Mersana Therapeutics Inc. (MRSN) NASDAQ

$6.43 -0.31 (-4.60%)

Market Cap: $484.69M

As of 12/01/21 04:00 PM EST. Market closed.

(MRSN)

Mersana Therapeutics Inc. (MRSN) NASDAQ

$6.43 -0.31 (-4.60%)

Market Cap: $484.69M

As of 12/01/21 04:00 PM EST. Market closed.

Mersana Therapeutics is a clinical-stage biopharmaceutical company using its differentiated and proprietary ADC platforms to rapidly develop novel ADCs with optimal efficacy, safety and tolerability to meaningfully improve the lives of people fighting cancer. Mersana's lead product candidate, upifitamab rilsodotin (UpRi), is a Dolaflexin ADC targeting NaPi2b and is in the expansion portion of a ... read more

Mersana Therapeutics is a clinical-stage biopharmaceutical company using its differentiated and proprietary ADC platforms to rapidly develop novel ADCs with optimal efficacy, safety and tolerability to meaningfully improve the lives of people fighting cancer. Mersana's lead product candidate, upifitamab rilsodotin (UpRi), is a Dolaflexin ADC targeting NaPi2b and is in the expansion portion of a Phase 1 proof-of-concept clinical study in patients with ovarian cancer and NSCLC adenocarcinoma. XMT-1592, Mersana's second ADC product candidate targeting NaPi2b-expressing tumors, was created using Mersana's customizable and homogeneous Dolasynthen platform and is in the dose escalation portion of a Phase 1 proof-of-concept clinical study. The Company's early-stage programs include XMT-1660, a Dolasynthen ADC targeting B7-H4, as well as XMT-2056, a STING-agonist ADC developed using the Company's Immunosynthen platform. In addition, multiple partners are using Mersana's Dolaflexin platform to advance their ADC pipelines. read less

COMPANY PROFILE
Sector
Manufacturing
Industry
Pharmaceutical Preparation Manufacturing
CEO
Anna Protopapas
Full Time Employees
110
URL
Address
840 Memorial Dr, Massachusetts, Cambridge, 02139-3789.
Sector
Manufacturing
Industry
Pharmaceutical Preparation Manufacturing
CEO
Anna Protopapas
Full Time Employees
110
CEO Compensation (Base)
$515,000
Address
840 Memorial Dr, Massachusetts, Cambridge, 02139-3789.
KEY STATS
Open
$7
Previous Close
$6.74
Days Range
$6.42 - $7.01
52 week range
$6.34 - $29.09
Volume
681,963
Avg. Volume (30 days)
663,303
Market Cap
$484.69M
Dividend Yield
0.00%
P/E
-
Shares Outstanding
71,911,833
Open
$7
Previous Close
$6.74
Days Range
$6.42 - $7.01
52 week range
$6.34 - $29.09
Volume
681,963
Avg. Volume (30 days)
663,303
Market Cap
$484.69M
Dividend Yield
0.00%
P/E
-
Shares Outstanding
71,911,833

