Form 4: Kirby Corp VP-CIO Miller Reports RSU Vesting, Stock Transactions

Kirby Corp's VP and CIO, Scott P. Miller, reported the vesting of restricted stock units and related common stock transactions under a pre-arranged 10b5-1 plan.

Summary

• Scott P. Miller, VP CIO of Kirby Corp (KEX), reported transactions involving common stock and restricted stock units (RSUs).
• On February 3, 2026, Miller acquired 5,375 shares of common stock at a price of $0, resulting from the vesting and conversion of restricted stock units.
• Concurrently, 1,311 shares of common stock were disposed of at a price of $120.68 per share to cover tax withholding obligations related to the RSU vesting.
• Following these transactions, Miller directly beneficially owns 7,525 shares of common stock.
• The transactions are part of a pre-arranged plan under Rule 10b5-1(c).
• The acquired common stock originated from the vesting of various tranches of RSUs granted between January 2022 and January 2025, with the latest vesting installment occurring on February 3, 2026.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as a routine and expected insider transaction related to equity compensation. The increase in direct ownership through RSU vesting is a positive, while the tax-related sale is standard practice.

Positives

• The acquisition of 5,375 shares of common stock through RSU vesting increases the insider's direct ownership in the company, aligning management interests with shareholders.
• The transactions are part of a pre-arranged 10b5-1 plan, indicating a structured approach to equity compensation and tax management, reducing concerns about opportunistic trading.

Negatives

• The disposition of 1,311 shares for tax withholding, while standard practice, represents a reduction in the insider's direct holdings that could have otherwise been retained.

Future Outlook

The filing does not contain specific forward-looking statements or guidance beyond the scheduled vesting dates of the restricted stock units.

Industry Context

StockSavvy.ai notes that equity compensation, particularly through Restricted Stock Units (RSUs), is a standard practice across industries to align executive incentives with shareholder value. The use of a 10b5-1 plan for these transactions is also a common and recommended practice for insiders to avoid accusations of trading on material non-public information.

Comparison to Industry Standards

• This type of RSU vesting and subsequent tax-related share disposition is a standard mechanism for executive compensation in publicly traded companies, consistent with practices observed at peers in the marine transportation and industrial services sectors such as Genesis Energy, L.P. (GEL) or Targa Resources Corp. (TRGP), which also utilize equity awards as a significant component of their executive remuneration packages.
• The specific number of shares and value are commensurate with a VP-level executive at a company of Kirby Corp's size.

Related Party Transactions

• The reported transactions are related to the compensation of a company officer, which is a standard related party transaction in the context of executive compensation.

Stakeholder Impact

• Shareholders: The vesting of RSUs and subsequent increase in direct ownership by a key executive generally aligns management's interests with shareholders, potentially fostering long-term value creation. The tax-related sale is a minor, routine event.
• Employees: The filing details executive compensation practices, which can set a precedent or reflect the company's overall approach to employee equity incentives.

Next Steps

• Future vesting installments of other restricted stock units held by Scott P. Miller will occur on their respective scheduled dates.

Key Dates

Recommendation

This Form 4 filing details routine, pre-scheduled insider transactions related to equity compensation. It does not provide new material information about the company's operational performance, financial health, or strategic direction that would warrant a change in investment recommendation. The transactions are expected and do not signal any significant positive or negative shifts in the company's outlook.

Keywords

Kirby Corp, KEX, Scott P. Miller, Form 4, Insider Trading, Restricted Stock Units, RSU Vesting, Common Stock, Equity Compensation, 10b5-1 Plan, VP CIO, Beneficial Ownership