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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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3.3450-0.0550 (-1.62%)
As of 09:45AM EDT. Market open.
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
1.36%% of shares held by all insiders
94.84%% of shares held by institutions
96.14%% of float held by institutions
153Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC19,364,68830 Dec 202315.96%64,774,881
VR Adviser, LLC11,328,00030 Dec 20239.34%37,892,160
Balyasny Asset Management LLC9,698,14730 Dec 20237.99%32,440,301
Bain Capital Life Sciences Investors, LLC8,663,67330 Dec 20237.14%28,979,986
Blackrock Inc.7,844,28230 Dec 20236.47%26,239,123
SilverArc Capital Management, LLC6,420,13630 Dec 20235.29%21,475,355
Vanguard Group Inc6,237,58830 Dec 20235.14%20,864,732
Nextech Invest Ag5,978,32730 Dec 20234.93%19,997,503
Morgan Stanley4,134,54630 Dec 20233.41%13,830,056
Millennium Management Llc3,394,44030 Dec 20232.80%11,354,401

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund3,413,78230 Dec 20232.81%11,419,100
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF3,086,09930 Mar 20242.54%10,323,001
iShares Russell 2000 ETF2,730,64230 Mar 20242.25%9,133,997
Vanguard Extended Market Index Fund1,496,33730 Dec 20231.23%5,005,247
Fidelity Small Cap Index Fund1,136,25028 Feb 20240.94%3,800,756
iShares Russell 2000 Growth ETF590,22230 Mar 20240.49%1,974,292
Fidelity Extended Market Index Fund575,24430 Mar 20240.47%1,924,191
Vanguard Variable Insurance Fund-Small Company Growth544,45630 Dec 20230.45%1,821,205
iShares Russell 2000 Value ETF418,22430 Mar 20240.34%1,398,959
Vanguard Russell 2000 Index Fund403,47528 Feb 20240.33%1,349,623