MERSANA THERAPEUTICS INC

CUSIP: 59045L106 Class: COM

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

Decreased Positions (1)

EverSource Wealth Advisors, LLC

Value ($000) $0 (+191.7%) Shares 11 (-21.4%)

Institution	Prev Shares	Curr Shares	Change
EverSource Wealth Advisors, LLC	14	11	-3 (-21.4%)

Exited Positions (5)

LUMINUS MANAGEMENT LLC

Value ($000) $388 Shares 50,000

Value ($000) $935 Shares 494,516

OSAIC HOLDINGS, INC.

Value ($000) $1 Shares 2,500

IFP Advisors, Inc

Value ($000) $0 Shares 610

Value ($000) $0 Shares 2,878

Institution	Prev Shares	Prev Value ($000)
LUMINUS MANAGEMENT LLC	50,000	$388
BARCLAYS PLC	494,516	$935
OSAIC HOLDINGS, INC.	2,500	$1
IFP Advisors, Inc	610	$0
CWM, LLC	2,878	$0