Form 4: Rivian CAO Michael Callahan Reports Stock Tax Withholding

Rivian Automotive Chief Administrative Officer Michael Callahan reported the withholding of 42,082 shares to satisfy tax obligations related to RSU vesting.

Summary

• Michael Callahan, Chief Administrative Officer of Rivian Automotive, Inc., had 42,082 shares of Class A Common Stock withheld by the company.
• The transaction occurred on May 15, 2026, to satisfy tax withholding obligations associated with the vesting of 82,703 Restricted Stock Units (RSUs).
• The shares were valued at $14.52 per share, based on the closing price on May 14, 2026.
• Following this transaction, the reporting person maintains beneficial ownership of 1,072,176 shares.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral administrative event, as it represents a mandatory tax settlement rather than a change in management's outlook on the company.

Positives

• The transaction is a routine administrative action related to equity compensation rather than a discretionary market sale.

Negatives

• The transaction results in a reduction of the officer's direct share ownership.

Risks

• None identified; this is a standard tax-related equity transaction.

Future Outlook

No forward-looking guidance provided in this filing.

Industry Context

StockSavvy.ai notes that tax-related share withholding is a standard practice for corporate executives at publicly traded companies to manage tax liabilities arising from equity compensation vesting.

Comparison to Industry Standards

• The transaction follows standard corporate governance practices for executive compensation and tax compliance consistent with major automotive and technology firms.

Stakeholder Impact

• Minimal impact on shareholders as this is a routine tax-related transaction.

Next Steps

• None indicated.

Key Dates

Keywords

Rivian, RIVN, Insider Trading, Form 4, Equity Compensation, Tax Withholding