- Start
- Oct 9, 202675% CONFIDENCEfrom the source
- End
- Jun 25, 202775% CONFIDENCEfrom the source
Sanofi Begins Cutting 229 Blueprint Medicines Jobs in Cambridge
- Sanofi is laying off 229 former Blueprint Medicines employees in Cambridge and closing Blueprint's facilities at 45 and 38 Sidney Street, with remaining staff moving to Sanofi's East Cambridge office[1]
- Sanofi said the cuts follow integration decisions after the July 2025 acquisition and that those affected had already been informed[1]
- All 13 members of Blueprint's pre-deal leadership team have left in the past year; Blueprint's Ayvakit earned Sanofi €367 million in net sales in the first half of 2026[1]
- Sanofi bought Blueprint for $9.1 billion; the positions will be cut between 9 October 2026 and late June 2027, per the filing with the state's Executive Office of Labor and Workforce Development[3]
- The state's WARN tracker lists the notice as received 7 August 2026, covering 229 employees in Cambridge with layoffs dated 10/9/2026 to 6/25/2027[2]
References 382% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]75%pharmaphorum.com/news/sanofi-lay-229-blueprint-employees-close-officespharmaphorum.com· Posted Sep 24, 2026· Starts Oct 9, 2026 ✓· Ends Jun 25, 2027 ✓· 35% of score
Given 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".
- [2]85%Worker Adjustment and Retraining Notification Act (WARN) layoff and closure updatesmass.gov· Published Sep 18, 2026· 34% of score
Massachusetts' own WARN tracker row for Blueprint Medicines (aka Sanofi Company Blueprint): received 8/7/2026, 229 employees, 10/9/2026 - 6/25/2027.[1]
- [3]88%Sanofi to lay off 229 workers in Mass., a year after Blueprint Medicines acquisitionstatnews.com· Published Aug 17, 2026· 30% of score
Boston Globe story carried by STAT (open lede): 229 layoffs from the state filing, cut between Oct. 9 and late June 2027.[1]
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