Ameresco, Inc.
DE ˙ DB ˙ US02361E1082
30,90 € ↑1,00 (3,34%)
2026-06-03
DEL PRIS
SecurityDE:4AM / Ameresco, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership418,130 shares
Latest Disclosed Value $ 10,662,316
UBS Group AG reports 5.22% increase in ownership of 4AM / Ameresco, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 418,130 shares of Ameresco, Inc. (DE:4AM) valued at $9,223,948 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 397,386 shares of Ameresco, Inc.. This represents a change in shares of 5.22% during the quarter. The current value of the position is $12,920,217 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F AMERESCO CL A 02361E108 418,130 20,744 5.22 10,662 -8.39 0.0003
2026-01-29 2025-12-31 13F AMERESCO CL A 02361E108 397,386 -51,667 -11.51 11,639 -22.81 0.0019
2025-11-13 2025-09-30 13F AMERESCO CL A 02361E108 449,053 155,614 53.03 15,079 238.32 0.0024
2025-08-14 2025-06-30 13F AMERESCO CL A 02361E108 293,439 94,691 47.64 4,457 85.71 0.0008
2025-05-13 2025-03-31 13F AMERESCO CL A 02361E108 198,748 -146,384 -42.41 2,401 -70.38 0.0004
2025-02-14 2024-12-31 13F AMERESCO CL A 02361E108 345,132 287,358 497.38 8,104 269.83 0.0015
2024-11-14 2024-09-30 13F AMERESCO CL A 02361E108 57,774 5,961 11.50 2,192 46.85 0.0005
2024-08-14 2024-06-30 13F AMERESCO CL A 02361E108 51,813 6,363 14.00 1,493 36.13 0.0004
2024-05-13 2024-03-31 13F AMERESCO CL A 02361E108 45,450 2,157 4.98 1,097 -20.06 0.0003
2024-02-09 2023-12-31 13F AMERESCO CL A 02361E108 43,293 28,249 187.78 1,371 136.38 0.0004
2023-11-09 2023-09-30 13F AMERESCO CL A 02361E108 15,044 10,271 215.19 580 150.00 0.0002
2023-08-11 2023-06-30 13F AMERESCO CL A 02361E108 4,773 -1,594 -25.04 232 -25.88 0.0001
2023-05-12 2023-03-31 13F AMERESCO CL A 02361E108 6,367 509 8.69 313 -6.29 0.0001
2023-02-08 2022-12-31 13F AMERESCO CL A 02361E108 5,858 -4,348 -42.60 335 -50.74 0.0001
2022-11-10 2022-09-30 13F AMERESCO CL A 02361E108 10,206 1,370 15.50 678 68.66 0.0003
2022-08-10 2022-06-30 13F AMERESCO CL A 02361E108 8,836 -7,577 -46.16 402 -69.17 0.0002
2022-05-16 2022-03-31 13F AMERESCO CL A 02361E108 16,413 -19,667 -54.51 1,304 -55.63 0.0004
2022-02-14 2021-12-31 13F AMERESCO CL A 02361E108 36,080 23,245 181.11 2,939 291.87 0.0008
2021-11-15 2021-09-30 13F AMERESCO CL A 02361E108 12,835 4,068 46.40 750 36.36 0.0002
2021-08-13 2021-06-30 13F AMERESCO CL A 02361E108 8,767 -33,401 -79.21 550 -73.17 0.0002
2021-05-12 2021-03-31 13F AMERESCO CL A 02361E108 42,168 28,492 208.34 2,050 187.11 0.0007
2021-02-11 2020-12-31 13F AMERESCO CL A 02361E108 13,676 5,684 71.12 714 167.42 0.0002
2020-11-12 2020-09-30 13F AMERESCO CL A 02361E108 7,992 -9,900 -55.33 267 -46.28 0.0001
2020-07-31 2020-06-30 13F AMERESCO CL A 02361E108 17,892 -4,062 -18.50 497 32.89 0.0002
2020-05-01 2020-03-31 13F AMERESCO CL A 02361E108 21,954 -16,211 -42.48 374 -43.93 0.0002
2020-02-14 2019-12-31 13F AMERESCO CL A 02361E108 38,165 8,735 29.68 667 41.01 0.0002
2019-11-14 2019-09-30 13F AMERESCO CL A 02361E108 29,430 13,931 89.88 473 107.46 0.0002
2019-08-14 2019-06-30 13F AMERESCO CL A 02361E108 15,499 4,277 38.11 228 25.27 0.0001
2019-05-14 2019-03-31 13F AMERESCO CL A 02361E108 11,222 -9,952 -47.00 182 -39.13 0.0001
2019-02-14 2018-12-31 13F AMERESCO CL A 02361E108 21,174 -220 -1.03 299 2.40 0.0001
2018-11-14 2018-09-30 13F AMERESCO CL A 02361E108 21,394 8,419 64.89 292 87.18 0.0001
2018-08-14 2018-06-30 13F AMERESCO CL A 02361E108 12,975 3,421 35.81 156 25.81 0.0001
2018-05-15 2018-03-31 13F AMERESCO CL A 02361E108 9,554 928 10.76 124 67.57 0.0001
2018-02-14 2017-12-31 13F AMERESCO CL A 02361E108 8,626 6,531 311.74 74 362.50 0.0000
2017-11-14 2017-09-30 13F AMERESCO CL A 02361E108 2,095 680 48.06 16 45.45 0.0000
2017-11-14 2017-06-30 13F/A-1 AMERESCO CL A 02361E108 1,415 -584 -29.21 11 -15.38 0.0000
2017-08-14 2017-06-30 13F AMERESCO CL A 02361E108 1,415 -584 11
2017-11-14 2017-03-31 13F/A-1 AMERESCO CL A 02361E108 1,999 -1,471 -42.39 13 -31.58 0.0000
2017-05-12 2017-03-31 13F AMERESCO CL A 02361E108 1,999 -1,471 13
2017-02-14 2016-12-31 13F AMERESCO CL A 02361E108 3,470 -1,337 -27.81 19 -24.00 0.0000
2016-11-14 2016-09-30 13F AMERESCO CL A 02361E108 4,807 -1,734 -26.51 25 -13.79 0.0000
2016-08-12 2016-06-30 13F AMERESCO CL A 02361E108 6,541 6,541 0.00 29 0.0000
2016-02-16 2015-12-31 13F AMERESCO CL A 02361E108 0 -4,565 -100.00 0 -100.00
2015-11-13 2015-09-30 13F AMERESCO CL A 02361E108 4,565 2,565 128.25 27 80.00 0.0000
2015-08-14 2015-06-30 13F AMERESCO CL A 02361E108 2,000 -22,063 -91.69 15 -91.57 0.0000
2015-05-14 2015-03-31 13F AMERESCO CL A 02361E108 24,063 -7,244 -23.14 178 -18.72 0.0001
2015-02-17 2014-12-31 13F AMERESCO CL A 02361E108 31,307 31,307 219 0.0002
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.