Rong Zhou Amphastar Pharmaceuticals, Inc. (AMPH) insider trading activity

Rong Zhou is SENIOR EVP, PRODUCTION CENTER of Amphastar Pharmaceuticals, Inc.. Currently has a direct ownership of 138,043 shares of AMPH, which is worth approximately $3.6 Million. The most recent transaction as insider was on Aug 02, 2021, when has been sold 6,000 shares (Common Stock) at a price of $10.48 per share, resulting in proceeds of $62,880. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 138K

0.4% 3M change

16.52% 12M change

Total Value Held $3.6 Million

Rong Zhou Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 02 2021	BUY Exercise of conversion of derivative security	$62,880 $10.48 p/Share	6,000 Added 6.11%	92,244 Common Stock
Jul 26 2021	SELL Open market or private sale	$125,220 $20.87 p/Share	6,000 Reduced 6.5%	86,244 Common Stock
Jul 26 2021	BUY Exercise of conversion of derivative security	$62,880 $10.48 p/Share	6,000 Added 6.11%	92,244 Common Stock
Jul 20 2021	SELL Open market or private sale	$106,697 $20.57 p/Share	5,187 Reduced 5.67%	86,244 Common Stock
Jul 20 2021	BUY Exercise of conversion of derivative security	$54,360 $10.48 p/Share	5,187 Added 5.37%	91,431 Common Stock
Jun 09 2021	SELL Open market or private sale	$92,653 $19.58 p/Share	4,732 Reduced 5.2%	86,244 Common Stock
Jun 08 2021	SELL Open market or private sale	$158,201 $19.34 p/Share	8,180 Reduced 8.25%	90,976 Common Stock

Jun 08 2021	BUY Exercise of conversion of derivative security	$116,401 $14.23 p/Share	8,180 Added 7.62%	99,156 Common Stock
May 14 2021	SELL Open market or private sale	$343,503 $19.72 p/Share	17,419 Reduced 16.22%	89,966 Common Stock
May 14 2021	BUY Exercise of conversion of derivative security	$158,238 $14.23 p/Share	11,120 Added 9.38%	107,385 Common Stock
May 13 2021	SELL Open market or private sale	$13,706 $19.58 p/Share	700 Reduced 0.72%	96,265 Common Stock
May 13 2021	BUY Exercise of conversion of derivative security	$9,961 $14.23 p/Share	700 Added 0.72%	96,965 Common Stock
Mar 17 2021	BUY Grant, award, or other acquisition	-	21,984 Added 18.59%	96,265 Common Stock
Mar 16 2021	SELL Payment of exercise price or tax liability	$60,907 $18.44 p/Share	3,303 Reduced 4.26%	74,281 Common Stock
Mar 15 2021	SELL Payment of exercise price or tax liability	$31,636 $19.15 p/Share	1,652 Reduced 2.08%	77,584 Common Stock

Rong Zhou

SENIOR EVP, PRODUCTION CENTER

Rancho Cucamonga, CA

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