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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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3.4600+0.1000 (+2.98%)
At close: 04:00PM EDT
3.5800 +0.12 (+3.47%)
After hours: 05:36PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
1.32%% of shares held by all insiders
94.28%% of shares held by institutions
95.54%% of float held by institutions
152Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC19,364,68830 Dec 202315.96%67,001,821
VR Adviser, LLC11,328,00030 Dec 20239.34%39,194,880
Balyasny Asset Management LLC9,698,14730 Dec 20237.99%33,555,588
Bain Capital Life Sciences Investors, LLC8,663,67330 Dec 20237.14%29,976,308
Blackrock Inc.7,844,28230 Dec 20236.47%27,141,216
SilverArc Capital Management, LLC6,420,13630 Dec 20235.29%22,213,670
Vanguard Group Inc6,237,58830 Dec 20235.14%21,582,054
Nextech Invest Ag5,978,32730 Dec 20234.93%20,685,011
Morgan Stanley4,134,54630 Dec 20233.41%14,305,529
Millennium Management Llc3,394,44030 Dec 20232.80%11,744,762

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund3,413,78230 Dec 20232.81%11,811,685
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF3,086,09930 Mar 20242.54%10,677,902
iShares Russell 2000 ETF2,730,64230 Mar 20242.25%9,448,021
Vanguard Extended Market Index Fund1,496,33730 Dec 20231.23%5,177,326
Fidelity Small Cap Index Fund1,136,25028 Feb 20240.94%3,931,425
iShares Russell 2000 Growth ETF590,22230 Mar 20240.49%2,042,168
Fidelity Extended Market Index Fund579,72728 Feb 20240.48%2,005,855
Vanguard Variable Insurance Fund-Small Company Growth544,45630 Dec 20230.45%1,883,817
iShares Russell 2000 Value ETF418,22430 Mar 20240.34%1,447,055
Vanguard Russell 2000 Index Fund403,47528 Feb 20240.33%1,396,023