Purchases and Sales Made in Q2 2025 in Mersana Therapeutics, Inc. (MRSN)
This table provides information about the institutional ownership of Mersana Therapeutics, Inc. (MRSN) during Q2 2025. The information is specifically focused on institutions that hold shares of Mersana Therapeutics, Inc..
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 14, 2025
Q2 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
2.09MNew |
$543K - $857K
|
2.09M
$57.3M
|
|
|
Aug 13, 2025
Q2 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
2.01M+ 239.34% |
$523K - $824K
|
2.85M
$78.2M
|
|
|
Aug 14, 2025
Q2 2025
|
Luminus Management LLC
Houston, TX |
BUY
|
- |
1.04MNew |
$270K - $426K
|
1.04M
$28.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
847K+ 144.39% |
$220K - $347K
|
1.43M
$39.3M
|
|
|
Aug 14, 2025
Q2 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
770K+ 1434.46% |
$200K - $316K
|
823K
$22.6M
|
|
|
Aug 14, 2025
Q2 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
679K+ 262.9% |
$176K - $278K
|
937K
$25.7M
|
|
|
Aug 14, 2025
Q2 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
511KNew |
$133K - $210K
|
511K
$14M
|
|
|
Jul 22, 2025
Q2 2025
|
Gsa Capital Partners LLP
London, X0 |
BUY
|
- |
472KNew |
$123K - $193K
|
472K
$12.9M
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Group Ag
|
BUY
|
- |
456K+ 142.49% |
$118K - $187K
|
776K
$21.3M
|
|
|
Aug 14, 2025
Q2 2025
|
683 Capital Management, LLC
New York, NY |
BUY
|
- |
340K+ 20.61% |
$88.4K - $139K
|
1.99M
$54.6M
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
208K+ 86.4% |
$54.2K - $85.4K
|
449K
$12.3M
|
|
|
Aug 14, 2025
Q2 2025
|
Jain Global LLC
New York, NY |
BUY
|
- |
96.2KNew |
$25K - $39.4K
|
96.2K
$2.64M
|
|
|
Aug 13, 2025
Q2 2025
|
Cerity Partners LLC
New York, NY |
BUY
|
- |
76.6K+ 31.35% |
$19.9K - $31.4K
|
321K
$8.8M
|
|
|
Aug 14, 2025
Q2 2025
|
Point72 Asia (Singapore) Pte. Ltd.
Singapore, U0 |
BUY
|
- |
75.2KNew |
$19.5K - $30.8K
|
75.2K
$2.06M
|
|
|
Jul 24, 2025
Q2 2025
|
Callan Family Office, LLC
Radnor, PA |
BUY
|
- |
56.6KNew |
$14.7K - $23.2K
|
56.6K
$1.55M
|
|
|
Aug 15, 2025
Q2 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
50.5K+ 16.43% |
$13.1K - $20.7K
|
358K
$9.81M
|
|
|
Jul 31, 2025
Q2 2025
|
R Squared LTD
Central, K3 |
BUY
|
- |
47.2KNew |
$12.3K - $19.4K
|
47.2K
$1.3M
|
|
|
Aug 14, 2025
Q2 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
46.9K+ 100.82% |
$12.2K - $19.2K
|
93.4K
$2.56M
|
|
|
Aug 14, 2025
Q2 2025
|
Silverarc Capital Management, LLC
|
BUY
|
- |
39.9K+ 1.29% |
$10.4K - $16.4K
|
3.13M
$85.8M
|
|
|
Aug 13, 2025
Q2 2025
|
Hsbc Holdings PLC
London, X0 |
BUY
|
- |
18K+ 144.12% |
$4.68K - $7.38K
|
30.5K
$837K
|
|
|
Aug 14, 2025
Q2 2025
|
Two Sigma Securities, LLC
New York, NY |
BUY
|
- |
17.6KNew |
$4.57K - $7.2K
|
17.6K
$482K
|
|
|
Aug 13, 2025
Q2 2025
|
Group One Trading, L.P.
