Latest Institutional Transactions on Mersana Therapeutics, Inc. (MRSN)
This table provides information on the latest institutional transactions involving Mersana Therapeutics, Inc. (MRSN) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 14, 2023
Q2 2023
|
Ghost Tree Capital, LLC
New York, NY |
BUY
|
- |
61.3KNew |
$189K - $585K
|
61.3K
$125K
|
|
|
Aug 14, 2023
Q2 2023
|
Avoro Capital Advisors LLC
New York, NY |
SELL
|
- |
-1.18M- 15.56% |
$3.62M - $11.2M
|
6.38M
$13M
|
|
|
Aug 14, 2023
Q2 2023
|
Rtw Investments, LP
New York, NY |
BUY
|
- |
615KNew |
$1.89M - $5.87M
|
615K
$1.25M
|
|
|
Aug 14, 2023
Q2 2023
|
Boothbay Fund Management, LLC
New York, NY |
BUY
|
CALL |
22.3KNew |
$68.7K - $213K
|
22.3K
$45.5K
|
|
|
Aug 14, 2023
Q2 2023
|
Jefferies Financial Group Inc.
New York, NY |
BUY
|
- |
40KNew |
$123K - $382K
|
40K
$81.5K
|
|
|
Aug 14, 2023
Q2 2023
|
Jefferies Financial Group Inc.
New York, NY |
BUY
|
PUT |
101KNew |
$310K - $961K
|
101K
$205K
|
|
|
Aug 14, 2023
Q2 2023
|
Kennedy Capital Management, Inc.
St Louis, MO |
BUY
|
- |
63.2K+ 12.85% |
$195K - $604K
|
555K
$1.13M
|
|
|
Aug 14, 2023
Q2 2023
|
Baker Bros. Advisors LP
New York, NY |
SELL
|
- |
-800K- 42.42% |
$2.46M - $7.64M
|
1.09M
$2.22M
|
|
|
Aug 14, 2023
Q2 2023
|
Redmile Group, LLC
San Francisco, CA |
BUY
|
- |
1.7MNew |
$5.23M - $16.2M
|
1.7M
$3.47M
|
|
|
Aug 14, 2023
Q2 2023
|
Orbimed Advisors LLC
San Diego, CA |
BUY
|
CALL |
39.3K+ 18.65% |
$121K - $375K
|
250K
$510K
|
|
|
Aug 14, 2023
Q2 2023
|
Orbimed Advisors LLC
San Diego, CA |
SELL
|
- |
-1.8M- 19.94% |
$5.53M - $17.2M
|
7.21M
$14.7M
|
|
|
Aug 14, 2023
Q2 2023
|
Tri Locum Partners LP
New York, NY |
BUY
|
- |
428KNew |
$1.32M - $4.09M
|
428K
$874K
|
|
|
Aug 14, 2023
Q2 2023
|
Moore Capital Management, LP
New York, NY |
BUY
|
CALL |
53KNew |
$163K - $506K
|
53K
$108K
|
|
|
Aug 14, 2023
Q2 2023
|
Caption Management, LLC
Oklahoma City, OK |
BUY
|
PUT |
35K+ 67.31% |
$108K - $334K
|
87K
$177K
|
|
|
Aug 14, 2023
Q2 2023
|
Ubs Oconnor LLC
Chicago, IL |
BUY
|
CALL |
415KNew |
$1.28M - $3.96M
|
415K
$847K
|
|
|
Aug 14, 2023
Q2 2023
|
Nomura Holdings Inc
Tokyo, M0 |
BUY
|
- |
149KNew |
$459K - $1.42M
|
149K
$304K
|
|
|
Aug 11, 2023
Q2 2023
|
Tocqueville Asset Management L.P.
New York, NY |
BUY
|
- |
13KNew |
$40K - $124K
|
13K
$26.5K
|
|
|
Aug 11, 2023
Q2 2023
|
Hap Trading, LLC
New York, NY |
BUY
|
CALL |
300+ 0.08% |
$924 - $2.87K
|
390K
$796K
|
|
|
Aug 11, 2023
Q2 2023
|
Artal Group S.A.
Luxembourg, N4 |
BUY
|
- |
814K+ 36.73% |
$2.51M - $7.77M
|
3.03M
$6.18M
|
|
|
Aug 11, 2023
Q2 2023
|
Martingale Asset Management L P
Boston, MA |
BUY
|
- |
4+ 0.03% |
$12.3 - $38.2
|
12.1K
$24.7K
|
|
|
Aug 11, 2023
Q2 2023
|
Peak6 Investments LLC
Chicago, IL |
BUY
|
- |
5KNew |
$15.4K - $47.8K
|
5K
$10.2K
|
|
|
Aug 11, 2023
Q2 2023
|
Peak6 Investments LLC
Chicago, IL |
BUY
|
PUT |
16.6KNew |
$51.1K - $159K
|
16.6K
$33.9K
|
|
|
Aug 11, 2023
Q2 2023
|
Pale Fire Capital Se
Prague, 2N |
BUY
|
- |
25.4KNew |
$78.2K - $243K
|
25.4K
$51.8K
|
|
|
Aug 09, 2023
Q2 2023
|
Swiss National Bank
Zurich, V8 |
BUY
|
- |
5.8K+ 3.37% |
$17.9K - $55.4K
|
178K
$363K
|
|
|
Aug 08, 2023
Q2 2023
|
Belvedere Trading LLC
|
BUY
|
- |
8.08KNew |
$24.9K - $77.2K
|
8.08K
$16.5K
|
|
|
Aug 08, 2023
Q2 2023
|
Belvedere Trading LLC
|
BUY
|
PUT |
3.1KNew |
$9.55K - $29.6K
|
3.1K
$6.32K
|
|
|
Aug 08, 2023
Q2 2023
|
Candriam S.C.A.
