Amphastar Pharmaceuticals (AMPH)

International Medication Systems, Limited • Amphastar Medication Co., LLC • Armstrong Pharmaceuticals, Inc. • Amphastar Nanjing Pharmaceuticals, Inc. • Amphastar France Pharmaceuticals, S.A.S. • Amphastar UK Limited • International Medication Systems (UK) Limited ...

AMPH stock data

1M 3M 6M 1Y

Analyst ratings and price targets

Last 3 months

Latest filings (excl ownership)

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3 Mar 25

Amphastar Pharmaceuticals Reports Financial Results for the Three Months and Full Year Ended December 31, 2024

7 Nov 24

Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended September 30, 2024

6 Nov 24

8-K

Entry into a Material Definitive Agreement

9 Aug 24

Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended June 30, 2024

7 Aug 24

8-K

Amphastar Announces Additional $50 Million Increase to its Share Buyback Program

4 Jun 24

8-K

Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended March 31, 2024

8 May 24

DEFA14A

Additional proxy soliciting materials

19 Apr 24

Transcripts

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AMPH

Earnings call transcript

2024 Q4

27 Feb 25

AMPH

Earnings call transcript

2024 Q3

6 Nov 24

AMPH

Earnings call transcript

2024 Q2

7 Aug 24

AMPH

Earnings call transcript

2024 Q1

8 May 24

AMPH

Earnings call transcript

2023 Q4

28 Feb 24

AMPH

Earnings call transcript

2023 Q3

8 Nov 23

AMPH

Earnings call transcript

2023 Q2

8 Aug 23

AMPH

Earnings call transcript

2023 Q2

8 Aug 23

AMPH

Earnings call transcript

2023 Q1

9 May 23

AMPH

Earnings call transcript

2022 Q4

28 Feb 23

Latest ownership filings

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Financial summary

Financial statements Chart AMPH financial data

Quarter (USD)	Dec 24	Sep 24	Jun 24	Dec 23
Revenue
Cost of revenue
Operating income
Operating margin
Net income
Net profit margin
Cash on hand
Change in cash
Diluted EPS

Annual (USD)	Dec 24	Dec 23	Dec 22	Dec 21
Revenue
Cost of revenue
Operating income
Operating margin
Net income
Net profit margin
Cash on hand
Change in cash
Diluted EPS

Cash burn rate (est.)	Burn method: Change in cash		Burn method: Operating income		Burn method: FCF (opex + capex)
	Last Q	Avg 4Q	Last Q	Avg 4Q	Last Q	Avg 4Q
Cash on hand (at last report)	151.84 mm	151.84 mm	151.84 mm	151.84 mm	151.84 mm	151.84 mm
Cash burn (monthly)	13.50 mm	9.93 mm	(no burn)	(no burn)	(no burn)	(no burn)
Cash used (since last report)	38.41 mm	28.26 mm	n/a	n/a	n/a	n/a
Cash remaining	113.43 mm	123.59 mm	n/a	n/a	n/a	n/a
Runway (months of cash)	8.4	12.4	n/a	n/a	n/a	n/a

Beta Read what these cash burn values mean

Financial data from company earnings reports.

Institutional ownership, Q4 2024

AMPH institutional ownership history Ownership history

88.6% owned by funds/institutions

13F holders	Current	Prev Q	Change
Total holders	262	274	-4.4%
Opened positions	39	41	-4.9%
Closed positions	51	34	+50.0%
Increased positions	84	97	-13.4%
Reduced positions	99	93	+6.5%

13F shares	Current	Prev Q	Change
Total value	1.27 tn	1.63 tn	-22.2%
Total shares	42.24 mm	42.06 mm	+0.4%
Total puts	7.90 k	22.30 k	-64.6%
Total calls	26.50 k	74.30 k	-64.3%
Total put/call ratio	0.3	0.3	-0.7%

Largest owners	Shares	Value	Change
Jack Y. Zhang	6.83 mm	$248.32 mm	0.0%
BlackRock	6.12 mm	$227.15 bn	+1.4%
Vanguard	2.71 mm	$100.79 bn	+0.1%
TD Asset Management	1.84 mm	$68.33 bn	-13.8%
STT State Street	1.60 mm	$59.26 bn	+4.3%
Neuberger Berman	1.37 mm	$51.02 bn	-14.9%
Pacer Advisors	1.35 mm	$50.14 bn	+51977.4%
Dimensional Fund Advisors	1.20 mm	$44.50 bn	+9.6%
Fuller & Thaler Asset Management	1.13 mm	$42.07 bn	-10.1%
Epoch Investment Partners	1.10 mm	$40.89 bn	-7.5%

Largest transactions	Shares	Bought/sold	Change
Pacer Advisors	1.35 mm	+1.35 mm	+51977.4%
FHI Federated Hermes	823.49 k	-1.12 mm	-57.7%
Boston Trust Walden	978.92 k	+439.28 k	+81.4%
Boston Partners	426.64 k	+426.64 k	NEW
Boone Capital Management	0.00	-316.56 k	EXIT
TD Asset Management	1.84 mm	-294.75 k	-13.8%
Wealthfront Advisers	249.61 k	+249.61 k	NEW
Systematic Financial Management	246.35 k	+246.35 k	NEW
Neuberger Berman	1.37 mm	-240.96 k	-14.9%
Portolan Capital Management	131.12 k	-196.64 k	-60.0%

Data from 13F filings, for the last complete 13F reporting period. For most recent data, click the ownership history button. Values as filed, not updated for current price. Long positions only.

Recent insider trades

AMPH insider ownership history Insider history

Date	Owner	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
17 Mar 25	Peters William J	Common Stock	Payment of exercise	Dispose F	No	No	27.69	3,004	83.18 k	125,258
17 Mar 25	Liawatidewi Yakob	Common Stock	Payment of exercise	Dispose F	No	No	27.69	1,731	47.93 k	90,909
17 Mar 25	Zhou Rong	Common Srock	Payment of exercise	Dispose F	No	No	27.69	1,967	54.47 k	137,497
17 Mar 25	Jack Y. Zhang	Common Stock	Payment of exercise	Dispose F	Yes	No	27.69	7,223	200.00 k	1,185,475
17 Mar 25	Jack Y. Zhang	Common Stock	Payment of exercise	Dispose F	No	No	27.69	16,150	447.19 k	2,647,659
15 Mar 25	Peters William J	Common Stock	Payment of exercise	Dispose F	No	No	26.66	1,968	52.47 k	128,262
15 Mar 25	Liawatidewi Yakob	Common Stock	Payment of exercise	Dispose F	No	No	26.66	1,031	27.49 k	92,640
15 Mar 25	Zhou Rong	Common Stock	Payment of exercise	Dispose F	No	No	26.66	1,222	32.58 k	139,464
15 Mar 25	Jack Y. Zhang	Common Stock	Payment of exercise	Dispose F	Yes	No	26.66	4,115	109.71 k	1,192,698
15 Mar 25	Jack Y. Zhang	Common Stock	Payment of exercise	Dispose F	No	No	26.66	9,765	260.33 k	2,663,809