RICHARD K PRINS Insider Trading $AMPH Amphastar Pharmaceuticals, Inc.

FREE EMAIL WATCHDOG

Get free email notifications about insider trading for RICHARD K PRINS.

Your email is safe with us.
The service is free and you can unsubscribe at any time.

General | Insider Transactions | Monthly Overview

Get the latest insider transactions of RICHARD K PRINS. RICHARD K PRINS is Director in Amphastar Pharmaceuticals, Inc. ($AMPH) and Director in India Globalization Capital, Inc. ($IGC).

RICHARD K PRINS in Amphastar Pharmaceuticals, Inc.

Trading Symbol: AMPH
Industry: PHARMACEUTICAL PREPARATIONS [2834]
Position of RICHARD K PRINS: Director
Holdings: 54,987 shares
Current Value: $869,344
Latest Transaction: May 13 2021
$AMPH Market Capitalization: $764.90M
$AMPH Previous Close: $15.81

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD

Latest Insider Trading Transactions of RICHARD K PRINS in Amphastar Pharmaceuticals, Inc.

	1 Week	2 Weeks	1 Month	3 Months	6 Months	1 Year	2 Years
No. of Purchases	0	0	0	0	0	0	0
Value of Purchases ($)	0	0	0	0	0	0	0
No. of Sales	0	0	0	0	0	0	0
Value of Sales ($)	0	0	0	0	0	0	0