Chicago, IL |
BUY
|
- |
14.8K+ 73.41% |
$3.84K - $6.05K
|
34.9K
$956K
|
|
|
Aug 13, 2025
Q2 2025
|
Exodus Point Capital Management, LP
New York, NY |
BUY
|
- |
11.4KNew |
$2.97K - $4.69K
|
11.4K
$314K
|
|
|
Aug 13, 2025
Q2 2025
|
Jump Financial, LLC
Chicago, IL |
BUY
|
- |
11.3KNew |
$2.94K - $4.64K
|
11.3K
$311K
|
|
|
Aug 14, 2025
Q2 2025
|
Captrust Financial Advisors
Raleigh, NC |
BUY
|
- |
10.6K+ 34.08% |
$2.76K - $4.35K
|
41.7K
$1.15M
|
|
|
Aug 14, 2025
Q2 2025
|
Mariner, LLC
Overland Park, KS |
BUY
|
- |
10.5K+ 50.42% |
$2.72K - $4.29K
|
31.2K
$856K
|
|
|
Aug 14, 2025
Q2 2025
|
Tower Research Capital LLC (Trc)
New York, NY |
BUY
|
- |
5.52K+ 21.09% |
$1.43K - $2.26K
|
31.7K
$869K
|
|
|
Aug 13, 2025
Q2 2025
|
Ever Source Wealth Advisors, LLC
|
BUY
|
- |
2.8K+ 103.63% |
$727 - $1.15K
|
5.49K
$151K
|
|
|
Jul 09, 2025
Q2 2025
|
Pallas Capital Advisors LLC
Braintree, MA |
BUY
|
- |
2.18K+ 2.3% |
$566 - $893
|
96.7K
$2.65M
|
|
|
Jul 30, 2025
Q2 2025
|
Parcion Private Wealth LLC
Bellevue, WA |
BUY
|
- |
941+ 6.15% |
$245 - $386
|
16.2K
$445K
|
|
|
Jul 21, 2025
Q2 2025
|
Mirae Asset Global Investments Co., Ltd.
|
BUY
|
- |
680+ 16.45% |
$177 - $279
|
4.81K
$132K
|
|
|
Jul 24, 2025
Q2 2025
|
Ifp Advisors, Inc
|
BUY
|
- |
677New |
$176 - $278
|
677
$18.6K
|
|
|
Aug 28, 2025
Q2 2025
|
China Universal Asset Management Co., Ltd.
Shanghai, F4 |
BUY
|
- |
253+ 1.02% |
$65.8 - $104
|
25K
$687K
|
|
|
Aug 13, 2025
Q2 2025
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
BUY
|
- |
98+ 2.94% |
$25.5 - $40.2
|
3.43K
$94.1K
|
|
|
Aug 12, 2025
Q2 2025
|
Concourse Financial Group Securities, Inc.
Birmingham, AL |
BUY
|
- |
0New |
$0 - $0
|
0
$0
|
|
|
Aug 14, 2025
Q2 2025
|
Jacobs Levy Equity Management, Inc
Florham Park, NJ |
SELL
|
- |
-179- 0.01% |
$46.5 - $73.4
|
1.33M
$36.6M
|
|
|
Jul 31, 2025
Q2 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-250- 19.23% |
$65 - $103
|
1.05K
$28.8K
|
|
|
Sep 04, 2025
Q2 2025
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
SELL
|
- |
-834- 24.3% |
$217 - $342
|
2.6K
$71.3K
|
|
|
Aug 14, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
SELL
|
- |
-1.47K- 90.73% |
$382 - $602
|
150
$4.11K
|
|
|
Nov 21, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
SELL
|
- |
-1.47K- 90.73% |
$382 - $602
|
150
$4.11K
|
|
|
Aug 08, 2025
Q2 2025
|
Pnc Financial Services Group, Inc.
Pittsburgh, PA |
SELL
|
- |
-2.64K- 74.75% |
$687 - $1.08K
|
893
$24.5K
|
|
|
Jul 10, 2025
Q2 2025
|
Wealth Enhancement Advisory Services, LLC
|
SELL
|
- |
-3.97K- 3.04% |
$1.03K - $1.63K
|
127K
$3.48M
|
|
|
Jul 25, 2025
Q2 2025
|
Vanguard Personalized Indexing Management, LLC
Oakland, CA |
SELL
|
- |
-5.95K- 13.95% |
$1.55K - $2.44K
|
36.7K
$1.01M
|
|
|
Aug 11, 2025
Q2 2025
|
Citigroup Inc
|
SELL
|
- |
-8.63K- 10.57% |
$2.24K - $3.54K
|
73K
$2M
|
|
|
Jul 22, 2025
Q2 2025
|
Merit Financial Group, LLC
|
SELL
|
- |
-10.3K- 24.62% |
$2.68K - $4.23K
|
31.6K
$866K
|
|
|
Aug 14, 2025
Q2 2025
|
Aqr Capital Management LLC
Greenwich, CT |
SELL
|
- |
-14.1K- 0.27% |
$3.66K - $5.77K
|
5.13M
$141M
|
|
|
Jul 25, 2025
Q2 2025
|
Cwm, LLC
|
SELL
|
- |
-19.4K- 10.51% |
$5.05K - $7.96K
|
165K
$4.54M
|
|
|
Aug 13, 2025
Q2 2025
|
Algert Global LLC
San Francisco, CA |
SELL
|
- |
-33.7K- 24.96% |
$8.76K - $13.8K
|
101K
$2.78M
|
|
|
Aug 07, 2025
Q2 2025
|
Acadian Asset Management LLC
Boston, MA |
SELL
|
- |
-34.4K- 1.15% |
$8.94K - $14.1K
|
2.96M
$81.1M
|
|
|
Aug 12, 2025
Q2 2025
|
Prudential Financial Inc
Newark, NJ |
SELL
|
- |
-46.6K- 75.79% |
$12.1K - $19.1K
|
14.9K
$409K
|
|