BPMC Blueprint Medicines Corporation

Item 5.02. Departure of Directors or Certain Officers; Election of Directors, Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On January 20, 2022, Blueprint Medicines Corporation (the “Company”) announced that, effective April 4, 2022 (the “Transition Date”), Philina Lee, currently Senior Vice President, Head of Portfolio Strategy, has been appointed by the Board of Directors to serve as the Company’s Chief Commercial Officer.

In connection with this transition, on January 19, 2022, Dr. Lee entered into an amended and restated employment agreement, effective as of the Transition Date (the “Lee Agreement”), pursuant to which she will receive an annual base salary of $440,000 and her target annual incentive compensation shall be 50% of her base salary, weighted 75% on Company performance and 25% on Dr. Lee’s individual performance. For the period beginning on January 1, 2022 and ending on April 3, 2022 (the “Transition Period”), Dr. Lee is eligible to earn prorated incentive compensation under her existing employment agreement in connection with her services as Senior Vice President, Head of Portfolio Strategy during such period based on Dr. Lee’s target annual incentive compensation equal to 35% of her annual base salary as in effect during such period (which shall be weighed 50% on Company performance and 50% on Dr. Lee’s individual performance), provided Dr. Lee remains employed by the Company on the day such incentive compensation is paid. In connection with her appointment, Dr. Lee was granted options to purchase 17,500 shares of the Company’s common stock, 25% of which will vest upon the one year anniversary of the earlier of (a) the date on which annual equity awards are granted to the Company’s employees for 2022 and (b) the Transition Date (the “Grant Date”) and 75% of which shall thereafter vest ratably in monthly installments over 36 months subject to continued service through each applicable vesting date, and 8,750 restricted stock units, which shall vest ratably in annual installments over four years beginning on the one year anniversary of the Grant Date subject to continued service through each applicable vesting date. Dr. Lee’s existing equity awards will continue to vest in accordance with their terms.

The foregoing description of the Lee Agreement is qualified in its entirety by reference to the complete text of such agreement, which is attached as Exhibit 10.1to this Current Report on Form 8-K, and incorporated by reference herein.

Dr. Lee joined Blueprint Medicines in August 2014 as Senior Director, New Product Strategy and Development and subsequently held multiple commercial roles with responsibility for strategy, operations, patient services, marketing and the precision medicine field team. During her tenure, she has been instrumental in building the company’s portfolio from research-stage onwards, laying the groundwork for the commercial strategy that is driving the successful launches of AYVAKIT® (avapritinib) and GAVRETO® (pralsetinib). Since January 2021, Dr. Lee has served as Senior Vice President, Head of Portfolio Strategy and Program Management, responsible for providing strategic and operational leadership across the company’s portfolio. Previously, Dr. Lee held product strategy and marketing roles of increasing responsibility at Algeta, Sanofi and Genzyme. Dr. Lee also serves on the board of Fusion Pharmaceuticals, as a member of both the Nomination and Governance committee and Research and Development committee. Dr. Lee earned a B.S. in Biochemistry from the University of Alberta, and a Ph.D. in Cell Biology from the Massachusetts Institute of Technology. No arrangement or understanding exists between Dr. Lee and any other person pursuant to which Dr. Lee was selected to serve as Chief Commercial Officer of the Company. There have been no related party transactions between the Company or any of its subsidiaries and Dr. Lee reportable under Item 404(a) of Regulation S-K. Dr. Lee does not have a family relationship with any of our directors or executive officers.