Ameresco, Inc.
DE ˙ DB ˙ US02361E1082
29,90 € ↑0,40 (1,36%)
2026-06-02
DEL PRIS
SecurityDE:4AM / Ameresco, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership0 shares
Ownership 0.00%
Vanguard Group Inc ownership in 4AM / Ameresco, Inc.

2026-03-26 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Ameresco, Inc. (DE:4AM). This represents 0.0 percent ownership of the company. In their previous filing dated 2025-04-30 , Vanguard Group Inc had reported owning 2,640,429 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-03-26 2026-03-26 13G/A 2,640,429 0 -100.00 0.00 -100.00
2025-04-30 2025-04-30 13G/A 3,109,535 2,640,429 -15.09 7.64 -15.86
2024-02-13 2024-02-13 13G/A 3,054,020 3,109,535 1.82 9.08 0.78
2023-02-09 2023-02-09 13G/A 2,770,106 3,054,020 10.25 9.01 9.21
2022-02-09 2022-02-09 13G 2,770,106 8.25

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F AMERESCO CL A 02361E108 2,414,838 2,478 0.10 70,731 -12.69 0.0010
2025-11-07 2025-09-30 13F AMERESCO CL A 02361E108 2,412,360 -88,529 -3.54 81,007 113.24 0.0012
2025-08-11 2025-06-30 13F AMERESCO CL A 02361E108 2,500,889 -139,540 -5.28 37,989 19.10 0.0006
2025-05-09 2025-03-31 13F AMERESCO CL A 02361E108 2,640,429 -543,835 -17.08 31,896 -57.34 0.0006
2025-02-11 2024-12-31 13F AMERESCO CL A 02361E108 3,184,264 37,359 1.19 74,767 -37.38 0.0013
2024-11-13 2024-09-30 13F AMERESCO CL A 02361E108 3,146,905 2,980 0.09 119,394 31.82 0.0021
2024-08-13 2024-06-30 13F AMERESCO CL A 02361E108 3,143,925 -1,913 -0.06 90,576 19.32 0.0017
2024-05-10 2024-03-31 13F AMERESCO CL A 02361E108 3,145,838 36,303 1.17 75,909 -22.92 0.0015
2024-03-11 2023-12-31 13F/A-1 AMERESCO CL A 02361E108 3,109,535 41,199 1.34 98,479 -16.77 0.0022
2024-02-14 2023-12-31 13F AMERESCO CL A 02361E108 3,109,535 41,199 98,479 0.0019
2023-12-18 2023-09-30 13F/A-1 AMERESCO CL A 02361E108 3,068,336 -31,449 -1.01 118,315 -21.51 0.0029
2023-11-14 2023-09-30 13F AMERESCO CL A 02361E108 3,068,336 -31,449 118,315 0.0005
2023-08-14 2023-06-30 13F AMERESCO CL A 02361E108 3,099,785 3,760 0.12 150,743 -1.08 0.0036
2023-07-14 2023-03-31 13F/A-1 AMERESCO CL A 02361E108 3,096,025 42,005 1.38 152,386 -12.68 0.0039
2023-05-15 2023-03-31 13F AMERESCO CL A 02361E108 3,096,025 42,005 152,386 0.0039
2023-02-10 2022-12-31 13F AMERESCO CL A 02361E108 3,054,020 61,282 2.05 174,507 -12.29 0.0048
2022-11-14 2022-09-30 13F AMERESCO CL A 02361E108 2,992,738 179,495 6.38 198,956 55.23 0.0059
2022-08-12 2022-06-30 13F AMERESCO CL A 02361E108 2,813,243 16,269 0.58 128,171 -42.36 0.0036
2022-05-13 2022-03-31 13F AMERESCO CL A 02361E108 2,796,974 26,868 0.97 222,359 -1.44 0.0053
2022-02-14 2021-12-31 13F AMERESCO CL A 02361E108 2,770,106 30,958 1.13 225,598 40.96 0.0051
2021-11-12 2021-09-30 13F AMERESCO CL A 02361E108 2,739,148 788,396 40.41 160,049 30.81 0.0040
2021-08-13 2021-06-30 13F AMERESCO CL A 02361E108 1,950,752 58,862 3.11 122,352 32.99 0.0030
2021-05-14 2021-03-31 13F AMERESCO CL A 02361E108 1,891,890 647,002 51.97 92,002 41.47 0.0025
2021-02-12 2020-12-31 13F AMERESCO CL A 02361E108 1,244,888 47,759 3.99 65,032 62.64 0.0019
2020-11-16 2020-09-30 13F AMERESCO CL A 02361E108 1,197,129 91,949 8.32 39,985 30.24 0.0013
