Form 4: Kirby CEO Grzebinski Reports Future Stock Transactions

Kirby Corporation CEO David W. Grzebinski reported planned future transactions involving the vesting of restricted stock units and a related tax withholding, effective January 24, 2026.

Summary

• David W. Grzebinski, CEO and Director of Kirby Corp (KEX), reported planned transactions for January 24, 2026.
• These transactions are pursuant to a Rule 10b5-1 plan, indicating they are pre-scheduled.
• Grzebinski is set to acquire 8,150 shares of common stock through the exercise/conversion of restricted stock units (RSUs) at a price of $0.
• Concurrently, 3,244 shares of common stock will be disposed of at a price of $128.7 per share to cover tax liabilities related to the RSU vesting.
• Following these transactions, Grzebinski will directly own 84,615 shares of Kirby Corp common stock.
• The restricted stock units were originally granted on January 29, 2021, and vest in five equal annual installments, with this transaction representing a scheduled vesting event.

Sentiment

Score: 5

Explanation: The filing reports routine, pre-planned insider transactions related to executive compensation (RSU vesting and tax-related sale). These are neutral events that do not indicate positive or negative operational performance or strategic shifts for the company.

Positives

• The vesting of 8,150 restricted stock units indicates a retention and incentive mechanism for the CEO, aligning management interests with shareholder value.
• The transactions are pre-planned under a Rule 10b5-1 plan, which demonstrates transparency and adherence to insider trading regulations.

Negatives

• A portion of the acquired shares (3,244 shares) will be sold to cover tax liabilities, which is a common practice but results in a reduction of the net shares retained by the CEO from this vesting event.

Future Outlook

This filing details pre-planned future transactions under a Rule 10b5-1 plan, specifically the vesting of restricted stock units and a subsequent tax-related sale, scheduled for January 24, 2026. It does not provide broader forward-looking statements or guidance on company performance.

Industry Context

This Form 4 filing reports routine insider transactions related to equity compensation. Such filings are common across all industries for publicly traded companies, reflecting standard practices for executive compensation and compliance with SEC regulations. It does not provide specific insights into Kirby Corp's operational performance or industry trends beyond the fact that it operates a compensation structure involving restricted stock units.

Comparison to Industry Standards

• The use of restricted stock units (RSUs) as a component of executive compensation is a standard practice across many industries, including the marine transportation and industrial services sectors where Kirby Corp operates.
• The disposition of shares to cover tax liabilities upon RSU vesting (a "sell-to-cover" transaction) is also a common and accepted practice for executives receiving equity awards, aligning with typical compensation and tax planning strategies observed in comparable companies.
• The execution of these transactions under a Rule 10b5-1 plan is a best practice for corporate insiders, providing an affirmative defense against insider trading allegations and demonstrating a commitment to regulatory compliance, consistent with governance standards for large public companies.

Related Party Transactions

• The transactions involve the CEO and the company's stock, which is a standard and disclosed form of related party transaction in the context of executive compensation.

Stakeholder Impact

• Shareholders: Minimal direct impact as these are routine compensation-related transactions. The CEO's net ownership slightly increases from the vesting, but a portion is sold for taxes. The overall change in outstanding shares is negligible.
• Employees: No direct impact on general employees.
• Customers/Suppliers/Creditors: No direct impact.

Next Steps

• The reported transactions are scheduled to occur on January 24, 2026.

Key Dates

Keywords

Kirby Corp, KEX, David W. Grzebinski, SEC Form 4, Insider Trading, Restricted Stock Units, Stock Vesting, Rule 10b5-1, CEO Stock Ownership, Equity Compensation