Key Points
The transaction involved 10,000 shares purchased for $214,300 at a weighted-average price of $21.43 per share.
The purchase of Class A Common Stock was equal to 1% of the CEO's direct equity holdings prior to the filing.
Sakellaris holds ~2.3 million shares in total, with 1,005,597 shares held directly and ~1.3 million shares held indirectly through a trust and his spouse.
The open-market acquisition occurred as the stock's one-year return stood at -11% as of the August 25, 2026 transaction date.
George P. Sakellaris, the founder and Chief Executive Officer of Ameresco Inc (NYSE:AMRC), purchased 10,000 shares of Class A Common Stock on Aug. 24, 2026 and Aug. 25, 2026, according to an SEC Form 4 filing.
Transaction summary
| Metric | Value |
|---|---|
| Transaction value | $214,300 |
| Shares purchased | 10,000 |
| Post-transaction shares (directly held) | 1,005,597 |
| Post-transaction shares (indirectly held) | 1,300,000 |
| Post-transaction value | $50.88 million |
Transaction value based on SEC Form 4 weighted average purchase price ($21.43); post-transaction value based on Aug. 25, 2026 market close ($22.07).
Key questions
- What is the scale of the capital commitment relative to the CEO's existing position?
The 10,000-share acquisition represented 1% of Sakellaris's direct stake before the transaction, while his total beneficial ownership across all accounts remains substantial at ~2.3 million shares. - How is the CEO's indirect equity ownership structured?
The executive maintains indirect beneficial ownership of 1,100,000 shares through a trust for the benefit of his children and 200,000 shares held by his spouse. - What is the current market valuation of the total beneficial holdings?
Based on the Aug. 25, 2026 market close of $22.07, the total equity position held by Sakellaris is valued at approximately $50.88 million. - In what pricing range was the weighted-average purchase executed?
The shares were acquired in multiple transactions at prices ranging from $20.56 to $22.15 per share between Aug. 24, 2026 and Aug. 25, 2026.
Company Overview
| Metric | Value |
|---|---|
| Share Price (as of market close 2026-08-25) | $22.07 |
| Market Capitalization | $1.2 billion |
| Revenue (TTM) | $2.0 billion |
| Net Income (TTM) | $28.3 million |
Company Snapshot
- Ameresco operates as a clean technology integrator, providing comprehensive energy efficiency solutions, deployment of renewable energy systems, and critical infrastructure improvements across North American and global markets.
- The company generates revenue through performance-based energy services contracts, capital-intensive project development, and long-term operational partnerships that align financial returns with customer energy savings and sustainability outcomes.
- Ameresco serves a diversified customer base including commercial enterprises, municipalities, government agencies, and institutional organizations seeking to enhance energy security, reduce operational costs, and advance environmental sustainability objectives.
Ameresco is a leading clean technology integrator with $2.0 billion in trailing twelve-month (TTM) revenue and a market capitalization of $1.2 billion, positioning the company as a significant player in the energy efficiency and renewable energy sectors. The company's business model emphasizes long-term value creation through performance-based contracts that generate recurring revenue streams while delivering measurable energy savings and resilience improvements for its diverse customer base. Ameresco's competitive differentiation lies in its integrated approach to energy solutions, combining engineering expertise, project financing capabilities, and operational management to address complex infrastructure and sustainability challenges.
What this transaction means for investors
Sakellaris founded Ameresco in 2000 and has run the business since. He knows it inside and out.
We like to see buying by insiders because of the dynamics around insider buying and selling. There are many reasons an insider may sell shares in a company. One reason could be the need to raise cash to fund a large personal expense. Another reason could be for a reasonable portfolio diversification unrelated to their outlook for the company. A third reason could be what investors fear most: a bearish outlook on the company's future.
However, there is only one reason an insider buys stock: they believe the share price is going up.
By that rule of thumb, Sakellaris's purchase is bullish. Helping the bull case: more often than not, an insider purchase predicts a higher share price 30 days later.
The market dynamics are looking positive for Ameresco too. The company recently brought online the 250 megawatt Napanee Battery Energy Storage System, which is one of the largest energy storage projects in Canada. Ameresco is also part of a 560 megawatt solar project in Greece, one of the largest projects in Europe. Not only is the trend toward renewable energy a major tailwind for Ameresco, but AI data center demand and the backlash against their effect on electricity prices mean they will want to install more localized solar and wind and battery storage capabilities on-site-right in Ameresco's wheelhouse.
An insider buy like Sakellaris's isn't a buy signal by itself, but coupled with the company's market outlook, it is a strong sign to put Ameriesco on your buy list.
Brendan Coffey has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.