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MRSN

Mersana Therapeutics, Inc.

Healthcare · USD

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Price alert · MRSN

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29.08 USD 0.00 0.00%
As of Jan 6, 2026 Extended hours 29.36 +0.96%
Bid
29.08 × 2
Ask
29.09 × 2
28.78 Day range 29.08

52-week range unavailable

YTD
+0.52%
1 year
-14.47%
Open
28.78
Prev close
29.08
Mkt cap
189.01M
Vol
624.02K
Avg vol
0
EPS
0.00
P/E
0.00
Div yield
0.00%
More statistics
Low
28.78
High
29.08
Forward P/E
-2.19
Beta
0.00
Short ratio
6.45
Inst. own
95.32%
Dividend
0.00
Ex-div date
50-d avg
2.16
200-d avg
2.47
1y target
6.50

5D chart

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Ownership

Held by insiders 1.26%
Held by institutions 95.32%
Float held by institutions 96.53%
Institutions 151

Top institutional holders

Top institutional holders
Holder% heldSharesValueReported
EcoR1 Capital, LLC15.68%19,364,68829.63MSep 29, 2024
Nextech Invest Ag9.77%12,067,24618.46MSep 29, 2024
VR Adviser, LLC9.17%11,328,00017.33MSep 29, 2024
Bain Capital Life Sciences Investors, LLC7.01%8,663,67313.26MSep 29, 2024
Blackrock Inc.6.98%8,621,86113.19MSep 29, 2024
Vanguard Group Inc5.81%7,177,45810.98MSep 29, 2024

Top mutual fund holders

Top mutual fund holders
Holder% heldSharesValueReported
Vanguard Total Stock Market Index Fund2.81%3,470,8925.31MSep 29, 2024
iShares Russell 2000 ETF2.40%2,966,7004.54MOct 30, 2024
Vanguard Extended Market Index Fund1.23%1,524,9732.33MSep 29, 2024
Fidelity Small Cap Index Fund0.96%1,179,8391.81MAug 30, 2024
Vanguard Explorer Fund, Inc.0.50%614,971940.90KJul 30, 2024
Fidelity Extended Market Index Fund0.44%538,996824.66KOct 30, 2024
MRSN insiders
InsiderRelationLatest transactionDateShares held
BALA MOHANOfficerSaleOct 27, 202454,731
CARVAJAL ALEJANDRA V.OfficerSaleOct 2, 202463,716
DERE WILLARD HDirectorStock Award(Grant)Jan 1, 202439,182
DESCHUYTNER BRIANChief Operating OfficerSaleOct 2, 202494,824
HUBER MARTIN H JRChief Executive OfficerSaleSep 11, 2024116,327
LOWINGER TIMOTHY BChief Technology OfficerSaleOct 2, 2024235,642
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