2020-08-14 2020-06-30 13F AMERESCO CL A 02361E108 1,105,180 160,122 16.94 30,701 90.77 0.0011
2020-05-15 2020-03-31 13F AMERESCO CL A 02361E108 945,058 67,291 7.67 16,093 4.77 0.0007
2020-02-14 2019-12-31 13F AMERESCO CL A 02361E108 877,767 -4,887 -0.55 15,361 8.30 0.0005
2019-11-14 2019-09-30 13F AMERESCO CL A 02361E108 882,654 12,008 1.38 14,184 10.60 0.0005
2019-08-14 2019-06-30 13F AMERESCO CL A 02361E108 870,646 37,990 4.56 12,825 -4.80 0.0005
2019-05-15 2019-03-31 13F AMERESCO CL A 02361E108 832,656 14,521 1.77 13,472 16.79 0.0005
2019-02-14 2018-12-31 13F AMERESCO CL A 02361E108 818,135 65,757 8.74 11,535 12.32 0.0005
2018-12-13 2018-09-30 13F/A-2 AMERESCO CL A 02361E108 752,378 525 0.07 10,270 13.83 0.0004
2018-11-23 2018-09-30 13F/A-1 AMERESCO CL A 02361E108 752,378 0 10,270 0.0004
2018-11-14 2018-09-30 13F AMERESCO CL A 02361E108 752,378 525 10,270
2018-08-14 2018-06-30 13F AMERESCO CL A 02361E108 751,853 29,096 4.03 9,022 -3.98 0.0004
2018-05-15 2018-03-31 13F AMERESCO CL A 02361E108 722,757 97,942 15.68 9,396 74.84 0.0004
2018-02-14 2017-12-31 13F AMERESCO CL A 02361E108 624,815 108,267 20.96 5,374 33.38 0.0002
2017-11-14 2017-09-30 13F AMERESCO CL A 02361E108 516,548 73,956 16.71 4,029 18.22 0.0002
2017-08-24 2017-06-30 13F/A-1 AMERESCO CL A 02361E108 442,592 -276,032 -38.41 3,408 -27.60 0.0002
2017-08-11 2017-06-30 13F AMERESCO CL A 02361E108 442,592 -276,032 3,408
2017-05-12 2017-03-31 13F AMERESCO CL A 02361E108 718,624 59,336 9.00 4,707 29.78 0.0002
2017-02-14 2016-12-31 13F AMERESCO CL A 02361E108 659,288 663 0.10 3,627 4.71 0.0002
2016-11-14 2016-09-30 13F AMERESCO CL A 02361E108 658,625 6,106 0.94 3,464 21.50 0.0002
2016-08-10 2016-06-30 13F AMERESCO CL A 02361E108 652,519 -7,365 -1.12 2,851 -9.41 0.0002
2016-05-13 2016-03-31 13F AMERESCO CL A 02361E108 659,884 27,081 4.28 3,147 -20.43 0.0002
2016-02-08 2015-12-31 13F AMERESCO CL A 02361E108 632,803 21,867 3.58 3,955 10.11 0.0003
2015-11-12 2015-09-30 13F/A-1 AMERESCO CL A 02361E108 610,936 6,675 1.10 3,592 -22.28 0.0002
2015-11-12 2015-09-30 13F/A-1 AMERESCO CL A 02361E108 610,936 6,675 3,592 0.0002
2015-11-12 2015-09-30 13F AMERESCO CL A 02361E108 7,569,757 278,614
2015-08-13 2015-06-30 13F AMERESCO CL A 02361E108 604,261 9,305 1.56 4,622 4.97 0.0003
2015-05-15 2015-03-31 13F/A-1 AMERESCO CL A 02361E108 594,956 17,963 3.11 4,403 9.01 0.0003
2015-05-14 2015-03-31 13F AMERESCO CL A 02361E108 594,956 4,403
2015-02-12 2014-12-31 13F AMERESCO CL A 02361E108 576,993 7,682 1.35 4,039 3.54 0.0003
2014-11-12 2014-09-30 13F AMERESCO CL A 02361E108 569,311 12,614 2.27 3,901 -0.31 0.0003
2014-08-11 2014-06-30 13F AMERESCO CL A 02361E108 556,697 36,065 6.93 3,913 -0.58 0.0003
2014-05-13 2014-03-31 13F AMERESCO CL A 02361E108 520,632 54,122 11.60 3,936 -12.67 0.0003
2014-02-12 2013-12-31 13F AMERESCO CL A 02361E108 466,510 13,326 2.94 4,507 -0.75 0.0004
2013-11-07 2013-09-30 13F AMERESCO CL A 02361E108 453,184 3,907 0.87 4,541 12.18 0.0004
2013-08-13 2013-06-30 13F AMERESCO CL A 02361E108 449,277 449,277 4,048 0.0004
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.