Avidity Partners Management LP

Holdings History for Mersana Therapeutics, Inc. - Common Stock, par value $0.0001 per share (MRSN)

Symbol: MRSN on Nasdaq
Investment type: Equity / Common Stock, par value $0.0001 per share

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2023		-0.44%	$0	0	-3,790,000	-100%	$28.95	Q3 2023
30 Jun 2023	0.44%	+0.04%	$12,469,100	3,790,000	+356,767	+10%	$3.29	Q2 2023
31 Mar 2023	0.47%	+0.47%	$14,110,588	3,433,233	+3,433,233	NEW	$4.11	Q1 2023
31 Dec 2020		-0.76%	$0	0	-757,400	-100%	$28.95	Q4 2020
30 Sep 2020	0.76%	-0.31%	$14,103,000	757,400	-312,200	-29%	$18.62	Q3 2020
30 Jun 2020	1.6%	+1.6%	$25,029,000	1,069,600	+1,069,600	NEW	$23.40	Q2 2020

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.