CUSIP No. 76029N106 13G Exhibit 99.1

AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of Common Stock of Replimune Group, Inc.

Dated: February 13, 2020

OMEGA FUND IV, L.P.
BY:	Omega Fund IV GP, L.P.
ITS:	GENERAL PARTNER
BY:	Omega Fund IV GP Manager, Ltd.
ITS:	GENERAL PARTNER
By:	/s/ Anne-Mari Paster
	Director
OMEGA FUND IV GP, L.P.
BY:	Omega Fund IV GP Manager, Ltd.
ITS:	GENERAL PARTNER
By:	/s/ Anne-Mari Paster
	Director
OMEGA FUND IV GP MANAGER, LTD.
By:	/s/ Anne-Mari Paster
	Director
/s/ * Anne-Mari Paster, as Attorney-in-Fact
Otello Stampacchia
/s/ Anne-Mari Paster
Anne-Mari Paster, as Attorney-in-Fact