Home About FAQ Contact Key Subscribe
 
Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
Reduced Version of Subscription Insider Search
Check all filing types
Uncheck all filing types
Remove The Noise What is the 'Remove The Noise' function?
Insider Portfolio Alerts
Free real time insider alerts
Top Trade Alerts
Free insider trades intra-day
Special Screens Report
Free insider special screens report
Our Input Date Search is an excellent tool to examine the latest insider trades for new long and short investment ideas, but it is only available to paid subscribers.

Click Here to Subscribe

close window
Feature available to paying subscribers only. Subscriber output is also not separated on different pages, so that print outs and Excel downloads contain all of a search's information.

Click Here to Subscribe

close window

Detailed Insider History for:
MERSANA THERAPEUTICS INC: MRSN
Price: 1/16/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$29.08 $30.39 $5.21 $145 5 139 0.0% 1.2% 67.57% 1.47%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
click column headers to sort
#
View Form
Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
HACK ANDREW A F
DIR
JS
---
578
---
1/6/26
---
---
---
All
D
---
1/6/26 - 6:32:59 pm
2
    
 
HACK ANDREW A F
DIR
JS
---
346,545
---
1/6/26
---
---
---
All
I
---
1/6/26 - 6:32:59 pm
3
    
 
HEGE KRISTEN
DIR
JS
---
578
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:55:45 pm
4
    
 
DIAZ ALLENE M
DIR
JS
---
578
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:54:24 pm
5
    
 
DERE WILLARD H
DIR
JS
---
1,567
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:52:54 pm
6
    
 
CARVAJAL ALEJANDRA
VP,LO
JS
---
3,131
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:51:06 pm
7
    
 
BALA MOHAN
VP
JS
---
2,927
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:49:49 pm
8
    
 
ALLEVA LAWRENCE M
DIR
JS
---
84
---
1/6/26
---
---
---
All
I
---
1/6/26 - 4:48:18 pm
9
    
 
ALLEVA LAWRENCE M
DIR
JS
---
578
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:48:18 pm
10
    
 
HUBER MARTIN H JR
PR,CEO,DIR
JS
---
9,573
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:47:18 pm
11
    
 
MANDELIA ASHISH
VP,CAO
JS
---
2,300
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:44:12 pm
12
    
 
PROTOPAPAS ANNA
DIR
JS
---
12,499
---
1/6/26
---
---
---
All
I
---
1/6/26 - 4:42:17 pm
13
    
 
PROTOPAPAS ANNA
DIR
JS
---
6,721
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:42:17 pm
14
    
 
LOWINGER TIMOTHY B
VP,CTO
JS
---
10,466
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:40:51 pm
15
    
 
MOTT DAVID M
DIR
JS
---
23,546
---
1/6/26
---
---
---
All
D
---
1/6/26 - 4:39:24 pm
16
    
 
MOTT DAVID M
DIR
JS
---
383
---
1/6/26
---
---
---
All
I
---
1/6/26 - 4:39:24 pm
17
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
JS
---
5,015
---
1/6/26
---
---
---
All
D
R
1/6/26 - 4:38:27 pm
18
    
 
BALA MOHAN
VP
AS
$762
77
---
10/27/25
---
$9.90
2,922
-2.6
D
R,10b
10/28/25 - 4:10:09 pm
19
    
 
BALA MOHAN
VP
JB
---
250
---
10/25/25
---
---
2,999
9.1
D
R,10b
10/28/25 - 4:10:09 pm
20
1y
2
0%
2,420%
3
HUBER MARTIN H JR
PR,CEO,DIR
AS
$14,708
2,012
---
9/12/25
---
$7.31
9,572
-17.4
D
R,10b
9/15/25 - 4:26:13 pm
21
    
 
HUBER MARTIN H JR
PR,CEO,DIR
JB
---
6,670
---
9/11/25
---
---
11,584
135.7
D
R,10b
9/15/25 - 4:26:13 pm
22
    
 
MANDELIA ASHISH
VP,CAO
AS
$2,061
3,554
---
1/16/25
---
$0.58
57,519
-5.8
D
R,10b
1/17/25 - 7:27:39 pm
23
1y
7
57%
1,919%
3
PROTOPAPAS ANNA
DIR
AS
$5,009
8,637
---
1/16/25
---
$0.58
168,041
-4.9
D
R,10b
1/17/25 - 7:26:45 pm
24
1y
21
76%
613%
1
LOWINGER TIMOTHY B
VP,CTO
AS
$4,668
8,048
---
1/16/25
---
$0.58
257,673
-3.0
D
R,10b
1/17/25 - 7:25:05 pm
25
1y
2
0%
2,420%
3
HUBER MARTIN H JR
PR,CEO,DIR
AS
$2,618
4,514
---
1/16/25
---
$0.58
122,875
-3.5
D
R,10b
1/17/25 - 7:21:15 pm
26
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
AS
$4,913
8,470
---
1/16/25
---
$0.58
121,393
-6.5
D
R,10b
1/17/25 - 7:20:02 pm
27
1y
8
38%
1,730%
2
CARVAJAL ALEJANDRA
VP,LO
AS
$2,956
5,096
---
1/16/25
---
$0.58
78,296
-6.1
D
R,10b
1/17/25 - 7:18:50 pm
28
    
