PRINS RICHARD K

AMPH

PRINS RICHARD K serves as director at Amphastar Pharmaceuticals, Inc. (AMPH). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

17 trades

$4.17M

Net Position

Net Seller

$4.17M

Companies Traded

AMPH, IGC

Active Period

Mar 2021 – Aug 2026

17 total trades

Most Recent

Sell AMPH

Aug 12, 2026 · $161.9K

PRINS RICHARD K's Insider Trading at Amphastar Pharmaceuticals, Inc. (AMPH)

Buys

0 · $0.00

Sells

15 · $4.00M

Total Shares Bought

Total Shares Sold

115,534

AMPH Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 12, 2026	Sell	7,973	$20.30	$161.9K	29,625
Nov 25, 2025	Sell	4,179	$27.10	$113.3K	0
Dec 9, 2024	Sell	10,000	$43.77	$437.7K	0
Nov 12, 2024	Sell	5,000	$48.80	$244.0K	0
Aug 12, 2024	Sell	17,101	$43.07	$736.5K	0
Nov 17, 2023	Sell	4,000	$55.86	$223.4K	0
Nov 13, 2023	Sell	5,000	$52.50	$262.5K	0
Aug 18, 2023	Sell	2,000	$52.50	$105.0K	0
Aug 15, 2023	Sell	4,163	$57.39	$238.9K	0
May 12, 2023	Sell	10,000	$42.78	$427.8K	0
Mar 15, 2022	Sell	10,000	$34.02	$340.2K	0
Dec 10, 2021	Sell	5,291	$21.36	$113.0K	0
Nov 22, 2021	Sell	5,000	$21.22	$106.1K	0
Jun 4, 2021	Sell	10,000	$18.74	$187.4K	0
May 11, 2021	Sell	15,827	$18.90	$299.1K	0

PRINS RICHARD K's Insider Trading at IGC Pharma, Inc. (IGC)

Buys

0 · $0.00

Sells

2 · $177.5K

Total Shares Bought

Total Shares Sold

100,000

IGC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 10, 2021	Sell	50,000	$1.75	$87.5K	620,000
Mar 8, 2021	Sell	50,000	$1.80	$90.0K	719,500

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