Ameresco, Inc.
Total Trades
70
Buys
7
Sells
33
Largest Trade
N/A
Insiders
13
Institutional Funds
142
Inst. Value
$1M+
Activist Filings
29
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| STAVROPOULOS NICKOLAS | Director | SELL | $500K+ | 16K | $34.15 | Feb 23, 2026 |
| STAVROPOULOS NICKOLAS | Director | EXERCISE | $100K–$500K | 16K | $16.33 | Feb 23, 2026 |
| STAVROPOULOS NICKOLAS | Director | SELL | $15K–$50K | 445 | $34.03 | Feb 13, 2026 |
| STAVROPOULOS NICKOLAS | Director | EXERCISE | $1K–$15K | 445 | $16.33 | Feb 13, 2026 |
| STAVROPOULOS NICKOLAS | Director | EXERCISE | $1K–$15K | 100 | $16.33 | Jan 30, 2026 |
| STAVROPOULOS NICKOLAS | Director | SELL | $1K–$15K | 100 | $34.00 | Jan 30, 2026 |
| Chiplock Mark | EVP, CFO & CAO | EXERCISE | $50K–$100K | 6K | $12.46 | Oct 3, 2025 |
| Chiplock Mark | EVP, CFO & CAO | SELL | $100K–$500K | 6K | $37.95 | Oct 3, 2025 |
| Corrsin David J | EVP and General Co… | SELL | <$1K | 19 | $28.00 | Sep 16, 2025 |
| Chiplock Mark | EVP, CFO & CAO | SELL | $1K–$15K | 269 | $28.00 | Sep 16, 2025 |
| Corrsin David J | EVP and General Co… | EXERCISE | N/A | 50 | — | Sep 10, 2025 |
| Corrsin David J | EVP and General Co… | SELL | <$1K | 19 | $27.04 | Sep 10, 2025 |
| Chiplock Mark | EVP, CFO & CAO | EXERCISE | N/A | 276 | — | Mar 19, 2025 |
| Chiplock Mark | EVP, CFO & CAO | SELL | $1K–$15K | 95 | $11.92 | Mar 19, 2025 |
| Corrsin David J | EVP and General Co… | SELL | $1K–$15K | 100 | $11.92 | Mar 19, 2025 |
| Corrsin David J | EVP and General Co… | EXERCISE | N/A | 284 | — | Mar 19, 2025 |
| Corrsin David J | EVP and General Co… | SELL | <$1K | 21 | $10.22 | Mar 11, 2025 |
| Corrsin David J | EVP and General Co… | EXERCISE | N/A | 50 | — | Mar 11, 2025 |
| WISNESKI FRANCIS V JR | Director | BUY | $1K–$15K | 400 | $10.17 | Mar 11, 2025 |
| Sutton Joseph W. | Director | BUY | $100K–$500K | 15K | $26.22 | Nov 19, 2024 |
| Sakellaris George P | President and CEO | BUY | $500K+ | 25K | $26.54 | Nov 15, 2024 |
| Chiplock Mark | SVP & CAO | EXERCISE | $15K–$50K | 3K | $10.05 | Jun 3, 2024 |
| Chiplock Mark | SVP & CAO | SELL | $100K–$500K | 3K | $35.00 | Jun 3, 2024 |
| Sakellaris George P | President and CEO | BUY | $100K–$500K | 10K | $28.76 | Nov 21, 2023 |
| Sakellaris George P | President and CEO | BUY | $500K+ | 25K | $27.33 | Nov 16, 2023 |
| Sakellaris George P | President and CEO | BUY | $500K+ | 40K | $22.57 | Nov 13, 2023 |
| Bulgarino Nicole E | Executive Vice Pre… | BUY | $100K–$500K | 15K | $22.40 | Nov 13, 2023 |
| Sakellaris George P | President and CEO | SELL | $15K–$50K | 1K | $43.51 | Sep 20, 2023 |
| Sakellaris George P | President and CEO | EXERCISE | N/A | 2K | — | Sep 20, 2023 |
| Corrsin David J | EVP and General Co… | EXERCISE | N/A | 287 | — | Sep 20, 2023 |
| Corrsin David J | EVP and General Co… | SELL | $1K–$15K | 109 | $43.51 | Sep 20, 2023 |
| Bakas Michael T | Executive Vice Pre… | EXERCISE | N/A | 295 | — | Sep 20, 2023 |
| Bakas Michael T | Executive Vice Pre… | SELL | $1K–$15K | 112 | $43.51 | Sep 20, 2023 |
| Maltezos Louis P | Executive Vice Pre… | EXERCISE | N/A | 222 | — | Sep 20, 2023 |
| Maltezos Louis P | Executive Vice Pre… | SELL | $1K–$15K | 81 | $43.51 | Sep 20, 2023 |
| Hole Spencer Doran | EVP and CFO | EXERCISE | N/A | 295 | — | Sep 20, 2023 |
| Hole Spencer Doran | EVP and CFO | SELL | $1K–$15K | 92 | $43.51 | Sep 20, 2023 |
| Christakis Peter | Executive Vice Pre… | EXERCISE | N/A | 295 | — | Sep 20, 2023 |
| Christakis Peter | Executive Vice Pre… | SELL | $1K–$15K | 112 | $43.51 | Sep 20, 2023 |
