Form 4: Amphastar Pharmaceuticals Executive Zhou Rong Reports Stock Disposals to Cover Tax Obligations

Senior EVP Zhou Rong of Amphastar Pharmaceuticals reports disposing of shares to cover tax liabilities related to vesting restricted stock units.

Summary

• On March 15, 2025, Zhou Rong, Senior EVP of Production Center at Amphastar Pharmaceuticals, disposed of 1,222 shares of common stock at a price of $26.66 to cover tax liabilities.
• Following this transaction, Zhou Rong directly owns 139,464 shares.
• On March 17, 2025, Zhou Rong disposed of 1,967 shares of common stock at a price of $27.69 to cover tax liabilities.
• Following this transaction, Zhou Rong directly owns 137,497 shares.
• Zhou Rong also indirectly owns 99,668 shares through the Zhou Family Trust and 5,000 shares held by their spouse.

Sentiment

Score: 5

Explanation: Neutral sentiment as the filing simply reports stock disposals for tax purposes, a routine activity.

Industry Context

Executive stock transactions are a common occurrence in publicly traded companies, often related to compensation and tax planning. These transactions are closely watched by investors for insights into management's perspective on the company's value and future prospects.

Comparison to Industry Standards

• Executive stock sales to cover tax obligations are a standard practice across the pharmaceutical industry.
• Comparing the percentage of shares sold to total holdings with peers like Teva Pharmaceuticals or Mylan (now Viatris) would provide context on the magnitude of this transaction.
• Similar transactions are routinely disclosed by executives at companies like Pfizer and Johnson & Johnson.

Stakeholder Impact

• The stock disposal may have a minor impact on shareholders due to the increased supply of shares in the market, but the effect is likely minimal given the relatively small number of shares involved.

Key Dates