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Detailed Insider History for:
AVANTOR INC: AVTR
Price: 5/8/26 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
$8.31 $15.93 $7.27 $5,674 683 10,410 0.0% 7.5% 107.42% 1.44%
Exch Sector Industry Sub-Industry
NYSE Manufacturing Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks Laboratory Analytical Instruments
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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
1m
1
0%
-13%
8
LUCIER GREGORY T
DIR
B
$83,200
10,000
---
5/8/26
---
$8.32
60,000
20.0
I
R
5/11/26 - 4:39:13 pm
2
    
 
MURTHY MALA
DIR
JB
---
25,270
---
5/7/26
---
---
69,479
57.2
D
R
5/11/26 - 4:39:21 pm
3
    
 
LUCIER GREGORY T
DIR
JB
---
25,270
---
5/7/26
---
---
34,006
289.3
D
R
5/11/26 - 4:39:13 pm
4
    
 
DINGEMANS SIMON
DIR
JB
---
25,270
---
5/7/26
---
---
31,495
405.9
D
R
5/11/26 - 4:39:05 pm
5
    
 
MAKIN LOUISE
DIR
JB
---
25,270
---
5/7/26
---
---
47,140
115.5
D
R
5/11/26 - 4:38:57 pm
6
    
 
MASSARO JOSEPH R
DIR
JB
---
25,270
---
5/7/26
---
---
77,408
48.5
D
R
5/11/26 - 4:38:49 pm
7
    
 
MEHRA SANJEEV K
DIR
JB
---
25,270
---
5/7/26
---
---
33,376
311.7
D
R
5/11/26 - 4:38:42 pm
8
    
 
SEVERINO MICHAEL
DIR
JB
---
25,270
---
5/7/26
---
---
85,821
41.7
D
R
5/11/26 - 4:38:33 pm
9
    
 
SUMME GREGORY L
DIR
JB
---
25,270
---
5/7/26
---
---
83,381
43.5
D
R
5/11/26 - 4:38:25 pm
10
    
 
DINGEMANS SIMON
DIR
B
$203,500
25,000
---
5/1/26
---
$8.14
25,000
New
I
---
5/5/26 - 7:44:08 pm
11
    
 
BRELLIER LUDOVIC
VP
JB
---
146,566
---
5/1/26
---
---
146,566
New
D
R
5/5/26 - 7:40:26 pm
12
    
 
BRELLIER LUDOVIC
VP
3
---
---
---
5/1/26
---
---
---
---
---
---
5/5/26 - 7:37:26 pm
13
    
 
ECK STEVEN W
VP,CAO
JB
---
31,645
---
4/3/26
---
---
130,978
31.9
D
R
4/6/26 - 5:09:30 pm
14
3m
1
0%
-23%
6
MEHRA SANJEEV K
DIR
B
$1,001,250
125,000
---
3/10/26
---
$8.01
475,000
35.7
I
---
3/11/26 - 5:10:29 pm
15
    
 
HANKAMER BRITTANY
VP,HR
JS
$15,041
1,683
2/23/26
2/24/26
$8.89
$9.11
249,045
-0.7
D
---
2/25/26 - 5:28:00 pm
16
    
 
ECK STEVEN W
VP,CAO
JS
$22,049
2,469
2/23/26
2/24/26
$8.89
$9.11
99,333
-2.4
D
---
2/25/26 - 5:27:42 pm
17
    
 
SOKENU CLAUDIUS
VP,LO,CO
JS
$21,123
2,376
---
2/23/26
---
$8.89
252,429
-0.9
D
---
2/25/26 - 5:28:06 pm
18
    
 
JONES R BRENT
VP,CFO
JS
$24,936
2,805
---
2/23/26
---
$8.89
419,782
-0.7
D
---
2/25/26 - 5:27:54 pm
19
    
 
GOURDIER BENOIT
VP
JS
$26,928
3,029
---
2/23/26
---
$8.89
362,859
-0.8
D
---
2/25/26 - 5:27:48 pm
20
    
 
HANKAMER BRITTANY
VP,HR
JS
$13,121
1,453
---
2/20/26
---
$9.03
250,728
-0.6
D
R
2/23/26 - 8:53:58 pm
21
    
 
ECK STEVEN W
VP,CAO
JS
$19,189
2,125
---
2/20/26
---
$9.03
101,802
-2.0
D
R
2/23/26 - 8:53:41 pm
22
    
 
WALKER COREY
PR
JS
$44,816
4,963
---
2/20/26
---
$9.03
387,545
-1.3
D
R
2/23/26 - 8:53:29 pm
23
    
 
SOKENU CLAUDIUS
VP,LO,CO
JS
$26,359
2,919
---
2/20/26
---
$9.03
254,805
-1.1
D
R
2/23/26 - 8:53:24 pm
24
    
 
GOURDIER BENOIT
VP
JS
$37,565
4,160
---
2/20/26
---
$9.03
365,888
-1.1
D
R
2/23/26 - 8:53:18 pm
25
    
 
JONES R BRENT
VP,CFO
JS
$85,839
9,506
---
2/20/26
---
$9.03
422,587
-2.2
D
R
2/23/26 - 8:53:12 pm
26
    
 
HANKAMER BRITTANY
VP,HR
JB
---
80,618
---
2/19/26
---
---
252,181
47.0
D
R
2/23/26 - 8:53:58 pm
27
1m
1
0%
-13%
8
LUCIER GREGORY T
DIR
B
$458,000
50,000
---
2/19/26
---
$9.16
50,000
New
I
---
2/23/26 - 8:53:53 pm
28
    
