Form 4: MSC Industrial COO Reports Significant Stock Transactions

MSC Industrial Direct Co. COO Martina McIsaac reported the vesting of restricted stock units, a new RSU grant, and related stock transactions.

Summary

• Martina McIsaac, President & COO of MSC Industrial Direct Co. Inc. (MSM), reported transactions on November 3, 2025.
• Acquired 959 shares of Class A Common Stock through the vesting of Restricted Stock Units (RSUs).
• Acquired 76.614 shares of Class A Common Stock through the vesting of Dividend Equivalent Units (DEUs).
• Disposed of 252.614 shares of Class A Common Stock to the Issuer to cover tax withholding obligations at a price of $84.79 per share.
• Beneficially owns 6,210 shares of Class A Common Stock directly following these transactions.
• Received a new grant of 20,049 Restricted Stock Units (RSUs) on November 3, 2025.
• The new RSU grant vests in four annual installments: 5,012 RSUs on November 3, 2026, November 3, 2027, and November 3, 2028, and 5,013 RSUs on November 3, 2029, contingent on continuous employment.
• Previously granted 3,835 RSUs on November 3, 2023, with 959 RSUs vesting on November 3, 2025, and remaining 959 RSUs vesting on November 3, 2026, and November 3, 2027.

Sentiment

Score: 5

Explanation: The filing is a routine disclosure of insider transactions related to executive compensation, which is neutral in sentiment. It reflects standard practices for incentivizing and retaining key personnel.

Positives

• The grant of 20,049 new Restricted Stock Units aligns management's interests with long-term shareholder value.
• Continued vesting of existing RSUs and DEUs demonstrates ongoing compensation and retention of a key executive.

Risks

• The vesting of RSUs and DEUs is contingent upon the Reporting Person remaining continuously employed by the Issuer through each applicable vesting date, posing a risk of forfeiture if employment ceases.

Future Outlook

The future outlook for the reporting person includes the vesting of 20,049 new Restricted Stock Units in annual installments from November 2026 through November 2029, and the remaining 1,918 RSUs from a prior grant vesting in November 2026 and November 2027, all contingent on continuous employment.

Industry Context

This Form 4 filing details routine executive compensation and stock transactions, which are common practices across publicly traded companies to incentivize and retain key management personnel. It does not provide specific insights into broader industry trends or competitive positioning.

Stakeholder Impact

• Shareholders: The RSU grants and vesting align the interests of the COO with shareholders, as her compensation is tied to the company's stock performance and long-term value creation.
• Employees: The continuous employment condition for RSU vesting is a standard retention mechanism for key executives.

Next Steps

• Delivery of vested shares to the Reporting Person upon each future vesting date, provided employment conditions are met.

Key Dates

Keywords

MSC Industrial Direct Co Inc, MSM, Martina McIsaac, Form 4, Insider Transaction, Restricted Stock Units, RSU, Dividend Equivalent Units, DEU, Stock Vesting, Executive Compensation