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MRSN Mersana Therapeutics

Institutional ownership

Data for period
(Last complete reporting period)
Institutional shares
Float
Outstanding shares
Total positions
Opened positions
Closed positions
Increased positions
Decreased positions

Latest institutional filings

Type Filer #Shares Filed For date #Previous %Chg Prev. Date
13F-HR
First Mercantile Trust 5.54K 24 Nov 21 30 Sep 21 5.77K -4% 30 Jun 21
13F-HR/A
American International 39.17K 19 Nov 21 30 Sep 21 38.59K +2% 30 Jun 21
13F-HR/A
Truist Financial 11.7K 19 Nov 21 31 Dec 20 11.7K 0% 29 Sep 20
13F-HR/A
Bank Of New York Mellon 61.35K 18 Nov 21 30 Sep 21 44.03K +39% 30 Jun 21
13F-HR/A
BNP Paribas Arbitrage 71.78K 16 Nov 21 30 Sep 21 2.5K +3K% 30 Jun 21
13F-HR
QVT Financial 62.66K 16 Nov 21 30 Sep 21 62.66K 0% 30 Jun 21
13F-HR
Captrust Financial Advisors 428 15 Nov 21 30 Sep 21 428 0% 30 Jun 21
13F-HR
Charles Schwab Investment Management 482.31K 15 Nov 21 30 Sep 21 412.47K +17% 30 Jun 21
13F-HR
Jane Street 45.63K 15 Nov 21 30 Sep 21 33.55K +36% 30 Jun 21
13F-HR/A
Schonfeld Strategic Advisors 22.5K 15 Nov 21 30 Jun 21 45.9K -51% 31 Mar 21

About this data

This data is updated daily from 13F, 13D and 13G SEC filings.

Faded values represent incomplete data for the quarter, where values have been used from the previous quarter for institutions that haven't filed updated data yet.

MRSN 5-year stock price

Institutional ownership trends

Institutional shares (*long positions only)
Number of holders
Opened vs closed positions (#holders, opened on top)
Increased vs decreased positions (#holders, increased on top)
Puts vs calls (#shares, puts on top)

Institutional ownership history data

All data in millions (MM) except percentages. "0.0" is < 100,000 and "0.0%" is < 0.1%
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