Ameresco Inc (AMRC)

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Insider transactions

A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.

Transaction date	Executive	Executive Title	Security Type	Acquisition / Disposal	Shares	Share price
Sep 15, 2026	MALTEZOS, LOUIS P	Co-President	Class A Common Stock	Disposal	592	22.46
Sep 15, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	476	22.46
Sep 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	1,625	0
Sep 10, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	6,250	0
Sep 10, 2026	CHRISTAKIS, PETER	Chief Operating Officer	Class A Common Stock	Acquisition	1,750	0
Sep 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Restricted Stock Unit	Disposal	1,625	0
Sep 10, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Restricted Stock Unit	Disposal	6,250	0
Sep 10, 2026	MALTEZOS, LOUIS P	Co-President	Class A Common Stock	Acquisition	2,125	0
Sep 10, 2026	BULGARINO, NICOLE E	Co-President	Class A Common Stock	Acquisition	1,875	0
Sep 10, 2026	CHRISTAKIS, PETER	Chief Operating Officer	Restricted Stock Unit	Disposal	1,750	0
Sep 10, 2026	MALTEZOS, LOUIS P	Co-President	Restricted Stock Unit	Disposal	2,125	0
Sep 10, 2026	BULGARINO, NICOLE E	Co-President	Restricted Stock Unit	Disposal	875	0
Aug 28, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	3,000	22.13
Aug 27, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	4,000	22.84
Aug 26, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	1,000	21.92
Aug 25, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	4,062	22.03
Aug 25, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	938	21.6
Aug 24, 2026	SUTTON, JOSEPH W.	Director	Class A Common Stock	Acquisition	9,700	20.87
Aug 24, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	5,000	20.91
Aug 24, 2026	MILLER, JENNIFER L	Director	Class A Common Stock	Acquisition	2,000	20.96
Aug 21, 2026	COX, BRIAN C	Director	Class A Common Stock	Acquisition	4,625	21.64
Aug 17, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Stock Option (right to purchase)	Acquisition	25,000	0
Aug 11, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	1,000	25.9
Aug 10, 2026	COX, BRIAN C	Director	Class A Common Stock	Acquisition	39,700	25.07
Aug 10, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	1,000	25.27
Aug 7, 2026	SAKELLARIS, GEORGE P	Director, Chief Executive Officer, 10% Owner	Class A Common Stock	Acquisition	5,000	25.95
Aug 1, 2026	COX, BRIAN C	Director	Restricted Stock Unit	Acquisition	5,132	0
Jun 4, 2026	MILLER, JENNIFER L	Director	Restricted Stock Unit	Disposal	10,435	0
Jun 4, 2026	SUTTON, JOSEPH W.	Director	Restricted Stock Unit	Acquisition	4,812	0
Jun 4, 2026	STAVROPOULOS, NICKOLAS	Director	Restricted Stock Unit	Disposal	10,435	0
Jun 4, 2026	MILLER, JENNIFER L	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	STAVROPOULOS, NICKOLAS	Director	Restricted Stock Unit	Acquisition	4,812	0
Jun 4, 2026	PATTON, CHARLES R.	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	SUTTON, JOSEPH W.	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	JOHNSON, CLAIRE D'OYLY-HUGHES	Director	Restricted Stock Unit	Disposal	10,435	0
Jun 4, 2026	MILLER, JENNIFER L	Director	Restricted Stock Unit	Acquisition	4,812	0
Jun 4, 2026	WISNESKI, FRANCIS V JR	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	WISNESKI, FRANCIS V JR	Director	Restricted Stock Unit	Acquisition	4,812	0
Jun 4, 2026	JOHNSON, CLAIRE D'OYLY-HUGHES	Director	Restricted Stock Unit	Acquisition	4,812	0
Jun 4, 2026	SUTTON, JOSEPH W.	Director	Restricted Stock Unit	Disposal	10,435	0
Jun 4, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	WISNESKI, FRANCIS V JR	Director	Restricted Stock Unit	Disposal	10,435	0
Jun 4, 2026	JOHNSON, CLAIRE D'OYLY-HUGHES	Director	Class A Common Stock	Acquisition	10,435	0
Jun 4, 2026	PATTON, CHARLES R.	Director	Restricted Stock Unit	Disposal	10,435	0
May 29, 2026	WISNESKI, FRANCIS V JR	Director	Class A Common Stock	Disposal	5,000	36.12
May 29, 2026	WISNESKI, FRANCIS V JR	Director	Class A Common Stock	Acquisition	5,000	5.8
