Insiders · Profile

Zhang Jack Y.

CEO & Chief Scientific Officer at Amphastar Pharmaceuticals. Filing since 5 Jun 2015. CIK 0001611157

Company
Date
Role
Action
Shares
Amount
Of holding
20 May 2022
CEO & Chief Scientific Officer
Sold, plan not stated
10,650
$364.37K
0.5%
19 May 2022
CEO & Chief Scientific Officer
Sold, plan not stated
41,730
$1.41M
1.9%
18 May 2022
CEO & Chief Scientific Officer
Sold, plan not stated
67,046
$2.29M
3.0%
17 May 2022
CEO & Chief Scientific Officer
Sold, plan not stated
50,376
$1.80M
2.2%
16 May 2022
CEO & Chief Scientific Officer
Sold, plan not stated
68,069
$2.43M
2.9%
18 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
407
$7.56K
0.0%
17 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
13,801
$257.72K
0.2%
16 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
16,259
$301.03K
0.2%
12 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
13,277
$251.52K
0.2%
11 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
19,823
$377.88K
0.3%
10 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
15,747
$295.34K
0.2%
9 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
11,927
$225.78K
0.2%
8 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
13,452
$254.05K
0.2%
5 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
15,507
$293.72K
0.2%
4 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
25,570
$483.02K
0.4%
3 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
16,299
$299.32K
0.2%
2 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
13,817
$257.82K
0.2%
1 Feb 2021
CEO & Chief Scientific Officer
Sold, plan not stated
24,114
$441.12K
0.3%
11 Sep 2019
CEO & Chief Scientific Officer
Sold, plan not stated
300,000
$6.25M
4.1%
14 Dec 2018
CEO & Chief Scientific Officer
Sold, plan not stated
43,577
$892.31K
2.1%
13 Dec 2018
CEO & Chief Scientific Officer
Sold, plan not stated
29,689
$623.17K
0.4%
12 Dec 2018
CEO & Chief Scientific Officer
Sold, plan not stated
37,469
$794.74K
0.5%
11 Dec 2018
CEO & Chief Scientific Officer
Sold, plan not stated
66,757
$1.43M
0.9%
16 May 2018
CEO & Chief Scientific Officer
Bought
15,000
$240.85K
0.7%
15 May 2018
CEO & Chief Scientific Officer
Bought
25,000
$401.97K
1.2%
21 Sep 2016
CEO & Chief Science Officer
Sold, plan not stated
55,081
$1.14M
4.8%
20 Sep 2016
CEO & Chief Science Officer
Sold, plan not stated
207,350
$4.38M
16.0%
20 Sep 2016
CEO & Chief Science Officer
Sold, plan not stated
181,768
$3.83M
19.5%
11 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
15,066
$211.74K
0.2%
10 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
21,915
$313.88K
0.3%
9 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
26,319
$376.13K
0.3%
8 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
24,359
$353.12K
0.3%
7 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
15,046
$219.49K
0.2%
4 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
28,712
$429.30K
0.4%
3 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
18,583
$286.46K
0.2%
1 Dec 2015
CEO & Chief Science Officer
Sold, plan not stated
20,000
$309.78K
0.3%
15 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
45,382
$739.45K
4.7%
12 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
75,618
$1.22M
7.6%
12 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
38,471
$621.97K
5.5%
11 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
11,664
$192.09K
1.7%
11 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
11,600
$191.05K
1.3%
10 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
11,731
$192.14K
1.3%
10 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
11,411
$186.82K
1.7%
9 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
25,700
$417.25K
2.7%
9 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
25,800
$415.97K
3.7%
8 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
27,100
$450.10K
3.9%
8 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
27,020
$448.91K
2.9%
5 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
44,149
$726.88K
4.6%
5 Jun 2015
CEO & Chief Science Officer
Sold, plan not stated
43,989
$724.31K
6.2%
49 decisions on file.