Form 4: 89bio Chief Medical Officer Sells Shares for Tax Obligations

Harry H. Mansbach, Chief Medical Officer of 89bio, Inc., reported the disposition of 8,498 shares of common stock at $9.62 per share to cover tax withholding obligations related to restricted stock unit vesting.

Summary

• Harry H. Mansbach, the Chief Medical Officer of 89bio, Inc. (ETNB), filed a Form 4 with the SEC.
• The filing reports a transaction on June 12, 2025, where 8,498 shares of 89bio, Inc. common stock were disposed of.
• These shares were sold at a price of $9.62 per share.
• The disposition was a non-discretionary transaction (Transaction Code 'F'), specifically for covering estimated tax withholding obligations related to the vesting of restricted stock units.
• Following this transaction, Mr. Mansbach beneficially owns 310,336 shares of 89bio, Inc. common stock.

Sentiment

Score: 5

Explanation: The transaction is a routine, non-discretionary sale for tax purposes related to equity compensation vesting, which typically has a neutral impact on sentiment as it does not reflect a change in management's confidence in the company.

Future Outlook

NA

Industry Context

This Form 4 filing is a routine disclosure of an insider transaction and does not provide information relevant to broader industry trends or competitor analysis. It reflects a standard tax-related share disposition common across publicly traded companies when restricted stock units vest for executives.

Stakeholder Impact

• Shareholders: Minimal direct impact as this is a routine, non-discretionary tax-related sale by an insider, not indicative of a change in confidence.
• Employees: No direct impact mentioned.
• Customers: No direct impact mentioned.
• Suppliers: No direct impact mentioned.
• Creditors: No direct impact mentioned.

Key Dates

Keywords

89bio, ETNB, Form 4, Insider Transaction, Stock Sale, Tax Withholding, Restricted Stock Units, Chief Medical Officer, Harry H. Mansbach