Open in: SeekingAlpha Yahoo Finance Fidelity MorningStar

Open in: SeekingAlpha Yahoo Finance Fidelity MorningStar

INSIDER TRANSACTIONS FOR MERSANA THERAPEUTICS INC
Owner Relationship Date Transaction Cost # Shares Value($) Total Shares Form 4
Lowinger Timothy B Chief Science & Tech. Officer Aug 20, 2021 Option Exercise $6.16 2,216 13,651 77,389 Aug 24, 2021, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Aug 20, 2021 Sale $11.01 2,216 24,398 75,173 Aug 24, 2021, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Jul 20, 2021 Option Exercise $6.16 2,227 13,718 77,400 Jul 22, 2021, 04:32 PM
Lowinger Timothy B Chief Science & Tech. Officer Jul 20, 2021 Sale $12.11 2,227 26,969 75,173 Jul 22, 2021, 04:32 PM
Lowinger Timothy B Chief Science & Tech. Officer Jul 19, 2021 Sale $12.02 8,496 102,122 75,173 Jul 19, 2021, 08:50 PM
Lowinger Timothy B Chief Science & Tech. Officer Jul 16, 2021 Sale $12.47 7,775 96,954 83,669 Jul 19, 2021, 08:50 PM
Kaufman Michael J. Chief Manufacturing Officer Jul 19, 2021 Sale $12.02 6,312 75,870 32,622 Jul 19, 2021, 08:50 PM
Kaufman Michael J. Chief Manufacturing Officer Jul 16, 2021 Sale $12.47 5,776 72,027 38,934 Jul 19, 2021, 08:50 PM
Protopapas Anna President & CEO Jul 19, 2021 Sale $12.02 21,901 263,250 282,978 Jul 19, 2021, 08:49 PM
Protopapas Anna President & CEO Jul 16, 2021 Sale $12.47 20,043 249,936 304,879 Jul 19, 2021, 08:49 PM
Lowinger Timothy B CS & Technology Officer Jul 08, 2021 Option Exercise $1.40 20,000 28,000 51,444 Jul 09, 2021, 05:25 PM
Lowinger Timothy B CS & Technology Officer Jul 01, 2021 Option Exercise $3.52 1,886 6,644 33,330 Jul 02, 2021, 04:32 PM
Lowinger Timothy B CS & Technology Officer Jul 01, 2021 Sale $13.60 1,886 25,650 31,444 Jul 02, 2021, 04:32 PM
Mandelia Ashish VP, Controller Jul 01, 2021 Sale $13.60 942 12,811 0 Jul 02, 2021, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Jun 21, 2021 Option Exercise $6.16 2,220 13,670 33,662 Jun 23, 2021, 04:30 PM
Lowinger Timothy B Chief Science & Tech. Officer Jun 21, 2021 Sale $13.78 2,220 30,592 31,444 Jun 23, 2021, 04:30 PM
Alleva Lawrence M Director Jun 01, 2021 Buy $14.38 1,035 14,883 2,120 Jun 03, 2021, 06:58 PM
Lowinger Timothy B Chief Science & Tech. Officer Apr 20, 2021 Option Exercise $4.95 4,102 20,300 33,671 Apr 22, 2021, 04:16 PM
Lowinger Timothy B Chief Science & Tech. Officer Apr 20, 2021 Sale $15.91 4,102 65,263 31,444 Apr 22, 2021, 04:16 PM
Lowinger Timothy B Chief Science & Tech. Officer Mar 22, 2021 Option Exercise $4.95 8,203 40,596 33,671 Mar 24, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Mar 22, 2021 Sale $17.50 8,203 143,553 31,444 Mar 24, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Feb 22, 2021 Option Exercise $4.95 8,203 40,596 33,671 Feb 24, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Feb 22, 2021 Sale $20.01 8,203 164,142 31,444 Feb 24, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Jan 20, 2021 Option Exercise $4.95 8,203 40,596 33,671 Jan 22, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Jan 20, 2021 Sale $21.54 8,203 176,693 31,444 Jan 22, 2021, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Jan 15, 2021 Option Exercise $21.09 2,324 49,013 31,444 Jan 20, 2021, 07:05 PM
Kaufman Michael J. Sr VP, Chemistry, Man.&Control Jan 15, 2021 Option Exercise $21.09 1,957 41,273 4,710 Jan 20, 2021, 07:04 PM
DeSchuytner Brian Sr. VP., FIN, Product Strategy Jan 15, 2021 Option Exercise $21.09 1,162 24,507 6,423 Jan 20, 2021, 07:04 PM
Protopapas Anna President & CEO Jan 15, 2021 Option Exercise $21.09 5,198 109,626 224,922 Jan 20, 2021, 07:04 PM
Mandelia Ashish VP, Controller Jan 15, 2021 Option Exercise $21.09 289 6,095 545 Jan 20, 2021, 07:03 PM
