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Detailed Insider History for:
AMBIQ MICRO INC: AMBQ
Price: 9/18/26 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
$65.46 $91.61 $22.12 $1,583 24 574 0.0% 7.9% 81.70% 5.09%
Exch Sector Industry Sub-Industry
NYSE Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Semiconductors & Related Devices
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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
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OS
$421,942
7,000
---
9/15/26
$59.53
$61.00
221,226
-3.1
D
10b
9/17/26 - 4:06:47 pm
2
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OE
$56,840
7,000
---
9/15/26
---
$8.12
228,226
3.2
D
10b
9/17/26 - 4:06:47 pm
3
    
 
ESAKA FUMIHIDE
CEO,DIR
OS*
$813,715
13,500
---
9/15/26
$59.56
$61.00
460,460
-2.8
D
10b
9/15/26 - 6:56:18 pm
4
    
 
ESAKA FUMIHIDE
CEO,DIR
OE*
$739,620
63,500
9/11/26
9/15/26
---
$8.12
510,460
14.2
D
10b
9/15/26 - 6:56:18 pm
5
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OS
$902,130
15,000
---
9/14/26
$59.36
$60.83
120,275
-11.1
D
10b
9/15/26 - 6:57:35 pm
6
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OE
$121,800
15,000
---
9/14/26
---
$8.12
135,275
12.5
D
10b
9/15/26 - 6:57:35 pm
7
    
 
ZHANG KER
DIR
S
$634,361
10,000
---
9/11/26
$63.39
$63.95
20,366
-32.9
D
---
9/15/26 - 6:58:28 pm
8
    
 
ESAKA FUMIHIDE
CEO,DIR
AS
$3,167,994
50,000
---
9/11/26
$63.27
$63.86
460,460
-9.8
D
10b
9/15/26 - 6:56:18 pm
9
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OS
$857,558
15,000
---
9/4/26
$57.09
$57.68
120,275
-11.1
D
10b
9/9/26 - 5:10:41 pm
10
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OE
$121,800
15,000
---
9/4/26
---
$8.12
135,275
12.5
D
10b
9/9/26 - 5:10:41 pm
11
    
 
ZHANG KER
DIR
OS*
$10,530
185
---
9/4/26
---
$56.92
30,366
-0.6
D
---
9/9/26 - 5:08:21 pm
12
    
 
ZHANG KER
DIR
OE*
$10,496
1,785
---
9/4/26
---
$5.88
30,551
6.2
D
---
9/9/26 - 5:08:21 pm
13
    
 
ESAKA FUMIHIDE
CEO,DIR
OS*
$625,108
11,027
---
9/2/26
$56.15
$56.77
460,460
-2.3
D
10b
9/2/26 - 4:47:53 pm
14
    
 
ESAKA FUMIHIDE
CEO,DIR
OE*
$1,423,435
117,771
8/31/26
9/2/26
$8.12
$12.60
509,433
30.1
D
10b
9/2/26 - 4:47:53 pm
15
    
 
ESAKA FUMIHIDE
CEO,DIR
AS
$5,547,438
97,473
8/31/26
9/1/26
---
$56.39
451,189
-17.8
D
10b
9/2/26 - 4:47:53 pm
16
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OS
$3,283,079
55,000
8/26/26
8/27/26
$59.58
$60.32
221,226
-19.9
D
---
8/28/26 - 5:19:15 pm
17
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OE
$527,800
65,000
8/26/26
8/27/26
---
$8.12
248,726
35.4
D
---
8/28/26 - 5:19:15 pm
18
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OS
$450,639
7,000
---
8/14/26
$63.26
$65.30
211,226
-3.2
D
10b
8/18/26 - 4:40:46 pm
19
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OE
$56,840
7,000
---
8/14/26
---
$8.12
218,226
3.3
D
10b
8/18/26 - 4:40:46 pm
20
    
 
ESAKA FUMIHIDE
CEO,DIR
OS
$869,226
13,500
---
8/14/26
$63.29
$65.26
451,189
-2.9
D
10b
8/18/26 - 4:30:14 pm
21
    
 
ESAKA FUMIHIDE
CEO,DIR
OE
$109,620
13,500
---
8/14/26
---
$8.12
464,689
3.0
D
10b
8/18/26 - 4:30:14 pm
22
    
 
HSIEH WEN HSUAN
DIR
JB
---
4,957
---
6/8/26
---
---
4,957
New
D
R
6/10/26 - 5:01:30 pm
23
    
 
CHEN TIMOTHY
DIR
JB
---
4,957
---
6/8/26
---
---
52,575
10.4
D
R
6/10/26 - 4:46:30 pm
24
    
 
BANKS BERNARD BENNETT
DIR
JB
---
4,957
---
6/8/26
---
---
4,957
New
D
R
6/10/26 - 4:45:14 pm
25
    
 
TAUTGES JOSEPH A
DIR
JB
---
4,957
---
6/8/26
---
---
53,703
10.2
D
R
6/10/26 - 4:43:59 pm
26
    
 
ZHANG KER
DIR
JB
---
4,957
---
6/8/26
---
---
28,766
20.8
D
R
6/10/26 - 4:42:19 pm
27
3m
2
0%
-19%
2
WINZELER JEFFREY G
CFO
OB
$99,994
5,952
---
6/2/26
---
$16.80
106,299
5.9
D
---
6/4/26 - 5:01:07 pm
28
    
