Mersana Therapeutics Inc (MRSN)

HEALTH CARE: PHARMACEUTICALS
SIC: PHARMACEUTICAL PREPARATIONS

840 MEMORIAL DRIVE CAMBRIDGE, MA 02139

Mersana Therapeutics, Inc. produces novel drug conjugates. The Company specializes in oncology agents for the treatment of tumors and cancer. Mersana Therapeutics serves the healthcare industry in the United States.

Data as of 2021-05-08 11:50:41 -0400
Market Cap1.065 Billion Shares Outstanding69.051 Million Avg 30-day Volume533.048 Thousand
P/E Ratio Dividend Yield EPS
Price/Sales Debt to Equity EBITDA
Price to Book Value0.0 Forward PE-9.39 Enterprise Value
Total Cash Current Debt Gross Profit
BETA1.74883 52-week High/Low29.09 / 9.0 Next Earnings Date Price to Cash FLow (P/CF) -9999999.0
Data provided by IEX Cloud
View SEC Filings from MRSN instead.
Q4 2020 All 13F Filers Prior Change Hedge Funds 1 Prior Change
In top 10: 6 8 -25.0% 4 (0.24%) 6 (0.37%) -33.33%
Funds Holding: 153 137 11.68% 54 (3.24%) 54 (3.36%) 0.0%
13F shares: 68.942 Million 68.691 Million 0.36% 33.338 Million 32.836 Million 1.53%
% Ownership 48.6703 47.9371 1.53%
New Positions: 35 25 40.0% 11 13 -15.38%
Increased Positions 54 55 -1.82% 20 15 33.33%
Closed Positions 19 21 -9.52% 11 16 -31.25%
Reduced Positions 45 38 18.42% 16 21 -23.81%
Total Calls 482.118 Thousand 501.963 Thousand -3.95% 196.1 Thousand 331.1 Thousand -40.77%
Total Puts 215.785 Thousand 159.922 Thousand 34.93% 154.4 Thousand 25.4 Thousand 507.87%
PUT/CALL Ratio 0.45 0.32 40.63% 0.79 0.08 887.5%
1 hedge funds and active managers as identified by whalewisdom.com through public filings.

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Funds Holding MRSN (via 13F filings)

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*Please note that if a filer hasn't submitted a 13F filing for a quarter then the filer's shares will be listed as "Sold All"

Mutual Funds Holding MRSN BETA

Active Schedule 13D and 13G filings

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Open Market Buys/Sells Last 60 Days

Open Market Buys (P)

none

Open Market Sells (S)

12.3 Thousand total shares from 6 transactions

Exercise Derivative Conversion (M)

12.3 Thousand total shares from 6 transactions

Current/Former Insiders

Insider Name Type Last Reported Shares Held Last Reported Date Filings in past year

CARVAJAL ALEJANDRA CHIEF LEGAL OFFICER

  • Officer
137,500 2021-04-26 2

LOWINGER TIMOTHY B CHIEF SCIENCE & TECH. OFFICER

  • Officer
131,593 2021-04-20 10

DIAZ ALLENE M.

  • Director
0 2021-03-09 2

KAUFMAN MICHAEL J. SR VP, CHEMISTRY, MAN.&CONTROL

  • Officer
4,710 2021-01-15 1

PROTOPAPAS ANNA PRESIDENT & CEO

  • Officer
  • Director
224,922 2021-01-15 1

HACK ANDREW A. F.

  • Director
0 2021-01-15 3

HEGE KRISTEN

  • Director
0 2021-01-15 2

MOTT DAVID M

  • Director
0 2021-01-15 5

ALLEVA LAWRENCE M

  • Director
0 2021-01-15 3

DERE WILLARD H

  • Director
0 2021-01-15 2

DESCHUYTNER BRIAN SR. VP., FIN, PRODUCT STRATEGY

  • Officer
6,423 2021-01-15 1

MANDELIA ASHISH VP, CONTROLLER

  • Officer
0 2021-01-15 3

HUBER MARTIN H. JR.

  • Director
0 2021-01-15 1

YANG ARVIN CHIEF MEDICAL OFFICER

  • Officer
0 2020-11-30 2

JACK EVA M. CHIEF BUS. OFFICER, TRES, SEC.

  • Officer
0 2020-09-14 1

FLORENCE ANTHONY A. JR.

  • 10% Owner
5,972,990 2020-09-14 1

BASKETT FOREST

  • 10% Owner
5,971,382 2020-09-14 1

SANDELL SCOTT D

  • 10% Owner
5,970,885 2020-09-14 1

KERINS PATRICK J

  • 10% Owner
5,963,114 2020-09-14 1

SONSINI PETER W.

  • 10% Owner
5,960,861 2020-09-14 1

NEW ENTERPRISE ASSOCIATES 14, L.P.

  • 10% Owner
5,959,520 2020-09-14 1

NEA PARTNERS 14, L.P.

NEA 14 GP, LTD

  • 10% Owner
5,959,520 2020-09-14 1

HUEBNER DIRK CHIEF MEDICAL OFFICER

  • Officer
0 2020-01-15 0

NEW ENTERPRISE ASSOCIATES 14, L.P.

SONSINI PETER W.

BASKETT FOREST

FLORENCE ANTHONY A. JR.

KERINS PATRICK J

NEA 14 GP, LTD

NEA PARTNERS 14, L.P.

SANDELL SCOTT D

  • 10% Owner
11,959,520 2019-08-28 1

NEW ENTERPRISE ASSOCIATES 14, L.P.

SONSINI PETER W.

