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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History For:
'ZHANG JACK Y'
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Insider Statistics
T N H M S
Insider Title
Company Name
Ticker
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
SIC Code
SIC Sector
SIC Industry
SIC Sub-Industry
Input Date
1
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$177,873
9,784
---
3/15/26
---
$18.18
2,990,052
-0.3
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/17/26 - 6:12:22 pm
2
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$52,867
2,908
---
3/15/26
---
$18.18
1,245,125
-0.2
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/17/26 - 6:12:22 pm
3
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$83,109
4,395
---
3/10/26
---
$18.91
1,248,033
-0.4
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/11/26 - 5:58:21 pm
4
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$279,584
14,785
---
3/10/26
---
$18.91
2,999,836
-0.5
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/11/26 - 5:58:21 pm
5
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JB
---
180,504
---
3/9/26
---
---
3,014,621
6.4
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/11/26 - 5:58:21 pm
6
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JB
---
72,462
---
3/9/26
---
---
1,252,428
6.1
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/11/26 - 5:58:21 pm
7
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$59,509
3,077
---
3/6/26
---
$19.34
1,179,966
-0.3
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/10/26 - 5:41:43 pm
8
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$150,330
7,773
---
3/6/26
---
$19.34
2,834,117
-0.3
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/10/26 - 5:41:43 pm
9
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$115,149
5,769
---
3/4/26
---
$19.96
2,841,890
-0.2
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/6/26 - 9:58:54 pm
10
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$48,543
2,432
---
3/4/26
---
$19.96
1,183,043
-0.2
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/6/26 - 9:58:54 pm
11
1y
13
62%
1%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OB
$2,606,000
200,000
---
6/13/25
---
$13.03
2,847,659
7.6
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
6/16/25 - 5:19:35 pm
12
1y
36
42%
9%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OS
$4,646,147
173,995
3/14/25
3/17/25
$26.66
$27.69
1,185,475
-12.8
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/18/25 - 7:13:17 pm
13
1y
36
42%
9%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OS
$6,740,287
252,200
3/14/25
3/17/25
$26.66
$27.69
2,647,659
-8.7
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/18/25 - 7:13:17 pm
14
1y
13
62%
1%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OB
$4,267,107
290,477
---
3/14/25
---
$14.69
2,899,859
11.1
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/18/25 - 7:13:17 pm
15
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OE
$3,102,719
211,213
---
3/14/25
---
$14.69
1,359,470
18.4
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/18/25 - 7:13:17 pm
16
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JB
---
48,996
---
3/10/25
---
---
1,148,257
4.5
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/12/25 - 4:03:21 pm
17
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JB
---
116,226
---
3/10/25
---
---
2,609,382
4.7
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/12/25 - 4:03:21 pm
18
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$86,914
3,069
---
3/6/25
---
$28.32
1,099,261
-0.3
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/10/25 - 4:04:32 pm
19
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
$273,146
9,645
---
3/6/25
---
$28.32
2,493,156
-0.4
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/10/25 - 4:04:32 pm
20
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
---
125,000
---
11/11/24
---
---
1,104,756
-10.2
I
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
11/12/24 - 8:05:04 pm
21
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
JS
---
125,000
---
11/11/24
---
---
2,508,554
-4.7
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
11/12/24 - 8:05:04 pm
22
1y
13
62%
1%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OB
$1,469,000
100,000
---
9/13/24
---
$14.69
2,633,554
3.9
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
9/16/24 - 7:09:17 pm
23
1y
13
62%
1%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OB
$1,469,000
100,000
---
6/10/24
---
$14.69
2,533,554
4.1
D
---
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
6/11/24 - 6:35:15 pm
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