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Mersana Therapeutics SEC Filings & 10K Form (NASDAQ:MRSN)

$2.74
+0.10 (+3.79 %)
(As of 11/15/2019 04:00 PM ET)
Today's Range
$2.63
Now: $2.74
$3.05
50-Day Range
$1.42
MA: $1.77
$2.76
52-Week Range
$1.32
Now: $2.74
$7.65
Volume612,500 shs
Average Volume257,113 shs
Market Capitalization$131.19 million
P/E RatioN/A
Dividend YieldN/A
Beta1.51

SEC Filings

Mersana Therapeutics (NASDAQ:MRSN) SEC Filings

DateFilerForm TypeView
11/06/2019
8:01 AM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
11/06/2019
5:11 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/09/2019
4:30 PM
BIOTECHNOLOGY VALUE FUND L P (Filed by)
Mersana Therapeutics (Subject)
Form SC 13G/A
08/21/2019
5:01 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/08/2019
8:01 AM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/08/2019
5:16 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/26/2019
3:01 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/19/2019
3:03 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/19/2019
3:02 PM
Kaufman Michael J. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/19/2019
3:02 PM
Jack Eva M. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/19/2019
3:02 PM
Huebner Dirk (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/19/2019
3:01 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/12/2019
3:07 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/12/2019
3:06 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
06/12/2019
3:17 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/11/2019
3:49 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2019
3:36 PM
Alleva Lawrence M (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2019
3:35 PM
Hege Kristen (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2019
3:14 PM
Dere Willard H (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2019
3:14 PM
Hack Andrew A. F. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/07/2019
3:02 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/05/2019
3:02 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/09/2019
3:06 PM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
05/09/2019
5:10 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/23/2019
3:12 PM
Mersana Therapeutics (Filer)
Form DEFA14A
04/23/2019
3:05 PM
Mersana Therapeutics (Filer)
Form DEF 14A
04/08/2019
3:09 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/11/2019
4:21 PM
BIOTECHNOLOGY VALUE FUND L P (Filed by)
Mersana Therapeutics (Subject)
Form SC 13G
03/11/2019
3:18 PM
Mersana Therapeutics (Subject)
Sarissa Capital Management LP (Filed by)
Form SC 13G
03/08/2019
3:23 PM
Mersana Therapeutics (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
03/08/2019
3:09 PM
Mersana Therapeutics (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/08/2019
5:05 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/06/2019
3:39 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2019
3:38 PM
BARRIS PETER J (Reporting)
BASKETT FOREST (Reporting)
Florence Anthony A. Jr. (Reporting)
KERINS PATRICK J (Reporting)
Mersana Therapeutics (Issuer)
NEA 14 GP, LTD (Reporting)
NEA Partners 14, L.P. (Reporting)
New Enterprise Associates 14, L.P. (Reporting)
SANDELL SCOTT D (Reporting)
Sonsini Peter W. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/04/2019
4:27 PM
Mersana Therapeutics (Filer)
Form 424B5
03/04/2019
3:54 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/28/2019
3:55 PM
Mersana Therapeutics (Filer)
Form 424B5
02/28/2019
3:06 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/14/2019
10:07 AM
Mersana Therapeutics (Subject)
Rock Springs Capital Management LP (Filed by)
Form SC 13G/A
02/14/2019
6:53 AM
ArrowMark Colorado Holdings LLC (Filed by)
Mersana Therapeutics (Subject)
Form SC 13G
01/25/2019
3:07 PM
Jack Eva M. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/25/2019
3:07 PM
Mersana Therapeutics (Issuer)
Spellman David A (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/25/2019
3:06 PM
Kaufman Michael J. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/25/2019
3:06 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/25/2019
3:05 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/25/2019
3:05 PM
Foster Wayne (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/10/2019
8:37 AM
Mersana Therapeutics (Subject)
WELLINGTON MANAGEMENT GROUP LLP (Filed by)
Form SC 13G/A
01/04/2019
3:34 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/04/2019
6:05 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/04/2019
6:05 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/03/2018
3:16 PM
Huebner Dirk (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
12/03/2018
3:14 PM
Huebner Dirk (Reporting)
Mersana Therapeutics (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
11/13/2018
4:14 PM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
11/13/2018
6:10 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/25/2018
4:07 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
09/21/2018
3:50 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/21/2018
3:01 PM
Alleva Lawrence M (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
09/21/2018
3:01 PM
Hege Kristen (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
09/21/2018
3:00 PM
Hack Andrew A. F. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
09/17/2018
11:15 PM
Mersana Therapeutics (Filer)
Form EFFECT
09/17/2018
7:00 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/14/2018
7:40 AM
Mersana Therapeutics (Filer)
Form S-3/A
08/29/2018
3:24 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/14/2018
3:24 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/25/2018
3:04 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2018
4:09 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/12/2018
3:23 PM
Mersana Therapeutics (Filer)
Form S-3/A
07/05/2018
5:59 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/02/2018
4:27 PM
Mersana Therapeutics (Filer)
Form S-3
Registration statement under Securities Act of 1933  
06/11/2018
3:55 PM
Mersana Therapeutics (Filer)
Form DEFA14A
04/30/2018
3:04 PM
Mersana Therapeutics (Filer)
Form DEF 14A
04/10/2018
2:54 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/28/2018
3:38 PM
Mersana Therapeutics (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/28/2018
6:37 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/21/2018
4:19 PM
Dere Willard H (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/21/2018
4:17 PM
Dere Willard H (Reporting)
Mersana Therapeutics (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
03/19/2018
7:09 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/14/2018
3:49 PM
Mersana Therapeutics (Issuer)
Spellman David A (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/14/2018
3:49 PM
Mersana Therapeutics (Issuer)
Spellman David A (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
03/12/2018
7:08 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/02/2018
6:30 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/23/2018
3:01 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2018
11:03 AM
Mersana Therapeutics (Subject)
Rock Springs Capital Management LP (Filed by)
Form SC 13G/A
02/13/2018
4:16 PM
Mersana Therapeutics (Subject)
PFIZER INC (Filed by)
Form SC 13G/A
02/09/2018
1:30 PM
Mersana Therapeutics (Subject)
Rho Ventures V, L.P. (Filed by)
Form SC 13G
02/06/2018
3:28 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/06/2018
3:27 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/06/2018
3:27 PM
Jack Eva M. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/06/2018
3:26 PM
Foster Wayne (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/06/2018
3:25 PM
Kaufman Michael J. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/06/2018
3:24 PM
Bergstrom Donald A (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/02/2018
3:15 PM
Mersana Therapeutics (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
02/01/2018
3:01 PM
Foster Wayne (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/04/2018
3:31 PM
Mersana Therapeutics (Issuer)
Nayeem Sara M. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/04/2018
3:30 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
12/21/2017
3:06 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
This page was last updated on 11/16/2019 by MarketBeat.com Staff

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