A detailed history of Eco R1 Capital, LLC transactions in Mersana Therapeutics, Inc. stock. As of the latest transaction made, Eco R1 Capital, LLC holds 19,364,688 shares of MRSN stock, worth $31.4 Million. This represents 1.59% of its overall portfolio holdings.

Number of Shares
19,364,688
Previous 19,364,688 -0.0%
Holding current value
$31.4 Million
Previous $38.9 Million 5.97%
% of portfolio
1.59%
Previous 1.38%

Shares

8 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2023

Nov 14, 2023

BUY
$1.06 - $3.91 $20.5 Million - $75.7 Million
19,364,688 New
19,364,688 $24.6 Million
Q2 2022

Aug 15, 2022

SELL
$2.84 - $5.0 $44,355 - $78,090
-15,618 Reduced 4.78%
310,960 $1.44 Million
Q1 2022

May 16, 2022

BUY
$3.74 - $6.63 $1.22 Million - $2.17 Million
326,578 New
326,578 $1.3 Million
Q3 2019

Nov 14, 2019

SELL
$1.54 - $4.2 $2.14 Million - $5.85 Million
-1,392,231 Closed
0 $0
Q2 2019

Aug 14, 2019

SELL
$3.84 - $6.4 $3.49 Million - $5.81 Million
-907,769 Reduced 39.47%
1,392,231 $5.64 Million
Q1 2019

May 15, 2019

BUY
$3.51 - $7.3 $8.07 Million - $16.8 Million
2,300,000 New
2,300,000 $12.1 Million
Q4 2018

Feb 14, 2019

SELL
$3.45 - $9.72 $1.71 Million - $4.82 Million
-495,618 Closed
0 $0
Q3 2018

Nov 14, 2018

BUY
$10.0 - $19.02 $4.96 Million - $9.43 Million
495,618 New
495,618 $4.96 Million

Others Institutions Holding MRSN

About Mersana Therapeutics, Inc.


  • Ticker MRSN
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 97,169,296
  • Market Cap $157M
  • Description
  • Mersana Therapeutics, Inc., a clinical stage biopharmaceutical company, develops antibody drug conjugates (ADC) for cancer patients with unmet need. It develops XMT-1592, a Dolasynthen ADC targeting NaPi2b-expressing tumor cells, which is in phase I clinical trial for the treatment of ovarian cancer and NSCLC adenocarcinoma. The company also dev...
More about MRSN
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