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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
    
 
ZHANG JACK Y
CEO,DIR,BO
JB
---
64,310
---
3/4/24
---
---
2,143,028
3.1
D
R
3/6/24 - 6:29:28 pm
2
    
 
LIAWATIDEWI YAKOB
VP,DIR
JB
---
10,754
---
3/4/24
---
---
80,423
15.4
D
R
3/6/24 - 5:54:00 pm
3
    
 
ZHOU RONG
VP
JB
---
12,521
---
3/4/24
---
---
124,941
11.1
D
R
3/6/24 - 5:51:48 pm
4
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
JB
---
19,440
---
3/4/24
---
---
120,800
19.2
D
R
3/6/24 - 5:49:35 pm
5
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$22,847
500
---
3/1/24
$45.60
$46.53
79,833
-0.6
D
10b
3/4/24 - 8:35:23 pm
6
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$26,548
500
---
2/1/24
$53.07
$53.64
80,333
-0.6
D
10b
2/2/24 - 7:37:11 pm
7
    
 
LUO MARY Z
COO,DIR,BO
AS
$7,171,768
131,386
---
1/10/24
$54.32
$57.00
1,104,416
-10.6
D
10b
1/11/24 - 4:37:53 pm
8
    
 
LUO MARY Z
COO,DIR,BO
AS
$12,798,708
219,800
1/8/24
1/9/24
$56.70
$58.35
1,235,802
-15.1
D
10b
1/10/24 - 6:27:18 pm
9
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$8,902
147
---
1/2/24
---
$60.56
81,186
-0.2
D
10b
1/3/24 - 7:25:01 pm
10
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$21,781
353
---
1/2/24
---
$61.70
80,833
-0.4
D
10b
1/3/24 - 7:25:01 pm
11
1y
17
47%
18%
1
ZHOU RONG
VP
OS
$462,195
7,830
12/1/23
12/4/23
$58.58
$59.58
112,420
-6.5
D
---
12/5/23 - 6:25:04 pm
12
    
 
ZHOU RONG
VP
OE
$119,042
7,830
12/1/23
12/4/23
$14.40
$16.19
116,736
7.2
D
---
12/5/23 - 6:25:04 pm
13
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$28,952
500
---
12/1/23
$57.24
$58.15
81,333
-0.6
D
10b
12/4/23 - 8:49:41 pm
14
1y
27
37%
12%
3
PRINS RICHARD K
DIR
S
$223,446
4,000
---
11/17/23
---
$55.86
31,895
-11.1
D
---
11/20/23 - 5:23:35 pm
15
    
 
PRINS RICHARD K
DIR
JS
---
1,000
---
11/17/23
---
---
30,895
-3.1
D
---
11/20/23 - 5:23:35 pm
16
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$3,298,475
59,250
---
11/14/23
$54.76
$56.53
101,360
-36.9
D
10b
11/16/23 - 4:05:15 pm
17
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$925,028
59,250
---
11/14/23
---
$13.03
160,610
58.5
D
10b
11/16/23 - 4:05:15 pm
18
    
 
DEFLIN GAYLE
DIR
S
$230,838
4,163
---
11/14/23
---
$55.45
2,716
-60.5
D
---
11/15/23 - 4:30:11 pm
19
1y
27
37%
12%
3
PRINS RICHARD K
DIR
S
$262,500
5,000
---
11/13/23
---
$52.50
35,895
-12.2
D
---
11/15/23 - 4:31:26 pm
20
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$22,651
500
---
11/1/23
---
$45.30
81,833
-0.6
D
10b
11/2/23 - 8:37:19 pm
21
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
AS
$22,890
500
---
10/2/23
---
$45.78
82,333
-0.6
D
10b
10/3/23 - 6:38:33 pm
22
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$3,143,195
60,743
---
9/6/23
$51.75
$52.26
101,360
-37.5
D
10b
9/8/23 - 4:08:31 pm
23
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$956,795
56,500
---
9/6/23
---
$13.03
162,103
53.5
D
10b
9/8/23 - 4:08:31 pm
24
1y
17
82%
6%
1
LIAWATIDEWI YAKOB
VP,DIR
OS
$1,530,994
28,816
---
8/28/23
---
$53.13
69,669
-29.3
D
10b
8/29/23 - 6:54:15 pm
25
    
