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 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MESA LABORATORIES INC CO: MLAB
Price: 6/27/25 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
$98.67 $155.12 $86.04 $538 6 96 0.7% 4.9% 96.44% 5.98%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks Industrial Instruments For Measurement, Display,and Control
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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
    
 
SAKYS JOHN
CFO
JS
$43,502
454
---
6/21/25
---
$95.82
15,044
-2.9
D
---
6/25/25 - 9:14:30 am
2
    
 
SAKYS JOHN
CFO
JB
$99,270
1,036
---
6/21/25
---
$95.82
15,498
7.2
D
---
6/25/25 - 9:14:30 am
3
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JS
$36,891
385
---
6/21/25
---
$95.82
2,407
-13.8
D
---
6/25/25 - 9:05:08 am
4
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JB
$80,872
844
---
6/21/25
---
$95.82
2,792
43.3
D
---
6/25/25 - 9:05:08 am
5
    
 
OWENS GARY M
PR,CEO
JS
$138,460
1,445
---
6/21/25
---
$95.82
52,577
-2.7
D
---
6/24/25 - 10:12:48 am
6
    
 
OWENS GARY M
PR,CEO
JB
$316,302
3,301
---
6/21/25
---
$95.82
54,022
6.5
D
---
6/24/25 - 10:12:48 am
7
    
 
OWENS GARY M
PR,CEO
JS
$354,292
3,810
---
6/18/25
---
$92.99
50,721
-7.0
D
---
6/20/25 - 5:39:29 pm
8
    
 
OWENS GARY M
PR,CEO
JB
$809,664
8,707
---
6/18/25
---
$92.99
54,531
19.0
D
---
6/20/25 - 5:39:29 pm
9
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JS
$108,426
1,166
---
6/18/25
---
$92.99
1,948
-37.4
D
---
6/20/25 - 5:31:26 pm
10
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JB
$237,682
2,556
---
6/18/25
---
$92.99
3,114
458.1
D
---
6/20/25 - 5:31:26 pm
11
    
 
SAKYS JOHN
CFO
JS
$115,587
1,243
---
6/18/25
---
$92.99
14,462
-7.9
D
---
6/20/25 - 5:22:31 pm
12
    
 
SAKYS JOHN
CFO
JB
$264,092
2,840
---
6/18/25
---
$92.99
15,705
22.1
D
---
6/20/25 - 5:22:31 pm
13
    
 
OWENS GARY M
PR,CEO
S
$188,312
1,939
---
6/16/25
---
$97.12
45,824
-4.1
D
---
6/18/25 - 11:27:07 am
14
1y
10
60%
-12%
1
ARCHBOLD BRIAN DAVID
VP,OO
S
$45,840
472
---
6/16/25
---
$97.12
558
-45.8
D
---
6/18/25 - 11:13:32 am
15
1y
25
72%
-23%
1
SAKYS JOHN
CFO
S
$62,350
642
---
6/16/25
---
$97.12
12,865
-4.8
D
---
6/18/25 - 10:59:04 am
16
    
 
OWENS GARY M
PR,CEO
JB
---
4,426
---
6/15/25
---
---
47,763
10.2
D
---
6/18/25 - 11:27:07 am
17
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JB
---
1,030
---
6/15/25
---
---
1,030
New
D
---
6/18/25 - 11:13:32 am
18
    
 
SAKYS JOHN
CFO
JB
---
1,461
6/15/15
6/15/25
---
---
13,507
12.1
D
---
6/18/25 - 10:59:04 am
19
    
 
OWENS GARY M
PR,CEO
AS
$2,602,110
21,000
---
3/19/25
---
$123.91
43,337
-32.6
D
10b
3/24/25 - 1:38:04 pm
20
    
 
OWENS GARY M
PR,CEO
JB
$2,582,580
21,000
---
3/19/25
---
$122.98
64,337
48.5
D
10b
3/24/25 - 1:38:04 pm
21
    
 
SULLIVAN JOHN JAMES
DIR
JS
---
2,000
---
11/19/24
---
---
25,878
-7.2
D
---
11/25/24 - 11:40:41 am
22
    
 
OWENS GARY M
PR,CEO
S
$571,736
5,069
10/28/24
10/29/24
---
$111.98
43,337
-10.5
D
---
10/29/24 - 8:18:57 pm
23
    
 
OWENS GARY M
PR,CEO
JB
---
11,559
---
10/27/24
---
---
48,406
31.4
D
---
10/29/24 - 8:18:57 pm
24
1y
10
60%
-12%
1
ARCHBOLD BRIAN DAVID
VP,OO
AS
$187,375
1,499
---
9/13/24
---
$125.00
---
All
D
10b
9/16/24 - 12:14:52 pm
25
    
