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person · Reporting owner

Sakellaris George P

Disclosed activity across 1 company

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17924
SEC CIK
0001496665

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Ameresco, Inc.AMRC · Entity 4847Director · Chief Executive Officer · 10% ownerSeptember 10, 2026September 14, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Ameresco, Inc.

Report date September 10, 2026 · Filed September 14, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect1,019,847 Reported balance After 2026-09-10 transaction · row 1
1 source row

Row 1 · 2026-09-10 · Exercise / conversion · Acquired 6,250 · Balance 1,019,847

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect11,250 Reported balance After 2026-09-10 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-09-10 · Exercise / conversion · Disposed 6,250 · Balance 11,250

F3: Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock").

F4: Each RSUs represents a contingent right to receive one share of Common Stock and vest over two years with 25% vesting on each 6-month anniversary of the applicable grant date.

F5: Represents RSUs granted at various dates.

Class A Common StockSEC Table I · non-derivativeIndirectBy trust1,100,000 Reported balance Holding disclosure · report date 2026-09-10 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 1,100,000

F1: Shares held by a trust for the benefit of the reporting person's children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

Class A Common StockSEC Table I · non-derivativeIndirectBy spouse200,000 Reported balance Holding disclosure · report date 2026-09-10 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 200,000

F2: The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: Shares held by a trust for the benefit of the reporting person's children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

F2: The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.

F3: Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock").

F4: Each RSUs represents a contingent right to receive one share of Common Stock and vest over two years with 25% vesting on each 6-month anniversary of the applicable grant date.

F5: Represents RSUs granted at various dates.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 03, 2021 Filed Sep 7, 2021 20:52 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 1,800 $71.03 $127,854.00
Disclosure

SEC source: 0001488139-21-000120 · wf-form4_163104794933127.xml · nonDerivative · entry 5

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,098,493

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.00 to $71.10, inclusive.

Read SEC document
September 03, 2021 Filed Sep 7, 2021 20:52 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 11,312 $71.91 $813,445.92
Disclosure

SEC source: 0001488139-21-000120 · wf-form4_163104794933127.xml · nonDerivative · entry 4

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,100,293

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.25 to $72.22, inclusive.

Read SEC document
September 02, 2021 Filed Sep 7, 2021 20:52 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 772 $70.13 $54,140.36
Disclosure

SEC source: 0001488139-21-000120 · wf-form4_163104794933127.xml · nonDerivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,111,605

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.97 to $70.21, inclusive.

Read SEC document
September 02, 2021 Filed Sep 7, 2021 20:52 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 21,312 $70.84 $1,509,742.08
Disclosure

SEC source: 0001488139-21-000120 · wf-form4_163104794933127.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,112,377

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.25 to $71.22, inclusive.

Read SEC document
September 02, 2021 Filed Sep 7, 2021 20:52 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 15,621 $71.59 $1,118,307.39
Disclosure

SEC source: 0001488139-21-000120 · wf-form4_163104794933127.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,133,689

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.24 to $72.22, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (1) through (5) to this Form 4.

Read SEC document
September 01, 2021 Filed Sep 2, 2021 21:17 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 5,582 $69.30 $386,832.60
Disclosure

SEC source: 0001488139-21-000116 · wf-form4_163061743573979.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,149,310

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.00 to $69.61, inclusive.

Read SEC document
August 31, 2021 Filed Sep 2, 2021 21:17 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 3,068 $69.13 $212,103.11
Disclosure

SEC source: 0001488139-21-000116 · wf-form4_163061743573979.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,154,892

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.00 to $69.37, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (1) and (2) to this Form 4.

Read SEC document
August 30, 2021 Filed Aug 31, 2021 20:57 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 800 $69.14 $55,310.40
Disclosure

SEC source: 0001488139-21-000114 · wf-form4_163044345646563.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,157,960

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.01 to $69.25, inclusive.

Read SEC document
August 27, 2021 Filed Aug 31, 2021 20:57 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 3,572 $69.26 $247,403.86
Disclosure

SEC source: 0001488139-21-000114 · wf-form4_163044345646563.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,158,760

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.01 to $69.60, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (1) and (2) to this Form 4.

