CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of Rubius Therapeutics, Inc. of our report dated April 13, 2018 relating to the financial statements, which appears in Rubius Therapeutics, Inc.’s Amendment No. 2 to the Registration Statement on Form S-1 (No. 333-225840).
/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
July 17, 2018