Mandelia Ashish VP, Controller Jan 19, 2021 Sale $21.28 545 11,598 0 Jan 20, 2021, 07:03 PM
Hack Andrew A. F. Director Jan 11, 2021 Buy $18.52 75,000 1,389,000 3,620,667 Jan 12, 2021, 07:29 PM
Hack Andrew A. F. Director Jan 08, 2021 Buy $18.39 100,000 1,839,000 3,545,667 Jan 12, 2021, 07:29 PM
Hack Andrew A. F. Director Jan 12, 2021 Buy $18.16 75,000 1,362,000 3,695,667 Jan 12, 2021, 07:29 PM
Mandelia Ashish VP, Controller Jan 04, 2021 Sale $26.76 247 6,610 0 Jan 06, 2021, 07:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Dec 28, 2020 Option Exercise $1.40 9,000 12,600 25,851 Dec 30, 2020, 05:00 PM
Lowinger Timothy B Chief Science & Tech. Officer Dec 21, 2020 Option Exercise $4.95 8,203 40,596 2,227 Dec 22, 2020, 04:34 PM
Lowinger Timothy B Chief Science & Tech. Officer Dec 21, 2020 Sale $25.60 8,203 209,956 0 Dec 22, 2020, 04:34 PM
Lowinger Timothy B Chief Science & Tech. Officer Nov 20, 2020 Option Exercise $4.95 8,203 40,596 2,227 Nov 24, 2020, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Nov 20, 2020 Sale $23.05 8,203 189,079 0 Nov 24, 2020, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Oct 21, 2020 Option Exercise $4.95 4,101 20,296 19,078 Oct 22, 2020, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Oct 20, 2020 Option Exercise $2.56 20,953 53,605 16,851 Oct 22, 2020, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Oct 21, 2020 Sale $17.50 4,101 71,768 16,851 Oct 22, 2020, 04:31 PM
Lowinger Timothy B Chief Science & Tech. Officer Oct 20, 2020 Sale $16.74 4,102 68,667 0 Oct 22, 2020, 04:31 PM
Lowinger Timothy B Chief Science, Tech. Officer Sep 21, 2020 Option Exercise $4.95 8,203 40,596 16,865 Sep 23, 2020, 04:30 PM
Lowinger Timothy B Chief Science, Tech. Officer Sep 21, 2020 Sale $20.66 20,614 425,832 12,411 Sep 23, 2020, 04:30 PM
Jack Eva M. Chief Bus. Officer, Tres, Sec. Sep 14, 2020 Option Exercise $1.53 35,248 53,929 35,248 Sep 16, 2020, 06:31 PM
Jack Eva M. Chief Bus. Officer, Tres, Sec. Sep 14, 2020 Sale $22.00 35,248 775,456 0 Sep 16, 2020, 06:31 PM
Mandelia Ashish VP, Controller Jun 30, 2020 Buy $4.87 3,383 16,475 3,383 Jul 06, 2020, 04:15 PM
Mandelia Ashish VP, Controller Jul 02, 2020 Sale $22.49 3,383 76,084 0 Jul 06, 2020, 04:15 PM
Alleva Lawrence M Director Jun 01, 2020 Buy $22.95 1,085 24,901 1,085 Jun 03, 2020, 05:30 PM
SANDELL SCOTT D 10% Owner Apr 14, 2020 Sale $9.22 274 2,526 0 Apr 14, 2020, 05:54 PM
SANDELL SCOTT D 10% Owner Apr 13, 2020 Sale $8.98 1,650 14,812 0 Apr 14, 2020, 05:54 PM
SANDELL SCOTT D 10% Owner Apr 14, 2020 Sale $9.22 274 2,526 0 Apr 14, 2020, 05:54 PM
BASKETT FOREST 10% Owner Apr 13, 2020 Sale $8.58 3,190 27,358 0 Apr 14, 2020, 05:54 PM
SANDELL SCOTT D 10% Owner Apr 13, 2020 Sale $8.50 20,914 177,775 0 Apr 13, 2020, 09:10 PM
Florence Anthony A. Jr. 10% Owner Apr 13, 2020 Sale $8.50 20,914 177,775 0 Apr 13, 2020, 09:06 PM
BASKETT FOREST 10% Owner Apr 13, 2020 Sale $8.50 20,914 177,775 0 Apr 13, 2020, 09:06 PM
New Enterprise Associates 14, L.P. 10% Owner Aug 28, 2019 Sale $2.91 1,211 3,524 11,959,520 Apr 13, 2020, 08:39 PM
New Enterprise Associates 14, L.P. 10% Owner Aug 28, 2019 Option Exercise $0.05 70,593 3,530 11,960,731 Apr 13, 2020, 08:39 PM
Hack Andrew A. F. Director Apr 07, 2020 Buy $5.99 3,445,667 20,649,463 3,445,667 Apr 09, 2020, 04:11 PM
MOTT DAVID M Director Apr 07, 2020 Buy $5.59 538,599 3,010,768 538,599 Apr 09, 2020, 03:31 PM
MOTT DAVID M Director Mar 05, 2019 Buy $4.00 3,750,000 15,000,000 11,890,138 Mar 06, 2019, 04:39 PM
New Enterprise Associates 14, L.P. 10% Owner Mar 05, 2019 Buy $4.00 3,750,000 15,000,000 11,890,138 Mar 06, 2019, 04:38 PM
Lowinger Timothy B Chief Scientific Officer Sep 24, 2018 Option Exercise $1.40 3,500 4,900 15,991 Sep 25, 2018, 05:07 PM