|
SELL
|
- |
-547K- 18.47% |
$1.69M - $5.23M
|
2.42M
$4.93M
|
|
|
Aug 07, 2023
Q2 2023
|
Mirabella Financial Services LLP
London, X0 |
BUY
|
- |
14.5KNew |
$44.6K - $138K
|
14.5K
$29.5K
|
|
|
Aug 07, 2023
Q2 2023
|
Zurcher Kantonalbank (Zurich Cantonalbank)
Zurich, V8 |
BUY
|
- |
5.21K+ 42.56% |
$16.1K - $49.8K
|
17.5K
$35.6K
|
|
|
Aug 07, 2023
Q2 2023
|
Skandinaviska Enskilda Banken Ab (Publ)
Stockholm, V7 |
BUY
|
- |
34.7K+ 59.28% |
$107K - $331K
|
93.1K
$190K
|
|
|
Aug 01, 2023
Q2 2023
|
Signaturefd, LLC
Atlanta, GA |
BUY
|
- |
369New |
$1.14K - $3.52K
|
369
$753
|
|
|
Jul 18, 2023
Q2 2023
|
Allworth Financial LP
|
BUY
|
- |
5.06KNew |
$15.6K - $48.3K
|
5.06K
$10.3K
|
|
|
Jul 18, 2023
Q2 2023
|
Allspring Global Investments Holdings, LLC
|
BUY
|
- |
2.85K+ 155.79% |
$8.78K - $27.2K
|
4.68K
$9.55K
|
|
|
Jul 18, 2023
Q2 2023
|
Cutler Group LP
|
BUY
|
CALL |
30KNew |
$92.4K - $287K
|
30K
$61.2K
|
|
| Q1 2023 | |||||||
|
Jun 13, 2024
Q1 2023
|
Bank Of Montreal
Toronto, A6 |
BUY
|
- |
20.5KNew |
$82K - $144K
|
20.5K
$41.8K
|
|
|
Jun 03, 2024
Q1 2023
|
Vontobel Holding Ltd.
|
BUY
|
- |
343KNew |
$1.37M - $2.41M
|
343K
$700K
|
|
|
May 20, 2024
Q1 2023
|
Parallel Advisors, LLC
|
BUY
|
- |
78New |
$312 - $548
|
78
$159
|
|
|
May 15, 2023
Q1 2023
|
Aquatic Capital Management LLC
Chicago, IL |
BUY
|
- |
21.5KNew |
$86K - $151K
|
21.5K
$43.9K
|
|
|
May 15, 2023
Q1 2023
|
Nebula Research & Development LLC
New York, NY |
BUY
|
- |
15.7KNew |
$62.8K - $110K
|
15.7K
$32K
|
|
|
May 15, 2023
Q1 2023
|
Lazard Asset Management LLC
New York, NY |
BUY
|
- |
10.8KNew |
$43.3K - $76K
|
10.8K
$22.1K
|
|
|
May 15, 2023
Q1 2023
|
Trexquant Investment LP
Stamford, CT |
SELL
|
- |
-77.3K- 49.0% |
$309K - $543K
|
80.4K
$164K
|
|
|
May 15, 2023
Q1 2023
|
Wolverine Trading, LLC
Chicago, IL |
BUY
|
- |
10.3KNew |
$41K - $72K
|
10.3K
$20.9K
|
|
|
May 15, 2023
Q1 2023
|
Occudo Quantitative Strategies LP
Fort Lauderdale, FL |
SELL
|
- |
-22.1K- 27.14% |
$88.5K - $155K
|
59.4K
$121K
|
|
|
May 15, 2023
Q1 2023
|
Lion Point Capital, LP
New York, NY |
BUY
|
- |
409KNew |
$1.64M - $2.87M
|
409K
$835K
|
|
|
May 15, 2023
Q1 2023
|
Braidwell LP
Stamford, CT |
BUY
|
- |
1.49M+ 80.16% |
$5.97M - $10.5M
|
3.36M
$6.85M
|
|
|
May 12, 2023
Q1 2023
|
Sei Investments CO
Oaks, PA |
BUY
|
- |
29KNew |
$116K - $203K
|
29K
$59.1K
|
|
|
May 12, 2023
Q1 2023
|
Cibc Asset Management Inc
Toronto, A6 |
SELL
|
- |
-90.1K- 15.9% |
$360K - $633K
|
477K
$972K
|
|
|
May 12, 2023
Q1 2023
|
Sectoral Asset Management Inc
Montreal, A8 |
BUY
|
- |
343KNew |
$1.37M - $2.41M
|
343K
$700K
|
|
|
May 12, 2023
Q1 2023
|
Hap Trading, LLC
New York, NY |
BUY
|
- |
89.6KNew |
$358K - $629K
|
89.6K
$183K
|
|
|
May 11, 2023
Q1 2023
|
Allianz Asset Management Gmb H
Munich, 2M |
BUY
|
- |
30.4K+ 50.58% |
$122K - $213K
|
90.5K
$185K
|
|