> ## Content Index
> Fetch the complete content index at: https://www.bullished.co/llms.txt
> Use this file to discover other available public pages before exploring further.

# Dimensional Fund Advisors Reports A 5.2% Passive Stake In Ameresco
- URL: https://www.bullished.co/dimensional-fund-advisors-reports-a-5-2-passive-stake-in-ameresco-ea49adac/
- Published: 2026-10-08T18:43:50.000Z
- Updated: 2026-10-08T18:43:50.000Z
- Description: A Schedule 13G lists 1,815,018 Ameresco shares, with the manager certifying it has no aim to influence control.
- Author: Matteo Parrino
- Tags: SEC Filings, AMRC, Industry: Industrials

Dimensional Fund Advisors LP reported a [5.2% stake](https://www.sec.gov/Archives/edgar/data/0000354204/000035420426001072/xslSCHEDULE%5F13G%5FX01/primary%5Fdoc.xml?ref=bullished.co) in Ameresco, covering 1,815,018 common shares, in a passive ownership disclosure (Schedule 13G) filed Thursday. The filing gives September 30, 2026 as the date of the event.

## What the filing says

Dimensional holds sole voting power over [1,781,722](https://www.sec.gov/Archives/edgar/data/0000354204/000035420426001072/xslSCHEDULE%5F13G%5FX01/primary%5Fdoc.xml?ref=bullished.co) of the shares and shared voting power over none, according to the filing. It is classified as an investment adviser.

The filing says Dimensional advises four registered investment companies and also manages or sub-advises other pooled funds, group trusts and separate accounts. It states that all the reported securities are owned by those funds, and Dimensional disclaims beneficial ownership of them.

It also says that, to Dimensional's knowledge, no single fund's interest exceeds 5% of the class.

## What it changes

A 13G is the short-form filing for holders who say they are passive. Dimensional signed a certification that the shares were bought and are held in the ordinary course of business, not to change or influence control of Ameresco.

That separates this from an activist filing. Nothing in it points to a board push or a deal.

Ameresco shares traded at $21.05 in Thursday trading, down about 4% from the prior close of $21.93, according to market data. The filing does not link that move to the stake. Ameresco has a market value of about $1.2 billion.

## Separate news at Ameresco

Separately, Ameresco [won a $42 million contract](https://seekingalpha.com/news/4651320-ameresco-wins-42m-contract-to-modernize-columbia-missouri-utility-meters?ref=bullished.co) from Columbia, Missouri, according to Seeking Alpha. The work covers replacing roughly 54,000 electric meters and 53,000 water meters, plus a new network, data software and billing-system integration.

Of the 1,815,018 shares reported, 1,781,722 carry sole voting power, and none carry shared voting power.

### Sources

- [SCHEDULE 13G — Dimensional Fund Advisors LP re: Ameresco Inc (AMRC)](https://www.sec.gov/Archives/edgar/data/0000354204/000035420426001072/xslSCHEDULE%5F13G%5FX01/primary%5Fdoc.xml?ref=bullished.co) — SEC EDGAR
- [Ameresco wins $42M contract to modernize Columbia, Missouri, utility meters (AMRC:NYSE) | Seeking Alpha](https://seekingalpha.com/news/4651320-ameresco-wins-42m-contract-to-modernize-columbia-missouri-utility-meters?ref=bullished.co) — seekingalpha.com