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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:
AMPHASTAR PHARMACEUTICALS INC: AMPH
Price: 11/15/24 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
$44.61 $65.92 $36.56 $2,145 48 346 0.0% 13.8% 74.76% 22.41%
Exch Sector Industry Sub-Industry
NasdaqGS Services Engineering, Accounting, Research, Management, And Related Services Services- Management Services
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#
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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
    
 
DEFLIN GAYLE
DIR
S
$64,728
1,500
---
5/15/23
---
$43.15
8,682
-14.7
D
---
5/17/23 - 4:05:15 pm
2
1y
12
25%
12%
1
ZASLOFF MICHAEL A
DIR
S
$316,335
7,500
---
5/15/23
---
$42.18
43,869
-14.6
D
---
5/16/23 - 8:01:53 pm
3
1y
27
37%
12%
3
PRINS RICHARD K
DIR
OS
$427,825
10,000
5/12/23
5/15/23
$42.06
$43.50
44,342
-18.4
D
---
5/16/23 - 7:59:39 pm
4
    
 
PRINS RICHARD K
DIR
OE
$166,900
10,000
5/12/23
5/15/23
---
$16.69
52,342
23.6
D
---
5/16/23 - 7:59:39 pm
5
    
 
PRINS RICHARD K
DIR
JS
---
3,000
---
5/12/23
---
---
44,342
-6.3
D
---
5/16/23 - 7:59:39 pm
6
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$238,515
5,632
---
4/17/23
---
$42.35
105,148
-5.1
D
10b
4/18/23 - 8:07:05 pm
7
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$75,187
5,632
---
4/17/23
---
$13.35
110,780
5.4
D
10b
4/18/23 - 8:07:05 pm
8
1y
17
82%
6%
1
LIAWATIDEWI YAKOB
VP,DIR
OS
$477,748
11,494
---
4/13/23
$41.00
$42.00
69,215
-14.2
D
10b
4/14/23 - 5:50:00 pm
9
    
 
LIAWATIDEWI YAKOB
VP,DIR
OE
$232,524
11,494
---
4/13/23
---
$20.23
80,709
16.6
D
10b
4/14/23 - 5:50:00 pm
10
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$206,160
4,868
---
4/13/23
---
$42.35
105,148
-4.4
D
10b
4/14/23 - 5:48:03 pm
11
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$64,988
4,868
---
4/13/23
---
$13.35
110,016
4.6
D
10b
4/14/23 - 5:48:03 pm
12
1y
17
82%
6%
1
LIAWATIDEWI YAKOB
VP,DIR
OS
$200,000
5,000
---
4/10/23
---
$40.00
69,215
-6.7
D
10b
4/12/23 - 5:22:46 pm
13
    
 
LIAWATIDEWI YAKOB
VP,DIR
OE
$101,150
5,000
---
4/10/23
---
$20.23
74,215
7.2
D
10b
4/12/23 - 5:22:46 pm
14
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$404,791
10,032
---
4/10/23
---
$40.35
105,148
-8.7
D
10b
4/12/23 - 5:21:12 pm
15
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$133,927
10,032
---
4/10/23
---
$13.35
115,180
9.5
D
10b
4/12/23 - 5:21:12 pm
16
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$18,519
491
---
4/3/23
---
$37.72
85,117
-0.6
D
10b
4/4/23 - 7:12:50 pm
17
    
 
LIAWATIDEWI YAKOB
VP
JS
$121,625
3,293
3/16/23
3/17/23
---
$36.29
69,215
-4.5
D
R
3/20/23 - 8:05:37 pm
18
    
 
ZHOU RONG
VP
JS
$154,828
4,184
3/16/23
3/17/23
---
$36.29
87,598
-4.6
D
R
3/20/23 - 8:04:47 pm
19
    
 
PETERS WILLIAM J
CFO,VP,TR
JS
$338,851
9,157
3/16/23
3/17/23
---
$36.29
105,148
-8.0
D
R
3/20/23 - 8:03:57 pm
20
    
 
ZHANG JACK Y
CEO,DIR,BO
JS
$1,521,282
41,009
3/16/23
3/17/23
---
$36.29
2,078,718
-1.9
D
R
3/20/23 - 8:02:27 pm
21
    
 
ZHANG JACK Y
CEO,DIR,BO
JS
$631,842
131,780
3/16/23
3/17/23
---
$36.29
---
All
I
R
3/20/23 - 8:02:27 pm
22
    
 
LIAWATIDEWI YAKOB
VP
JS
$68,191
1,851
---
3/15/23
---
$36.84
72,508
-2.5
D
R
3/17/23 - 7:07:26 pm
23
    
 
ZHOU RONG
VP
JS
$75,780
2,057
---
3/15/23
---
$36.84
91,782
-2.2
D
R
3/17/23 - 7:04:16 pm
24
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR
OS
$465,472
12,776
---
3/15/23
---
$36.43
118,451
-9.7
D
R,10b
3/17/23 - 7:03:06 pm
25
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR
OS
$152,739
4,146
---
3/15/23
---
$36.84
114,305
-3.5
D
R,10b
3/17/23 - 7:03:06 pm
26
    
 
PETERS WILLIAM J
CFO,VP,TR
OE
$99,986
6,688
---
3/15/23
---
$14.95
131,227
5.4
D
R,10b
3/17/23 - 7:03:06 pm
27
    
 
ZHANG JACK Y
CEO,DIR,BO
JS
$103,263
2,803
---
3/15/23
---
$36.84
1,530,017
-0.2
I
R
3/17/23 - 7:01:35 pm
28
    
 
ZHANG JACK Y
CEO,DIR,BO
JS
$310,709
8,434
---
3/15/23
---
$36.84
2,177,092
-0.4
D
R
3/17/23 - 7:01:35 pm
29
    
 
PETERS WILLIAM J
CFO,VP,TR
JB
---
23,925
---
3/6/23
---
---
124,539
23.8
D
R
3/8/23 - 4:38:03 pm
30
    
 
LIAWATIDEWI YAKOB
VP
JB
---
12,752
---
3/6/23
---
---
74,359
20.7
D
R
3/8/23 - 4:07:11 pm
31
    
 
ZHOU RONG
VP
JB
---
15,129
---
3/6/23
---
---
93,839
19.2
D
R
3/8/23 - 4:06:17 pm
32
    
 
ZHANG JACK Y
CEO,DIR,BO
JB
---
34,301
---
3/6/23
---
---
1,532,820
2.3
I
R
3/8/23 - 4:05:27 pm
33
    
 
ZHANG JACK Y
CEO,DIR,BO
JB
---
81,383
---
3/6/23
---
---
2,185,526
3.9
D
R
3/8/23 - 4:05:27 pm
34
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR
OS
$398,685
10,974
---
3/1/23
---
$36.33
100,614
-9.8
D
10b
3/3/23 - 4:47:47 pm
35
    
 
PETERS WILLIAM J
CFO,VP,TR
OE
$124,335
10,974
---
3/1/23
---
$11.33
111,588
10.9
D
10b
3/3/23 - 4:47:47 pm
36
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$18,349
500
---
3/1/23
$33.70
$37.25
85,608
-0.6
D
10b
3/2/23 - 7:33:25 pm
37
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$15,176
500
---
2/1/23
---
$30.35
86,108
-0.6
D
10b
2/2/23 - 4:44:51 pm
38
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$13,971
500
---
1/3/23
---
$27.94
86,608
-0.6
D
10b
1/4/23 - 4:01:37 pm
39
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$15,067
500
---
12/1/22
---
$30.13
87,108
-0.6
D
10b
12/2/22 - 4:24:16 pm
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