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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
$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
2
    
 
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
3
1y
12
67%
4%
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
4
1y
34
38%
12%
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
5
1y
34
38%
12%
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
6
1y
12
67%
4%
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
7
    
 
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
8
    
 
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
9
    
 
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
10
    
 
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
11
    
 
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
12
    
 
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
13
    
 
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
14
1y
12
67%
4%
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
15
1y
12
67%
4%
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
16
1y
34
38%
12%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OS
$9,028,016
209,710
3/15/24
3/17/24
---
$43.05
1,229,756
-14.6
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/19/24 - 6:55:31 pm
17
1y
34
38%
12%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OS
$18,274,252
424,489
3/15/24
3/17/24
---
$43.05
2,433,554
-14.9
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/19/24 - 6:55:31 pm
18
1y
12
67%
4%
1
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OB
$8,996,693
722,046
---
3/15/24
---
$12.46
2,858,043
33.8
D
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/19/24 - 6:55:31 pm
19
    
 
CEO,DIR,BO
AMPHASTAR PHARMACEUTICALS INC
AMPH
OE
$3,874,188
310,930
---
3/15/24
---
$12.46
1,439,466
27.6
I
R
2834
Manufacturing
Chemicals And Allied Products
Pharmaceutical Preparations
3/19/24 - 6:55:31 pm
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