Mersana Therapeutics Inc (MRSN) Ownership

6.67 ↑0.20 (3.01%)
As of January 27, 2023, 3:58pm EST.

Institutional Ownership

Orbimed Advisors, LLC is the biggest individual institutional holder of Mersana Therapeutics Inc (MRSN), owning a total of 9 million shares. Combined, the top 23 institutional holders of MRSN own 77.19% of the company with a total of 77 million shares.

In the latest ownership report on September 30th 2022, the top 23 institutional holders increased their combined ownership of MRSN by 3.3 million shares. 11 institutions bought 6,356,142 total additional shares and increased their ownership by an average of 41.46%. However 5 institutions sold 3,055,330 total shares and decreased their ownership by an average of 9.78%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Mersana Therapeutics increased by a net total of 3,300,812 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Orbimed Advisors, LLC9.032%0.000%9,011,43702022-09-30
Bain Capital Life Sciences Investors, LLC8.683%0.000%8,663,67302022-09-30
venBio Select Advisor LLC7.567%0.000%7,550,00002022-09-30
BlackRock Inc7.104%-20.188%7,088,087-1,792,9322022-09-30
Vanguard Group Inc4.388%-7.515%4,377,999-355,7322022-09-30
Bellevue Group AG4.092%4.811%4,082,600187,4002022-09-30
Rock Springs Capital Management LP4.085%0.000%4,075,95802022-09-30
State Street Corporation4.068%150.506%4,059,0202,438,6902022-09-30
Sarissa Capital Management LP4.006%-7.031%3,997,010-302,2872022-09-30
Millennium Management LLC3.793%-13.657%3,784,175-598,5262022-09-30
D. E. Shaw & Co LP2.630%32.675%2,624,223646,2932022-09-30
Candriam Luxembourg S.C.A.2.504%25.485%2,497,848507,2892022-09-30
Goldman Sachs Group Inc2.409%29.222%2,403,969543,6222022-09-30
Artal Group S A2.205%0.000%2,200,00002022-09-30
Geode Capital Management, LLC1.654%4.967%1,650,01978,0792022-09-30
Morgan Stanley - Brokerage Accounts1.598%1.326%1,594,57420,8702022-09-30
Nuveen Asset Management, LLC1.272%187.239%1,269,121827,2872022-09-30
Deutsche Bank AG1.121%-0.520%1,118,862-5,8532022-09-30
Two Sigma Advisers, LLC1.120%2.853%1,117,70031,0002022-09-30
SILVERARC CAPITAL MANAGEMENT, LLC0.996%16.950%994,073144,0732022-09-30
Ally Bridge Group (NY) LLC0.934%0.000%931,539931,5392022-09-30

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Orbimed Advisors, LLC9.032%0.000%9,011,43702022-09-30
Bain Capital Life Sciences Investors, LLC8.683%0.000%8,663,67302022-09-30
venBio Select Advisor LLC7.567%0.000%7,550,00002022-09-30
BlackRock Inc7.104%-20.188%7,088,087-1,792,9322022-09-30
Vanguard Group Inc4.388%-7.515%4,377,999-355,7322022-09-30
Bellevue Group AG4.092%4.811%4,082,600187,4002022-09-30
Rock Springs Capital Management LP4.085%0.000%4,075,95802022-09-30
State Street Corporation4.068%150.506%4,059,0202,438,6902022-09-30
Sarissa Capital Management LP4.006%-7.031%3,997,010-302,2872022-09-30
Millennium Management LLC3.793%-13.657%3,784,175-598,5262022-09-30
D. E. Shaw & Co LP2.630%32.675%2,624,223646,2932022-09-30
Candriam Luxembourg S.C.A.2.504%25.485%2,497,848507,2892022-09-30
Goldman Sachs Group Inc2.409%29.222%2,403,969543,6222022-09-30
Artal Group S A2.205%0.000%2,200,00002022-09-30
Geode Capital Management, LLC1.654%4.967%1,650,01978,0792022-09-30
Morgan Stanley - Brokerage Accounts1.598%1.326%1,594,57420,8702022-09-30
Nuveen Asset Management, LLC1.272%187.239%1,269,121827,2872022-09-30
Deutsche Bank AG1.121%-0.520%1,118,862-5,8532022-09-30
Two Sigma Advisers, LLC1.120%2.853%1,117,70031,0002022-09-30
Opaleye Management Inc1.062%47.465%1,047,000337,0002022-06-30
SILVERARC CAPITAL MANAGEMENT, LLC0.996%16.950%994,073144,0732022-09-30
Ally Bridge Group (NY) LLC0.934%0.000%931,539931,5392022-09-30
Northern Trust Corp0.869%18.258%856,486132,2312022-06-30