May 29, 2026	WISNESKI, FRANCIS V JR	Director	Stock Option (right to puchase)	Disposal	5,000	0
May 19, 2026	WISNESKI, FRANCIS V JR	Director	Stock Option (right to puchase)	Disposal	10,000	0
May 19, 2026	WISNESKI, FRANCIS V JR	Director	Class A Common Stock	Acquisition	10,000	5.8
May 19, 2026	WISNESKI, FRANCIS V JR	Director	Class A Common Stock	Disposal	10,000	30.29
May 18, 2026	MILLER, JENNIFER L	Director	Class A Common Stock	Disposal	2,358	32.73
May 18, 2026	MILLER, JENNIFER L	Director	Stock Option (right to purchase)	Disposal	10,000	0
May 18, 2026	MILLER, JENNIFER L	Director	Class A Common Stock	Disposal	7,642	32.13
May 18, 2026	CHRISTAKIS, PETER	President-EastUSA, ProjectRisk	Stock Option (right to puchase)	Acquisition	30,000	0
May 18, 2026	BULGARINO, NICOLE E	President - Federal & Utility	Stock Option (right to puchase)	Acquisition	30,000	0
May 18, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Stock Option (right to puchase)	Acquisition	30,000	0
May 18, 2026	MILLER, JENNIFER L	Director	Class A Common Stock	Acquisition	10,000	4.74
May 15, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	1,355	16.33
May 15, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	1,355	34
May 15, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	1,355	0
Apr 23, 2026	SUTTON, JOSEPH W.	Director	Class A Common Stock	Acquisition	10,000	4.74
Apr 23, 2026	SUTTON, JOSEPH W.	Director	Stock Option (right to purchase)	Disposal	10,000	0
Mar 12, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Class A Common Stock	Disposal	306	25.31
Mar 12, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	273	25.31
Mar 12, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Class A Common Stock	Disposal	19	25.31
Mar 10, 2026	BULGARINO, NICOLE E	President - Federal & Utility	Restricted Stock Unit	Acquisition	4,000	0
Mar 10, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Restricted Stock Unit	Disposal	875	0
Mar 10, 2026	BULGARINO, NICOLE E	President - Federal & Utility	Restricted Stock Unit	Disposal	875	0
Mar 10, 2026	SAKELLARIS, GEORGE P	Director, President and CEO, 10% Owner	Stock Option (right to purchase)	Acquisition	100,000	0
Mar 10, 2026	BAKAS, MICHAEL T	President - Renewable Fuels	Restricted Stock Unit	Disposal	875	0
Mar 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	750	0
Mar 10, 2026	BULGARINO, NICOLE E	President - Federal & Utility	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	BAKAS, MICHAEL T	President - Renewable Fuels	Class A Common Stock	Acquisition	875	0
Mar 10, 2026	BAKAS, MICHAEL T	President - Renewable Fuels	Restricted Stock Unit	Acquisition	4,000	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Class A Common Stock	Disposal	50	26.34
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Class A Common Stock	Acquisition	50	0
Mar 10, 2026	BAKAS, MICHAEL T	President - Renewable Fuels	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Restricted Stock Unit	Acquisition	5,000	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Stock Option (right to purchase)	Acquisition	4,000	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	SAKELLARIS, GEORGE P	Director, President and CEO, 10% Owner	Restricted Stock Unit	Disposal	3,750	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Restricted Stock Unit	Acquisition	350	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Restricted Stock Unit	Acquisition	3,500	0
Mar 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	CHRISTAKIS, PETER	President-EastUSA, ProjectRisk	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Restricted Stock Unit	Disposal	750	0
Mar 10, 2026	CHRISTAKIS, PETER	President-EastUSA, ProjectRisk	Restricted Stock Unit	Disposal	750	0
Mar 10, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Restricted Stock Unit	Disposal	50	0
Mar 10, 2026	CHRISTAKIS, PETER	President-EastUSA, ProjectRisk	Restricted Stock Unit	Acquisition	4,000	0
Mar 10, 2026	CHIPLOCK, MARK	EVP, CFO & CAO	Restricted Stock Unit	Acquisition	3,500	0
Mar 10, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Stock Option (right to purchase)	Acquisition	20,000	0
