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 |
|---|---|---|---|---|---|
|
May 16
2022
|
Michael A Zasloff |
BUY
Exercise of conversion of derivative security
|
Direct |
10,291
+15.18%
|
$174,947
$17.11 P/Share
|
|
May 02
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
295
-0.19%
|
$10,325
$35.34 P/Share
|
|
Apr 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.33%
|
$18,000
$36.97 P/Share
|
|
Mar 17
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
7,052
-0.47%
|
$239,768
$34.18 P/Share
|
|
Mar 17
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
15,768
-0.67%
|
$536,112
$34.18 P/Share
|
|
Mar 17
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,162
-3.81%
|
$141,508
$34.18 P/Share
|
|
Mar 17
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,447
-3.06%
|
$83,198
$34.18 P/Share
|
|
Mar 17
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,673
-2.68%
|
$56,882
$34.18 P/Share
|
|
Mar 16
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
10,426
-0.69%
|
$354,484
$34.22 P/Share
|
|
Mar 16
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
25,241
-1.06%
|
$858,194
$34.22 P/Share
|
|
Mar 16
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,995
-4.38%
|
$169,830
$34.22 P/Share
|
|
Mar 16
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
50,777
-15.85%
|
$1,726,418
$34.15 P/Share
|
|
Mar 16
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
50,777
+23.54%
|
$710,878
$14.4 P/Share
|
|
Mar 16
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,283
-2.77%
|
$77,622
$34.22 P/Share
|
|
Mar 16
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,619
-2.53%
|
$55,046
$34.22 P/Share
|
|
Mar 16
2022
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
10,000
-17.48%
|
$330,000
$33.71 P/Share
|
|
Mar 16
2022
|
Michael A Zasloff |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+14.88%
|
$170,000
$17.11 P/Share
|
|
Mar 15
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
4,786
-0.31%
|
$162,724
$34.74 P/Share
|
|
Mar 15
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Indirect |
32,412
+2.09%
|
-
|
|
Mar 15
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
14,759
-0.62%
|
$501,806
$34.74 P/Share
|
|
Mar 15
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Direct |
76,914
+3.11%
|
-
|
|
Mar 15
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,652
-1.97%
|
$56,168
$34.74 P/Share
|
|
Mar 15
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
13,658
+13.99%
|
-
|
|
Mar 15
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,559
-2.38%
|
$53,006
$34.74 P/Share
|
|
Mar 15
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
11,514
+14.93%
|
-
|
|
Mar 15
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
5,989
-4.99%
|
$203,626
$34.74 P/Share
|
|
Mar 15
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Grant, award, or other acquisition
|
Direct |
21,991
+15.47%
|
-
|
|
Mar 15
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
7,900
-7.45%
|
$268,600
$34.46 P/Share
|
|
Mar 15
2022
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
10,000
-18.12%
|
$340,000
$34.02 P/Share
|
|
Mar 15
2022
|
Richard K Prins |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+15.34%
|
$170,000
$17.11 P/Share
|
|
Mar 07
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
13,026
-10.94%
|
$377,754
$29.35 P/Share
|
|
Mar 07
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
13,026
+9.86%
|
$169,338
$13.35 P/Share
|
|
Mar 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.65%
|
$13,500
$27.27 P/Share
|
|
Feb 25
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
23,000
-9.35%
|
$644,000
$28.45 P/Share
|
|
Feb 25
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
23,000
+15.13%
|
$322,000
$14.95 P/Share
|
|
Feb 25
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
13,246
-15.85%
|
$370,888
$28.77 P/Share
|
|
Feb 25
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
7,000
+7.73%
|
$70,000
$10.93 P/Share
|
|
Feb 08
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,000
-8.62%
|
$260,000
$26.95 P/Share
|
|
Feb 08
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+7.93%
|
$140,000
$14.95 P/Share
|
|
Feb 08
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
7,000
-8.38%
|
$182,000
$26.77 P/Share
|
|
Feb 08
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
7,000
+7.73%
|
$70,000
$10.93 P/Share
|
|
Feb 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.32%
|
$11,500
$23.81 P/Share
|
|
Jan 10
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
20,928
-11.38%
|
$523,200
$25.37 P/Share
|
|
Jan 10
2022
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
14,000
+12.56%
|
$140,000
$10.93 P/Share
|
|
Jan 10
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
16,000
-13.11%
|
$400,000
$25.4 P/Share
|
|
Jan 10
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
16,000
+11.59%
|
$224,000
$14.4 P/Share
|
|
Jan 07
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
31,776
-12.25%
|
$762,624
$24.53 P/Share
|
|
Jan 07
2022
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
31,776
+18.74%
|
$444,864
$14.4 P/Share
|
|
Jan 03
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.64%
|
$11,500
$23.22 P/Share
|
|
Dec 30
2021
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,000
-8.62%
|
$230,000
$23.4 P/Share
|