Ameresco Ownership | Who Owns Ameresco?
Ameresco Ownership Summary
Ameresco is owned by 63.02% institutional investors, 8.46% insiders, and 28.53% retail investors. Wellington management group llp is the largest institutional shareholder, holding 9.00% of AMRC shares. First Trust RBA Amer Indl RenaisTM ETF is the top mutual fund, with 3.21% of its assets in Ameresco shares.
AMRC Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ameresco | 63.02% | 8.46% | 28.53% |
| Sector | Industrials Stocks | 45.61% | 12.61% | 41.79% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Wellington management group llp | 4.74M | 9.00% | $159.02M |
| Grantham, mayo, van otterloo | 3.20M | 6.09% | $107.57B |
| Blackrock funding, inc. /de | 2.42M | 4.60% | $81.24M |
| Blackrock | 2.40M | 4.59% | $69.12M |
| Vanguard group | 2.41M | 4.58% | $81.01M |
| State street | 1.46M | 2.78% | $49.08M |
| Dimensional fund advisors lp | 1.24M | 2.35% | $41.58M |
| Dnb asset management as | 1.03M | 1.97% | $34.74M |
| Royce & associates lp | 964.01K | 1.83% | $32.37M |
| Granahan investment management | 890.07K | 1.69% | $29.89M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Gagnon advisors | 472.80K | 9.80% | $15.88M |
| Bandera partners | 526.77K | 7.75% | $17.69M |
| Redwood grove capital | 619.63K | 5.96% | $20.81M |
| Gagnon securities | 859.41K | 5.79% | $28.86M |
| Rock point advisors | 250.02K | 2.22% | $8.40M |
| Granahan investment management | 890.07K | 1.22% | $29.89M |
| Clean yield group | 75.23K | 0.71% | $2.53M |
| Kuhn & co investment counsel | 21.65K | 0.58% | $727.01K |
| Pier capital | 104.38K | 0.55% | $3.51M |
| Vanguard capital wealth advisors | 15.00K | 0.40% | $503.70K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Wellington management group llp | 4.74M | 0.03% | 2.98M |
| Royce & associates lp | 964.01K | 0.32% | 640.11K |
| Granahan investment management | 890.07K | 1.22% | 462.88K |
| Handelsbanken fonder ab | 605.33K | 0.06% | 289.38K |
| Bank of america corp /de/ | 318.94K | 0.00% | 231.21K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| First trust advisors lp | 176.75K | 0.00% | -1.60M |
| Stephens investment management group | - | - | -1.07M |
| Grantham, mayo, van otterloo | 3.20M | 0.30% | -643.54K |
| Candriam s.c.a. | - | - | -418.58K |
| Centerbook partners lp | - | - | -318.68K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Driehaus capital management | 214.70K | 0.05% | 214.70K | $7.21M |
| Jane street group | 177.59K | 0.00% | 177.59K | $5.96B |
| Portolan capital management | 174.90K | 0.32% | 174.90K | $5.87M |
| Cooper creek partners management | 152.93K | 0.16% | 152.93K | $5.13M |
| Swedbank ab | 116.00K | 0.00% | 116.00K | $3.90M |
Sold Out
| Holder | Change |
|---|---|
| Mai capital management | -1.00 |
| Ifp advisors | -1.00 |
| Dinuzzo private wealth | -2.00 |
| Sjs investment consulting | -4.00 |
| Innealta capital | -4.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 183 | 16.56% | 33,170,163 | 7.14% | 63 | 1.82% | 89 | -3.26% | 61 | 38.64% |
| Jun 30, 2025 | 165 | -7.30% | 32,593,585 | 5.53% | 61 | 1.79% | 93 | -8.82% | 49 | -3.92% |
| Mar 31, 2025 | 5 | -97.28% | 1,194,190 | -96.25% | 2 | 0.06% | 2 | -97.70% | 2 | -96.49% |
| Dec 31, 2024 | 180 | -4.26% | 31,813,835 | -1.51% | 60 | 1.60% | 85 | -3.41% | 56 | -12.50% |
| Sep 30, 2024 | 188 | -0.53% | 32,300,198 | -1.25% | 61 | 1.57% | 89 | -11.88% | 63 | 8.62% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| First Trust RBA Amer Indl RenaisTM ETF | 1.69M | 3.21% | - |
| Macquarie Small Cap Core I | 1.49M | 2.84% | - |
| Delaware Small Cap Core I | 1.25M | 2.39% | -7.77K |
| GMO Resources Composite | 1.08M | 2.05% | - |
| GMO Resources III | 1.08M | 2.05% | - |
| Vanguard US Total Market Shares ETF | 1.04M | 1.98% | - |
| Vanguard Total Stock Mkt Idx Inv | 1.03M | 1.95% | -22.77K |
| GMO Climate Change III | 1.00M | 1.91% | - |
| GMO Climate Change Composite | 1.00M | 1.91% | - |
| iShares Russell 2000 ETF | 782.00K | 1.48% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 09, 2025 | Chiplock Mark | EVP, CFO & CAO | Sell | $283.79K |
| Oct 13, 2025 | Chiplock Mark | EVP, CFO & CAO | Sell | $224.60K |
| Oct 13, 2025 | Chiplock Mark | EVP, CFO & CAO | Sell | $216.16K |
| Oct 13, 2025 | Chiplock Mark | EVP, CFO & CAO | Sell | $276.63K |
| Oct 07, 2025 | Chiplock Mark | EVP, CFO & CAO | Sell | $233.11K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | 8 |
| 2025 Q3 | - | 3 |
| 2025 Q2 | - | - |
| 2025 Q1 | 9 | 6 |
| 2024 Q4 | 3 | - |
AMRC Ownership FAQ
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