Mar 10, 2026	CHRISTAKIS, PETER	President-EastUSA, ProjectRisk	Class A Common Stock	Acquisition	750	0
Mar 10, 2026	BULGARINO, NICOLE E	President - Federal & Utility	Class A Common Stock	Acquisition	875	0
Mar 10, 2026	SAKELLARIS, GEORGE P	Director, President and CEO, 10% Owner	Class A Common Stock	Acquisition	3,750	0
Mar 10, 2026	MALTEZOS, LOUIS P	President-Central&West USA Can	Class A Common Stock	Acquisition	875	0
Mar 10, 2026	SAKELLARIS, GEORGE P	Director, President and CEO, 10% Owner	Restricted Stock Unit	Acquisition	10,000	0
Mar 8, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Class A Common Stock	Acquisition	50	0
Mar 8, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Restricted Stock Unit	Disposal	50	0
Feb 27, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Class A Common Stock	Acquisition	20,000	4.64
Feb 27, 2026	CORRSIN, DAVID J	Director, EVP and General Counsel	Stock Option (right to purchase)	Disposal	20,000	0
Feb 20, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	15,700	16.33
Feb 20, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	15,700	34.15
Feb 20, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	15,700	0
Feb 19, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	400	0
Feb 19, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	400	16.33
Feb 19, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	400	34
Feb 13, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	245	34.05
Feb 13, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	245	16.33
Feb 13, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	245	0
Feb 12, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	200	34
Feb 12, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	200	16.33
Feb 12, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	200	0
Jan 28, 2026	STAVROPOULOS, NICKOLAS	Director	Stock Option (right to purchase)	Disposal	100	0
Jan 28, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Disposal	100	34
Jan 28, 2026	STAVROPOULOS, NICKOLAS	Director	Class A Common Stock	Acquisition	100	16.33
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	6,599	41.92
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	5,000	12.35
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	5,200	41.57
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	5,000	44.92
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	11,799	0
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to purchase)	Disposal	5,000	0
Oct 13, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	11,799	13.37
Oct 9, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to purchase)	Disposal	5,000	0
Oct 9, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	2,100	13.37
Oct 9, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	5,000	12.35
Oct 9, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	2,100	0
Oct 9, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	7,100	39.97
Oct 8, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	3,800	39.75
Oct 8, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	3,800	13.37
Oct 8, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	3,800	0
Oct 7, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	5,900	0
Oct 7, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	5,900	39.51
Oct 7, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	5,900	13.37
Oct 6, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	5,900	38.92
Oct 6, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	5,900	13.37
Oct 6, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	5,900	0
Oct 1, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Disposal	5,602	37.95
Oct 1, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to puchase)	Disposal	602	0
Oct 1, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Stock Option (right to purchase)	Disposal	5,000	0
Oct 1, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	5,000	12.35
Oct 1, 2025	CHIPLOCK, MARK	EVP, CFO & CAO	Class A Common Stock	Acquisition	602	13.37