Latest Insider Transactions at Amphastar Pharmaceuticals, Inc. (AMPH)
This section provides a real-time view of insider transactions for Amphastar Pharmaceuticals, Inc. (AMPH). The data is sourced from Form 4 filings with the SEC, which are filed by insiders of Amphastar Pharmaceuticals, Inc. to disclose their transactions in the company's securities. By reviewing this information, investors can gain insights into the trading activity of Amphastar Pharmaceuticals, Inc.'s insiders and make more informed investment decisions.
Insider Transaction List
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Mar 16
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Bona fide gift
|
Indirect |
114,730
-100.0%
|
-
|
|
Mar 16
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,995
-4.37%
|
$184,815
$37.6 P/Share
|
|
Mar 15
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,851
-2.49%
|
$66,636
$36.84 P/Share
|
|
Mar 15
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
2,803
-0.18%
|
$100,908
$36.84 P/Share
|
|
Mar 15
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
8,434
-0.39%
|
$303,624
$36.84 P/Share
|
|
Mar 15
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,146
-3.5%
|
$149,256
$36.84 P/Share
|
|
Mar 15
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
12,776
-9.74%
|
$459,936
$36.43 P/Share
|
|
Mar 15
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
6,688
+4.85%
|
$93,632
$14.95 P/Share
|
|
Mar 15
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,057
-2.19%
|
$74,052
$36.84 P/Share
|
|
Mar 06
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Grant, award, or other acquisition
|
Direct |
23,925
+16.12%
|
-
|
|
Mar 06
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Indirect |
34,301
+2.19%
|
-
|
|
Mar 06
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Direct |
81,383
+3.59%
|
-
|
|
Mar 06
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
15,129
+13.88%
|
-
|
|
Mar 06
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
12,752
+14.64%
|
-
|
|
Mar 01
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,974
-9.83%
|
$395,064
$36.33 P/Share
|
|
Mar 01
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,974
+8.95%
|
$120,714
$11.33 P/Share
|
|
Mar 01
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.19%
|
$17,500
$35.85 P/Share
|
|
Feb 01
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.58%
|
$15,000
$30.35 P/Share
|
|
Jan 03
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.57%
|
$13,500
$27.94 P/Share
|
|
Dec 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.57%
|
$15,000
$30.13 P/Share
|
|
Nov 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.57%
|
$15,500
$31.13 P/Share
|
|
Oct 03
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.56%
|
$14,000
$28.59 P/Share
|
|
Sep 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.56%
|
$14,500
$29.44 P/Share
|
|
Aug 09
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,000
-9.05%
|
$380,000
$38.35 P/Share
|
|
Aug 09
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+8.3%
|
$130,000
$13.35 P/Share
|
|
Aug 09
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
3,055
-4.72%
|
$119,145
$39.0 P/Share
|
|
Aug 09
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
3,055
+4.51%
|
$58,045
$19.79 P/Share
|
|
Aug 08
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
5,000
-7.51%
|
$190,000
$38.0 P/Share
|
|
Aug 08
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+6.98%
|
$95,000
$19.79 P/Share
|
|
Aug 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.56%
|
$18,500
$37.48 P/Share
|
|
Jul 18
2022
|
Diane G. Gerst |
SELL
Open market or private sale
|
Direct |
1,520
-10.58%
|
$56,240
$37.23 P/Share
|
|
Jul 18
2022
|
Diane G. Gerst |
BUY
Exercise of conversion of derivative security
|
Direct |
1,520
+9.57%
|
$30,400
$20.08 P/Share
|
|
Jul 15
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
10,837
-7.74%
|
$390,132
$36.46 P/Share
|
|
Jul 15
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,837
+13.01%
|
$205,903
$19.79 P/Share
|
|
Jul 11
2022
|
Diane G. Gerst |
SELL
Open market or private sale
|
Direct |
1,521
-10.59%
|
$54,756
$36.26 P/Share
|
|
Jul 11
2022
|
Diane G. Gerst |
BUY
Exercise of conversion of derivative security
|
Direct |
1,521
+9.58%
|
$30,420
$20.08 P/Share
|
|
Jul 05
2022
|
Diane G. Gerst |
SELL
Open market or private sale
|
Direct |
1,813
-12.37%
|
$63,455
$35.0 P/Share
|
|
Jul 05
2022
|
Diane G. Gerst |
BUY
Exercise of conversion of derivative security
|
Direct |
1,813
+11.01%
|
$36,260
$20.08 P/Share
|
|
Jul 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.55%
|
$17,000
$34.78 P/Share
|
|
Jun 30
2022
|
Diane G. Gerst |
SELL
Open market or private sale
|
Direct |
5,146
-28.61%
|
$180,110
$35.0 P/Share
|
|
Jun 30
2022
|
Diane G. Gerst |
BUY
Exercise of conversion of derivative security
|
Direct |
5,146
+13.12%
|
$102,920
$20.06 P/Share
|
|
Jun 30
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
18,386
-15.47%
|
$625,124
$34.95 P/Share
|
|
Jun 30
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
18,386
+13.4%
|
$257,404
$14.95 P/Share
|
|
Jun 17
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
5,512
-5.2%
|
$176,384
$32.05 P/Share
|
|
Jun 14
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
128
-0.21%
|
$3,968
$31.02 P/Share
|
|
Jun 10
2022
|
Gayle Deflin |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+29.02%
|
-
|
|
Jun 10
2022
|
Diane G. Gerst |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+24.48%
|
-
|
|
Jun 10
2022
|
Howard Lee |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+2.83%
|
-
|
|
Jun 10
2022
|
Floyd F. Petersen |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+4.42%
|
-
|
|
Jun 10
2022
|
Richard K Prins |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+8.08%
|
-
|