Form 4: Winmill & Co. Boosts Stake in Global Self Storage

Winmill & Co. Inc. reported acquiring an additional 8,124 shares of Global Self Storage, Inc. common stock across two transactions in November 2025.

Summary

• Winmill & Co. Inc., identified as a 10% owner and an affiliate of Global Self Storage, Inc. (SELF), increased its direct beneficial ownership of common stock.
• On November 11, 2025, Winmill & Co. Inc. purchased 2,069 shares of common stock at a price of $4.9698 per share.
• On November 12, 2025, an additional 6,055 shares of common stock were acquired at $5.027 per share.
• Following these transactions, Winmill & Co. Inc. directly beneficially owns a total of 83,858 shares of Global Self Storage, Inc. common stock.
• These acquisitions were executed pursuant to a Rule 10b5-1(c) plan, indicating a pre-arranged trading strategy.
• The Winmill Family Trust, which owns all voting stock of Winmill & Co. Inc., and its trustees (Thomas B. Winmill, Mark C. Winmill, William Winmill, and Woodworth Winmill) may be deemed to have indirect beneficial ownership but explicitly disclaim such ownership.

Sentiment

Score: 7

Explanation: The acquisition of additional shares by a 10% owner and affiliate suggests a positive outlook from a key insider, indicating confidence in the company's value or future performance. The transactions being part of a 10b5-1 plan suggests a pre-planned investment strategy rather than an immediate reaction to new information, but still reflects a long-term positive view.

Positives

• A significant shareholder and affiliate, Winmill & Co. Inc., increased its direct beneficial ownership by 8,124 shares, signaling confidence in Global Self Storage, Inc.'s prospects.
• The insider buying activity by a 10% owner can be interpreted as a positive signal regarding the company's valuation or future performance.

Future Outlook

NA

Management Comments

• The Reporting Person may be deemed to be an affiliate of the Issuer.
• The Winmill Family Trust owns all of the voting stock of the Reporting Person.
• Each of Thomas B. Winmill, Mark C. Winmill, William Winmill, Woodworth Winmill, and the Winmill Family Trust disclaims beneficial ownership of these shares.

Industry Context

NA

Related Party Transactions

• The Winmill Family Trust owns all voting stock of Winmill & Co. Inc., and its trustees (Thomas B. Winmill, Mark C. Winmill, William Winmill, Woodworth Winmill) may be deemed to have indirect beneficial ownership, though they disclaim it. This indicates a close relationship between the reporting person and the issuer's controlling entities.

Stakeholder Impact

• Shareholders may view the insider buying as a positive signal, potentially increasing confidence in the company's stock.
• The increased stake by Winmill & Co. Inc. reinforces their influence as a significant owner and affiliate.

Key Dates

Recommendation

The reported insider buying by Winmill & Co. Inc., a 10% owner and affiliate, is a positive indicator of confidence in Global Self Storage, Inc. by a knowledgeable party. While this transaction alone doesn't warrant a 'strong buy' without a deeper dive into the company's financials and market position, it suggests that existing shareholders should 'hold' and potential investors should conduct further due diligence, as insider purchases often precede positive developments or reflect a belief that the stock is undervalued.

Keywords

Global Self Storage, SELF, Winmill & Co., Insider Buying, Form 4, Stock Acquisition, Real Estate, Self Storage, Investment, Shareholder