| Chiplock Mark | SVP & CAO | EXERCISE | N/A | 277 | — | Sep 20, 2023 |
| Chiplock Mark | SVP & CAO | SELL | $1K–$15K | 105 | $43.51 | Sep 20, 2023 |
| MacIntosh Britta | Senior Vice Presid… | SELL | $1K–$15K | 128 | $43.51 | Sep 20, 2023 |
| MacIntosh Britta | Senior Vice Presid… | EXERCISE | N/A | 295 | — | Sep 20, 2023 |
| Bulgarino Nicole E | Executive Vice Pre… | EXERCISE | N/A | 295 | — | Sep 20, 2023 |
| Bulgarino Nicole E | Executive Vice Pre… | SELL | $1K–$15K | 110 | $43.51 | Sep 20, 2023 |
| Hole Spencer Doran | EVP and CFO | EXERCISE | $50K–$100K | 5K | $13.37 | Sep 11, 2023 |
| Hole Spencer Doran | EVP and CFO | SELL | $100K–$500K | 5K | $41.86 | Sep 11, 2023 |
| Hole Spencer Doran | EVP and CFO | SELL | $100K–$500K | 5K | $43.54 | Sep 5, 2023 |
| Hole Spencer Doran | EVP and CFO | EXERCISE | $50K–$100K | 5K | $13.37 | Sep 5, 2023 |
| WISNESKI FRANCIS V JR | Director | SELL | $100K–$500K | 5K | $44.19 | Sep 5, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 142 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 1.3M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 1.1M | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 1.1M | $1M+ | SH |
| GAGNON SECURITIES LLC | 833K | $1M+ | SH |
| DnB Asset Management AS | 785K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 660K | $1M+ | SH |
| Handelsbanken Fonder AB | 651K | $1M+ | SH |
| Bandera Partners LLC | 527K | $1M+ | SH |
| Gagnon Advisors, LLC | 473K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 395K | $1M+ | SH |
| Swedbank AB | 370K | $1M+ | SH |
| Swedbank AB | 370K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 262K | $1M+ | SH |
| TUDOR INVESTMENT CORP ET AL | 222K | $1M+ | SH |
| Empowered Funds, LLC | 208K | $1M+ | SH |
| Rock Point Advisors, LLC | 192K | $1M+ | SH |
| Guinness Asset Management LTD | 185K | $1M+ | SH |
| DekaBank Deutsche Girozentrale | 185K | $1M+ | SH |
| SG Americas Securities, LLC | 142K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Grantham, Mayo, Van Otterloo & Co. LLC
SC 13G/A · Feb 10, 2026
6.7%
2.3M shares
Wellington Management Group LLP
SC 13G/A · Feb 10, 2026
11.2%
3.9M shares
Wellington Management Group LLP
SC 13G/A · Nov 12, 2025
13.6%
4.7M shares
Grantham, Mayo, Van Otterloo & Co. LLC
SC 13G/A · Nov 5, 2025
9.2%
3.2M shares
SC 13G/A · Oct 31, 2025
0.8%
270K shares
SC 13G/A · Oct 24, 2025
2.8%
964K shares
Wellington Management Group LLP
SC 13G/A · Sep 8, 2025
11.1%
3.9M shares
Wellington Management Group LLP
SC 13G · Aug 12, 2025
5.1%
1.8M shares
SC 13G · Jul 16, 2025
5.4%
1.9M shares
SC 13G/A · May 15, 2025
0.0%
93 shares
SC 13G/A · Apr 30, 2025
7.6%
2.6M shares
SC 13G · Mar 10, 2025
2.9%
1.0M shares
SC 13G · Feb 7, 2025
5.4%
1.8M shares
SC 13G/A · Jan 31, 2025
39.5%
20.7M shares
SC 13G/A · Nov 13, 2024
4.9%
1.7M shares
SC 13G/A · Nov 1, 2024
4.9%
1.7M shares
SC 13G · Feb 14, 2024
5.1%
1.8M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.1%
3.1M shares
Grantham, Mayo, Van Otterloo & Co. LLC 04-2691242
SC 13G/A · Feb 13, 2024
11.8%
4.0M shares
SC 13G/A · Feb 12, 2024
39.5%
20.6M shares
SC 13G/A · Jan 26, 2024
7.0%
2.4M shares
SC 13G/A · Jan 24, 2024
553.0%
1.9M shares
Grantham, Mayo, Van Otterloo & Co. LLC 04-2691242
SC 13G/A · Apr 10, 2023
11.3%
3.8M shares
Grantham, Mayo, Van Otterloo & Co. LLC 04-2691242
SC 13G · Feb 13, 2023
8.4%
2.9M shares
SC 13G/A · Feb 9, 2023
39.0%
20.4M shares
SC 13G/A · Jan 31, 2023
7.1%
2.4M shares
SC 13G · Jan 23, 2023
678.0%
2.3M shares
SC 13G/A · Feb 14, 2022
4.1%
1.4M shares
SC 13G/A · Feb 11, 2022
38.9%
20.1M shares