Ownership

Brian DeSchuytner - SVP, COO & CFO at Mersana Therapeutics, Inc.

Insider Transactions and Holdings

Entity Type: Individual
Role: Svp, Coo & Cfo
Stock Symbol: MRSN on Nasdaq
Industry: Pharmaceutical Preparations
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Brian DeSchuytner - trading volume in the past year for Mersana Therapeutics, Inc.

	Shares	%	Avg Price	Total $
Buys
Sells	-23K	100%	$2.28	-$52.4K
Net	-23K	-100%		-$52.4K

Holdings reported by Brian DeSchuytner for Mersana Therapeutics, Inc.

Class	Num Shares	Value	Price $	Transaction Date	Ownership	Underlying Class	Underlying Amount
Common Stock	94.8K	$186K	$1.96	Oct 3, 2024	Direct
Restricted Stock Unit	58.3K	$158K	$2.71	Jan 15, 2024	Direct	Common Stock
Restricted Stock Unit	0	$0	$1.96	Oct 1, 2024	Direct	Common Stock
Stock Option (Right to Buy)	263K			Jan 15, 2024	Direct	Common Stock

Transactions reported by Brian DeSchuytner for Mersana Therapeutics, Inc.

Sym	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.