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 JS
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Detailed Insider History for:
MIDDLEFIELD BANC CORP: MBCN
Price: 12/12/25 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
$36.88 $37.68 $22.74 $298 8 18 2.3% 0.6% 34.65% 3.84%
Exch Sector Industry Sub-Industry
NasdaqCM Finance, Insurance, And Real Estate Depository Institutions State Commercial Banks
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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
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JS
$152,662
4,126
---
12/17/25
---
$37.00
49,204
-7.7
D
R
12/18/25 - 5:57:20 pm
2
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JB
$548,118
14,814
---
12/17/25
---
$37.00
53,330
38.5
D
R
12/18/25 - 5:57:20 pm
3
    
 
WILSON THOMAS M
VP
JS
$17,760
480
---
12/17/25
---
$37.00
9,048
-5.0
D
R
12/18/25 - 5:45:04 pm
4
    
 
WILSON THOMAS M
VP
JB
$61,087
1,651
---
12/17/25
---
$37.00
9,528
21.0
D
R
12/18/25 - 5:45:04 pm
5
    
 
WINTERS SARAH A
VP
JS
$56,129
1,517
---
12/17/25
---
$37.00
4,292
-26.1
D
R
12/18/25 - 5:38:26 pm
6
    
 
WINTERS SARAH A
VP
JB
$192,548
5,204
---
12/17/25
---
$37.00
5,809
860.2
D
R
12/18/25 - 5:38:26 pm
7
    
 
RANTTILA MICHAEL
VP,CFO
JS
$146,594
3,962
---
12/17/25
---
$37.00
18,480
-17.7
D
R
12/18/25 - 5:22:31 pm
8
    
 
RANTTILA MICHAEL
VP,CFO
JB
$602,027
16,271
---
12/17/25
---
$37.00
22,442
263.7
D
R
12/18/25 - 5:22:31 pm
9
    
 
NOBLIT REBECCA A
VP
JS
$7,141
193
---
12/17/25
---
$37.00
7,209
-2.6
D
R
12/18/25 - 5:05:27 pm
10
    
 
NOBLIT REBECCA A
VP
JB
$25,012
676
---
12/17/25
---
$37.00
7,402
10.1
D
R
12/18/25 - 5:05:27 pm
11
    
 
CHERAVITCH MICHAEL L
VP
JS
$56,018
1,514
---
12/17/25
---
$37.00
4,295
-26.1
D
R
12/18/25 - 4:47:05 pm
12
    
 
CHERAVITCH MICHAEL L
VP
JB
$192,548
5,204
---
12/17/25
---
$37.00
5,809
860.2
D
R
12/18/25 - 4:47:05 pm
13
    
 
ERMINIO COURTNEY M
VP
JS
$44,474
1,202
---
12/17/25
---
$37.00
7,474
-13.9
D
R
12/18/25 - 4:10:21 pm
14
    
 
ERMINIO COURTNEY M
VP
JB
$156,843
4,239
---
12/17/25
---
$37.00
8,676
95.5
D
R
12/18/25 - 4:10:21 pm
15
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JS
$38,720
1,112
---
12/1/25
---
$34.82
38,516
-2.8
D
R
12/3/25 - 11:07:34 am
16
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JB
$131,898
3,788
---
12/1/25
---
$34.82
39,628
10.6
D
R
12/3/25 - 11:07:34 am
17
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JS
$17,974
663
---
8/6/25
---
$27.11
35,840
-1.8
D
R
8/7/25 - 8:24:29 pm
18
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JB
$61,269
2,260
---
8/6/25
---
$27.11
36,503
6.6
D
R
8/7/25 - 8:24:29 pm
19
    
