Mersana Therapeutics, Inc.

NasdaqGS:MRSN Stock Report

Market Cap: US$570.1m

Mersana Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of MRSN?
Owner TypeNumber of SharesOwnership Percentage
Private Companies24,5330.0202%
Individual Insiders1,497,9371.23%
General Public5,046,6254.16%
VC/PE Firms19,991,67316.5%
Hedge Funds35,482,97129.3%
Institutions59,259,26848.9%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 12.3%.


Top Shareholders

Top 25 shareholders own 86.94% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
16%
EcoR1 Capital, LLC
19,364,688US$91.0m0%2.5%
9.34%
VR Adviser, LLC
11,328,000US$53.2m0%2.37%
7.99%
Balyasny Asset Management L.P.
9,698,147US$45.6m92.4%0.12%
7.14%
Bain Capital Life Sciences Investors, LLC
8,663,673US$40.7m0%2.99%
6.47%
BlackRock, Inc.
7,844,282US$36.9m-1.61%no data
5.29%
Silverarc Capital Management, LLC
6,420,136US$30.2m28.4%7.81%
5.14%
The Vanguard Group, Inc.
6,237,588US$29.3m0.83%no data
4.93%
Nextech Invest Ltd.
5,978,327US$28.1m0%5.07%
3.4%
Morgan Stanley, Investment Banking and Brokerage Investments
4,128,150US$19.4m324%no data
2.8%
Millennium Management LLC
3,394,440US$16.0m55.9%0.01%
2.51%
Rock Springs Capital Management LP
3,046,782US$14.3m-10.5%0.38%
1.95%
Acuta Capital Partners, LLC
2,368,000US$11.1m2,280%5.66%
1.92%
State Street Global Advisors, Inc.
2,329,434US$10.9m0.72%no data
1.89%
Geode Capital Management, LLC
2,297,136US$10.8m6.46%no data
1.59%
Citadel Advisors LLC
1,926,931US$9.1m19.3%0.01%
1.08%
5AM Venture Management, LLC
1,305,000US$6.1m0%1.1%
1.04%
Philosophy Capital Management LLC
1,264,567US$5.9m-46%1.19%
0.94%
Schonfeld Strategic Advisors LLC
1,139,407US$5.4m0%0.04%
0.94%
Deutsche Asset & Wealth Management
1,139,232US$5.4m1,710%no data
0.9%
Baker Bros. Advisors LP
1,086,115US$5.1m0%0.06%
0.82%
Affinity Asset Advisors, LLC
1,000,000US$4.7m-64.9%0.92%
0.77%
Northern Trust Global Investments
931,406US$4.4m-9.62%no data
0.77%
Jacobs Levy Equity Management Inc
930,607US$4.4m0%0.02%
0.71%
Renaissance Technologies LLC
865,731US$4.1m-6.5%0.01%
0.64%
Atom Investors LP
774,659US$3.6m164%0.6%
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