Read SEC document
March 11, 2021 Filed Mar 15, 2021 20:58 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 105,000 $44.00 $4,620,000.00
Disclosure

SEC source: 0001488139-21-000046 · wf-form4_161584189776386.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,162,332

Read SEC document
March 05, 2021 Filed Mar 8, 2021 21:57 UTC Ameresco, Inc. AMRC · Entity 4847 GrantStock Option (right to purchase) · Derivative 250,000 $0.00 Strike: $43.00 $0.00
Disclosure

SEC source: 0001488139-21-000039 · wf-form4_161524064288743.xml · derivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,000

Underlying: Class A Common Stock · 250,000 shares

Expires 2031-03-04

F2 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 5, 2022, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

Read SEC document
March 04, 2021 Filed Mar 8, 2021 21:57 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 100,000 $44.00 $4,400,000.00
Disclosure

SEC source: 0001488139-21-000039 · wf-form4_161524064288743.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By trust

Disclosed balance after: 1,075,000

F1 · ownership.nature: Shares held by a trust for the benefit of the reporting person's children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

Read SEC document
March 04, 2021 Filed Mar 8, 2021 21:57 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 528,264 $44.00 $23,243,616.00
Disclosure

SEC source: 0001488139-21-000039 · wf-form4_161524064288743.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,267,332

Read SEC document
February 03, 2021 Filed Feb 4, 2021 21:19 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 4,202 $62.84 $264,066.29
Disclosure

SEC source: 0001488139-21-000022 · wf-form4_161247354742947.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,795,596

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.25 to $64.11, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
February 01, 2021 Filed Feb 3, 2021 21:40 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 30,440 $62.75 $1,909,957.80
Disclosure

SEC source: 0001488139-21-000020 · wf-form4_161238840583288.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,799,798

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.32 to $64.37, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
February 01, 2021 Filed Feb 3, 2021 21:40 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 6,436 $58.45 $376,152.02
Disclosure

SEC source: 0001488139-21-000020 · wf-form4_161238840583288.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,830,238

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.89 to $59.38, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 29, 2021 Filed Feb 1, 2021 22:00 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 6,224 $56.78 $353,380.05
Disclosure

SEC source: 0001488139-21-000019 · wf-form4_161221681019377.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,836,674

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.41 to $58.04, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
January 28, 2021 Filed Feb 1, 2021 22:00 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 3,100 $55.69 $172,642.10
Disclosure

SEC source: 0001488139-21-000019 · wf-form4_161221681019377.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,842,898

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.67 to $56.73, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 27, 2021 Filed Feb 2, 2022 23:27 UTC Ameresco, Inc. AMRC · Entity 4847 GiftClass A Common Stock 200,000 $0.00 $0.00
Disclosure

SEC source: 0001488139-22-000002 · wf-form5_164384444346952.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 200,000

F1 · kind: This transaction involved a gift of securities by the reporting person to his spouse. The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.

Read SEC document
January 27, 2021 Filed Feb 2, 2022 23:27 UTC Ameresco, Inc. AMRC · Entity 4847 GiftClass A Common Stock 200,000 $0.00 $0.00
Disclosure

SEC source: 0001488139-22-000002 · wf-form5_164384444346952.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 762,332

F1 · kind: This transaction involved a gift of securities by the reporting person to his spouse. The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.

Read SEC document
January 26, 2021 Filed Jan 28, 2021 21:26 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 8,534 $55.43 $473,065.22
Disclosure

SEC source: 0001488139-21-000018 · wf-form4_161186914600132.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,845,998

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.41 to $58.35, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
January 26, 2021 Filed Jan 28, 2021 21:26 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 20,628 $60.74 $1,252,882.84
Disclosure

SEC source: 0001488139-21-000018 · wf-form4_161186914600132.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,854,532

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.10 to $61.95, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 25, 2021 Filed Jan 26, 2021 21:31 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 11,706 $58.06 $679,697.18
Disclosure