 
NOBLIT REBECCA A
VP
JS
$6,452
238
---
8/6/25
---
$27.11
6,726
-3.4
D
R
8/7/25 - 8:13:17 pm
20
    
 
NOBLIT REBECCA A
VP
JB
$23,125
853
---
8/6/25
---
$27.11
6,964
14.0
D
R
8/7/25 - 8:13:17 pm
21
    
 
ERMINIO COURTNEY M
VP
JS
$6,561
242
---
8/6/25
---
$27.11
4,437
-5.2
D
R
8/7/25 - 8:02:01 pm
22
    
 
ERMINIO COURTNEY M
VP
JB
$23,125
853
---
8/6/25
---
$27.11
4,679
22.3
D
R
8/7/25 - 8:02:01 pm
23
    
 
CHERAVITCH MICHAEL L
VP
JS
$6,723
248
---
8/6/25
---
$27.11
605
-29.1
D
R
8/7/25 - 7:44:30 pm
24
    
 
CHERAVITCH MICHAEL L
VP
JB
$23,125
853
---
8/6/25
---
$27.11
853
New
D
R
8/7/25 - 7:44:30 pm
25
    
 
WINTERS SARAH A
VP
JS
$6,723
248
---
8/6/25
---
$27.11
605
-29.1
D
R
8/7/25 - 7:29:35 pm
26
    
 
WINTERS SARAH A
VP
JB
$23,125
853
---
8/6/25
---
$27.11
853
New
D
R
8/7/25 - 7:29:35 pm
27
    
 
WILSON THOMAS M
VP
JS
$7,076
261
---
8/6/25
---
$27.11
7,877
-3.2
D
R
8/7/25 - 7:17:56 pm
28
    
 
WILSON THOMAS M
VP
JB
$23,125
853
---
8/6/25
---
$27.11
8,138
11.7
D
R
8/7/25 - 7:17:56 pm
29
    
 
RANTTILA MICHAEL
VP,CFO
JS
$11,874
438
---
8/6/25
---
$27.11
6,171
-6.6
D
R
8/7/25 - 6:49:22 pm
30
    
 
RANTTILA MICHAEL
VP,CFO
JB
$40,828
1,506
---
8/6/25
---
$27.11
6,609
29.5
D
R
8/7/25 - 6:49:22 pm
31
    
 
RANTTILA MICHAEL
VP,CFO
JS
$13,759
560
---
2/23/25
---
$24.57
5,103
-9.9
D
R
3/3/25 - 3:16:54 pm
32
    
 
RANTTILA MICHAEL
VP,CFO
JB
$40,000
1,628
---
2/23/25
---
$24.57
5,663
40.3
D
R
3/3/25 - 3:16:54 pm
33
    
 
ERMINIO COURTNEY M
VP
JS
$11,425
465
---
2/23/25
---
$24.57
3,826
-10.8
D
R
3/3/25 - 2:49:39 pm
34
    
 
ERMINIO COURTNEY M
VP
JB
$33,980
1,383
---
2/23/25
---
$24.57
4,291
47.6
D
R
3/3/25 - 2:49:39 pm
35
    
 
DIGERONIMO KEVIN A
DIR
B
$50,018
1,950
---
2/21/25
---
$25.65
4,666
71.8
D
---
3/27/25 - 4:44:00 pm
36
    
 
VOINOVICH MICHAEL C
DIR
B
$3,120
120
---
2/21/25
---
$26.00
769
18.5
I
---
2/25/25 - 6:42:50 am
37
    
 
RANTTILA MICHAEL
VP,CFO
B
$1,207
48
---
2/21/25
---
$25.15
50
2,400.0
I
R
2/24/25 - 4:59:00 pm
38
    
 
RANTTILA MICHAEL
VP,CFO
B
$7,650
300
---
2/3/25
---
$25.50
300
New
I
R
2/4/25 - 12:08:43 pm
39
    
 
MOELLER JENNIFER L
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
2,077
15.4
D
---
1/2/25 - 5:19:18 pm
40
    
 
MAST DARRYL E
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
5,681
5.1
D
---
1/2/25 - 4:32:13 pm
41
    
 
MCCASKEY JAMES J
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
5,524
5.3
D
---
1/2/25 - 4:17:14 pm
42
    
 
JONES KENNETH E
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
17,320
1.6
D
---
1/2/25 - 4:10:34 pm
43
    
 
DIGERONIMO KEVIN A
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
2,716
11.4
D
---
1/2/25 - 4:04:56 pm
44
    
 
BEVAN THOMAS W
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
26,153
1.1
D
---
1/2/25 - 3:58:21 pm
45
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JB
$7,798
278
---
1/1/25
---
$28.05
34,243
0.8
D
R
1/2/25 - 3:51:04 pm
46
    
 
VOINOVICH MICHAEL C
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
3,122
9.8
D
---
1/2/25 - 3:13:51 pm
47
    
 
TURK CAROLYN J
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
32,155
0.9
D
---
1/2/25 - 2:43:06 pm
48
    
 
SKIDMORE WILLIAM J
DIR
JB
$7,798
278
---
1/1/25
---
$28.05
20,337
1.4
D
---
1/2/25 - 2:03:45 pm
49
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JS
$34,450
1,112
---
12/1/24
---
$30.98
33,965
-3.2
D
R
12/3/24 - 2:50:41 pm
50
    
 
ZIMMERLY RONALD LEN JR
CEO,DIR
JB
$117,352
3,788
---
12/1/24
---
$30.98
35,077
12.1
D
R
12/3/24 - 2:50:41 pm
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