CVS Health is exploring an acquisition of value-based primary care chain Oak Street Health, according to a Monday Bloomberg report. The two are in ongoing talks and could reach a deal within weeks that values Oak Street at more than $10 billion including debt, according to Bloomberg. Talks could still end without a deal. But shares in Oak Street, which serves mostly seniors on Medicare, rose more than 32% in aftermarket trading following the news.

Drugstore chain owner CVS has been expanding its products beyond managing health and pharmacy benefits with acquisitions in recent years, including its $8 billion buyout of home healthcare service company Signify Health last year. CVS had also expressed interest in expanding into the primary care space, and was reportedly among the bidders to acquire primary care provider Cano Health before backing out. Earlier on Monday, CVS said it expects to exceed its full-year 2022 revenue forecast range of $309 billion to $314 billion.