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 08, 2025
Q2 2025
|
Pnc Financial Services Group, Inc.
Pittsburgh, PA |
SELL
|
- |
-2.64K- 74.75% |
$687 - $1.08K
|
893
$24.5K
|
|
|
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 06, 2025
Q2 2025
|
Savant Capital, LLC
|
SELL
|
- |
-95.8K- 86.22% |
$24.9K - $39.3K
|
15.3K
$420K
|
|
|
Jul 31, 2025
Q2 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-250- 19.23% |
$65 - $103
|
1.05K
$28.8K
|
|
|
Jul 31, 2025
Q2 2025
|
R Squared LTD
Central, K3 |
BUY
|
- |
47.2KNew |
$12.3K - $19.4K
|
47.2K
$1.3M
|
|
|
Jul 30, 2025
Q2 2025
|
Parcion Private Wealth LLC
Bellevue, WA |
BUY
|
- |
941+ 6.15% |
$245 - $386
|
16.2K
$445K
|
|
|
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
|
|
|
Jul 24, 2025
Q2 2025
|
Callan Family Office, LLC
Radnor, PA |
BUY
|
- |
56.6KNew |
$14.7K - $23.2K
|
56.6K
$1.55M
|
|
|
Jul 22, 2025
Q2 2025
|
Merit Financial Group, LLC
|
SELL
|
- |
-10.3K- 24.62% |
$2.68K - $4.23K
|
31.6K
$866K
|
|
|
Jul 22, 2025
Q2 2025
|
Gsa Capital Partners LLP
London, X0 |
BUY
|
- |
472KNew |
$123K - $193K
|
472K
$12.9M
|
|
|
Jul 21, 2025
Q2 2025
|
Mirae Asset Global Investments Co., Ltd.
|
BUY
|
- |
680+ 16.45% |
$177 - $279
|
4.81K
$132K
|
|
|
Jul 10, 2025
Q2 2025
|
Wealth Enhancement Advisory Services, LLC
|
SELL
|
- |
-3.97K- 3.04% |
$1.03K - $1.63K
|
127K
$3.48M
|
|
|
Jul 09, 2025
Q2 2025
|
Pallas Capital Advisors LLC
Braintree, MA |
BUY
|
- |
2.18K+ 2.3% |
$566 - $893
|
96.7K
$2.65M
|
|
| Q1 2025 | |||||||
|
Sep 15, 2025
Q1 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
281KNew |
$95.4K - $393K
|
281K
$7.7M
|
|
|
May 20, 2025
Q1 2025
|
Intech Investment Management LLC
West Palm Beach, FL |
BUY
|
- |
39.3K+ 77.08% |
$13.4K - $55.1K
|
90.4K
$2.48M
|
|
|
May 15, 2025
Q1 2025
|
Voya Investment Management LLC
Atlanta, GA |
SELL
|
- |
-26.1K- 72.03% |
$8.86K - $36.5K
|
10.1K
$278K
|
|
|
May 15, 2025
Q1 2025
|
Lion Point Capital, LP
New York, NY |
BUY
|
- |
644KNew |
$219K - $902K
|
644K
$17.7M
|
|
|
May 15, 2025
Q1 2025
|
Optiver Holding B.V.
Amsterdam, P7 |
BUY
|
- |
1.61K+ 227.94% |
$546 - $2.25K
|
2.31K
$63.4K
|
|
|
May 15, 2025
Q1 2025
|
Panagora Asset Management Inc
Boston, MA |
BUY
|
- |
131K+ 54.56% |
$44.5K - $183K
|
370K
$10.2M
|
|
|
May 15, 2025
Q1 2025
|
Ubs Oconnor LLC
Chicago, IL |
SELL
|
- |
-312K- 76.16% |
$106K - $437K
|
97.7K
$2.68M
|
|
|
May 15, 2025
Q1 2025
|
Rock Springs Capital Management LP
Baltimore, MD |
BUY
|
- |
383K+ 11.16% |
$130K - $536K
|
3.81M
$105M
|
|
|
May 15, 2025
Q1 2025
|
Manufacturers Life Insurance Company, The
Toronto, A6 |
SELL
|
- |
-26.6K- 60.5% |
$9.05K - $37.3K
|
17.4K
$477K
|
|
|
May 15, 2025
Q1 2025
|
Mirae Asset Global Etfs Holdings Ltd.
Central, K3 |
BUY
|
- |
2.82K+ 4.28% |
$960 - $3.95K
|
68.8K
$1.89M
|
|
|
May 15, 2025
Q1 2025
|
Mercer Global Advisors Inc
Denver, CO |
BUY
|
- |
24.1KNew |
$8.19K - $33.7K
|
24.1K
$660K
|
|
|
May 15, 2025
Q1 2025
|
Buckingham Strategic Partners
Saint Louis, MO |
BUY
|
- |
19.5KNew |
$6.62K - $27.3K
|
19.5K
$534K
|
|
|
May 15, 2025
Q1 2025
|
Vr Adviser, LLC
New York, NY |
SELL
|
- |
-6.68M- 65.16% |
$2.27M - $9.36M
|
3.57M
$98M
|
|
|
May 15, 2025
Q1 2025
|
Alamea Verwaltungs Gmb H
Edison, NJ |
BUY
|
- |
604KNew |
$205K - $846K
|
604K
$16.6M
|
|
|
May 15, 2025
Q1 2025
|
Nextech Invest, Ltd.