Lowinger Timothy B Chief Scientific Officer Sep 24, 2018 Sale $11.63 3,500 40,705 12,491 Sep 25, 2018, 05:07 PM
Lowinger Timothy B Chief Scientific Officer Aug 27, 2018 Option Exercise $7.43 3,500 26,005 15,991 Aug 29, 2018, 04:24 PM
Lowinger Timothy B Chief Scientific Officer Aug 27, 2018 Sale $13.15 3,500 46,025 12,491 Aug 29, 2018, 04:24 PM
Lowinger Timothy B Chief Scientific Officer Jul 23, 2018 Sale $11.06 3,500 38,710 12,491 Jul 25, 2018, 04:04 PM
Lowinger Timothy B Chief Scientific Officer Jul 03, 2018 Option Exercise $1.40 10,000 14,000 15,991 Jul 05, 2018, 06:59 PM
Lowinger Timothy B Chief Scientific Officer Feb 21, 2018 Option Exercise $6.98 5,911 41,259 5,911 Feb 23, 2018, 04:01 PM
Foster Wayne Vice President of Finance Jan 30, 2018 Option Exercise $3.03 14,705 44,582 71,083 Feb 01, 2018, 04:01 PM
Protopapas Anna President and CEO Dec 20, 2017 Option Exercise $1.53 10,417 15,938 130,719 Dec 21, 2017, 04:06 PM
Viswanathan Ravi 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:20 PM
Sonsini Peter W. 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:19 PM
SANDELL SCOTT D 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:19 PM
MOTT DAVID M Director Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:18 PM
KERINS PATRICK J 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:18 PM
Florence Anthony A. Jr. 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:17 PM
BASKETT FOREST 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:17 PM
BARRIS PETER J 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:16 PM
BARRETT M JAMES 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:16 PM
New Enterprise Associates 14, L.P. 10% Owner Jul 03, 2017 Buy $15.00 1,000,000 15,000,000 8,140,138 Jul 06, 2017, 05:16 PM
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Buy Sale Option Exercise
Owner Relationship Date Value($)
Lowinger Timothy B Chief Science & Tech. Officer 08/20/2021 13,651
Lowinger Timothy B Chief Science & Tech. Officer 08/20/2021 24,398
Lowinger Timothy B Chief Science & Tech. Officer 07/20/2021 13,718
Lowinger Timothy B Chief Science & Tech. Officer 07/20/2021 26,969
Lowinger Timothy B Chief Science & Tech. Officer 07/19/2021 102,122
Lowinger Timothy B Chief Science & Tech. Officer 07/16/2021 96,954
Kaufman Michael J. Chief Manufacturing Officer 07/19/2021 75,870
Kaufman Michael J. Chief Manufacturing Officer 07/16/2021 72,027
Protopapas Anna President & CEO 07/19/2021 263,250
Protopapas Anna President & CEO 07/16/2021 249,936
Lowinger Timothy B CS & Technology Officer 07/08/2021 28,000
Lowinger Timothy B CS & Technology Officer 07/01/2021 6,644
Lowinger Timothy B CS & Technology Officer 07/01/2021 25,650
Mandelia Ashish VP, Controller 07/01/2021 12,811
Lowinger Timothy B Chief Science & Tech. Officer 06/21/2021 13,670
Lowinger Timothy B Chief Science & Tech. Officer 06/21/2021 30,592
Alleva Lawrence M Director 06/01/2021 14,883
Lowinger Timothy B Chief Science & Tech. Officer 04/20/2021 20,300
Lowinger Timothy B Chief Science & Tech. Officer 04/20/2021 65,263
Lowinger Timothy B Chief Science & Tech. Officer 03/22/2021 40,596
Lowinger Timothy B Chief Science & Tech. Officer 03/22/2021 143,553
Lowinger Timothy B Chief Science & Tech. Officer 02/22/2021 40,596
Lowinger Timothy B Chief Science & Tech. Officer 02/22/2021 164,142
Lowinger Timothy B Chief Science & Tech. Officer 01/20/2021 40,596
Lowinger Timothy B Chief Science & Tech. Officer 01/20/2021 176,693
Lowinger Timothy B Chief Science & Tech. Officer 01/15/2021 49,013
Kaufman Michael J. Sr VP, Chemistry, Man.&Control 01/15/2021 41,273
DeSchuytner Brian Sr. VP., FIN, Product Strategy 01/15/2021 24,507
