Institutional Ownership Mersana Therapeutics, Inc. (MRSN)
This table provides information about the institutional ownership of Mersana Therapeutics, Inc. (MRSN). We have compiled data on the 14 institutions that hold shares in the stock, with a total of 22.2 Million shares, which have been reported (via 13F filing form) to have a value of $610 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Nextech Invest Ag
|
Feb 14, 2025 Q4 2024 |
12,067,246
shares
|
$331 Million
3.22% of portfolio
|
Q3 2024
Added 26.68%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
8,383,910
shares
|
$230 Million
0.0% of portfolio
|
Q2 2024
Added 3.56%
|
|
|
Decheng Capital Management Iii (Cayman), LLC
|
Nov 13, 2023 Q3 2023 |
904,268
shares
|
$24.8 Million
0.64% of portfolio
|
Q1 2022
New holding
|
|
|
Clari Vest Asset Management LLC
San Diego, CA |
Nov 12, 2024 Q3 2024 |
500,498
shares
|
$13.7 Million
0.09% of portfolio
|
Q2 2024
Added 6.07%
|
|
|
Nuveen Asset Management, LLC
Chicago, IL |
Feb 14, 2025 Q4 2024 |
232,223
shares
|
$6.37 Million
0.0% of portfolio
|
Q4 2024
Added 53.59%
|
|
|
Alpha Paradigm Partners, LLC
Chicago, IL |
Feb 13, 2023 Q4 2022 |
58,578
shares
|
$1.61 Million
0.14% of portfolio
|
Q4 2022
New holding
|
|
|
Luminus Management LLC
Houston, TX |
Oct 03, 2025 Q3 2025 |
50,000
shares
|
$1.37 Million
0.36% of portfolio
|
Q3 2025
Reduced 95.19%
|
|
|
Prio Wealth Limited Partnership
Boston, MA |
Oct 21, 2024 Q3 2024 |
23,529
shares
|
$645,400
0.0% of portfolio
|
Q1 2018
New holding
|
|
|
Cwm, LLC
|
Oct 15, 2025 Q3 2025 |
2,878
shares
|
$78,943
0.0% of portfolio
|
Q3 2025
Reduced 98.26%
|
|
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
Nov 14, 2025 Q3 2025 |
2,500
shares
|
$68,575
0.0% of portfolio
|
Q3 2025
Reduced 3.77%
|
|
|
Ifp Advisors, Inc
|
Dec 02, 2025 Q3 2025 |
610
shares
|
$16,732
0.0% of portfolio
|
Q3 2025
Reduced 9.9%
|
|
|
Ever Source Wealth Advisors, LLC
|
Nov 10, 2025 Q3 2025 |
14
shares
|
$384
0.0% of portfolio
|
Q3 2025
Reduced 99.75%
|
|
|
North Star Investment Management Corp.
Chicago, IL |
Oct 22, 2025 Q3 2025 |
6
shares
|
$164
0.0% of portfolio
|
Q3 2025
Reduced 96.0%
|
|
|
Concourse Financial Group Securities, Inc.
Birmingham, AL |
Aug 12, 2025 Q2 2025 |
0
shares
|
$0
100.0% of portfolio
|
Q2 2025
New holding
|
|