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 |
|---|---|---|---|---|---|
|
Jun 10
2022
|
Michael A Zasloff |
BUY
Grant, award, or other acquisition
|
Direct |
4,163
+7.5%
|
-
|
|
Jun 06
2022
|
Howard Lee |
SELL
Open market or private sale
|
Direct |
10,291
-6.9%
|
$380,767
$37.79 P/Share
|
|
Jun 06
2022
|
Howard Lee |
BUY
Exercise of conversion of derivative security
|
Direct |
10,291
+6.46%
|
$174,947
$17.11 P/Share
|
|
Jun 04
2022
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
264
-0.43%
|
$9,768
$37.77 P/Share
|
|
Jun 01
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.29%
|
$18,500
$37.23 P/Share
|
|
May 23
2022
|
Howard Lee |
SELL
Open market or private sale
|
Direct |
10,000
-6.72%
|
$340,000
$34.93 P/Share
|
|
May 23
2022
|
Howard Lee |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+6.3%
|
$170,000
$17.11 P/Share
|
|
May 20
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Direct |
10,650
-0.5%
|
$362,100
$34.21 P/Share
|
|
May 19
2022
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
378
-0.36%
|
$12,474
$33.7 P/Share
|
|
May 19
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Direct |
41,730
-0.97%
|
$1,418,820
$34.02 P/Share
|
|
May 18
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Direct |
67,046
-1.01%
|
$2,279,564
$34.84 P/Share
|
|
May 18
2022
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
9,924
-10.3%
|
$347,340
$35.05 P/Share
|
|
May 18
2022
|
Floyd F. Petersen |
BUY
Exercise of conversion of derivative security
|
Direct |
20,291
+17.39%
|
$344,947
$17.11 P/Share
|
|
May 17
2022
|
Richard K Prins |
SELL
Bona fide gift
|
Direct |
2,000
-4.43%
|
-
|
|
May 17
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Direct |
50,376
-1.11%
|
$1,763,160
$35.94 P/Share
|
|
May 16
2022
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Direct |
68,069
-1.46%
|
$2,382,415
$36.0 P/Share
|
|
May 16
2022
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
10,291
-17.9%
|
$360,185
$35.61 P/Share
|
|
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
|