AMRC

SEC source: 0001488139-22-000053 · wf-form4_164729274043052.xml · nonDerivative · entry 1

Chiplock Mark · CIK 0001755243 · SVP & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,999

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.

SEC source: 0001488139-22-000051 · wf-form4_164695426711371.xml · derivative · entry 4

Foy Douglas I · CIK 0001496492 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 5,000 shares

Expires 2022-05-30

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 May 31, 2013, and the remainder vest on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000051 · wf-form4_164695426711371.xml · nonDerivative · entry 3

Foy Douglas I · CIK 0001496492 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.66 to $77.22 , 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 this footnotes (1) and (2) to this Form 4.

SEC source: 0001488139-22-000051 · wf-form4_164695426711371.xml · nonDerivative · entry 2

Foy Douglas I · CIK 0001496492 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,744

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.57 to $78.45, inclusive.

SEC source: 0001488139-22-000051 · wf-form4_164695426711371.xml · nonDerivative · entry 1

Foy Douglas I · CIK 0001496492 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,000

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.

SEC source: 0001488139-22-000040 · wf-form4_164677964634352.xml · derivative · entry 5

Hole Spencer Doran · CIK 0001783379 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 16,000 shares

Expires 2029-08-06

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.

SEC source: 0001488139-22-000040 · wf-form4_164677964634352.xml · nonDerivative · entry 3

Hole Spencer Doran · CIK 0001783379 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.98 to $76.26, 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 footnotes (1) and (2) to this Form 4.

SEC source: 0001488139-22-000040 · wf-form4_164677964634352.xml · nonDerivative · entry 2

Hole Spencer Doran · CIK 0001783379 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,835

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.97 to $75.92, inclusive.

SEC source: 0001488139-22-000040 · wf-form4_164677964634352.xml · nonDerivative · entry 1

Hole Spencer Doran · CIK 0001783379 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,000

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.

SEC source: 0001488139-22-000036 · wf-form4_164677952170006.xml · derivative · entry 4

Chiplock Mark · CIK 0001755243 · SVP & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

Underlying: Class A Common Stock · 3,000 shares

Expires 2028-03-07

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% vested on March 8, 2019, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000036 · wf-form4_164677952170006.xml · nonDerivative · entry 2

Chiplock Mark · CIK 0001755243 · SVP & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.00 to $73.13, 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.

SEC source: 0001488139-22-000036 · wf-form4_164677952170006.xml · nonDerivative · entry 1

Chiplock Mark · CIK 0001755243 · SVP & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

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.

SEC source: 0001488139-22-000040 · wf-form4_164677964634352.xml · derivative · entry 4

Hole Spencer Doran · CIK 0001783379 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,000

Underlying: Class A Common Stock · 36,000 shares

Expires 2029-08-06

F3 · shares: On August 6, 2019, the reporting person was granted an option to purchase 40,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 36,000 shares.

SEC source: 0001488139-22-000044 · wf-form4_164677973576373.xml · derivative · entry 1

Murley Thomas S · CIK 0001688408 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000038 · wf-form4_164677956958289.xml · derivative · entry 1

Foy Douglas I · CIK 0001496492 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000047 · wf-form4_164677980806852.xml · derivative · entry 1

Sutton Joseph W. · CIK 0001496494 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000037 · wf-form4_164677954800177.xml · derivative · entry 1

Corrsin David J · CIK 0001496596 · Director · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Class A Common Stock · 35,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 50,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 35,000 shares.

SEC source: 0001488139-22-000034 · wf-form4_164677945332650.xml · derivative · entry 2

Bakas Michael T · CIK 0001496601 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2032-03-03

F2 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000034 · wf-form4_164677945332650.xml · derivative · entry 1

Bakas Michael T · CIK 0001496601 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 50,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 40,000 shares.

SEC source: 0001488139-22-000045 · wf-form4_164677976554722.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,000

Underlying: Class A Common Stock · 320,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 350,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option vested as to 320,000 shares.

SEC source: 0001488139-22-000042 · wf-form4_164677968830428.xml · derivative · entry 1

Maltezos Louis P · CIK 0001496402 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2032-03-03

F1 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000049 · wf-form4_164677988168073.xml · derivative · entry 1

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000046 · wf-form4_164677978472057.xml · derivative · entry 1

STAVROPOULOS NICKOLAS · CIK 0001195025 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30.000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000048 · wf-form4_164677986052080.xml · derivative · entry 1

Todd Lauren · CIK 0001857764 · SVP - HR and Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Class A Common Stock · 15,000 shares

Expires 2032-03-03

F1 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000043 · wf-form4_164677971613021.xml · derivative · entry 1

Miller Jennifer L · CIK 0001633385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 30,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option fully vested.