 
BALA MOHAN
VP
AS
$3,445
5,939
---
1/16/25
---
$0.58
68,872
-7.9
D
R,10b
1/17/25 - 7:18:07 pm
29
    
 
MANDELIA ASHISH
VP,CAO
JB
---
8,685
---
1/15/25
---
---
61,073
16.6
D
R,10b
1/17/25 - 7:27:39 pm
30
    
 
PROTOPAPAS ANNA
DIR
JB
---
21,250
---
1/15/25
---
---
176,678
13.7
D
R,10b
1/17/25 - 7:26:45 pm
31
    
 
LOWINGER TIMOTHY B
VP,CTO
JB
---
19,791
---
1/15/25
---
---
265,721
8.0
D
R,10b
1/17/25 - 7:25:05 pm
32
    
 
HUBER MARTIN H JR
PR,CEO,DIR
JB
---
11,062
---
1/15/25
---
---
127,389
9.5
D
R,10b
1/17/25 - 7:21:15 pm
33
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
JB
---
20,833
---
1/15/25
---
---
129,863
19.1
D
R,10b
1/17/25 - 7:20:02 pm
34
    
 
CARVAJAL ALEJANDRA
VP,LO
JB
---
12,500
---
1/15/25
---
---
83,392
17.6
D
R,10b
1/17/25 - 7:18:50 pm
35
    
 
BALA MOHAN
VP
JB
---
14,583
---
1/15/25
---
---
74,811
24.2
D
R,10b
1/17/25 - 7:18:07 pm
36
1y
7
57%
1,919%
3
PROTOPAPAS ANNA
DIR
AS
$3,900
6,191
---
1/15/25
---
$0.63
155,428
-3.8
D
R,10b
1/16/25 - 5:25:34 pm
37
    
 
MANDELIA ASHISH
VP,CAO
AS
$1,128
1,791
---
1/15/25
---
$0.63
52,388
-3.3
D
R,10b
1/16/25 - 5:25:10 pm
38
1y
21
76%
613%
1
LOWINGER TIMOTHY B
VP,CTO
AS
$1,130
1,794
---
1/15/25
---
$0.63
245,930
-0.7
D
R,10b
1/16/25 - 5:24:40 pm
39
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
AS
$1,469
2,331
---
1/15/25
---
$0.63
109,030
-2.1
D
R,10b
1/16/25 - 5:23:58 pm
40
1y
8
38%
1,730%
2
CARVAJAL ALEJANDRA
VP,LO
AS
$600
952
---
1/15/25
---
$0.63
70,892
-1.3
D
R,10b
1/16/25 - 5:23:27 pm
41
    
 
PROTOPAPAS ANNA
DIR
JB
---
16,750
---
1/14/25
---
---
161,619
11.6
D
R,10b
1/16/25 - 5:25:34 pm
42
    
 
MANDELIA ASHISH
VP,CAO
JB
---
4,783
---
1/14/25
---
---
54,179
9.7
D
R,10b
1/16/25 - 5:25:10 pm
43
    
 
LOWINGER TIMOTHY B
VP,CTO
JB
---
4,792
---
1/14/25
---
---
247,724
2.0
D
R,10b
1/16/25 - 5:24:40 pm
44
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
JB
---
6,250
---
1/14/25
---
---
111,361
5.9
D
R,10b
1/16/25 - 5:23:58 pm
45
    
 
CARVAJAL ALEJANDRA
VP,LO
JB
---
2,500
---
1/14/25
---
---
71,844
3.6
D
R,10b
1/16/25 - 5:23:27 pm
46
1y
7
57%
1,919%
3
PROTOPAPAS ANNA
DIR
AS
$7,612
11,534
---
1/14/25
---
$0.66
144,869
-7.4
D
R,10b
1/15/25 - 9:20:28 pm
47
    
 
MANDELIA ASHISH
VP,CAO
AS
$665
1,007
---
1/14/25
---
$0.66
49,396
-2.0
D
R,10b
1/15/25 - 9:19:25 pm
48
1y
21
76%
613%
1
LOWINGER TIMOTHY B
VP,CTO
AS
$2,299
3,483
---
1/14/25
---
$0.66
242,932
-1.4
D
R,10b
1/15/25 - 9:18:49 pm
49
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
AS
$2,451
3,713
---
1/14/25
---
$0.66
105,111
-3.4
D
R,10b
1/15/25 - 9:17:42 pm
50
1y
8
38%
1,730%
2
CARVAJAL ALEJANDRA
VP,LO
AS
$2,198
3,330
---
1/14/25
---
$0.66
69,344
-4.6
D
R,10b
1/15/25 - 9:17:06 pm
Subscribe Data Module Screens Alerts Newsletter Daily Ratings Reports Free Stuff
Home About FAQ Contact Disclaimer & Terms Of Use Privacy Transaction Codes
© 2026 InsiderInsights.com