MERSANA THERAPEUTICS INC

CUSIP: 59045L205 Class: COM

Holders for Q4 2025 Position Changes for Q4 2025

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

InstitutionSharesValue ($000)
Nextech Invest, Ltd.482,689$13,964
Bain Capital Life Sciences Investors, LLC346,545$10,026
VANGUARD GROUP INC210,301$6,084
Rock Springs Capital Management LP152,586$4,414
Knott David M Jr111,686$438
ACADIAN ASSET MANAGEMENT LLC110,882$3
Affinity Asset Advisors, LLC100,000$2,893
BlackRock, Inc.69,210$2,002
BANK OF AMERICA CORP /DE/65,749$1,902
MILLENNIUM MANAGEMENT LLC63,305$1,831
Groupe la Francaise61,488$1,779
Rangeley Capital, LLC57,098$1,652
GABELLI FUNDS LLC47,300$1,368
GEODE CAPITAL MANAGEMENT, LLC43,920$1,271
CREDIT INDUSTRIEL ET COMMERCIAL41,392$1,197
AQR CAPITAL MANAGEMENT LLC37,264$1,078
MACKENZIE FINANCIAL CORP33,834$967
Yakira Capital Management, Inc.32,663$945
Alamea Verwaltungs GmbH24,165$3,337
CITADEL ADVISORS LLC22,493$651
STATE STREET CORP19,543$565
MORGAN STANLEY18,496$535
DELTEC ASSET MANAGEMENT LLC18,000$521
IEQ CAPITAL, LLC12,955$375
XTX Topco Ltd11,948$346
Point72 Asset Management, L.P.10,364$300
GAMCO INVESTORS, INC. ET AL10,000$289
NORTHERN TRUST CORP8,586$248
OMERS ADMINISTRATION Corp7,900$229
EQUITEC PROPRIETARY MARKETS, LLC5,593$162
CWM, LLC2,286$0
BNP PARIBAS ARBITRAGE, SA1,090$32
GROUP ONE TRADING, L.P.1,073$31
Mint Tower Capital Management B.V.1,035$0
Tower Research Capital LLC (TRC)376$11
UBS Group AG221$6
ROYAL BANK OF CANADA168$5
JPMORGAN CHASE & CO112$3
OSAIC HOLDINGS, INC.103$3
Lion Point Capital, LP100$3
FLAGSHIP HARBOR ADVISORS, LLC76$2
SBI Securities Co., Ltd.53$2
WELLS FARGO & COMPANY/MN40$1
HUNTINGTON NATIONAL BANK32$1
SHP Wealth Management25$1
FMR LLC8$0
IFP Advisors, Inc3$0
DANSKE BANK A/S1$0
Total (48 institutions)2,244,757$61,474