Grantham Mayo Van Otterloo & Co. LLC Reduces Stake in Malibu Boats

The institutional investor sold over 200,000 shares of the recreational boat manufacturer.

Published on Mar. 9, 2026

Grantham Mayo Van Otterloo & Co. LLC, an institutional investor, trimmed its holdings in Malibu Boats, Inc. (NASDAQ:MBUU) by 29.7% during the 3rd quarter. The firm sold 209,764 shares, leaving it with 495,971 shares worth $16.1 million at the end of the quarter.

Why it matters

Malibu Boats is a leading designer and manufacturer of performance sport boats for the recreational boating market. The company's stock price has fluctuated over the past year, and this reduction in stake by a major institutional investor could signal a shift in market sentiment around the company.

The details

Grantham Mayo Van Otterloo & Co. LLC, a Boston-based investment management firm, reduced its position in Malibu Boats during the third quarter of 2025. The firm sold 209,764 shares, leaving it with a remaining stake of 495,971 shares worth $16.1 million. This represented a 29.7% reduction in the firm's holdings of Malibu Boats stock.

  • Grantham Mayo Van Otterloo & Co. LLC reduced its stake in Malibu Boats during the 3rd quarter of 2025.

The players

Grantham Mayo Van Otterloo & Co. LLC

A Boston-based investment management firm that previously held a significant stake in Malibu Boats.

Malibu Boats, Inc.

A leading designer and manufacturer of performance sport boats for the recreational boating market.

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The takeaway

This reduction in stake by a major institutional investor could signal a shift in market sentiment around Malibu Boats, a prominent player in the recreational boating industry. Investors will be closely watching the company's performance and any further changes in institutional ownership in the coming quarters.