Sentiment: All, AMPH, IGC

Page: 1

Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
May 13 2021	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	16.43	15,827	260,038	10,000
May 13 2021	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	18.90	15,827	299,110	39,160	55 K to 39.2 K (-28.78 %)
May 13 2021	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	16.43	15,827	260,038	54,987	39.2 K to 55 K (+40.42 %)
Aug 12 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.33	6,000	121,976	39,160	45.2 K to 39.2 K (-13.29 %)
Jun 09 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	20.08	16,004	321,360	16,004
Jun 09 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	5,851	0	45,160	39.3 K to 45.2 K (+14.88 %)
May 14 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	15.11	30,282	457,561	0
May 14 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	19.00	30,282	575,419	39,309	69.6 K to 39.3 K (-43.51 %)
May 14 2020	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.11	30,282	457,561	69,591	39.3 K to 69.6 K (+77.04 %)
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	15.11	3,618	54,668	30,282
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	15.11	3,882	58,657	33,900
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	22.60	3,618	81,767	39,309	42.9 K to 39.3 K (-8.43 %)
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.11	3,618	54,668	42,927	39.3 K to 42.9 K (+9.20 %)
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	22.58	3,882	87,654	39,309	43.2 K to 39.3 K (-8.99 %)
Aug 27 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.11	3,882	58,657	43,191	39.3 K to 43.2 K (+9.88 %)
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	15.11	10,000	151,100	37,782
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	15.11	10,000	151,100	37,782
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.78	10,000	207,781	39,309	49.3 K to 39.3 K (-20.28 %)
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.78	10,000	207,781	39,309	49.3 K to 39.3 K (-20.28 %)
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.11	10,000	151,100	49,309	39.3 K to 49.3 K (+25.44 %)
Aug 15 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.11	10,000	151,100	49,309	39.3 K to 49.3 K (+25.44 %)
Jun 13 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	20.03	13,915	278,717	13,915
Jun 13 2019	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	5,491	0	39,309	33.8 K to 39.3 K (+16.24 %)
Dec 17 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.65	1,616	33,370	33,818	35.4 K to 33.8 K (-4.56 %)
Dec 17 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.65	1,616	33,370	33,818	35.4 K to 33.8 K (-4.56 %)
Nov 30 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.66	5,000	73,300	0
Nov 30 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.50	5,000	102,500	35,434	40.4 K to 35.4 K (-12.37 %)
Nov 30 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.66	5,000	73,300	40,434	35.4 K to 40.4 K (+14.11 %)
Nov 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.66	5,000	73,300	5,000
Nov 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.23	5,000	101,167	35,434	40.4 K to 35.4 K (-12.37 %)
Nov 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.66	5,000	73,300	40,434	35.4 K to 40.4 K (+14.11 %)
Aug 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.66	10,000	146,600	10,000
Aug 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	17.82	10,000	178,180	35,434	45.4 K to 35.4 K (-22.01 %)
Aug 15 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.66	10,000	146,600	45,434	35.4 K to 45.4 K (+28.22 %)
Jun 11 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	16.69	16,679	278,373	16,679
Jun 11 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	6,590	0	35,434	28.8 K to 35.4 K (+22.85 %)
Mar 16 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.66	16,598	243,327	20,000
Mar 16 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	19.90	16,598	330,318	28,844	45.4 K to 28.8 K (-36.53 %)
Mar 16 2018	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.66	16,598	243,327	45,442	28.8 K to 45.4 K (+57.54 %)
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	5,000	53,850	0
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	5,000	53,850	5,000
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.82	5,000	74,087	28,844	33.8 K to 28.8 K (-14.77 %)
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	5,000	53,850	33,844	28.8 K to 33.8 K (+17.33 %)
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.80	5,000	73,997	28,844	33.8 K to 28.8 K (-14.77 %)
Aug 16 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	5,000	53,850	33,844	28.8 K to 33.8 K (+17.33 %)
Jun 12 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	10,000	107,700	10,000
Jun 12 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	17.11	20,291	347,179	20,291
Jun 12 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	17.07	10,000	170,707	28,844	38.8 K to 28.8 K (-25.74 %)
Jun 12 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	10,000	107,700	38,844	28.8 K to 38.8 K (+34.67 %)
Jun 12 2017	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	5,844	0	28,844	23 K to 28.8 K (+25.41 %)
Nov 15 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	5,000	53,850	27,500
Nov 15 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	20.06	8,000	160,501	23,000	31 K to 23 K (-25.81 %)
Nov 15 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	5,000	53,850	31,000	26 K to 31 K (+19.23 %)
Aug 19 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	19.62	3,086	60,539	26,000	29.1 K to 26 K (-10.61 %)
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	7,500	80,775	32,500
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.23	3,898	55,469	0
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	2.60	2,595	6,734	0
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	18.03	13,993	252,274	29,086	43.1 K to 29.1 K (-32.48 %)
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	7,500	80,775	43,079	35.6 K to 43.1 K (+21.08 %)
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.23	3,898	55,469	35,579	31.7 K to 35.6 K (+12.30 %)
Aug 12 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	15.23	2,595	39,522	31,681	29.1 K to 31.7 K (+8.92 %)
Jun 13 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	14.23	7,500	106,725	3,898
Jun 13 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	16.43	25,827	424,338	25,827
Jun 13 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	15.94	7,500	119,536	29,086	36.6 K to 29.1 K (-20.50 %)
Jun 13 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	14.23	7,500	106,725	36,586	29.1 K to 36.6 K (+25.79 %)
Jun 13 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	6,086	0	29,086	23 K to 29.1 K (+26.46 %)
May 19 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	13.56	3,200	43,391	23,000	26.2 K to 23 K (-12.21 %)
Mar 21 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	11.25	2,400	27,000	26,200	28.6 K to 26.2 K (-8.39 %)
Feb 03 2016	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Gift	G	0.00	350	0	28,600	29 K to 28.6 K (-1.21 %)
Nov 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	13.95	3,772	52,606	28,950	32.7 K to 29 K (-11.53 %)
Nov 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Gift	G	0.00	3,000	0	32,722	35.7 K to 32.7 K (-8.40 %)
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	2,100	22,617	40,000
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	5,400	58,158	42,100
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.66	9,100	133,395	35,722	44.8 K to 35.7 K (-20.30 %)
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	2,100	22,617	44,822	42.7 K to 44.8 K (+4.92 %)
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.70	5,400	79,384	42,722	48.1 K to 42.7 K (-11.22 %)
Aug 19 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	5,400	58,158	48,122	42.7 K to 48.1 K (+12.64 %)
May 29 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	A	15.11	47,782	721,986	47,782
May 29 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Grant	A	0.00	8,686	0	42,722	34 K to 42.7 K (+25.52 %)
May 29 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Gift	G	0.00	2,015	0	34,036	36.1 K to 34 K (-5.59 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	1,942	20,915	47,500
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	10.77	1,664	17,921	49,442
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	11.68	11,901	139,004	0
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	11.68	13,945	162,878	11,901
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.76	1,942	28,654	36,051	38 K to 36.1 K (-5.11 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	10.77	1,942	20,915	37,993	36.1 K to 38 K (+5.39 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.76	13,565	200,179	36,051	49.6 K to 36.1 K (-27.34 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	M	10.77	1,664	17,921	49,616	51.3 K to 49.6 K (-3.24 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	11.68	11,901	139,004	47,952	36.1 K to 48 K (+33.01 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.79	13,945	206,252	36,051	50 K to 36.1 K (-27.89 %)
May 22 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	11.68	13,945	162,878	49,996	36.1 K to 50 K (+38.68 %)
May 20 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Option Exercise	M	11.68	3,000	35,040	25,846
May 20 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Sell	S	14.94	3,000	44,825	36,051	39.1 K to 36.1 K (-7.68 %)
May 20 2015	AMPH	Amphastar Pharmace ...	PRINS RICHARD K	Director	Buy	M	11.68	3,000	35,040	39,051	36.1 K to 39.1 K (+8.32 %)

Page: 1