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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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2.1000-0.1100 (-4.98%)
At close: 04:00PM EDT
2.1000 0.00 (0.00%)
After hours: 07:23PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
1.36%% of shares held by all insiders
99.48%% of shares held by institutions
100.85%% of float held by institutions
164Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC19,364,68830 Mar 202415.83%40,665,842
VR Adviser, LLC11,328,00030 Mar 20249.26%23,788,798
Bain Capital Life Sciences Investors, LLC8,663,67330 Mar 20247.08%18,193,712
Blackrock Inc.8,095,72930 Mar 20246.62%17,001,030
Vanguard Group Inc6,274,37030 Mar 20245.13%13,176,176
State Street Corporation5,497,44330 Mar 20244.49%11,544,629
Nextech Invest Ag3,856,32130 Mar 20243.15%8,098,273
Balyasny Asset Management LLC3,655,99830 Mar 20242.99%7,677,595
Citadel Advisors Llc3,458,98530 Mar 20242.83%7,263,868
Rock Springs Capital Management, LP3,046,78230 Mar 20242.49%6,398,241

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund3,223,04330 Mar 20242.63%6,768,389
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF2,860,55529 Apr 20242.34%6,007,165
iShares Russell 2000 ETF2,588,84529 Apr 20242.12%5,436,574
Vanguard Extended Market Index Fund1,516,49130 Mar 20241.24%3,184,630
Fidelity Small Cap Index Fund1,098,82630 Mar 20240.90%2,307,534
iShares Russell 2000 Growth ETF573,75829 Apr 20240.47%1,204,891
Fidelity Extended Market Index Fund570,07829 Apr 20240.47%1,197,163
JP Morgan U.S. Small Company Fund474,66530 Mar 20240.39%996,796
iShares Russell 2000 Value ETF410,53929 Apr 20240.34%862,131
Vanguard Russell 2000 Index Fund403,47528 Feb 20240.33%847,297