The owner of the United States' largest pharmacy benefit manager (PBM) is declining to cover Gilead Sciences’ long-acting HIV prevention breakthrough, at least for now. | CVS Health, the parent of PBM juggernaut CVS Caremark,

Gilead Needs Insurers to Cover New HIV Prevention Shot. CVS Isn’t Paying. Executives at Gilead Sciences, the biotech behind a long list of HIV treatments and preventative medicines, have spoken with great optimism in recent weeks about the prospects that insurers will cover Yeztugo, their new HIV prevention shot .

Shares of Gilead Sciences, Inc. (GILD) tumbled 2.2% on Aug. 21, after pharmacy benefit manager CVS Health (CVS) decided not to add the former’s new HIV prevention drug, Yeztugo (lenacapavir), to its commercial plans for now.