 
BLENN MARY
VP,COO
JB
---
235,993
---
2/19/26
---
---
253,384
1,357.0
D
R
2/23/26 - 8:53:47 pm
29
    
 
ECK STEVEN W
VP,CAO
JB
---
48,859
---
2/19/26
---
---
103,927
88.7
D
R
2/23/26 - 8:53:41 pm
30
    
 
LIGNER EMMANUEL
PR,CEO,DIR
JB
---
483,713
---
2/19/26
---
---
767,137
170.7
D
R
2/23/26 - 8:53:35 pm
31
    
 
WALKER COREY
PR
JB
---
161,237
---
2/19/26
---
---
392,508
69.7
D
R
2/23/26 - 8:53:29 pm
32
    
 
SOKENU CLAUDIUS
VP,LO,CO
JB
---
80,618
---
2/19/26
---
---
257,724
45.5
D
R
2/23/26 - 8:53:24 pm
33
    
 
GOURDIER BENOIT
VP
JB
---
134,364
---
2/19/26
---
---
370,048
57.0
D
R
2/23/26 - 8:53:18 pm
34
    
 
JONES R BRENT
VP,CFO
JB
---
161,237
---
2/19/26
---
---
432,093
59.5
D
R
2/23/26 - 8:53:12 pm
35
1y
2
0%
-36%
6
SUMME GREGORY L
DIR
B
$940,000
100,000
---
2/12/26
---
$9.40
400,000
33.3
I
---
2/12/26 - 5:24:47 pm
36
    
 
DINGEMANS SIMON
DIR
JB
---
6,225
---
1/2/26
---
---
6,225
New
D
R
1/12/26 - 5:06:55 pm
37
    
 
DINGEMANS SIMON
DIR
3
---
---
---
1/2/26
---
---
---
---
---
---
1/12/26 - 5:05:31 pm
38
3m
1
0%
-23%
6
MEHRA SANJEEV K
DIR
B
$3,881,500
350,000
---
12/5/25
---
$11.09
350,000
New
I
R
12/9/25 - 5:11:24 pm
39
    
 
MEHRA SANJEEV K
DIR
JB
---
8,106
---
12/5/25
---
---
8,106
New
D
R
12/9/25 - 5:11:24 pm
40
    
 
MEHRA SANJEEV K
DIR
3
---
---
---
12/5/25
---
---
---
---
---
---
12/9/25 - 5:07:43 pm
41
    
 
LIGNER EMMANUEL
PR,CEO,DIR
B
$993,125
87,500
---
11/17/25
---
$11.35
283,424
44.7
D
---
11/17/25 - 5:45:30 pm
42
    
 
BLENN MARY
VP,COO
JB
---
17,391
---
11/10/25
---
---
17,391
New
D
R
11/12/25 - 5:06:40 pm
43
    
 
BLENN MARY
VP,COO
3
---
---
---
11/10/25
---
---
---
---
---
---
11/12/25 - 5:05:43 pm
44
1y
2
0%
-36%
6
SUMME GREGORY L
DIR
B
$1,125,000
100,000
---
10/30/25
---
$11.25
300,000
50.0
I
---
10/31/25 - 9:46:22 am
45
    
 
LUCIER GREGORY T
DIR
JB
---
8,736
---
10/3/25
---
---
8,736
New
D
R
10/7/25 - 5:04:57 pm
46
    
 
LUCIER GREGORY T
DIR
3
---
---
---
10/3/25
---
---
---
---
---
---
10/7/25 - 5:02:06 pm
47
    
 
GOURDIER BENOIT
VP
JS
$17,405
1,264
---
10/2/25
---
$13.77
235,684
-0.5
D
---
10/3/25 - 4:28:33 pm
48
1y
2
0%
-36%
6
SUMME GREGORY L
DIR
B
$1,256,000
100,000
---
8/21/25
---
$12.56
200,000
100.0
I
---
8/22/25 - 4:15:22 pm
49
    
 
LIGNER EMMANUEL
PR,CEO,DIR
JB
---
195,924
---
8/18/25
---
---
195,924
New
D
R
8/21/25 - 5:06:08 pm
50
    
 
LIGNER EMMANUEL
PR,CEO,DIR
3
---
---
---
8/18/25
---
---
---
---
---
---
8/21/25 - 5:04:45 pm
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