 
LIAWATIDEWI YAKOB
VP,DIR
OE
$428,095
28,816
---
8/28/23
---
$13.03
98,485
41.4
D
10b
8/29/23 - 6:54:15 pm
26
1y
27
37%
12%
3
PRINS RICHARD K
DIR
S
$105,006
2,000
---
8/18/23
---
$52.50
40,895
-4.7
D
---
8/21/23 - 4:05:21 pm
27
1y
12
25%
12%
1
ZASLOFF MICHAEL A
DIR
S
$730,025
12,759
---
8/15/23
---
$57.22
33,826
-27.4
D
---
8/16/23 - 8:23:43 pm
28
1y
27
37%
12%
3
PRINS RICHARD K
DIR
S
$238,911
4,163
---
8/15/23
---
$57.39
42,895
-8.8
D
---
8/16/23 - 8:22:39 pm
29
1y
1
100%
12%
1
ZHOU RONG
VP
OB
$109,346
9,651
---
6/20/23
---
$11.33
112,341
9.4
D
---
6/21/23 - 5:05:43 pm
30
1y
17
47%
18%
1
ZHOU RONG
VP
OS
$241,200
5,000
---
6/13/23
---
$48.24
88,313
-5.4
D
---
6/14/23 - 5:36:12 pm
31
    
 
ZHOU RONG
VP
OE
$72,000
5,000
---
6/13/23
---
$14.40
93,313
5.7
D
---
6/14/23 - 5:36:12 pm
32
    
 
LEE HOWARD
DIR
JS
$17,126
375
---
6/10/23
---
$45.67
145,280
-0.3
D
R
6/12/23 - 4:05:49 pm
33
    
 
PRINS RICHARD K
DIR
JB
---
2,716
---
6/5/23
---
---
47,058
6.1
D
R
6/7/23 - 8:13:47 pm
34
    
 
PETERSEN FLOYD F
DIR
JB
---
2,716
---
6/5/23
---
---
82,833
3.4
D
R
6/7/23 - 8:12:37 pm
35
    
 
GERST DIANE G
DIR
JB
---
2,716
---
6/5/23
---
---
15,558
21.1
D
R
6/7/23 - 6:24:37 pm
36
    
 
ZASLOFF MICHAEL A
DIR
JB
---
2,716
---
6/5/23
---
---
46,585
6.2
D
R
6/7/23 - 5:20:38 pm
37
    
 
LEE HOWARD
DIR
JB
---
2,716
---
6/5/23
---
---
145,655
1.9
D
R
6/7/23 - 5:19:44 pm
38
    
 
DEFLIN GAYLE
DIR
JB
---
2,716
---
6/5/23
---
---
6,879
65.2
D
R
6/7/23 - 5:18:56 pm
39
    
 
LIAWATIDEWI YAKOB
VP,DIR
JS
$17,653
378
---
6/4/23
---
$46.70
69,669
-0.5
D
R
6/6/23 - 6:49:04 pm
40
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$509,859
11,000
---
6/2/23
---
$46.35
105,603
-9.4
D
10b
6/5/23 - 5:06:59 pm
41
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$146,850
11,000
---
6/2/23
---
$13.35
116,603
10.4
D
10b
6/5/23 - 5:06:59 pm
42
1y
11
27%
28%
2
LEE HOWARD
DIR
OS
$750,960
16,679
---
6/1/23
---
$45.02
142,939
-10.4
D
---
6/5/23 - 4:18:06 pm
43
    
 
LEE HOWARD
DIR
OE
$278,373
16,679
---
6/1/23
---
$16.69
159,618
11.7
D
---
6/5/23 - 4:18:06 pm
44
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$16,692
378
---
5/19/23
---
$44.16
104,770
-0.4
D
R,10b
5/22/23 - 6:49:13 pm
45
1y
38
45%
7%
2
PETERS WILLIAM J
CFO,VP,TR,DIR
OS
$465,675
10,500
---
5/18/23
---
$44.35
105,148
-9.1
D
R,10b
5/22/23 - 6:49:13 pm
46
    
 
PETERS WILLIAM J
CFO,VP,TR,DIR
OE
$140,175
10,500
---
5/18/23
---
$13.35
115,648
10.0
D
R,10b
5/22/23 - 6:49:13 pm
47
1y
17
47%
18%
1
ZHOU RONG
VP
OS
$442,050
10,000
---
5/18/23
---
$44.20
87,598
-10.2
D
---
5/19/23 - 6:36:25 pm
48
    
 
ZHOU RONG
VP
OE
$144,000
10,000
---
5/18/23
---
$14.40
97,598
11.4
D
---
5/19/23 - 6:36:25 pm
49
    
 
DEFLIN GAYLE
DIR
S
$198,888
4,519
---
5/18/23
---
$44.01
4,163
-52.1
D
---
5/19/23 - 6:30:35 pm
50
1y
36
39%
12%
1
PETERSEN FLOYD F
DIR
S
$215,655
5,000
---
5/17/23
---
$43.13
80,117
-5.9
D
---
5/18/23 - 4:52:35 pm
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