterprise value.

Golden Ocean (NASDAQ:GOGL) rose 3% amid a report that CMB.Tech (NYSE:CMBT) may be working on a deal for the dry bulk shipper.