Amphastar Pharmaceuticals, Inc. (AMPH)
Healthcare · NMS
Price as at 2 Oct 2026, 03:46 UTC. Quotes are delayed.
Fundamentals
Valuation and ratings
Amphastar Pharmaceuticals, Inc. trades at $25.35, which is 32% above the $17.33 our fair value estimate puts on the business. On that measure it screens as expensive, which is not the same as saying it will fall.
Our moat model scores it 43 out of 100, which is little in the way of a moat. A moat is a structural reason competitors cannot take the profits away, and it matters more to a long holding period than any single quarter's numbers do.
It changes hands at 12.0 times earnings. Be careful reading that in isolation: for a cyclical business a low P/E arrives at the top of the cycle, when profits are peaking and about to fall, which is exactly when the shares look cheapest and are not.
AMPH earnings and analyst estimates
Recommendation mix, 7 published ratings
Estimates are the published analyst consensus and move often. An earnings date is scheduled, not certain, and a share tends to reprice most violently on the day itself.
About Amphastar Pharmaceuticals, Inc.
Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. It offers BAQSIMI, a dry nasal spray used in an emergency for the treatment of severe hypoglycemia; Primatene MIST, an epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Glucagon for injection emergency kit; Enoxaparin, an injectable form of low molecular weight heparin for the prevention and treatment of deep vein thrombosis; and REXTOVY and Naloxone for opioid overdose. The company also provides Cortrosyn, a lyophilized power for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency; Amphadase, a bovine-sourced hyaluronidase injection; Epinephrine injection for allergic reactions; Lidocaine jelly, an anesthetic product for urological procedures; Lidocaine topical solution for various procedures; Phytonadione injection, a vitamin K1 injection for newborn babies; and emergency syringe products, including atropine, calcium chloride, dextrose, epinephrine, lidocaine, and sodium bicarbonate. In addition, it offers Albuterol sulfate inhalation aerosol for the treatment or prevention of bronchospasm; Iron sucrose injection, an iron replacement product for the treatment of iron deficiency anemia in patients with chronic kidney disease; Teriparatide injection for managing daily osteoporosis therapy; and Ipratropium Bromide HFA inhalation aerosol, an anticholinergic indicated for the maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease. Further, the company provides active pharmaceutical ingredient (API) products, such as Recombinant Human Insulin and porcine insulin API. The company was founded in 1996 and is headquartered in Rancho Cucamonga, California.
Company profile, industry and headcount are as reported by our data provider and can lag a company's own filings by a reporting period. The annual report is the authority.
AMPH passes 2 of our 30 screens today
Each screen prints the exact criteria it used, and the circumstances in which it is wrong.
Super investor ownership
10 of the funds we track reported a position in their latest SEC 13F filing. Largest first:
- Marshall Wace, MARSHALL WACE, LLP$21.52M · 0.0% of book
- D. E. Shaw, D. E. Shaw & Co., Inc.$17.90M · 0.0% of book
- Renaissance Technologies, RENAISSANCE TECHNOLOGIES LLC$10.60M · 0.0% of book
- Two Sigma, TWO SIGMA INVESTMENTS, LP$5.01M · 0.0% of book
- Cliff Asness, AQR CAPITAL MANAGEMENT LLC$4.21M · 0.0% of book
A word of warning on reading these figures: a 13F reports the market value of a holding, so a fund that traded nothing at all still appears to have sold when the price fell. We found 102 companies where the standard reading gives the opposite answer. Only the share count is honest.
AMPH peers
The largest companies in the same industry (Drug Manufacturers - Specialty & Generic), then in the same sector.
- TKPHF Takeda Pharmaceutical Company Limited
- GALDY Galderma Group AG
- JHPCY JHPCY
- HLNCF Haleon plc
- TEVA Teva Pharmaceutical Industries Limited
- UTHR United Therapeutics Corporation
- VTRS Viatris Inc.
- NBIX Neurocrine Biosciences, Inc.
Every healthcare company we cover is on the Healthcare hub.
Common questions
Is Amphastar Pharmaceuticals, Inc. (AMPH) undervalued?
Against our fair value estimate of $17.33, AMPH at $25.35 is 32% above fair value. That is one model's answer, not a recommendation. It is built from normalized earning power with growth capped deliberately low, which understates companies whose value is mostly future growth.
Which funds own AMPH?
10 of the institutions we track reported a position in AMPH in their most recent SEC 13F filing. A 13F is filed up to 45 days after quarter end, so it tells you what a fund held then, not what it holds now.
What is AMPH's P/E ratio?
AMPH trades at 12.0 times earnings. A low P/E is not automatically cheap: on a cyclical company it is usually a warning that earnings are at a peak.
Where does SteadyShares get its AMPH data?
Fundamentals for AMPH come from company filings and exchange data, as listed on NMS; institutional ownership comes from SEC 13F filings. The share price shown was last refreshed on 2 Oct 2026, 03:46 UTC and is delayed. Our data quality score for this company is 96/100, which is the share of the inputs behind our scores that were actually available rather than assumed. Metrics we do not hold are left out of the page rather than estimated.
The full research page for AMPH, with financial statements, ownership detail, peer comparison and alerts, is free inside the app.
Data from company filings, exchange quotes and SEC EDGAR 13F disclosures. Quotes are delayed. Metrics we do not have are left out rather than estimated. Educational information, not financial advice.