Blueprint Medicines, 45, Sidney Street, University Park, Cambridgeport, Cambridge, Middlesex County, Massachusetts, 02139, United States
Sanofi
SCHEDULEDDate confidence: SCHEDULEDGiven as scheduledHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all SCHEDULED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterin 5 daysGiven as scheduled, per the Massachusetts WARN tracker (mass.gov[2], week ending 18 Sept 2026): "Blueprint Medicines Corporation (aka Sanofi Company Blueprint) Cambridge, MA ... 10/9/2026 - 6/25/2027 229"; the Boston Globe via STAT: positions "will be cut between Oct. 9 and late June 2027".
A year after its $9.1 billion takeover, Sanofi is laying off 229 former Blueprint Medicines staff and closing Blueprint's two Sidney Street offices in Cambridge, with separations from 9 October 2026 to late June 2027.
