Data spanning the past 90 days through January 10, 2026 reveals that Ameresco's three principal insider shareholders consist of President And Ceo George P Sakellaris (2.08Mn shares), Director Joseph W. Sutton (183.47K shares), President Federal & Utility Nicole E Bulgarino (58.42K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| George P Sakellaris | President And Ceo | 2,084,847 | 12 Sep, 2025 |
| Joseph W. Sutton | 183,466 | 06 Jun, 2025 | |
| Nicole E Bulgarino | President Federal & Utility | 58,421 | 12 Sep, 2025 |
| Britta Macintosh | Senior Vice President | 33,979 | 19 Sep, 2023 |
| Louis P Maltezos | President Central&West Usa Can | 31,526 | 12 Sep, 2025 |
| Francis V Jr Wisneski | 25,232 | 06 Jun, 2025 | |
| Jennifer L Miller | 22,111 | 06 Jun, 2025 | |
| David Anderson | Executive Vice President | 20,000 | 15 Jun, 2021 |
| Nickolas Stavropoulos | 14,111 | 06 Jun, 2025 | |
| Douglas I Foy | 14,000 | 10 Mar, 2022 | |
| Charles R. Patton | 13,389 | 06 Jun, 2025 | |
| Michael T Bakas | President Renewable Fuels | 12,759 | 12 Sep, 2025 |
| Peter Christakis | President Eastusa And Projectrisk | 12,606 | 12 Sep, 2025 |
| Claire D'Oyly-Hughes Johnson | 11,911 | 06 Jun, 2025 | |
| Thomas S Murley | 10,500 | 05 Nov, 2021 | |
| Spencer Doran Hole | Evp And Cfo | 1,878 | 14 Aug, 2024 |
| Mark Chiplock | Evp And Cfo & Cao | 1,189 | 14 Oct, 2025 |
| David J Corrsin | Evp And General Counsel | 850 | 19 Mar, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 11,799 | $13.37 | 17,988 | D | M |
| 13 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 6,599 | $41.92 | 6,189 | D | S |
| 13 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 5,000 | $12.35 | 6,189 | D | M |
| 13 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 5,200 | $41.57 | 12,788 | D | S |
| 13 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 5,000 | $44.92 | 1,189 | D | S |
| 09 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 2,100 | $13.37 | 3,289 | D | M |
| 09 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 7,100 | $39.97 | 1,189 | D | S |
| 09 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 5,000 | $12.35 | 8,289 | D | M |
| 08 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 3,800 | $39.75 | 1,189 | D | S |
| 08 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 3,800 | $13.37 | 4,989 | D | M |
| 07 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 5,900 | $39.51 | 1,189 | D | S |
| 07 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 5,900 | $13.37 | 7,089 | D | M |
| 06 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 5,900 | $38.92 | 1,189 | D | S |
| 06 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 5,900 | $13.37 | 7,089 | D | M |
| 01 Oct, 2025 | Mark Chiplock | Class A Common Stock | D | 5,602 | $37.95 | 1,189 | D | S |
| 01 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 602 | $13.37 | 6,791 | D | M |
| 01 Oct, 2025 | Mark Chiplock | Class A Common Stock | A | 5,000 | $12.35 | 6,189 | D | M |
| 15 Sep, 2025 | David J Corrsin | Class A Common Stock | D | 19 | $28.00 | 379 | I | S |
| 15 Sep, 2025 | Mark Chiplock | Class A Common Stock | D | 269 | $28.00 | 1,189 | D | S |
| 10 Sep, 2025 | Louis P Maltezos | - | - | 31,526 | D |