 
CHEN TIMOTHY
DIR
S
$5,632,525
70,592
---
5/27/26
$78.85
$81.57
---
All
I
---
5/29/26 - 7:51:36 pm
29
3m
2
0%
-19%
2
WINZELER JEFFREY G
CFO
OB
$536,794
31,952
5/14/26
5/15/26
---
$16.80
120,395
36.1
D
---
5/18/26 - 6:12:58 pm
30
    
 
HANSON SCOTT MCLEAN
CTO,DIR
OB
$148,596
18,300
5/14/26
5/15/26
---
$8.12
213,326
9.4
D
---
5/18/26 - 5:59:50 pm
31
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OS
$3,947,281
55,685
---
5/15/26
$70.53
$71.37
120,275
-31.6
D
---
5/18/26 - 5:48:44 pm
32
    
 
CHEN SEAN CHIHHSIANG
PR,COO
OE
$327,428
55,685
---
5/15/26
---
$5.88
175,960
46.3
D
---
5/18/26 - 5:48:44 pm
33
    
 
ESAKA FUMIHIDE
CEO,DIR
OB
$1,039,526
120,000
5/14/26
5/15/26
$8.12
$12.60
451,189
36.2
D
---
5/18/26 - 5:44:22 pm
34
3m
1
100%
-5%
2
WINZELER JEFFREY G
CFO
S
$1,817,412
26,000
---
5/14/26
$69.90
$70.65
94,395
-21.6
D
---
5/18/26 - 6:12:58 pm
35
    
 
HANSON SCOTT MCLEAN
CTO,DIR
S
$706,252
10,200
---
5/14/26
$68.62
$70.50
203,126
-4.8
D
---
5/18/26 - 5:59:50 pm
36
    
 
ESAKA FUMIHIDE
CEO,DIR
S
$4,201,122
60,000
---
5/14/26
---
$70.02
391,189
-13.3
D
---
5/18/26 - 5:44:22 pm
37
    
 
CONNORS MICHELE KIM
GC
S
$21,210
811
---
4/2/26
$26.04
$26.65
60,554
-1.3
D
R
4/6/26 - 5:01:03 pm
38
    
 
WINZELER JEFFREY G
CFO
JB
---
41,728
---
3/6/26
---
---
94,395
79.2
D
A,R
4/2/26 - 4:36:41 pm
39
    
 
CHEN SEAN CHIHHSIANG
PR,COO
JB
---
64,246
---
3/6/26
---
---
120,275
114.7
D
A,R
4/2/26 - 4:35:51 pm
40
    
 
HANSON SCOTT MCLEAN
CTO,DIR
JB
---
80,308
---
3/6/26
---
---
203,126
65.4
D
A,R
4/2/26 - 4:35:08 pm
41
    
 
ESAKA FUMIHIDE
CEO,DIR
JB
---
160,616
---
3/6/26
---
---
391,189
69.7
D
A,R
4/2/26 - 4:34:23 pm
42
    
 
CONNORS MICHELE KIM
GC
JB
---
32,123
---
3/6/26
---
---
61,365
109.9
D
A,R
4/2/26 - 4:32:27 pm
43
    
 
CONNORS MICHELE KIM
GC
JB
---
32,123
---
3/6/26
---
---
61,365
109.9
D
R
3/10/26 - 5:12:05 pm
44
    
 
WINZELER JEFFREY G
CFO
JB
---
41,728
---
3/6/26
---
---
94,395
79.2
D
R
3/10/26 - 5:06:17 pm
45
    
 
CHEN SEAN CHIHHSIANG
PR,COO
JB
---
64,246
---
3/6/26
---
---
120,275
114.7
D
R
3/10/26 - 5:02:45 pm
46
    
 
HANSON SCOTT MCLEAN
CTO,DIR
JB
---
80,308
---
3/6/26
---
---
203,126
65.4
D
R
3/10/26 - 5:00:48 pm
47
    
 
ESAKA FUMIHIDE
CEO,DIR
JB
---
160,616
---
3/6/26
---
---
391,189
69.7
D
R
3/10/26 - 4:49:15 pm
48
    
 
HSIEH WEN HSUAN
DIR
OB
$3,010,531
238,931
---
2/18/26
---
$12.60
633,920
60.5
I
---
2/20/26 - 5:47:25 pm
49
6m
1
0%
75%
2
TAUTGES JOSEPH A
DIR
S
$241,800
7,800
---
1/26/26
---
$31.00
48,746
-13.8
D
---
1/28/26 - 6:15:48 pm
50
    
 
HANSON SCOTT MCLEAN
CTO,DIR
S
$310,000
10,000
---
1/26/26
---
$31.00
122,818
-7.5
D
---
1/28/26 - 6:12:33 pm
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