Form 4: SI-BONE Director Executes Sell-to-Cover Transaction

Director Jeffrey W. Dunn sold 337 shares of SI-BONE, Inc. to satisfy tax withholding obligations related to restricted stock unit vesting.

Summary

• Director Jeffrey W. Dunn sold 337 shares of SI-BONE common stock on May 4, 2026.
• The shares were sold at a weighted average price of $13.1508 per share.
• The transaction was a mandatory 'sell to cover' to satisfy tax withholding obligations upon the vesting of restricted stock units.
• Following the transaction, the director maintains direct ownership of 9,157 shares and indirect ownership of 80,591 shares via a living trust.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the transaction is purely administrative and mandatory for tax purposes.

Positives

• The transaction was non-discretionary and specifically executed to cover tax liabilities, indicating no change in the director's long-term outlook on the company.

Negatives

• The sale represents a reduction in direct shareholdings, though the impact is negligible.

Risks

• None identified; this is a routine administrative transaction.

Future Outlook

Not applicable as this is a routine insider transaction filing.

Industry Context

StockSavvy.ai notes that 'sell to cover' transactions are standard corporate governance practices for executives and directors to manage tax obligations arising from equity compensation plans and do not typically signal a change in corporate strategy or market sentiment.

Comparison to Industry Standards

• The transaction aligns with standard industry practices for executive compensation management.
• The use of a 10b5-1 style sell-to-cover mechanism is consistent with best practices for public company directors.

Related Party Transactions

• Transfer of shares to The Jeffrey W. Dunn Living Trust.

Stakeholder Impact

• Minimal impact on shareholders as the transaction was non-discretionary.

Key Dates

Keywords

SI-BONE, SIBN, Insider Trading, Form 4, Director Transaction, Tax Withholding