Historical shareholding details of BlackRock Russell 2000® Growth holdings in Mersana Therapeutics Inc (MRSN)

Monthly changes of BlackRock Russell 2000® Growth shareholding in Mersana Therapeutics Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Blackrock Russell 2000® Growth	2,685	0.00%

Mar 31, 2025	Blackrock Russell 2000® Growth	13,224	0.01%

Dec 31, 2024	Blackrock Russell 2000® Growth	13,383	0.01%

Sep 30, 2024	Blackrock Russell 2000® Growth	11,887	0.01%

Jun 30, 2024	Blackrock Russell 2000® Growth	11,688	0.01%

Mar 31, 2024	Blackrock Russell 2000® Growth	13,113	0.01%

Dec 31, 2023	Blackrock Russell 2000® Growth	12,517	0.01%

Sep 30, 2023	Blackrock Russell 2000® Growth	14,146	0.01%

Jun 30, 2023	Blackrock Russell 2000® Growth	13,033	0.01%