 
SAKYS JOHN
CFO
JS
$60,695
454
---
9/1/24
---
$133.69
12,046
-3.6
D
---
9/6/24 - 12:46:32 pm
26
    
 
SAKYS JOHN
CFO
JB
---
1,037
---
9/1/24
---
---
12,500
9.0
D
---
9/6/24 - 12:46:32 pm
27
    
 
OWENS GARY M
PR,CEO
JS
$193,182
1,445
---
9/1/24
---
$133.69
36,847
-3.8
D
---
9/6/24 - 12:21:54 pm
28
    
 
OWENS GARY M
PR,CEO
JB
---
3,301
---
9/1/24
---
---
38,292
9.4
D
---
9/6/24 - 12:21:54 pm
29
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JS
$51,604
386
---
9/1/24
---
$133.69
1,499
-20.5
D
---
9/6/24 - 12:12:50 pm
30
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JB
---
845
---
9/1/24
---
---
1,885
81.3
D
---
9/6/24 - 12:12:50 pm
31
    
 
SULLIVAN JOHN JAMES
DIR
JB
---
1,074
---
9/1/24
---
---
27,878
4.0
D
---
9/6/24 - 11:53:15 am
32
    
 
TRIPENY R TONY
DIR
JB
---
1,074
---
9/1/24
---
---
2,679
66.9
D
---
9/6/24 - 11:43:15 am
33
    
 
LADIWALA SHIRAZ SHABANALI
DIR
JB
---
1,574
---
9/1/24
---
---
3,074
104.9
D
---
9/6/24 - 11:35:11 am
34
    
 
HALL SHANNON
DIR
JB
---
1,074
---
9/1/24
---
---
2,785
62.8
D
---
9/6/24 - 11:28:36 am
35
    
 
ALLTOFT JENNIFER SADIE
DIR
JB
---
1,074
---
9/1/24
---
---
3,474
44.8
D
---
9/6/24 - 11:22:32 am
36
    
 
CAPONE MARK CHRISTOPHER
DIR
JB
---
724
---
8/15/24
---
---
724
New
D
---
8/19/24 - 11:08:47 am
37
    
 
OWENS GARY M
PR,CEO
JB
---
4,959
---
6/14/24
---
---
34,991
16.5
D
---
6/17/24 - 1:41:41 pm
38
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JS
$37,281
407
---
6/14/24
---
$91.60
1,040
-28.1
D
---
6/17/24 - 11:50:46 am
39
    
 
ARCHBOLD BRIAN DAVID
VP,OO
JB
---
889
---
6/14/24
---
---
1,447
159.3
D
---
6/17/24 - 11:50:46 am
40
    
 
SAKYS JOHN
CFO
JS
$52,395
572
---
6/14/24
---
$91.60
11,463
-4.8
D
---
6/17/24 - 11:31:11 am
41
    
 
SAKYS JOHN
CFO
JB
---
1,304
---
6/14/24
---
---
12,035
12.2
D
---
6/17/24 - 11:31:11 am
42
    
 
CAPONE MARK CHRISTOPHER
DIR
3
---
---
---
1/8/24
---
---
---
---
D
---
2/16/24 - 11:37:32 am
43
1y
10
60%
-12%
1
ARCHBOLD BRIAN DAVID
VP,OO
AS
$168,540
1,500
---
12/15/23
---
$112.36
558
-72.9
D
10b
12/19/23 - 11:21:41 am
44
    
 
SULLIVAN JOHN JAMES
DIR
JS
---
2,200
---
11/9/23
---
---
26,804
-7.6
D
---
11/14/23 - 6:11:25 am
45
    
 
SULLIVAN JOHN JAMES
DIR
JB
---
200
---
11/9/23
---
---
44,780
0.4
I
---
11/14/23 - 6:11:25 am
46
1y
16
44%
-5%
1
SCHMIEDER JOHN BRADLEY
DIR
AS
$492,890
4,000
9/14/23
9/15/23
$123.05
$123.74
62,760
-6.0
D
10b
9/19/23 - 12:34:11 pm
47
1y
16
44%
-5%
1
SCHMIEDER JOHN BRADLEY
DIR
AS
$369,965
3,000
---
9/13/23
---
$123.32
66,760
-4.3
D
10b
9/14/23 - 1:47:49 pm
48
    
 
OWENS GARY M
PR,CEO
OS
$285,640
2,000
---
9/1/23
---
$142.82
30,032
-6.2
D
10b
9/5/23 - 4:34:06 pm
49
    
 
OWENS GARY M
PR,CEO
OE
$272,840
2,000
---
9/1/23
---
$136.42
32,032
6.7
D
10b
9/5/23 - 4:34:06 pm
50
    
 
LADIWALA SHIRAZ SHABANALI
DIR
JB
---
40
---
8/15/23
---
---
1,500
2.7
D
---
9/6/23 - 12:36:00 pm
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