William J Peters is CFO, EVP & TREASURER of Amphastar Pharmaceuticals, Inc.. Currently has a direct ownership of 125,258 shares of AMPH, which is worth approximately $3.54 Million. The most recent transaction as insider was on Jun 15, 2023, when has been sold 36,868 shares (Common Stock) at a price of $19.79 per share, resulting in proceeds of $729,617. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 125K
33.11% 3M change
28.27% 12M change
Total Value Held $3.54 Million

WILLIAM J PETERS Transaction History

Date Transaction Value Shares Traded Shares Held Form
Jun 15 2023
BUY
Exercise of conversion of derivative security
$729,617 $19.79 p/Share
36,868 Added 20.56%
142,471 Common Stock
Jun 02 2023
SELL
Open market or private sale
$509,850 $46.35 p/Share
11,000 Reduced 9.43%
105,603 Common Stock
Jun 02 2023
BUY
Exercise of conversion of derivative security
$146,850 $13.35 p/Share
11,000 Added 8.62%
116,603 Common Stock
May 19 2023
SELL
Payment of exercise price or tax liability
$16,692 $44.16 p/Share
378 Reduced 0.36%
104,770 Common Stock
May 18 2023
SELL
Open market or private sale
$465,675 $44.35 p/Share
10,500 Reduced 9.08%
105,148 Common Stock
May 18 2023
BUY
Exercise of conversion of derivative security
$140,175 $13.35 p/Share
10,500 Added 8.32%
115,648 Common Stock
Apr 17 2023
SELL
Open market or private sale
$238,515 $42.35 p/Share
5,632 Reduced 5.08%
105,148 Common Stock
Apr 17 2023
BUY
Exercise of conversion of derivative security
$75,187 $13.35 p/Share
5,632 Added 4.84%
110,780 Common Stock
Apr 13 2023
SELL
Open market or private sale
$206,159 $42.35 p/Share
4,868 Reduced 4.42%
105,148 Common Stock
Apr 13 2023
BUY
Exercise of conversion of derivative security
$64,987 $13.35 p/Share
4,868 Added 4.24%
110,016 Common Stock
Apr 10 2023
SELL
Open market or private sale
$404,791 $40.35 p/Share
10,032 Reduced 8.71%
105,148 Common Stock
Apr 10 2023
BUY
Exercise of conversion of derivative security
$133,927 $13.35 p/Share
10,032 Added 8.01%
115,180 Common Stock
Mar 17 2023
SELL
Payment of exercise price or tax liability
$151,038 $36.29 p/Share
4,162 Reduced 3.81%
105,148 Common Stock
Mar 16 2023
SELL
Payment of exercise price or tax liability
$187,812 $37.6 p/Share
4,995 Reduced 4.37%
109,310 Common Stock
Mar 15 2023
SELL
Open market or private sale
$465,429 $36.43 p/Share
12,776 Reduced 9.74%
118,451 Common Stock
Mar 15 2023
SELL
Payment of exercise price or tax liability
$152,738 $36.84 p/Share
4,146 Reduced 3.5%
114,305 Common Stock
Mar 15 2023
BUY
Exercise of conversion of derivative security
$99,985 $14.95 p/Share
6,688 Added 4.85%
131,227 Common Stock
Mar 06 2023
BUY
Grant, award, or other acquisition
-
23,925 Added 16.12%
124,539 Common Stock
Mar 01 2023
SELL
Open market or private sale
$398,685 $36.33 p/Share
10,974 Reduced 9.83%
100,614 Common Stock
Mar 01 2023
BUY
Exercise of conversion of derivative security
$124,335 $11.33 p/Share
10,974 Added 8.95%
111,588 Common Stock
Aug 09 2022
SELL
Open market or private sale
$383,500 $38.35 p/Share
10,000 Reduced 9.05%
100,480 Common Stock
Aug 09 2022
BUY
Exercise of conversion of derivative security
$133,500 $13.35 p/Share
10,000 Added 8.3%
110,480 Common Stock
Jun 30 2022
SELL
Open market or private sale
$642,591 $34.95 p/Share
18,386 Reduced 15.47%
100,480 Common Stock
Jun 30 2022
BUY
Exercise of conversion of derivative security
$274,871 $14.95 p/Share
18,386 Added 13.4%
118,866 Common Stock
Jun 17 2022
SELL
Open market or private sale
$176,660 $32.05 p/Share
5,512 Reduced 5.2%
100,480 Common Stock
WJP

William J Peters

CFO, EVP & TREASURER
Rancho Cucamonga, CA

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