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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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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
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#
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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
    
 
BALA MOHAN
VP
AS
$2,147
3,253
---
1/14/25
---
$0.66
60,228
-5.1
D
R,10b
1/15/25 - 9:16:15 pm
2
    
 
PROTOPAPAS ANNA
DIR
JB
---
31,250
---
1/13/25
---
---
156,403
25.0
D
R,10b
1/15/25 - 9:20:28 pm
3
    
 
MANDELIA ASHISH
VP,CAO
JB
---
2,646
---
1/13/25
---
---
50,403
5.5
D
R,10b
1/15/25 - 9:19:25 pm
4
    
 
LOWINGER TIMOTHY B
VP,CTO
JB
---
9,375
---
1/13/25
---
---
246,415
4.0
D
R,10b
1/15/25 - 9:18:49 pm
5
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
JB
---
10,000
---
1/13/25
---
---
108,824
10.1
D
R,10b
1/15/25 - 9:17:42 pm
6
    
 
CARVAJAL ALEJANDRA
VP,LO
JB
---
8,958
---
1/13/25
---
---
72,674
14.1
D
R,10b
1/15/25 - 9:17:06 pm
7
    
 
BALA MOHAN
VP
JB
---
8,750
---
1/13/25
---
---
63,481
16.0
D
R,10b
1/15/25 - 9:16:15 pm
8
    
 
NEXTECH CROSSOVER I SCSP
BO
3
---
---
---
12/20/24
---
---
12,067,246
---
D
---
12/30/24 - 4:12:17 pm
9
    
 
ECOR1 CAPITAL LLC
BO
JS
---
8,036,688
---
12/19/24
---
---
11,328,000
-41.5
I
---
12/23/24 - 7:42:08 pm
10
    
 
BALA MOHAN
VP
AS
$3,580
1,884
---
10/28/24
---
$1.90
54,731
-3.3
D
R,10b
10/29/24 - 4:43:42 pm
11
    
 
BALA MOHAN
VP
JB
---
6,250
---
10/25/24
---
---
56,615
12.4
D
R,10b
10/29/24 - 4:43:42 pm
12
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
AS
$27,150
13,687
10/2/24
10/3/24
---
$1.96
94,824
-12.6
D
R,10b
10/7/24 - 5:48:47 pm
13
1y
8
38%
1,730%
2
CARVAJAL ALEJANDRA
VP,LO
AS
$27,150
13,687
10/2/24
10/3/24
---
$1.96
63,716
-17.7
D
R,10b
10/7/24 - 5:48:21 pm
14
    
 
BALA MOHAN
VP
AS
$27,150
13,687
10/2/24
10/3/24
---
$1.96
50,365
-21.4
D
R,10b
10/7/24 - 5:47:51 pm
15
    
 
MANDELIA ASHISH
VP,CAO
AS
$16,298
8,216
10/2/24
10/3/24
---
$1.96
47,757
-14.7
D
R,10b
10/7/24 - 5:47:18 pm
16
1y
21
76%
613%
1
LOWINGER TIMOTHY B
VP,CTO
AS
$27,150
13,687
10/2/24
10/3/24
---
$1.96
235,642
-5.5
D
R,10b
10/7/24 - 5:46:19 pm
17
    
 
DESCHUYTNER BRIAN
VP,COO,CFO
JB
---
50,000
---
10/1/24
---
---
108,511
85.5
D
R,10b
10/7/24 - 5:48:47 pm
18
    
 
CARVAJAL ALEJANDRA
VP,LO
JB
---
50,000
---
10/1/24
---
---
77,403
182.5
D
R,10b
10/7/24 - 5:48:21 pm
19
    
 
BALA MOHAN
VP
JB
---
50,000
---
10/1/24
---
---
64,052
355.8
D
R,10b
10/7/24 - 5:47:51 pm
20
    
 
MANDELIA ASHISH
VP,CAO
JB
---
30,000
---
10/1/24
---
---
55,973
115.5
D
R,10b
10/7/24 - 5:47:18 pm
21
    
 
LOWINGER TIMOTHY B
VP,CTO
JB
---
50,000
---
10/1/24
---
---
249,329
25.1
D
R,10b
10/7/24 - 5:46:19 pm
22
1y
2
0%
2,420%
3
HUBER MARTIN H JR
PR,CEO,DIR
AS
$88,744
50,423
---
9/12/24
---
$1.76
116,327
-30.2
D
R,10b
9/13/24 - 5:08:39 pm
23
    
 
HUBER MARTIN H JR
PR,CEO,DIR
JB
---
166,750
---
9/11/24
---
---
166,750
New
D
R,10b
9/13/24 - 5:08:39 pm
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