Ameresco, Inc.
DE ˙ DB ˙ US02361E1082
28,10 € ↓ -2,80 (-9,06%)
2026-06-04
DEL PRIS
SecurityDE:4AM / Ameresco, Inc.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership152,169 shares
Latest Disclosed Value $ 3,880,310
Bnp Paribas Arbitrage, Sa reports 18.51% increase in ownership of 4AM / Ameresco, Inc.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 152,169 shares of Ameresco, Inc. (DE:4AM) valued at $3,356,848 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 128,402 shares of Ameresco, Inc.. This represents a change in shares of 18.51% during the quarter. The current value of the position is $4,275,949 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F Ameresco Equity 02361E108 152,169 23,767 18.51 3,880 3.19 0.0002
2026-02-10 2025-12-31 13F Ameresco Equity 02361E108 128,402 122,362 2,025.86 3,761 1,761.39 0.0017
2025-11-13 2025-09-30 13F Ameresco Equity 02361E108 6,040 -84,028 -93.29 203 -85.23 0.0001
2025-08-14 2025-06-30 13F Ameresco Equity 02361E108 90,068 48,146 114.85 1,368 170.36 0.0008
2025-05-14 2025-03-31 13F Ameresco Equity 02361E108 41,922 -43,481 -50.91 506 -74.76 0.0003
2025-02-14 2024-12-31 13F Ameresco Equity 02361E108 85,403 -369 -0.43 2,005 -38.38 0.0011
2024-11-13 2024-09-30 13F Ameresco Equity 02361E108 85,772 12,688 17.36 3,254 54.58 0.0022
2024-08-13 2024-06-30 13F Ameresco Equity 02361E108 73,084 22,553 44.63 2,106 72.68 0.0017
2024-05-01 2024-03-31 13F Ameresco Equity 02361E108 50,531 -156,083 -75.54 1,219 -81.37 0.0011
2024-02-14 2023-12-31 13F/A-2 Ameresco Equity 02361E108 206,614 -122,720 -37.26 6,543 -48.48 0.0074
2024-02-07 2023-12-31 13F/A-1 Ameresco Equity 02361E108 206,614 -122,720 6,543 0.0009
2024-02-07 2023-12-31 13F Ameresco Equity 02361E108 206,614 6,543
2023-11-14 2023-09-30 13F Ameresco Equity 02361E108 329,334 247,697 303.41 12,699 219.87 0.0163
2023-08-09 2023-06-30 13F Ameresco Equity 02361E108 81,637 64,494 376.21 3,970 370.94 0.0050
2023-05-12 2023-03-31 13F AMERESCO EQUITY 02361E108 17,143 12,375 259.54 844 209.93 0.0012
2023-02-14 2022-12-31 13F Ameresco Equity 02361E108 4,768 -5,470 -53.43 272 -60.00 0.0004
2022-11-16 2022-09-30 13F/A-1 Ameresco Equity 02361E108 10,238 3,184 45.14 681 111.84 0.0011
2022-11-15 2022-09-30 13F Ameresco Equity 02361E108 10,238 3,184 681 0.0002
2022-08-12 2022-06-30 13F Ameresco Equity 02361E108 7,054 4,248 151.39 321 43.95 0.0005
2022-05-18 2022-03-31 13F/A-1 Ameresco Equity 02361E108 2,806 -3,726 -57.04 223 -58.00 0.0003
2022-02-09 2021-12-31 13F AMERESCO EQUITY 02361E108 6,532 641 10.88 532 54.36 0.0008
2021-11-16 2021-09-30 13F/A-1 AMERESCO EQUITY 02361E108 5,891 4,738 410.93 344 377.78 0.0005
2021-11-12 2021-09-30 13F AMERESCO EQUITY 02361E108 5,671 4,518 189 0.0000
2021-08-10 2021-06-30 13F AMERESCO EQUITY 02361E108 1,153 -2,157 -65.17 72 -55.00 0.0001