SEC source: 0001488139-22-000036 · wf-form4_164677952170006.xml · derivative · entry 3

Chiplock Mark · CIK 0001755243 · SVP & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,000

Underlying: Class A Common Stock · 36,000 shares

Expires 2029-08-06

F2 · shares: On August 6, 2019, the reporting person was granted an option to purchase 40,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 36,000 shares.

SEC source: 0001488139-22-000041 · wf-form4_164677966380833.xml · derivative · entry 1

MacIntosh Britta · CIK 0001842602 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2032-03-03

F1 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000039 · wf-form4_164677962088139.xml · derivative · entry 1

Georgeoff Robert · CIK 0001843683 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2032-03-03

F1 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000035 · wf-form4_164677947459483.xml · derivative · entry 2

Bulgarino Nicole E · CIK 0001640972 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2032-03-03

F2 · derivative.exercise_date: Of the shares subject to the option, 20% vest on March 4, 2023, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-22-000035 · wf-form4_164677947459483.xml · derivative · entry 1

Bulgarino Nicole E · CIK 0001640972 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-08-06

F1 · shares: On August 6, 2019, the reporting person was granted an option to purchase 50,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 40,000 shares.

SEC source: 0001488139-21-000151 · wf-form4_163770303860096.xml · nonDerivative · entry 3

Bulgarino Nicole E · CIK 0001640972 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 474

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from o $95.00 to $95.08, 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 footnotes (1) and (2) to this Form 4.

SEC source: 0001488139-21-000151 · wf-form4_163770303860096.xml · nonDerivative · entry 2

Bulgarino Nicole E · CIK 0001640972 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,841

SEC source: 0001488139-21-000151 · wf-form4_163770303860096.xml · nonDerivative · entry 1

Bulgarino Nicole E · CIK 0001640972 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,141

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.52 to $97.46, inclusive.

SEC source: 0001488139-22-000002 · wf-form5_164384444346952.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: 747,332

SEC source: 0001488139-21-000150 · wf-form4_163727152768510.xml · derivative · entry 3

Georgeoff Robert · CIK 0001843683 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,139

Underlying: Class A Common Stock · 8,000 shares

Expires 2026-05-10

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.

SEC source: 0001488139-21-000150 · wf-form4_163727152768510.xml · nonDerivative · entry 2

Georgeoff Robert · CIK 0001843683 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.57 to $94.35, 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 (1) to this Form 4.

SEC source: 0001488139-21-000150 · wf-form4_163727152768510.xml · nonDerivative · entry 1

Georgeoff Robert · CIK 0001843683 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

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.

SEC source: 0001488139-21-000149 · wf-form4_163675561879056.xml · derivative · entry 3

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Class A Common Stock · 2,000 shares

Expires 2027-05-31

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.

F1 · derivative.exercise_date: Of the shares subject to the option, 20% vest on June 1, 2018, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-21-000149 · wf-form4_163675561879056.xml · nonDerivative · entry 2

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,176

SEC source: 0001488139-21-000149 · wf-form4_163675561879056.xml · nonDerivative · entry 1

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,176

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.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · derivative · entry 8

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,000

Underlying: Class A Common Stock · 2,000 shares

Expires 2027-05-31

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.

F4 · derivative.exercise_date: Of the shares subject to the option, 20% vest on June 1, 2018, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 5

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,176

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.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · derivative · entry 7

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Class A Common Stock · 2,000 shares

Expires 2027-05-31

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.

F4 · derivative.exercise_date: Of the shares subject to the option, 20% vest on June 1, 2018, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 6

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,176

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 4

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,176

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.16 to $99.61, 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)-(3) to this Form 4.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 3

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,335

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.87 to $100.70, inclusive.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 2

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,616

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.86 to $101.70, inclusive.

SEC source: 0001488139-21-000148 · wf-form4_163658277172397.xml · nonDerivative · entry 1

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,176

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.

SEC source: 0001488139-21-000147 · wf-form4_163640973238730.xml · derivative · entry 8

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 4,000 shares

Expires 2026-05-25

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.

F5 · derivative.exercise_date: Of the shares subject to the option, 20% vest on May 26, 2017, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

SEC source: 0001488139-21-000147 · wf-form4_163640973238730.xml · nonDerivative · entry 6

WISNESKI FRANCIS V JR · CIK 0001263052 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,176

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.15 to $96.61, 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)-(4) to this Form 4.