SEC source: 0001488139-21-000013 · wf-form4_161169665563218.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,875,160

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.83 to $60.04, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
January 22, 2021 Filed Jan 26, 2021 21:31 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 3,900 $58.38 $227,689.80
Disclosure

SEC source: 0001488139-21-000013 · wf-form4_161169665563218.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,886,866

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.41 to $59.09, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 21, 2021 Filed Jan 22, 2021 21:42 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 5,267 $58.90 $310,242.10
Disclosure

SEC source: 0001488139-21-000010 · wf-form4_161135173309501.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,890,766

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.24 to $59.58, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
January 20, 2021 Filed Jan 22, 2021 21:42 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 5,684 $58.02 $329,774.31
Disclosure

SEC source: 0001488139-21-000010 · wf-form4_161135173309501.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,896,033

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.85 to $59.00, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 19, 2021 Filed Jan 20, 2021 21:37 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 18,877 $57.06 $1,077,046.11
Disclosure

SEC source: 0001488139-21-000008 · wf-form4_161117863124427.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,901,717

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.79 to $57.93, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
January 15, 2021 Filed Jan 20, 2021 21:37 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 14,385 $54.63 $785,910.09
Disclosure

SEC source: 0001488139-21-000008 · wf-form4_161117863124427.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,920,594

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.99 to $57.20, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
January 14, 2021 Filed Jan 15, 2021 21:50 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 37,317 $58.10 $2,168,080.38
Disclosure

SEC source: 0001488139-21-000005 · wf-form4_161074742166498.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,934,979

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $59.57, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

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January 13, 2021 Filed Jan 15, 2021 21:50 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 40,674 $59.57 $2,423,112.88
Disclosure

SEC source: 0001488139-21-000005 · wf-form4_161074742166498.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,972,296

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.49 to $60.08, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

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January 12, 2021 Filed Jan 13, 2021 21:39 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 45,894 $59.01 $2,708,159.05
Disclosure

SEC source: 0001488139-21-000004 · wf-form4_161057397229383.xml · nonDerivative · entry 4

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,012,970

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.78 to $59.97, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (4) to this Form 4.

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January 11, 2021 Filed Jan 13, 2021 21:39 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 64,889 $58.25 $3,779,719.36
Disclosure

SEC source: 0001488139-21-000004 · wf-form4_161057397229383.xml · nonDerivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,058,864

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.19 to $59.57, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

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December 10, 2020 Filed Jan 13, 2021 21:39 UTC Ameresco, Inc. AMRC · Entity 4847 GiftClass A Common Stock 250,000 $0.00 $0.00
Disclosure

SEC source: 0001488139-21-000004 · wf-form4_161057397229383.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By trust

Disclosed balance after: 1,175,000

F1 · kind: This transaction involved a gift of securities by the reporting person to a trust for the benefit of his children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

F1 · ownership.nature: This transaction involved a gift of securities by the reporting person to a trust for the benefit of his children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

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December 10, 2020 Filed Jan 13, 2021 21:39 UTC Ameresco, Inc. AMRC · Entity 4847 GiftClass A Common Stock 250,000 $0.00 $0.00
Disclosure

SEC source: 0001488139-21-000004 · wf-form4_161057397229383.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,123,753

F1 · kind: This transaction involved a gift of securities by the reporting person to a trust for the benefit of his children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.

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December 08, 2020 Filed Dec 10, 2020 21:19 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 300 $45.01 $13,503.00
Disclosure

SEC source: 0001488139-20-000128 · wf-form4_160763513751487.xml · nonDerivative · entry 4

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,373,753

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December 08, 2020 Filed Dec 10, 2020 21:19 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 100 $45.02 $4,502.00
Disclosure

SEC source: 0001488139-20-000128 · wf-form4_160763513751487.xml · nonDerivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,374,053

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December 08, 2020 Filed Dec 10, 2020 21:19 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 500 $45.00 $22,500.00
Disclosure

SEC source: 0001488139-20-000128 · wf-form4_160763513751487.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,374,153

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December 08, 2020 Filed Dec 10, 2020 21:19 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 707 $45.00 $31,815.00
Disclosure

