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 25,200 shares of MRSN stock, worth $54,432. This represents 0.0% of its overall portfolio holdings.

Number of Shares
25,200
Previous 20,700 21.74%
Holding current value
$54,432
Previous $92,000 45.65%
% of portfolio
0.0%
Previous 0.0%

Shares

23 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
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 $210M
  • 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
Track Ken Griffin's Portfolio

Track Ken Griffin Portfolio

Follow Ken Griffin (Citadel Advisors LLC) and customize your updates to receive the information that matters most to you.

Portfolio Update

Get notified when there are updates to the investment portfolio of Citadel Advisors LLC, based on Form 13F filings with the SEC.

News

Stay updated on Citadel Advisors LLC and Ken Griffin with notifications on news.