Amphastar Pharmaceuticals, Inc
Veridion Score
Composite trend over time
Why is AMPH moving today?
Amphastar Pharmaceuticals Inc is a bio-pharmaceutical company focusing on developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, as well as insulin active pharmaceutical ingredient (or insulin API products. The company's finished products are used in hospital or urgent care clinical settings and are contracted and distributed through group purchasing organizations and drug wholesalers. The company has one reportable segment: pharmaceutical products. Geographically, the business presence of the firm is seen in the United States, China, and France, of which the U.S. accounts for the majority of the revenue.
Reported fields plus Veridion-computed history. Unsourced tiles are omitted.
Warehouse intelligence for AMPH.
AMPH insider activity
Amphastar Pharmaceuticals, Inc
No multi-insider buying cluster in the last 90 days
Net selling: -$1.9M across loaded Form 4 rows.
Loaded official disclosures do not show all three sources aligned on this ticker.
| Filing date | Trade date | Insider | Title | Type | Price | Qty | Owned | Value | Receipt |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-03 | 2026-06-02 | Lee Howard | Insider | sell | $18.45 | 769 | 159,350 | $14K | SEC Form 4 |
| 2026-03-17 | 2026-03-15 | Liawatidewi Yakob | Insider | sell | $18.18 | 1,033 | 121,892 | $19K | SEC Form 4 |
| 2026-03-17 | 2026-03-15 | Zhou Rong | Insider | sell | $18.18 | 1,225 | 171,554 | $22K | SEC Form 4 |
| 2026-03-17 | 2026-03-15 | Luo Mary Z. | Insider | sell | $18.18 | 2,908 | 1,245,125 | $53K | SEC Form 4 |
| 2026-03-17 | 2026-03-15 | Luo Mary Z. | Insider | sell | $18.18 | 9,784 | 2,990,052 | $178K | SEC Form 4 |
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Public federal awards linked to this ticker.
AMPH lobbying filings, year to date.
Registered lobbying filings matched to Amphastar Pharmaceuticals, Inc.