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
2024
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
5,105
-4.77%
|
$219,515
$43.05 P/Share
|
|
Mar 15
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
202,658
-14.08%
|
$8,714,294
$43.05 P/Share
|
|
Mar 15
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Exercise of conversion of derivative security
|
Indirect |
310,930
+17.76%
|
$3,731,160
$12.46 P/Share
|
|
Mar 15
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
408,721
-14.3%
|
$17,575,003
$43.05 P/Share
|
|
Mar 15
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
722,046
+20.17%
|
$8,664,552
$12.46 P/Share
|
|
Mar 15
2024
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,219
-0.99%
|
$52,417
$43.05 P/Share
|
|
Mar 15
2024
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,027
-1.3%
|
$44,161
$43.05 P/Share
|
|
Mar 15
2024
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,285
-2.09%
|
$98,255
$43.05 P/Share
|
|
Mar 06
2024
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,190
-1.96%
|
$100,740
$46.31 P/Share
|
|
Mar 06
2024
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
18,136
-4.8%
|
$852,392
$47.09 P/Share
|
|
Mar 06
2024
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
8,826
+6.37%
|
$97,086
$11.33 P/Share
|
|
Mar 06
2024
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,390
-1.11%
|
$63,940
$46.31 P/Share
|
|
Mar 06
2024
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,221
-1.52%
|
$56,166
$46.31 P/Share
|
|
Mar 06
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
2,990
-0.26%
|
$137,540
$46.31 P/Share
|
|
Mar 06
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
7,031
-0.33%
|
$323,426
$46.31 P/Share
|
|
Mar 05
2024
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
12,500
-20.24%
|
$587,500
$47.3 P/Share
|
|
Mar 04
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Indirect |
27,110
+2.34%
|
-
|
|
Mar 04
2024
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Direct |
64,310
+2.91%
|
-
|
|
Mar 04
2024
|
William J Peters CFO, EVP & TREASURER |
BUY
Grant, award, or other acquisition
|
Direct |
19,440
+13.86%
|
-
|
|
Mar 04
2024
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
12,521
+9.11%
|
-
|
|
Mar 04
2024
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
10,754
+11.79%
|
-
|
|
Mar 01
2024
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.31%
|
$23,000
$46.06 P/Share
|
|
Feb 01
2024
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.31%
|
$26,500
$53.36 P/Share
|
|
Jan 10
2024
|
Mary Z. Luo COO,Chief Scientist & Chairman |
SELL
Open market or private sale
|
Direct |
131,386
-2.73%
|
$7,226,230
$55.54 P/Share
|
|
Jan 09
2024
|
Mary Z. Luo COO,Chief Scientist & Chairman |
SELL
Open market or private sale
|
Direct |
86,156
-2.21%
|
$4,910,892
$57.58 P/Share
|
|
Jan 08
2024
|
Mary Z. Luo COO,Chief Scientist & Chairman |
SELL
Open market or private sale
|
Direct |
133,644
-1.36%
|
$8,018,640
$60.1 P/Share
|
|
Jan 02
2024
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.31%
|
$30,500
$61.13 P/Share
|
|
Dec 04
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
3,514
-3.03%
|
$207,326
$59.58 P/Share
|
|
Dec 04
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
3,514
+2.94%
|
$56,224
$16.19 P/Share
|
|
Dec 01
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
4,316
-3.7%
|
$250,328
$58.58 P/Share
|
|
Dec 01
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
4,316
+3.57%
|
$60,424
$14.4 P/Share
|
|
Dec 01
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.31%
|
$28,500
$57.7 P/Share
|
|
Nov 17
2023
|
Richard K Prins |
SELL
Bona fide gift
|
Direct |
1,000
-3.14%
|
-
|
|
Nov 17
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
4,000
-11.14%
|
$220,000
$55.86 P/Share
|
|
Nov 14
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
59,250
-14.08%
|
$3,258,750
$55.65 P/Share
|
|
Nov 14
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
59,250
+16.95%
|
$948,000
$16.63 P/Share
|
|
Nov 14
2023
|
Gayle Deflin |
SELL
Open market or private sale
|
Direct |
4,163
-60.52%
|
$228,965
$55.45 P/Share
|
|
Nov 13
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
5,000
-12.23%
|
$260,000
$52.5 P/Share
|
|
Nov 01
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.61%
|
$22,500
$45.3 P/Share
|
|
Oct 02
2023
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
500
-0.6%
|
$22,500
$45.78 P/Share
|
|
Sep 06
2023
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
60,743
-18.75%
|
$3,158,636
$52.0 P/Share
|
|
Sep 06
2023
|
William J Peters CFO, EVP & TREASURER |
BUY
Exercise of conversion of derivative security
|
Direct |
56,500
+11.63%
|
$960,500
$17.68 P/Share
|
|
Aug 28
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
28,816
-29.26%
|
$1,527,248
$53.13 P/Share
|
|
Aug 28
2023
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
28,816
+9.26%
|
$461,056
$16.74 P/Share
|
|
Aug 18
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
2,000
-4.66%
|
$104,000
$52.5 P/Share
|
|
Aug 15
2023
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
4,163
-8.85%
|
$237,291
$57.39 P/Share
|
|
Aug 15
2023
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
12,759
-27.39%
|
$727,263
$57.22 P/Share
|
|
Jun 20
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
9,651
+7.91%
|
$106,161
$11.33 P/Share
|
|
Jun 15
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
19,377
+5.75%
|
$290,655
$15.18 P/Share
|
|
Jun 15
2023
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
5,000
-4.91%
|
$255,000
$51.79 P/Share
|