2021-05-07 2021-03-31 13F AMERESCO EQUITY 02361E108 3,310 -1,078 -24.57 161 -30.13 0.0002
2021-02-10 2020-12-31 13F AMERESCO EQUITY 02361E108 4,388 -1,283 -22.62 229 21.16 0.0004
2020-10-30 2020-09-30 13F AMERESCO EQUITY 02361E108 5,671 4,788 542.24 189 687.50 0.0003
2020-08-06 2020-06-30 13F AMERESCO EQUITY 02361E108 883 -6,110 -87.37 25 -79.83 0.0000
2020-05-13 2020-03-31 13F AMERESCO EQUITY 02361E108 6,993 1,445 26.05 119 22.68 0.0002
2020-02-12 2019-12-31 13F AMERESCO EQUITY 02361E108 5,548 2,360 74.03 97 90.20 0.0002
2019-11-07 2019-09-30 13F AMERESCO EQUITY 02361E108 3,188 -68 -2.09 51 8.51 0.0001
2019-07-30 2019-06-30 13F AMERESCO EQUITY 02361E108 3,256 -689 -17.47 48 -25.40 0.0001
2019-04-25 2019-03-31 13F AMERESCO EQUITY 02361E108 3,945 3,297 508.80 64 600.00 0.0001
2019-02-12 2018-12-31 13F AMERESCO EQUITY 02361E108 648 6 0.93 9 12.50 0.0000
2018-11-07 2018-09-30 13F AMERESCO EQUITY 02361E108 642 0 0.00 9 14.29 0.0000
2018-07-25 2018-06-30 13F AMERESCO EQUITY 02361E108 642 -3,384 -84.05 8 -86.54 0.0000
2018-05-11 2018-03-31 13F AMERESCO EQUITY 02361E108 4,026 -1,764 -30.47 52 6.12 0.0001
2018-03-05 2017-12-31 13F/A-1 AMERESCO EQUITY 02361E108 5,790 3,588 162.94 50 188.24 0.0001
2018-02-01 2017-12-31 13F AMERESCO EQUITY 02361E108 5,790 3,588 50
2017-11-03 2017-09-30 13F AMERESCO STOCK 02361E108 2,202 -154 -6.54 17 -5.56 0.0000
2017-08-03 2017-06-30 13F AMERESCO STOCK 02361E108 2,356 2,208 1,491.89 18 1,772.14 0.0001
2017-05-03 2017-03-31 13F AMERESCO STOCK 02361E108 148 -812 -84.58 1 -100.00 0.0000
2017-02-14 2016-12-31 13F AMERESCO STOCK 02361E108 960 -487 -33.66 5 -28.57 0.0000
2016-10-05 2016-09-30 13F * AMERESCO INC CL A STOCK 02361E108 1,447 604 71.65 8 133.33 0.0000
2016-07-06 2016-06-30 13F * AMERESCO INC CL A STOCK 02361E108 843 843 0.00 4 0.0000
2016-04-22 2016-03-31 13F * AMERESCO INC CL A STOCK 02361E108 0 -1,850 -100.00 0 -100.00
2016-04-19 2015-12-31 13F/A-1 * AMERESCO INC CL A STOCK 02361E108 1,850 -2,299 -55.41 12 -54.17 0.0001
2016-02-10 2015-12-31 13F * AMERESCO INC CL A STOCK 02361E108 1,850 12
2015-11-13 2015-09-30 13F * AMERESCO INC CL A STOCK 02361E108 4,149 2,480 148.59 24 100.00 0.0001
2015-08-14 2015-06-30 13F AMERESCO INC CL A STOCK 02361E108 1,669 1,213 266.01 13 300.00 0.0000
2015-05-15 2015-03-31 13F * AMERESCO INC CL A STOCK 02361E108 456 456 0.00 3 0.0000
2015-02-11 2014-12-31 13F * AMERESCO INC CL A STOCK 02361E108 0 -1,156 -100.00 0 -100.00
2014-11-12 2014-09-30 13F * AMERESCO INC CL A STOCK 02361E108 1,156 877 314.34 8 600.00 0.0000
2014-08-14 2014-06-30 13F/A-1 * AMERESCO INC CL A STOCK 02361E108 279 26 10.28 2 -50.00 0.0000
2014-08-14 2014-06-30 13F AMERESCO INC CL A STOCK 02361E108 279 2
2014-04-02 2013-12-31 13F/A-1 AMERESCO STOCK 02361E108 253 253 2 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.