SEC source: 0001488139-20-000128 · wf-form4_160763513751487.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,374,653

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December 01, 2020 Filed Dec 2, 2020 21:36 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 7,859 $45.01 $353,733.59
Disclosure

SEC source: 0001488139-20-000112 · wf-form4_160694497999541.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,375,360

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.02, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

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November 24, 2020 Filed Nov 25, 2020 22:17 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 12,377 $45.76 $566,334.39
Disclosure

SEC source: 0001488139-20-000101 · wf-form4_160634265048578.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,383,219

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.25 to $45.87, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

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November 24, 2020 Filed Nov 25, 2020 22:17 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 33,941 $45.30 $1,537,459.42
Disclosure

SEC source: 0001488139-20-000101 · wf-form4_160634265048578.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,395,596

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.72, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

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November 09, 2020 Filed Nov 12, 2020 22:03 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 8,824 $45.08 $397,759.45
Disclosure

SEC source: 0001488139-20-000077 · wf-form4_160521857207424.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,429,537

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.26, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

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June 25, 2020 Filed Jun 26, 2020 21:44 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 80,289 $24.73 $1,985,466.68
Disclosure

SEC source: 0001488139-20-000051 · wf-form4_159320785511154.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,438,361

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.00 to $26.72, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (2) to this Form 4.

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June 24, 2020 Filed Jun 25, 2020 20:44 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 73,686 $24.60 $1,812,454.54
Disclosure

SEC source: 0001488139-20-000050 · wf-form4_159311785156335.xml · nonDerivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,518,650

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.76 to $26.19, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (3) to this Form 4.

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June 23, 2020 Filed Jun 25, 2020 20:44 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 146,025 $24.09 $3,517,158.15
Disclosure

SEC source: 0001488139-20-000050 · wf-form4_159311785156335.xml · nonDerivative · entry 2

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,592,336

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.05 to $25.99, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (2) to this Form 4.

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March 10, 2020 Filed Jun 25, 2020 20:44 UTC Ameresco, Inc. AMRC · Entity 4847 GiftClass A Common Stock 45,000 $0.00 $0.00
Disclosure

SEC source: 0001488139-20-000050 · wf-form4_159311785156335.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,738,361

Read SEC document
March 05, 2020 Filed Mar 6, 2020 12:51 UTC Ameresco, Inc. AMRC · Entity 4847 SaleClass A Common Stock 800,000 $21.25 $17,000,000.00
Disclosure

SEC source: 0001488139-20-000016 · wf-form4_158349904652028.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,783,361

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September 20, 2019 Filed Sep 23, 2019 20:25 UTC Ameresco, Inc. AMRC · Entity 4847 Exercise / conversionStock Option (right to purchase) · Derivative 200,000 $0.00 Strike: $6.06 $0.00
Disclosure

SEC source: 0001488139-19-000081 · wf-form4_156927031324406.xml · derivative · entry 3

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 200,000 shares

Expires 2019-09-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Of the shares subject to the option, 20% vest on September 30, 2010, and the remainder vest in 16 equal quarterly installments thereafter.

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September 20, 2019 Filed Sep 23, 2019 20:25 UTC Ameresco, Inc. AMRC · Entity 4847 Exercise / conversionClass A Common Stock 200,000 $6.06 $1,212,000.00
Disclosure

SEC source: 0001488139-19-000081 · wf-form4_156927031324406.xml · nonDerivative · entry 1

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,583,361

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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September 09, 2019 Filed Sep 10, 2019 20:20 UTC Ameresco, Inc. AMRC · Entity 4847 Exercise / conversionStock Option (right to purchase) · Derivative 114,900 $0.00 Strike: $6.06 $0.00
Disclosure

SEC source: 0001488139-19-000080 · wf-form4_156814683840189.xml · derivative · entry 4

Sakellaris George P · CIK 0001496665 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 114,900 shares

Expires 2019-09-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Of the shares subject to the option, 20% vest on September 30, 2010, and the remainder vest in 16 equal quarterly installments thereafter.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.