Mutual Fund Ownership

SPDR® S&P Biotech ETF is the biggest individual fund holder of Mersana Therapeutics Inc (MRSN), owning a total of 4 million shares. Combined, the top 23 mutual fund holders of MRSN own 31.01% of the company with a total of 30.9 million shares.

In the latest ownership report on December 31st 2022, the top 23 fund holders increased their combined ownership of MRSN by 2 thousand shares. 1 funds bought 46,147 total additional shares and increased their ownership by an average of 9.38%. However 2 funds sold 48,166 total shares and decreased their ownership by an average of 1.22%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding Mersana Therapeutics decreased by a net total of -2,019 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
SPDR® S&P Biotech ETF3.999%-0.873%3,990,365-35,1562022-12-31
Belfius Equities Cure C Cap1.597%0.000%1,592,91502022-12-31
Goldman Sachs Small Cap Value A0.817%-1.572%814,633-13,0102022-12-31
State St Russell Sm/Mid Cp® Indx NL Cl C0.539%9.383%537,97546,1472022-12-31

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
SPDR® S&P Biotech ETF3.999%-0.873%3,990,365-35,1562022-12-31
BB Biotech AG Ord3.875%-1.498%3,866,200-58,8002022-09-30
Biotech Growth Ord2.879%0.000%2,872,70002022-09-30
Vanguard Instl Ttl Stck Mkt Idx Tr2.643%2.468%2,637,45163,5282022-09-30
Vanguard Total Stock Mkt Idx Inv2.643%0.000%2,637,45102022-11-30
iShares Russell 2000 ETF2.093%-0.831%2,088,490-17,5002022-12-30
Belfius Equities Cure C Cap1.597%0.000%1,592,91502022-12-31
Candriam Global Equities Oncology1.546%42.750%1,542,915462,0662022-09-30
Vanguard Extended Market Index Investor1.180%0.427%1,177,6045,0012022-11-30
iShares Russell 2000 Value ETF0.971%0.000%968,48502022-12-30
Candriam Eqs L Biotech C USD Cap0.905%2.849%902,49425,0002022-11-30
TIAA-CREF Quant Small-Cap Equity Instl0.821%-1.491%818,780-12,3902022-11-30
Goldman Sachs Small Cap Value A0.817%-1.572%814,633-13,0102022-12-31
Fidelity® Small Cap Index0.711%2.216%709,42615,3832022-10-31
iShares Biotechnology ETF0.658%-0.301%656,333-1,9802022-12-30
BGF World Healthscience A20.653%0.000%643,57602022-07-31
MEDICAL BioHealth EUR Acc0.553%0.000%551,51002022-09-30
State St Russell Sm/Mid Cp® Indx NL Cl C0.539%9.383%537,97546,1472022-12-31
Fidelity® Extended Market Index0.431%0.000%430,22802022-11-30
Alger Health Sciences A0.389%0.000%383,21702022-08-31
Schwab US Small-Cap ETF™0.379%0.000%377,86302022-12-30
Direxion Daily S&P Biotech Bull 3X ETF0.372%7.209%371,26424,9642022-12-29
State St Russell Sm Cap® Indx NL Cl C0.355%0.000%354,36702022-11-30

Discussions

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HousewifeTrader

$MRSN damn lots of volume came after hours just now
what the?

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