Jack Y. Zhang
Known title: CEO & Chief Scientific OfficerCIK: 0001611157
Associated companies
Transaction History
| AMPH | ▼ Sell | Tax Withholding | 9,784 | $178K | 3/15/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 2,908 | $53K | 3/15/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 14,785 | $280K | 3/10/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 4,395 | $83K | 3/10/2026 | View on chart |
| AMPH | ▲ Buy | Grant | 180,504 | $0 | 3/9/2026 | View on chart |
| AMPH | ▲ Buy | Grant | 72,462 | $0 | 3/9/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,773 | $150K | 3/6/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 3,077 | $60K | 3/6/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 5,769 | $115K | 3/4/2026 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 2,432 | $49K | 3/4/2026 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 200,000 | $2.6M | 6/13/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 16,150 | $447K | 3/17/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,223 | $200K | 3/17/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 9,765 | $260K | 3/15/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 4,115 | $110K | 3/15/2025 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 290,477 | $4.3M | 3/14/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 226,285 | $6.0M | 3/14/2025 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 211,213 | $3.1M | 3/14/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 162,657 | $4.3M | 3/14/2025 | View on chart |
| AMPH | ▲ Buy | Grant | 116,226 | $0 | 3/10/2025 | View on chart |
| AMPH | ▲ Buy | Grant | 48,996 | $0 | 3/10/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 9,645 | $273K | 3/6/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 3,069 | $87K | 3/6/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 5,753 | $159K | 3/4/2025 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 2,426 | $67K | 3/4/2025 | View on chart |
| AMPH | ▼ Sell | Gift | 125,000 | $0 | 11/11/2024 | View on chart |
| AMPH | ▼ Sell | Gift | 125,000 | $0 | 11/11/2024 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 100,000 | $1.5M | 9/13/2024 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 100,000 | $1.5M | 6/10/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 15,768 | $679K | 3/17/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,052 | $304K | 3/17/2024 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 722,046 | $9.0M | 3/15/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 408,721 | $17.6M | 3/15/2024 | View on chart |
| AMPH | ▲ Buy | Option Exercise | 310,930 | $3.9M | 3/15/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 202,658 | $8.7M | 3/15/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,031 | $326K | 3/6/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 2,990 | $138K | 3/6/2024 | View on chart |
| AMPH | ▲ Buy | Grant | 27,110 | $0 | 3/4/2024 | View on chart |
| AMPH | ▲ Buy | Grant | 64,310 | $0 | 3/4/2024 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,052 | $256K | 3/17/2023 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 15,768 | $572K | 3/17/2023 | View on chart |
| AMPH | ▼ Sell | Gift | 57,365 | $0 | 3/16/2023 | View on chart |
| AMPH | ▼ Sell | Gift | 57,365 | $0 | 3/16/2023 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 9,998 | $376K | 3/16/2023 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 25,241 | $949K | 3/16/2023 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 2,803 | $103K | 3/15/2023 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 8,434 | $311K | 3/15/2023 | View on chart |
| AMPH | ▲ Buy | Grant | 81,383 | $0 | 3/6/2023 | View on chart |
| AMPH | ▲ Buy | Grant | 34,301 | $0 | 3/6/2023 | View on chart |
| AMPH | ▼ Sell | Open Market | 10,650 | $364K | 5/20/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 41,615 | $1.4M | 5/19/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 115 | $4K | 5/19/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 2,006 | $72K | 5/18/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 9,776 | $340K | 5/18/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 55,264 | $1.9M | 5/18/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 47,539 | $1.7M | 5/17/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 2,837 | $103K | 5/17/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 13,795 | $502K | 5/16/2022 | View on chart |
| AMPH | ▼ Sell | Open Market | 54,274 | $1.9M | 5/16/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 15,768 | $539K | 3/17/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 7,052 | $241K | 3/17/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 25,241 | $864K | 3/16/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 10,426 | $357K | 3/16/2022 | View on chart |
| AMPH | ▲ Buy | Grant | 76,914 | $0 | 3/15/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 14,759 | $513K | 3/15/2022 | View on chart |
| AMPH | ▲ Buy | Grant | 32,412 | $0 | 3/15/2022 | View on chart |
| AMPH | ▼ Sell | Tax Withholding | 4,786 | $166K | 3/15/2022 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 15, 2026
Amphastar (AMPH) Cited as Safe-and-Steady Stock in Yahoo Analysis
A recent Yahoo Finance article highlighted Amphastar Pharmaceuticals as a 'safe-and-steady' stock worth researching further. This positive framing contrasts with other companies facing challenges, suggesting the market views AMPH as a relatively stable option. The stock currently trades with a trailing P/E of 14.2, which is lower than the average analyst target price of $22.50.
Amphastar (AMPH) Cited as Safe-and-Steady Stock in Yahoo Analysis. A recent Yahoo Finance article highlighted Amphastar Pharmaceuticals as a 'safe-and-steady' stock worth researching further. This positive framing contrasts with other companies facing challenges, suggesting the market views AMPH as a relatively stable option. The stock currently trades with a trailing P/E of 14.2, which is lower than the average analyst target price of $22.50.