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Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
QUANTERIX CORP: QTRX
Price: 9/12/25 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
$4.81 $15.86 $4.05 $224 47 737 0.0% 9.6% 73.43% 6.46%
Exch Sector Industry Sub-Industry
NasdaqGM Manufacturing Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks Laboratory Analytical Instruments
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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
    
 
SRIRAM VANDANA
CFO
JB
---
24,675
---
2/2/24
---
---
37,299
195.5
D
R
2/6/24 - 4:07:06 pm
2
    
 
TOLOUE MASOUD
PR,CEO,DIR
JB
---
67,532
---
2/2/24
---
---
353,799
23.6
D
R
2/6/24 - 4:07:06 pm
3
    
 
TOLOUE MASOUD
PR,CEO,DIR
JS
$16,855
763
---
1/31/24
---
$22.09
286,267
-0.3
D
R
2/1/24 - 4:52:25 pm
4
    
 
WALT DAVID R
DIR
JB
---
2,947
---
1/2/24
---
---
1,442,342
0.2
D
R
1/4/24 - 4:09:44 pm
5
1y
5
100%
-63%
3
OLSON LAURIE J
DIR
OS
$26,910
1,000
---
1/2/24
---
$26.91
16,738
-5.6
D
R,10b
1/4/24 - 4:09:40 pm
6
    
 
OLSON LAURIE J
DIR
JB
---
2,947
---
1/2/24
---
---
16,738
21.4
D
R,10b
1/4/24 - 4:09:40 pm
7
    
 
OLSON LAURIE J
DIR
OE
$12,860
1,000
---
1/2/24
---
$12.86
17,738
6.0
D
R,10b
1/4/24 - 4:09:40 pm
8
    
 
MADAUS MARTIN D
DIR
JB
---
2,947
---
1/2/24
---
---
29,473
11.1
D
R
1/4/24 - 4:09:32 pm
9
    
 
FLYNN KAREN
DIR
JB
---
2,947
---
1/2/24
---
---
26,405
12.6
D
R
1/4/24 - 4:09:29 pm
10
    
 
HLAVINKA SARAH E
DIR
JB
$14,987
3,499
---
1/2/24
---
$27.15
42,989
8.9
D
R
1/4/24 - 4:09:25 pm
11
    
 
BLASER BRIAN J
DIR
JB
---
2,947
---
1/2/24
---
---
19,049
18.3
D
R
1/4/24 - 4:09:19 pm
12
    
 
MEISTER PAUL M
DIR
JB
$14,987
3,499
---
1/2/24
---
$27.15
292,717
1.2
D
R
1/4/24 - 4:09:09 pm
13
    
 
DONNELLY WILLIAM P
DIR
JB
$12,489
3,407
---
1/2/24
---
$27.15
32,073
11.9
D
R
1/4/24 - 4:08:58 pm
14
    
 
TOLOUE MASOUD
PR,CEO,DIR
JS
$23,485
859
---
12/31/23
---
$27.34
287,030
-0.3
D
R
1/3/24 - 4:02:30 pm
15
    
 
TOLOUE MASOUD
PR,CEO,DIR
JS
$15,293
638
---
11/30/23
---
$23.97
287,889
-0.2
D
R
12/1/23 - 4:05:33 pm
16
1y
5
100%
-63%
3
OLSON LAURIE J
DIR
AS
$32,835
1,500
---
11/14/23
---
$21.89
13,791
-9.8
D
R,10b
11/14/23 - 4:09:11 pm
17
    
 
TOLOUE MASOUD
PR,CEO,DIR
JS
$13,857
638
---
10/31/23
---
$21.72
288,527
-0.2
D
R
11/1/23 - 9:06:19 am
18
    
 
HLAVINKA SARAH E
DIR
JB
$14,984
561
---
10/2/23
---
$26.71
39,490
1.4
D
R
10/4/23 - 4:02:14 pm
19
    
 
MEISTER PAUL M
DIR
JB
$14,984
561
---
10/2/23
---
$26.71
289,218
0.2
D
R
10/4/23 - 4:02:02 pm
20
    
 
DONNELLY WILLIAM P
DIR
JB
$6,090
228
---
10/2/23
---
$26.71
28,666
0.8
D
R
10/4/23 - 4:01:49 pm
21
    
 
DOYLE MICHAEL A
CFO,TR
JS
$3,175
117
---
9/30/23
---
$27.14
88,332
-0.1
D
R
10/2/23 - 5:42:47 pm
22
    
 
TOLOUE MASOUD
PR,CEO,DIR
JS
$17,315
638
---
9/30/23
---
$27.14
289,165
-0.2
D
R
10/2/23 - 5:42:26 pm
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