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Mersana Therapeutics (MRSN) SEC Filings & 10K Form

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Recent Mersana Therapeutics SEC Filings

DateFilerForm TypeView
05/15/2025
4:48 PM
Mersana Therapeutics (Subject)
Venrock Healthcare Capital Partners III, L.P. (Filed by)
Form SCHEDULE 13G/A
05/15/2025
1:16 PM
EcoR1 Capital, LLC (Filed by)
Mersana Therapeutics (Subject)
Form SCHEDULE 13G/A
05/15/2025
6:09 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/06/2025
6:11 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/30/2025
10:23 AM
Mersana Therapeutics (Subject)
VANGUARD GROUP INC (Filed by)
Form SCHEDULE 13G/A
04/29/2025
5:00 AM
Mersana Therapeutics (Filer)
Form DEF 14A
04/29/2025
5:05 AM
Mersana Therapeutics (Filer)
Form DEFA14A
04/29/2025
5:11 AM
Mersana Therapeutics (Filer)
Form ARS
03/03/2025
7:50 AM
Mersana Therapeutics (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/03/2025
6:27 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/14/2025
5:15 PM
Mersana Therapeutics (Subject)
Venrock Healthcare Capital Partners III, L.P. (Filed by)
Form SCHEDULE 13G/A
02/05/2025
12:23 PM
BlackRock, Inc. (Filed by)
Mersana Therapeutics (Subject)
Form SCHEDULE 13G/A
02/05/2025
7:08 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/17/2025
6:20 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:21 PM
Huber Martin H. Jr. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:25 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:26 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:27 PM
Mandelia Ashish (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:02 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:04 PM
Mersana Therapeutics (Subject)
Protopapas Anna (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:04 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:05 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:05 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:05 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/17/2025
6:18 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/17/2025
6:18 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
4:19 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/16/2025
4:20 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/16/2025
4:21 PM
Mersana Therapeutics (Subject)
Protopapas Anna (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/16/2025
4:23 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
4:23 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
4:24 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
4:25 PM
Mandelia Ashish (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/16/2025
4:25 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:16 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:17 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:17 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:18 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:19 PM
Mandelia Ashish (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:20 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
8:15 PM
Mersana Therapeutics (Subject)
Protopapas Anna (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
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01/14/2025
3:10 PM
Mersana Therapeutics (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
01/10/2025
7:32 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/30/2024
3:12 PM
Charoub Ian (Reporting)
Constantinides Costas (Reporting)
Mersana Therapeutics (Issuer)
Nextech Crossover I GP S.a r.l. (Reporting)
NEXTECH CROSSOVER I SCSP (Reporting)
Sgobbo Rocco (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
12/26/2024
3:29 PM
Mersana Therapeutics (Subject)
Nextech Crossover I GP S.a r.l. (Filed by)
Form SCHEDULE 13G/A
12/23/2024
6:50 PM
EcoR1 Capital, LLC (Filed by)
Mersana Therapeutics (Subject)
Form SCHEDULE 13G/A
12/23/2024
6:42 PM
EcoR1 Capital, LLC (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
12/19/2024
4:01 PM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/14/2024
4:45 PM
Mersana Therapeutics (Subject)
Nextech Crossover I GP S.a r.l. (Filed by)
Form SC 13G/A
11/14/2024
5:01 AM
BALYASNY ASSET MANAGEMENT L.P. (Filed by)
Mersana Therapeutics (Subject)
Form SC 13G/A
11/13/2024
7:50 AM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
11/13/2024
6:27 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/29/2024
3:43 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/29/2024
3:26 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/15/2024
5:55 AM
Mersana Therapeutics (Subject)
SILVERARC CAPITAL MANAGEMENT, LLC (Filed by)
Form SC 13G/A
10/07/2024
4:46 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/07/2024
4:47 PM
Mandelia Ashish (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/07/2024
4:47 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/07/2024
4:48 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/07/2024
4:48 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/07/2024
4:18 PM
Lowinger Timothy B (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/07/2024
4:18 PM
DeSchuytner Brian (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/07/2024
4:19 PM
Carvajal Alejandra (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/07/2024
4:20 PM
Bala Mohan (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/03/2024
7:08 PM
Alleva Lawrence M (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
09/13/2024
4:06 PM
Huber Martin H. Jr. (Reporting)
Mersana Therapeutics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/13/2024
4:08 PM
Huber Martin H. Jr. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/13/2024
7:59 AM
Mersana Therapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/13/2024
6:18 AM
Mersana Therapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/12/2024
4:31 PM
Hack Andrew A. F. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:49 PM
Alleva Lawrence M (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:51 PM
Dere Willard H (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:51 PM
Diaz Allene M. (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:52 PM
Hege Kristen (Reporting)
Mersana Therapeutics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:53 PM
Mersana Therapeutics (Issuer)
MOTT DAVID M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2024
3:54 PM
Mersana Therapeutics (Issuer)
Protopapas Anna (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:MRSN) was last updated on 5/23/2025 by MarketBeat.com Staff
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