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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Delayed price. Currency in USD
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2.9400+0.0900 (+3.16%)
At close: 04:00PM EDT
2.9698 +0.03 (+1.01%)
After hours: 07:31PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
1.33%% of shares held by all insiders
95.29%% of shares held by institutions
96.57%% of float held by institutions
151Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC19,364,68830 Dec 202315.96%56,932,183
VR Adviser, LLC11,328,00030 Dec 20239.34%33,304,320
Balyasny Asset Management LLC9,698,14730 Dec 20237.99%28,512,552
Bain Capital Life Sciences Investors, LLC8,663,67330 Dec 20237.14%25,471,199
Blackrock Inc.7,844,28230 Dec 20236.47%23,062,189
SilverArc Capital Management, LLC6,420,13630 Dec 20235.29%18,875,200
Vanguard Group Inc6,237,58830 Dec 20235.14%18,338,509
Nextech Invest Ag5,978,32730 Dec 20234.93%17,576,281
Morgan Stanley4,134,54630 Dec 20233.41%12,155,565
Millennium Management Llc3,394,44030 Dec 20232.80%9,979,653

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund3,413,78230 Dec 20232.81%10,036,519
iShares Russell 2000 ETF2,720,76028 Feb 20242.24%7,999,034
Vanguard Extended Market Index Fund1,496,33730 Dec 20231.23%4,399,230
Fidelity Small Cap Index Fund1,121,19530 Jan 20240.92%3,296,313
iShares Russell 2000 Growth ETF611,97428 Feb 20240.50%1,799,203
Fidelity Extended Market Index Fund555,69230 Jan 20240.46%1,633,734
Vanguard Variable Insurance Fund-Small Company Growth544,45630 Dec 20230.45%1,600,700
iShares Russell 2000 Value ETF422,46428 Feb 20240.35%1,242,044
Direxion Shares ETF Tr-Direxion Daily S&P Biotech Bull 3x Sh368,43430 Mar 20240.30%1,083,195
Vanguard Russell 2000 Index Fund321,47029 Nov 20230.27%945,121