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 04
2021
|
Richard K Prins |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+10.17%
|
$80,000
$16.43 P/Share
|
|
Jun 03
2021
|
Floyd F. Petersen |
SELL
Open market or private sale
|
Direct |
10,000
-12.0%
|
$180,000
$18.65 P/Share
|
|
Jun 03
2021
|
Floyd F. Petersen |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+10.71%
|
$160,000
$16.43 P/Share
|
|
Jun 01
2021
|
Richard Koo Director |
SELL
Open market or private sale
|
Direct |
25,827
-9.25%
|
$490,713
$19.28 P/Share
|
|
Jun 01
2021
|
Richard Koo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
25,827
+8.47%
|
$413,232
$16.43 P/Share
|
|
May 20
2021
|
Howard Lee |
SELL
Open market or private sale
|
Direct |
10,000
-7.0%
|
$190,000
$19.74 P/Share
|
|
May 20
2021
|
Howard Lee |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+6.54%
|
$160,000
$16.43 P/Share
|
|
May 19
2021
|
William J Peters CFO, EVP & TREASURER |
BUY
Grant, award, or other acquisition
|
Direct |
3,047
+2.66%
|
-
|
|
May 17
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
9,637
-15.25%
|
$183,103
$19.99 P/Share
|
|
May 17
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
9,637
+13.23%
|
$106,007
$11.33 P/Share
|
|
May 14
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
3,186
-5.61%
|
$60,534
$19.92 P/Share
|
|
May 14
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
17,419
-16.22%
|
$330,961
$19.72 P/Share
|
|
May 14
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
11,120
+9.38%
|
$155,680
$14.23 P/Share
|
|
May 13
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Open market or private sale
|
Direct |
700
-0.72%
|
$13,300
$19.58 P/Share
|
|
May 13
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
700
+0.72%
|
$9,800
$14.23 P/Share
|
|
May 13
2021
|
Michael A Zasloff |
SELL
Open market or private sale
|
Direct |
25,827
-38.54%
|
$490,713
$19.34 P/Share
|
|
May 13
2021
|
Michael A Zasloff |
BUY
Exercise of conversion of derivative security
|
Direct |
25,827
+27.82%
|
$413,232
$16.43 P/Share
|
|
May 12
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
4,592
-7.48%
|
$87,248
$19.33 P/Share
|
|
May 11
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Open market or private sale
|
Direct |
10,000
-14.02%
|
$190,000
$19.06 P/Share
|
|
May 11
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+12.29%
|
$110,000
$11.33 P/Share
|
|
May 11
2021
|
Richard K Prins |
SELL
Open market or private sale
|
Direct |
15,827
-28.78%
|
$284,886
$18.9 P/Share
|
|
May 11
2021
|
Richard K Prins |
BUY
Exercise of conversion of derivative security
|
Direct |
15,827
+22.35%
|
$253,232
$16.43 P/Share
|
|
Mar 17
2021
|
William J Peters CFO, EVP & TREASURER |
BUY
Grant, award, or other acquisition
|
Direct |
33,574
+23.66%
|
-
|
|
Mar 17
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
21,984
+18.59%
|
-
|
|
Mar 17
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
BUY
Grant, award, or other acquisition
|
Direct |
19,344
+23.97%
|
-
|
|
Mar 17
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Indirect |
56,892
+3.68%
|
-
|
|
Mar 17
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
BUY
Grant, award, or other acquisition
|
Direct |
127,209
+5.2%
|
-
|
|
Mar 16
2021
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
6,398
-7.89%
|
$115,164
$18.44 P/Share
|
|
Mar 16
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
3,303
-4.26%
|
$59,454
$18.44 P/Share
|
|
Mar 16
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
2,430
-5.47%
|
$43,740
$18.44 P/Share
|
|
Mar 16
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
8,890
-0.62%
|
$160,020
$18.44 P/Share
|
|
Mar 16
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
25,241
-1.14%
|
$454,338
$18.44 P/Share
|
|
Mar 15
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Indirect |
9,592
-0.66%
|
$182,248
$19.15 P/Share
|
|
Mar 15
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
28,088
-1.25%
|
$533,672
$19.15 P/Share
|
|
Mar 15
2021
|
William J Peters CFO, EVP & TREASURER |
SELL
Payment of exercise price or tax liability
|
Direct |
4,178
-98.1%
|
$79,382
$19.15 P/Share
|
|
Mar 15
2021
|
William J Peters CFO, EVP & TREASURER |
SELL
Open market or private sale
|
Direct |
4,244
-4.74%
|
$80,636
$19.03 P/Share
|
|
Mar 15
2021
|
Rong Zhou SENIOR EVP, PRODUCTION CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,652
-2.08%
|
$31,388
$19.15 P/Share
|
|
Mar 15
2021
|
Yakob Liawatidewi EVP CORP ADMIN CENTER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,559
-3.39%
|
$29,621
$19.15 P/Share
|
|
Feb 18
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
407
-0.01%
|
$7,326
$18.58 P/Share
|
|
Feb 17
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
13,801
-0.2%
|
$248,418
$18.67 P/Share
|
|
Feb 16
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
16,259
-0.24%
|
$292,662
$18.51 P/Share
|
|
Feb 12
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
13,277
-0.19%
|
$238,986
$18.94 P/Share
|
|
Feb 11
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
19,823
-0.29%
|
$376,637
$19.06 P/Share
|
|
Feb 10
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
15,747
-0.23%
|
$283,446
$18.76 P/Share
|
|
Feb 09
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
11,927
-0.17%
|
$214,686
$18.93 P/Share
|
|
Feb 08
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
13,452
-0.19%
|
$242,136
$18.89 P/Share
|
|
Feb 05
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
15,507
-0.22%
|
$279,126
$18.94 P/Share
|
|
Feb 04
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
25,570
-0.37%
|
$460,260
$18.89 P/Share
|
|
Feb 03
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
16,299
-0.23%
|
$293,382
$18.36 P/Share
|
|
Feb 02
2021
|
Jack Y. Zhang CEO & CHIEF SCIENTIFIC OFFICER |
SELL
Open market or private sale
|
Indirect |
13,817
-0.2%
|
$248,706
$18.66 P/Share
|