A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Mersana Therapeutics, Inc. stock. As of the latest transaction made, Citadel Advisors LLC holds 27,200 shares of MRSN stock, worth $60,384. This represents 0.0% of its overall portfolio holdings.

Number of Shares
27,200
Previous 25,200 7.94%
Holding current value
$60,384
Previous $50,000 2.0%
% of portfolio
0.0%
Previous 0.0%

Shares

24 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 14, 2024

BUY
$1.23 - $2.25 $2.05 Million - $3.75 Million
1,667,956 Added 60.79%
4,411,555 $8.34 Million
Q2 2024

Aug 14, 2024

SELL
$2.0 - $4.45 $1.43 Million - $3.18 Million
-715,386 Reduced 20.68%
2,743,599 $5.51 Million
Q1 2024

May 15, 2024

BUY
$2.16 - $5.94 $3.31 Million - $9.1 Million
1,532,054 Added 79.51%
3,458,985 $15.5 Million
Q4 2023

Feb 14, 2024

BUY
$1.11 - $2.34 $346,550 - $730,566
312,208 Added 19.34%
1,926,931 $4.47 Million
Q3 2023

Nov 14, 2023

BUY
$1.06 - $3.91 $1.71 Million - $6.31 Million
1,614,647 Added 2124535.5%
1,614,723 $2.05 Million
Q2 2023

Aug 14, 2023

SELL
$3.08 - $9.55 $346,761 - $1.08 Million
-112,585 Reduced 99.93%
76 $0
Q1 2023

May 15, 2023

SELL
$4.0 - $7.02 $2.05 Million - $3.6 Million
-512,915 Reduced 81.99%
112,661 $463,000
Q4 2022

Feb 14, 2023

BUY
$5.65 - $7.86 $2.54 Million - $3.53 Million
448,673 Added 253.63%
625,576 $3.67 Million
Q3 2022

Nov 14, 2022

SELL
$4.63 - $8.0 $807,990 - $1.4 Million
-174,512 Reduced 49.66%
176,903 $1.2 Million
Q2 2022

Aug 15, 2022

SELL
$2.84 - $5.0 $952,178 - $1.68 Million
-335,274 Reduced 48.82%
351,415 $1.62 Million
Q1 2022

May 16, 2022

BUY
$3.74 - $6.63 $1.41 Million - $2.51 Million
378,182 Added 122.58%
686,689 $2.74 Million
Q4 2021

Feb 14, 2022

BUY
$5.48 - $9.86 $1.43 Million - $2.58 Million
261,664 Added 558.6%
308,507 $1.92 Million
Q3 2021

Nov 15, 2021

SELL
$8.56 - $14.47 $4.64 Million - $7.85 Million
-542,280 Reduced 92.05%
46,843 $442,000
Q2 2021

Aug 16, 2021

BUY
$13.28 - $18.07 $673,508 - $916,438
50,716 Added 9.42%
589,123 $8 Million
Q1 2021

May 17, 2021

SELL
$15.31 - $26.52 $21.7 Million - $37.6 Million
-1,416,610 Reduced 72.46%
538,407 $8.71 Million
Q4 2020

Feb 16, 2021

BUY
$16.84 - $27.59 $25.9 Million - $42.4 Million
1,536,822 Added 367.49%
1,955,017 $52 Million
Q3 2020

Nov 16, 2020

SELL
$16.2 - $25.7 $2.92 Million - $4.63 Million
-180,006 Reduced 30.09%
418,195 $7.79 Million
Q2 2020

Aug 14, 2020

BUY
$5.24 - $23.4 $717,958 - $3.21 Million
137,015 Added 29.71%
598,201 $14 Million
Q1 2020

May 15, 2020

BUY
$4.41 - $9.28 $1.06 Million - $2.24 Million
241,084 Added 109.53%
461,186 $2.69 Million
Q4 2019

Feb 14, 2020

BUY
$1.45 - $6.73 $184,045 - $854,225
126,928 Added 136.23%
220,102 $1.26 Million
Q3 2019

Nov 14, 2019

BUY
$1.54 - $4.2 $19,331 - $52,722
12,553 Added 15.57%
93,174 $147,000
Q2 2019

Aug 14, 2019

BUY
$3.84 - $6.4 $130,878 - $218,131
34,083 Added 73.24%
80,621 $326,000
Q1 2019

May 15, 2019

SELL
$3.51 - $7.3 $8,789 - $18,279
-2,504 Reduced 5.11%
46,538 $0
Q4 2018

Feb 14, 2019

BUY
$3.45 - $9.72 $169,194 - $476,688
49,042 New
49,042 $200,000

Others Institutions Holding MRSN

About Mersana Therapeutics, Inc.


  • Ticker MRSN
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 97,169,296
  • Market Cap $216M
  • 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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