NEA 14 GP, LTD

NEA PARTNERS 14, L.P.

BARRIS PETER J

BASKETT FOREST

FLORENCE ANTHONY A. JR.

KERINS PATRICK J

SANDELL SCOTT D

  • 10% Owner
11,890,138 2019-03-05 1

FOSTER WAYNE VICE PRESIDENT OF FINANCE

  • Officer
0 2019-01-23 0

SPELLMAN DAVID A CHIEF FINANCIAL OFFICER

  • Officer
0 2019-01-23 0

BERGSTROM DONALD A CHIEF MEDICAL OFFICER

  • Officer
0 2018-02-02 0

NAYEEM SARA M.

  • Director
0 2018-01-02 0

NEW ENTERPRISE ASSOCIATES 14, L.P.

NEA PARTNERS 14, L.P.

NEA 14 GP, LTD

  • 10% Owner
8,140,138 2017-07-03 0

BARRIS PETER J

  • 10% Owner
8,140,138 2017-07-03 0

BARRETT M JAMES

  • 10% Owner
8,140,138 2017-07-03 0

VISWANATHAN RAVI

  • 10% Owner
8,140,138 2017-07-03 0

FMR LLC

  • SEE REMARK 1
No longer subject to file 2017-07-03 0

JONES ELAINE V

  • Director
0 2017-06-27 0

Insider Transactions Last 60 Days

Reporting Owners Filing Date Trans Date Trans Code Shares Share Price Acquired
Disposed
Shares Owned after D/I 10b5 Perf 1d* Perf 5d* Perf 1m* Max Gain Max Gain Days Max Loss Max Loss Days

CARVAJAL ALEJANDRA - Officer CHIEF LEGAL OFFICER

2021-04-28 16:32:45 -0400 2021-04-26 A 26,500 a 25,000 direct

CARVAJAL ALEJANDRA - Officer CHIEF LEGAL OFFICER

2021-04-28 16:32:45 -0400 2021-04-26 A 112,500 a 112,500 direct

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 M 2,227 d 86,092 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 M 2,227 $6.16 a 33,671 direct yes 5.9925 -0.5618 5.9925 2 -0.5618 6

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 M 1,875 d 14,057 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 S 1,875 $15.91 d 31,444 direct yes 5.9925 -0.5618 5.9925 2 -0.5618 6

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 S 2,227 $15.91 d 31,444 direct yes 5.9925 -0.5618 5.9925 2 -0.5618 6

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-04-22 16:16:59 -0400 2021-04-20 M 1,875 $3.51 a 33,319 direct yes 5.9925 -0.5618 5.9925 2 -0.5618 6

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 1,874 $3.51 a 33,318 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 2,227 d 88,319 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 1,874 d 17,807 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 S 1,875 $17.50 d 31,444 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 2,227 $6.16 a 33,671 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 1,875 d 15,932 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 S 2,227 $17.50 d 31,444 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 1,875 $3.51 a 33,319 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 S 1,874 $17.50 d 31,444 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 2,227 d 90,546 direct yes

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 M 2,227 $6.16 a 33,671 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

LOWINGER TIMOTHY B - Officer CHIEF SCIENCE & TECH. OFFICER

2021-03-24 17:00:56 -0400 2021-03-22 S 2,227 $17.50 d 31,444 direct yes -2.0612 2.8857 -9.1873 6.4193 7 -12.1908 30

* -

Transaction Code Definitions
Code Definition
A Grant, award or other acquisition pursuant to Rule 16b-3(d)
C Conversion of derivative security
D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e)
E Expiration of short derivative position
F Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3
G Bona fide gift
H Expiration (or cancellation) of long derivative position with value received
I Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities
J Other acquisition or disposition
L Small acquisition under Rule 16a-6
M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3
O Exercise of out-of-the-money derivative security
P Open market or private purchase of non-derivative or derivative security
S Open market or private sale of non-derivative or derivative security
U Disposition pursuant to a tender of shares in a change of control transaction
W Acquisition or disposition by will or the laws of descent and distribution
X Exercise of in-the-money or at-the-money derivative security
Z Deposit into or withdrawal from voting trust

IBR Securities Loan Availability

Updated throughout the day, this shows the number of shares available to borrow. Data provided by Interactive Brokers

Security Date/Time Rebate Rate Fee Rate Shares Available
MERSANA THERAPEUTICS INC MRSN 2021-05-10 22:15:04 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 21:45:02 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 21:15:02 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 20:45:03 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 20:15:03 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 19:45:03 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 19:15:03 UTC -0.5164 0.5664 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 18:45:03 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 18:15:03 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 17:45:02 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 17:15:03 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 16:45:03 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 16:15:03 UTC -0.2769 0.3269 950000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 15:45:03 UTC -0.2769 0.3269 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 15:15:03 UTC -0.2769 0.3269 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 14:45:04 UTC -0.286 0.336 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 14:15:04 UTC -0.286 0.336 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 13:45:04 UTC -0.286 0.336 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 13:15:03 UTC -0.286 0.336 850000
MERSANA THERAPEUTICS INC MRSN 2021-05-10 12:45:02 UTC -0.286 0.336 850000

Current Active Short Positions

Holder Issuer Net Short Position Position Date Origin
RUSSELL INVESTMENT CO- U.S. Small Cap Equity Fund MRSN -3573.0 shares, $-64385.46 2020-10-31 N-PORT
RUSSELL INVESTMENT FUNDS- U.S. Small Cap Equity Fund MRSN -500.0 shares, $-13305.0 2020-12-31 N-PORT

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