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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Real Time Price. Currency in USD
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15.00+0.10 (+0.67%)
At close: 4:00PM EDT
15.00 0.00 (0.00%)
After hours: 04:11PM EDT

Major Holders

Currency in USD
Breakdown
1.18%% of Shares Held by All Insider
102.37%% of Shares Held by Institutions
103.59%% of Float Held by Institutions
201Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
Blackrock Inc.8,002,086Mar 30, 202111.50%129,473,751
Avoro Capital Advisors LLC6,800,000Mar 30, 20219.78%110,024,000
Wellington Management Group, LLP6,177,793Mar 30, 20218.88%99,956,690
Sarissa Capital Management, LP4,005,600Mar 30, 20215.76%64,810,608
State Street Corporation3,746,000Mar 30, 20215.39%60,610,280
Bain Capital Life Sciences Investors, LLC3,695,667Mar 30, 20215.31%59,795,892
Vanguard Group, Inc. (The)3,117,369Mar 30, 20214.48%50,439,030
Price (T.Rowe) Associates Inc2,974,087Mar 30, 20214.28%48,120,727
Bellevue Group AG2,850,010Mar 30, 20214.10%46,113,161
Rock Springs Capital Management, LP2,775,127Mar 30, 20213.99%44,901,554

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF2,857,577Apr 29, 20214.11%45,521,201
Vanguard Total Stock Market Index Fund1,720,683Mar 30, 20212.47%27,840,650
BlackRock Health Sciences Trust II1,518,223Mar 30, 20212.18%24,564,848
iShares Russell 2000 ETF1,316,940Mar 30, 20211.89%21,308,089
Blackrock Funds-Health Sciences Opportunity Portfolio1,093,068Mar 30, 20211.57%17,685,840
Price (T.Rowe) New Horizons Fund1,027,930Mar 30, 20211.48%16,631,907
Vanguard Extended Market Index Fund786,698Mar 30, 20211.13%12,728,773
ACAP Strategic Fund765,871Mar 30, 20211.10%12,391,792
Putnam Global Health Care Fd654,000Feb 27, 20210.94%11,889,720
Harbor Small Cap Growth Fund616,906Jan 30, 20210.89%11,758,228