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Framingham Today
By the People, for the People
Grantham Mayo Van Otterloo & Co. LLC Reduces Stake in Ameresco, Inc.
Institutional investor trims position in renewable energy company
Published on Mar. 8, 2026
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Grantham Mayo Van Otterloo & Co. LLC, a major institutional investor, has reduced its stake in Ameresco, Inc. (NYSE:AMRC) by 16.7% in the third quarter. The firm now owns approximately 6.10% of the renewable energy company's shares, down from a previous holding of 3,203,393 shares.
Why it matters
This reduction in Grantham Mayo Van Otterloo's position in Ameresco reflects broader market trends and investor sentiment around the renewable energy sector. As a major institutional investor, their portfolio decisions can influence market perceptions and impact the stock price.
The details
According to a recent SEC filing, Grantham Mayo Van Otterloo & Co. LLC sold 643,538 shares of Ameresco during the third quarter, reducing their total stake to 3,203,393 shares. The firm cited portfolio rebalancing and market conditions as reasons for the sale.
- Grantham Mayo Van Otterloo & Co. LLC reduced its Ameresco stake in the third quarter of 2026.
The players
Grantham Mayo Van Otterloo & Co. LLC
A major institutional investment management firm that previously owned a significant stake in Ameresco, Inc.
Ameresco, Inc.
A renewable energy company that provides energy efficiency and renewable energy solutions to businesses and governments.
The takeaway
This reduction in Grantham Mayo Van Otterloo's Ameresco position reflects broader market trends and investor sentiment around the renewable energy sector. As a major institutional investor, their portfolio decisions can influence market perceptions and impact the stock price of companies like Ameresco.


