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 15
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
36,868
-9.49%
|
$1,843,400
$50.79 P/Share
|
|
Jun 15
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
36,868
+20.56%
|
$700,492
$19.79 P/Share
|
|
Jun 13
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
5,000
-5.36%
|
$240,000
$48.24 P/Share
|
|
Jun 13
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+5.09%
|
$70,000
$14.4 P/Share
|
|
Jun 10
2023
|
Howard Lee |
SELL
Payment of exercise price or tax liability
|
Direct |
375
-0.26%
|
$16,875
$45.67 P/Share
|
|
Jun 05
2023
|
Floyd F. Petersen |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+3.17%
|
-
|
|
Jun 05
2023
|
Richard K Prins |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+5.46%
|
-
|
|
Jun 05
2023
|
Diane G. Gerst |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+14.86%
|
-
|
|
Jun 05
2023
|
Michael A Zasloff |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+5.51%
|
-
|
|
Jun 05
2023
|
Gayle Deflin |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+28.31%
|
-
|
|
Jun 05
2023
|
Howard Lee |
BUY
Grant, award, or other acquisition
|
Direct |
2,716
+1.83%
|
-
|
|
Jun 04
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
378
-0.54%
|
$17,388
$46.7 P/Share
|
|
Jun 02
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
11,000
-9.43%
|
$506,000
$46.35 P/Share
|
|
Jun 02
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
11,000
+8.62%
|
$143,000
$13.35 P/Share
|
|
Jun 01
2023
|
Howard Lee |
SELL
Open market or private sale
|
Direct |
16,679
-10.45%
|
$750,555
$45.02 P/Share
|
|
Jun 01
2023
|
Howard Lee |
BUY
Exercise of conversion of derivative security
|
Direct |
16,679
+9.46%
|
$266,864
$16.69 P/Share
|
|
May 19
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
378
-0.36%
|
$16,632
$44.16 P/Share
|
|
May 18
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,500
-9.08%
|
$462,000
$44.35 P/Share
|
|
May 18
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,500
+8.32%
|
$136,500
$13.35 P/Share
|
|
May 18
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
10,000
-10.25%
|
$440,000
$44.2 P/Share
|
|
May 18
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+9.29%
|
$140,000
$14.4 P/Share
|
|
May 18
2023
|
Gayle Deflin |
SELL
Open market or private sale
|
Direct |
4,519
-52.05%
|
$198,836
$44.01 P/Share
|
|
May 17
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
5,000
-5.87%
|
$215,000
$43.13 P/Share
|
|
May 15
2023
|
Gayle Deflin |
SELL
Open market or private sale
|
Direct |
1,500
-14.73%
|
$64,500
$43.15 P/Share
|
|
May 15
2023
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
7,500
-14.6%
|
$315,000
$42.18 P/Share
|
|
May 15
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
5,000
-10.13%
|
$215,000
$43.5 P/Share
|
|
May 15
2023
|
Richard K Prins |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+9.2%
|
$80,000
$16.69 P/Share
|
|
May 12
2023
|
Richard K Prins |
SELL
Bona fide gift
|
Direct |
3,000
-6.34%
|
-
|
|
May 12
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
5,000
-9.55%
|
$210,000
$42.06 P/Share
|
|
May 12
2023
|
Richard K Prins |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+8.72%
|
$80,000
$16.69 P/Share
|
|
Apr 17
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
5,632
-5.08%
|
$236,544
$42.35 P/Share
|
|
Apr 17
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
5,632
+4.84%
|
$73,216
$13.35 P/Share
|
|
Apr 13
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
11,494
-7.39%
|
$471,254
$41.5 P/Share
|
|
Apr 13
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
11,494
+12.47%
|
$229,880
$20.23 P/Share
|
|
Apr 13
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
4,868
-4.42%
|
$204,456
$42.35 P/Share
|
|
Apr 13
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
4,868
+4.24%
|
$63,284
$13.35 P/Share
|
|
Apr 10
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
10,032
-8.71%
|
$401,280
$40.35 P/Share
|
|
Apr 10
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,032
+8.01%
|
$130,416
$13.35 P/Share
|
|
Apr 10
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
5,000
-6.74%
|
$200,000
$40.0 P/Share
|
|
Apr 10
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+6.31%
|
$100,000
$20.23 P/Share
|
|
Apr 03
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
491
-0.57%
|
$18,167
$37.72 P/Share
|
|
Mar 17
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,901
-2.12%
|
$68,436
$36.29 P/Share
|
|
Mar 17
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,673
-2.36%
|
$60,228
$36.29 P/Share
|
|
Mar 17
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
7,052
-0.48%
|
$253,872
$36.29 P/Share
|
|
Mar 17
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
15,768
-0.75%
|
$567,648
$36.29 P/Share
|
|
Mar 17
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,162
-3.81%
|
$149,832
$36.29 P/Share
|
|
Mar 16
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,283
-2.49%
|
$84,471
$37.6 P/Share
|
|
Mar 16
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,620
-2.23%
|
$59,940
$37.6 P/Share
|
|
Mar 16
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
9,998
-0.68%
|
$369,926
$37.6 P/Share
|
|
Mar 16
2023
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
25,241
-1.19%
|
$933,917
$37.6 P/Share
|