MRSN - Mersana Therapeutics, Inc.

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
N/A% of Shares Held by All Insider
N/A% of Shares Held by Institutions
N/A% of Float Held by Institutions
0Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
NEA Management Company, LLC11,894,267Jun 29, 201924.88%48,171,781
Sarissa Capital Management, LP3,750,000Jun 29, 20197.84%15,187,500
BVF Inc.2,497,900Jun 29, 20195.22%10,116,495
ArrowMark Colorado Holdings LLC2,464,415Jun 29, 20195.15%9,980,880
Blackrock Inc.2,390,463Jun 29, 20195.00%9,681,375
Boxer Capital, LLC2,084,000Jun 29, 20194.36%8,440,200
Vanguard Group, Inc. (The)1,903,502Jun 29, 20193.98%7,709,183
Orbimed Advisors LLC.1,891,119Jun 29, 20193.96%7,659,031
Rock Springs Capital Management, LP1,400,000Jun 29, 20192.93%5,670,000
EcoR1 Capital, LLC1,392,231Jun 29, 20192.91%5,638,535

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Meridian Small Cap Growth Fund871,145Dec 30, 20181.82%3,554,271
iShares Russell 2000 ETF748,968Jun 29, 20191.57%3,033,320
JP Morgan U.S. Small Company Fund617,236Jun 29, 20191.29%2,499,805
iShares Russell 2000 Value ETF324,816Jun 29, 20190.68%1,315,504
Fidelity Extended Market Index Fund202,090Jun 29, 20190.42%818,464
Vanguard Extended Market Index Fund196,096Dec 30, 20180.41%800,071
SEI Institutional Managed Tr-Small Cap Growth Fund115,185Jun 29, 20190.24%466,499
iShares Micro Cap ETF92,342Jun 29, 20190.19%373,985
iShares Core S&P Total U.S. Stock Market ETF76,633Jun 29, 20190.16%310,363
Fidelity Total Market Index Fund57,405Jun 29, 20190.12%232,490