Form 4: Iron Mountain Director Doyle Simons Increases Phantom Stock Holdings Through Compensation and Dividend Reinvestment

Iron Mountain Inc. Director Doyle Simons has increased his beneficial ownership of phantom stock units through dividend reinvestment and compensation deferral, reflecting continued alignment with shareholder interests.

Summary

• Doyle Simons, a Director of Iron Mountain Inc. (IRM), acquired additional phantom stock units.
• On July 3, 2025, 340.987 phantom stock units were acquired, representing reinvested dividends from Common Stock, at a weighted average price of $100.56 per unit.
• On July 7, 2025, an additional 347.908 phantom stock units were acquired, representing reinvestment of quarterly cash compensation for board services, at a weighted average price of $100.601 per unit.
• Each phantom stock unit is the economic equivalent of one share of Iron Mountain Incorporated common stock and becomes payable in common stock following the reporting person's disability or cessation of service as a director.
• Following these transactions, Doyle Simons beneficially owns a total of 44,369.762 phantom stock units.

Sentiment

Score: 7

Explanation: The acquisition of phantom stock by a director, particularly through dividend reinvestment and compensation deferral, is generally viewed as a positive sign of insider confidence and long-term alignment with shareholder interests. It's a routine transaction, not indicative of major news, hence not extremely positive, but certainly not negative.

Positives

• Increased insider ownership (phantom stock) indicates continued alignment of a director's interests with those of shareholders.
• The acquisition of phantom stock through dividend reinvestment and compensation deferral demonstrates a long-term commitment to the company.

Future Outlook

No forward-looking statements or guidance are provided in this Form 4 filing, beyond the nature of phantom stock becoming payable upon cessation of service.

Management Comments

• Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock will become payable in shares of Iron Mountain Incorporated common stock following the Reporting Person's disability or cessation of service as a director. Each Phantom Share is the economic equivalent of one share of Common Stock.
• The Reporting Person undertakes to provide Iron Mountain Incorporated, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock (underlying the phantom stock) at each separate price within the ranges of $100.419 to $100.594 and $100.539 to $100.624.

Industry Context

This Form 4 filing details an insider transaction specific to Iron Mountain Inc. and its director compensation plan. It does not provide information relevant to broader industry trends or competitive landscape analysis.

Corporate Governance

Related Party Transactions

• The reported transactions involve a director (Doyle Simons) acquiring phantom stock from the company (Iron Mountain Inc.) as part of a compensation plan, which constitutes a related party transaction.

Stakeholder Impact

• Shareholders: The increase in phantom stock ownership by a director aligns management interests with shareholder interests, potentially signaling confidence in the company's future performance.

Next Steps

• Phantom stock units will become payable in shares of Iron Mountain Incorporated common stock following the Reporting Person's disability or cessation of service as a director.

Key Dates

Recommendation

Keywords

Iron Mountain Inc., IRM, Doyle Simons, SEC Form 4, Insider Transaction, Phantom Stock, Beneficial Ownership, Director Compensation, Dividend Reinvestment, Corporate Governance