Bamco Inc. NY Trims Stake in Transdigm Group Incorporated $TDG

Institutional investor reduces holdings in aerospace company

Mar. 15, 2026 at 9:06am

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Bamco Inc. NY, a major institutional investor, reduced its stake in Transdigm Group Incorporated (NYSE:TDG) by 6.5% during the third quarter, according to a recent 13F filing with the Securities and Exchange Commission. The fund now owns 82,149 shares of the aerospace company's stock, valued at $108,274,000 at the end of the reporting period.

Why it matters

Transdigm Group is a major designer and supplier of critical aircraft components and systems, serving both commercial and military aerospace markets. Changes in institutional ownership of the company's stock can signal shifts in investor sentiment and market expectations around the firm's performance and growth prospects.

The details

According to the 13F filing, Bamco Inc. NY sold 5,695 shares of Transdigm Group during the third quarter, reducing its total holdings to 82,149 shares. The fund previously owned 0.15% of the aerospace company's outstanding stock. Other major institutional investors in Transdigm Group include Vanguard Group Inc., Capital International Investors, and Principal Financial Group Inc., which collectively own a significant portion of the company's shares.

  • Bamco Inc. NY reduced its stake in Transdigm Group during the third quarter of 2026.

The players

Bamco Inc. NY

A major institutional investor that reduced its holdings in Transdigm Group Incorporated.

Transdigm Group Incorporated

An American aerospace company that designs, produces, and supplies engineered aircraft components and systems for commercial and military applications.

Vanguard Group Inc.

A large institutional investor that owns a significant stake in Transdigm Group.

Capital International Investors

Another major institutional investor with a large position in Transdigm Group.

Principal Financial Group Inc.

An institutional investor that also holds a substantial stake in Transdigm Group.

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The takeaway

The reduction in Bamco Inc. NY's stake in Transdigm Group suggests a potential shift in investor sentiment around the aerospace company, though the overall institutional ownership remains high. Analysts will likely monitor changes in major shareholders' positions to gauge market expectations and the company's performance going forward.