X0202 SCHEDULE 13G 0001569064 XXXXXXXX LIVE Common Stock, par value $0.001 per share 03/31/2026 0001737953 Replimune Group, Inc. 76029N106 500 Unicorn Park Woburn MA 01801 Rule 13d-1(b) Suvretta Capital Management, LLC b DE 0.00 4221836.00 0.00 4221836.00 4221836.00 N 5.1 IA OO Aaron Cowen b X1 0.00 4221836.00 0.00 4221836.00 4221836.00 N 5.1 HC IN Replimune Group, Inc. 500 Unicorn Park, Woburn, MA, 01801 Suvretta Capital Management, LLC Aaron Cowen Suvretta Capital Management, LLC 540 Madison Avenue, 7th Floor New York, New York 10022 United States of America Aaron Cowen c/o Suvretta Capital Management, LLC 540 Madison Avenue, 7th Floor New York, New York 10022 Suvretta Capital Management, LLC - Delaware Aaron Cowen - United States N IA Suvretta Capital Management, LLC - 4,221,836 Aaron Cowen - 4,221,836 Suvretta Capital Management, LLC - 5.1% Aaron Cowen - 5.1% Suvretta Capital Management, LLC - 0 Aaron Cowen - 0 Suvretta Capital Management, LLC - 4,221,836 Aaron Cowen - 4,221,836 Suvretta Capital Management, LLC - 0 Aaron Cowen - 0 Suvretta Capital Management, LLC - 4,221,836 Aaron Cowen - 4,221,836 Y N All of the securities reported in this Schedule 13G are directly owned by advisory clients of Suvretta Capital Management, LLC. None of those advisory clients may be deemed to beneficially own more than 5% of the Common Stock, par value $0.001 per share. N Please see Exhibit B attached hereto. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit A - Joint Filing Agreement Exhibit B - Control Person Identification Suvretta Capital Management, LLC /s/ Andrew Nathanson 05/12/2026 Aaron Cowen /s/ Aaron Cowen 05/12/2026 * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his, her or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. To the extent that "ownership of 5 percent or less of a class" was indicated in Item 5, such response only applies to the Reporting Person(s) that indicated elsewhere herein that it beneficially owns five percent (5%) or less of the class.