Zurich, V8 |
BUY
|
- |
12.1MNew |
$4.1M - $16.9M
|
12.1M
$331M
|
|
|
May 14, 2025
Q1 2025
|
State Of Wyoming
Cheyenne, WY |
BUY
|
- |
295KNew |
$100K - $414K
|
295K
$8.11M
|
|
|
May 14, 2025
Q1 2025
|
Huntington National Bank
Columbus, OH |
BUY
|
- |
800New |
$272 - $1.12K
|
800
$21.9K
|
|
|
May 13, 2025
Q1 2025
|
Caitong International Asset Management Co., LTD
Hong Kong, K3 |
BUY
|
- |
1New |
$0.34 - $1.4
|
1
$27.4
|
|
|
May 13, 2025
Q1 2025
|
Cibc World Markets Corp
New York, NY |
BUY
|
- |
13.2K+ 124.11% |
$4.48K - $18.4K
|
23.8K
$653K
|
|
|
May 13, 2025
Q1 2025
|
Coldstream Capital Management Inc
|
BUY
|
- |
1.1KNew |
$372 - $1.53K
|
1.1K
$30K
|
|
|
May 13, 2025
Q1 2025
|
Sterling Capital Management LLC
Charlotte, NC |
SELL
|
- |
-956- 50.32% |
$325 - $1.34K
|
944
$25.9K
|
|
|
May 13, 2025
Q1 2025
|
True Wealth Design, LLC
Akron, OH |
BUY
|
- |
289New |
$98.3 - $405
|
289
$7.93K
|
|
|
May 12, 2025
Q1 2025
|
Jpmorgan Chase & CO
New York, NY |
SELL
|
- |
-2.48M- 98.0% |
$844K - $3.48M
|
50.7K
$1.39M
|
|
|
May 12, 2025
Q1 2025
|
Simplex Trading, LLC
|
BUY
|
- |
3.42KNew |
$1.16K - $4.79K
|
3.42K
$93.9K
|
|
|
May 12, 2025
Q1 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
60K+ 109.33% |
$20.4K - $84K
|
115K
$3.15M
|
|
|
May 12, 2025
Q1 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
232KNew |
$79K - $325K
|
232K
$6.37M
|
|
|
May 08, 2025
Q1 2025
|
Pro Share Advisors LLC
|
SELL
|
- |
-9.02K- 23.85% |
$3.07K - $12.6K
|
28.8K
$790K
|
|
|
May 06, 2025
Q1 2025
|
Abel Hall, LLC
Baton Rouge, LA |
BUY
|
- |
13.7KNew |
$4.65K - $19.1K
|
13.7K
$375K
|
|
|
May 02, 2025
Q1 2025
|
Victory Capital Management Inc
|
SELL
|
- |
-368- 3.44% |
$125 - $515
|
10.3K
$284K
|
|
|
May 01, 2025
Q1 2025
|
Sbi Securities Co., Ltd.
Tokyo, M0 |
BUY
|
- |
1.15K+ 527.52% |
$391 - $1.61K
|
1.37K
$37.5K
|
|
|
Apr 28, 2025
Q1 2025
|
Principal Financial Group Inc
Des Moines, IA |
BUY
|
- |
10.4KNew |
$3.52K - $14.5K
|
10.4K
$284K
|
|
|
Apr 17, 2025
Q1 2025
|
Grimes & Company, Inc.
|
SELL
|
- |
-929- 6.19% |
$316 - $1.3K
|
14.1K
$386K
|
|
|
Apr 16, 2025
Q1 2025
|
North Crest Asset Manangement, LLC
|
BUY
|
- |
16.1KNew |
$5.46K - $22.5K
|
16.1K
$441K
|
|
|
Apr 15, 2025
Q1 2025
|
Sg Americas Securities, LLC
|
SELL
|
- |
-76.8K- 68.36% |
$26.1K - $107K
|
35.5K
$975K
|
|
| Q4 2024 | |||||||
|
May 29, 2025
Q4 2024
|
Rhumbline Advisers
Boston, MA |
BUY
|
- |
17.7K+ 11.48% |
$25.1K - $47.4K
|
172K
$4.71M
|
|
|
Apr 02, 2025
Q4 2024
|
Picton Mahoney Asset Management
Toronto, A6 |
BUY
|
- |
2.87KNew |
$4.08K - $7.69K
|
2.87K
$78.8K
|
|
|
Feb 18, 2025
Q4 2024
|
Gf Fund Management Co. Ltd.
Guangzhou, F4 |
BUY
|
- |
2.59KNew |
$3.68K - $6.95K
|
2.59K
$71.2K
|
|