Gruss & Co. LLC Increases Microsoft Stake by 100%

Investment firm adds 3,000 shares to its Microsoft holdings in Q3

Published on Mar. 6, 2026

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Gruss & Co. LLC, an investment management firm, increased its stake in Microsoft Corporation (NASDAQ:MSFT) by 100% during the third quarter, according to a recent 13F filing with the Securities and Exchange Commission. The firm now owns 6,000 shares of the software giant's stock, valued at $3.1 million as of the filing date.

Why it matters

Microsoft is one of the most widely held and influential technology companies, and institutional investor activity in its stock can provide insights into broader market trends and investor sentiment around the company's performance and future prospects.

The details

Gruss & Co. LLC acquired an additional 3,000 shares of Microsoft during the third quarter, bringing its total position to 6,000 shares. This represents a 100% increase in the firm's Microsoft holdings compared to the previous quarter. Microsoft comprises 8.1% of Gruss & Co. LLC's portfolio, making it the firm's second-largest position.

  • Gruss & Co. LLC filed its 13F report for the third quarter on October 15, 2026.

The players

Gruss & Co. LLC

An investment management firm that holds a significant position in Microsoft Corporation.

Microsoft Corporation

A global technology company headquartered in Redmond, Washington, known for its Windows operating system, Microsoft 365 productivity suite, and cloud computing services.

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The takeaway

Gruss & Co. LLC's increased stake in Microsoft suggests the firm sees continued growth potential in the software giant, despite broader market volatility. This move aligns with the broader trend of institutional investors maintaining confidence in Microsoft's long-term prospects as a leading technology company.