Protopapas Anna President & CEO 01/15/2021 109,626
Mandelia Ashish VP, Controller 01/15/2021 6,095
Mandelia Ashish VP, Controller 01/19/2021 11,598
Hack Andrew A. F. Director 01/11/2021 1,389,000
Hack Andrew A. F. Director 01/08/2021 1,839,000
Hack Andrew A. F. Director 01/12/2021 1,362,000
Mandelia Ashish VP, Controller 01/04/2021 6,610
Lowinger Timothy B Chief Science & Tech. Officer 12/28/2020 12,600
Lowinger Timothy B Chief Science & Tech. Officer 12/21/2020 40,596
Lowinger Timothy B Chief Science & Tech. Officer 12/21/2020 209,956
Lowinger Timothy B Chief Science & Tech. Officer 11/20/2020 40,596
Lowinger Timothy B Chief Science & Tech. Officer 11/20/2020 189,079
Lowinger Timothy B Chief Science & Tech. Officer 10/21/2020 20,296
Lowinger Timothy B Chief Science & Tech. Officer 10/20/2020 53,605
Lowinger Timothy B Chief Science & Tech. Officer 10/21/2020 71,768
Lowinger Timothy B Chief Science & Tech. Officer 10/20/2020 68,667
Lowinger Timothy B Chief Science, Tech. Officer 09/21/2020 40,596
Lowinger Timothy B Chief Science, Tech. Officer 09/21/2020 425,832
Jack Eva M. Chief Bus. Officer, Tres, Sec. 09/14/2020 53,929
Jack Eva M. Chief Bus. Officer, Tres, Sec. 09/14/2020 775,456
Mandelia Ashish VP, Controller 06/30/2020 16,475
Mandelia Ashish VP, Controller 07/02/2020 76,084
Alleva Lawrence M Director 06/01/2020 24,901
SANDELL SCOTT D 10% Owner 04/14/2020 2,526
SANDELL SCOTT D 10% Owner 04/13/2020 14,812
SANDELL SCOTT D 10% Owner 04/14/2020 2,526
BASKETT FOREST 10% Owner 04/13/2020 27,358
SANDELL SCOTT D 10% Owner 04/13/2020 177,775
Florence Anthony A. Jr. 10% Owner 04/13/2020 177,775
BASKETT FOREST 10% Owner 04/13/2020 177,775
New Enterprise Associates 14, L.P. 10% Owner 08/28/2019 3,524
New Enterprise Associates 14, L.P. 10% Owner 08/28/2019 3,530
Hack Andrew A. F. Director 04/07/2020 20,649,463
MOTT DAVID M Director 04/07/2020 3,010,768
MOTT DAVID M Director 03/05/2019 15,000,000
New Enterprise Associates 14, L.P. 10% Owner 03/05/2019 15,000,000
Lowinger Timothy B Chief Scientific Officer 09/24/2018 4,900
Lowinger Timothy B Chief Scientific Officer 09/24/2018 40,705
Lowinger Timothy B Chief Scientific Officer 08/27/2018 26,005
Lowinger Timothy B Chief Scientific Officer 08/27/2018 46,025
Lowinger Timothy B Chief Scientific Officer 07/23/2018 38,710
Lowinger Timothy B Chief Scientific Officer 07/03/2018 14,000
Lowinger Timothy B Chief Scientific Officer 02/21/2018 41,259
Foster Wayne Vice President of Finance 01/30/2018 44,582
Protopapas Anna President and CEO 12/20/2017 15,938
Viswanathan Ravi 10% Owner 07/03/2017 15,000,000
Sonsini Peter W. 10% Owner 07/03/2017 15,000,000
SANDELL SCOTT D 10% Owner 07/03/2017 15,000,000
MOTT DAVID M Director 07/03/2017 15,000,000
KERINS PATRICK J 10% Owner 07/03/2017 15,000,000
Florence Anthony A. Jr. 10% Owner 07/03/2017 15,000,000
BASKETT FOREST 10% Owner 07/03/2017 15,000,000
BARRIS PETER J 10% Owner 07/03/2017 15,000,000
BARRETT M JAMES 10% Owner 07/03/2017 15,000,000
New Enterprise Associates 14, L.P. 10% Owner 07/03/2017 15,000,000
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CHANGE IN SHARES OUTSTANDING
STOCK BUYBACKS
Period of Report
Previous Period
% Change in Shares
10-K/10-Q Filings
Quarter
09/30/2021
06/30/2021
1.19%
1Q
09/30/2021
03/31/2021
1.65%
2Q
09/30/2021
12/31/2020
14.06%
3Q
09/30/2021
09/30/2020
18.69%
4Q
09/30/2021
06/30/2020
28.99%
5Q
09/30/2021
03/31/2020
46.14%
6Q
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Period of Report: 09/30/2021

10-K/10-Q Filings: View

Previous Period
% Change in Shares
Quarter
06/30/2021
1.19%
1Q
03/31/2021
1.65%
2Q
12/31/2020
14.06%
3Q
09/30/2020
18.69%
4Q
06/30/2020
28.99%
5Q
03/31/2020
46.14%
6Q
Load More