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 2020-08-01
Market Cap1.355 Billion Shares Outstanding68.149 Million Avg 30-day Volume970.361 Thousand
P/E Ratio Dividend Yield EPS-1.43
Price/Sales144.052 Price cash flow ratio Price free cash flow ratio-27.4
Book Value0.93 Price to Tangible Book21.79 Alpha0.04
Short Interest Ratio % Short Interest to Float R-squared0.115322
BETA2.60297 52-week High/Low24.97 / 1.32 Stddev0.374743
View SEC Filings from MRSN instead.
Q1 2020 All Institutions Hedge Funds 1
Filers who had this stock in their top 10: 4 3 (0.2%)
13F Filers holding this stock: 85 36 (2.36%)
Aggregate 13F shares on 03/31/2020: 40.12 Million 18.865 Million
Aggregate 13F shares on 12/31/2019: 35.453 Million 15.537 Million
Percent change: 13.16% 21.42%
Funds creating new positions: 26 10
Funds Adding to an existing position: 34 16
Funds closing out their position: 10 3
Funds reducing their position: 13 5
1 hedge funds as identified by whalewisdom.com through public filings.

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Funds Holding MRSN (via 13F filings)

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*Shares are split adjusted
*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)

3.4 Thousand total shares from 1 transactions

Open Market Sells (S)

3.4 Thousand total shares from 1 transactions

Exercise Derivative Conversion (M)

none

Current/Former Insiders

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

FLORENCE ANTHONY A. JR.

  • 10% Owner
2,437,689 2020-07-28 1

BASKETT FOREST

  • 10% Owner
2,437,689 2020-07-28 2

SANDELL SCOTT D

  • 10% Owner
2,437,689 2020-07-28 3

SONSINI PETER W.

  • 10% Owner
2,437,689 2020-07-28 1

BERGSTROM DONALD A SEE REMARKS

  • Officer
98,566 2020-07-15 0

MANDELIA ASHISH VP, CONTROLLER

  • Officer
0 2020-07-02 2

MOTT DAVID M

  • Director
0 2020-07-01 4

ALLEVA LAWRENCE M

  • Director
0 2020-07-01 3

SPELLMAN DAVID A SVP, CFO AND TREASURER

  • Officer
0 2020-06-30 0

DERE WILLARD H

  • Director
13,290 2020-06-26 2

HACK ANDREW A. F.

  • Director
0 2020-06-25 2

HEGE KRISTEN

  • Director
0 2020-06-25 2

JONES ELAINE V

  • Director
0 2020-06-18 0

PROTOPAPAS ANNA

  • Director
0 2020-06-15 1

KERINS PATRICK J

  • 10% Owner
8,097,725 2020-06-10 1

BARRIS PETER J

  • Director
6,420 2020-05-27 0

NEW ENTERPRISE ASSOCIATES 14, L.P.

NEA PARTNERS 14, L.P.

NEA 14 GP, LTD

BASKETT FOREST

FLORENCE ANTHONY A. JR.

KERINS PATRICK J

SANDELL SCOTT D

SONSINI PETER W.

  • 10% Owner
2,892,877 2020-05-20 1

HUBER MARTIN H. JR.

  • Director
0 2020-04-13 2

NEW ENTERPRISE ASSOCIATES 14, L.P.

  • 10% Owner
7,959,520 2020-04-09 1

NEA PARTNERS 14, L.P.

NEA 14 GP, LTD

  • 10% Owner
7,959,520 2020-04-09 1

NAYEEM SARA M.

  • Director
0 2020-03-16 0

FMR LLC

  • 10% Owner
  • SEE REMARK 1
6,971,912 2020-02-10 0

LOWINGER TIMOTHY B CHIEF SCIENCE, TECH. OFFICER

  • Officer
0 2020-01-15 1

KAUFMAN MICHAEL J. SR., VP, CHEM., MFG,CONTROLS

  • Officer
0 2020-01-15 1

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

  • Officer
0 2020-01-15 1

HUEBNER DIRK CHIEF MEDICAL OFFICER

  • Officer
0 2020-01-15 1

DESCHUYTNER BRIAN SR. VP., FIN, PRODUCT STRATEGY

  • Officer
0 2020-01-15 1

BARRETT M JAMES

  • Director
0 2019-05-30 0

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

VISWANATHAN RAVI

  • 10% Owner
5,000,000 2018-10-17 0

NEW ENTERPRISE ASSOCIATES 14, L.P.

NEA PARTNERS 14, L.P.

NEA 14 GP, LTD

  • 10% Owner
82,978,668 2018-09-07 1

Insider Transactions Last 60 Days

Reporting Owners Transaction Date Transaction Code Shares Share Price Acquired or Disposed Shares Owned Following Transaction Combined shares owned after filing Direct/Indirect Ownership 10b-5

MANDELIA ASHISH - Officer VP, CONTROLLER

2020-07-02 S 3,383 $22.49 d 0 0.00 direct yes

MANDELIA ASHISH - Officer VP, CONTROLLER

2020-06-30 P 3,383 $4.87 a 3,383 0.00 direct

HACK ANDREW A. F. - Director

2020-06-25 A 9,200 a 9,200 0.00 direct

ALLEVA LAWRENCE M - Director

2020-06-25 A 9,200 a 9,200 0.00 direct

HEGE KRISTEN - Director

2020-06-25 A 9,200 a 9,200 0.00 direct

DERE WILLARD H - Director

2020-06-25 A 9,200 a 9,200 0.00 direct

MOTT DAVID M - Director

2020-06-25 A 9,200 a 9,200 0.00 direct
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

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