Ameresco, Inc. (AMRC) · Insider trading

What Ameresco's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months

$1.91M

4 insiders, 13 trades

Sold, 12 months

$1.46M

6 insiders, 67% under a plan

Net, 12 months

+$453,588

bought less sold

Latest filing

2026-09-17

filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

Bought Sold Largest month: $1.91M

Who traded, two years

Insider	Bought	Sold	Trades	Last trade	Holds after
Sakellaris George PDirector, Chief Executive Officer, 10% owner	$2.46M	–	13	2026-08-28	1,013,597
Chiplock MarkEVP, CFO & CAO	–	$1.85M	12	2026-09-15	2,815
Miller Jennifer LDirector	$41,920	$1.17M	5	2026-08-24	34,546
Cox Brian CDirector	$1.10M	–	2	2026-08-21	44,325
Stavropoulos NickolasDirector	–	$614,367	6	2026-05-15	14,111
Sutton Joseph W.Director	$595,739	–	3	2026-08-24	80,246
Wisneski Francis V JrDirector	$58,392	$483,500	6	2026-05-29	25,232
Patton Charles R.Director	$49,800	–	1	2025-03-05	8,503
Maltezos Louis PCo-President	–	$21,041	2	2026-09-15	33,628
Johnson Claire D'Oyly-HughesDirector	$17,910	–	1	2025-03-04	–
Corrsin David JDirector, EVP and General Counsel	–	$4,250	7	2026-03-12	–

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

Date	Insider	Trade	Shares	Price	Value	Holds after	Filing
2026-09-15	Maltezos Louis PCo-President	Saleplan	592	22.46	$13,296	33,628	Form 4
2026-09-15	Chiplock MarkEVP, CFO & CAO	Saleplan	476	22.46	$10,691	2,815	Form 4
2026-08-28	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	3,000	22.13	$66,390	1,013,597	Form 4
2026-08-27	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	4,000	22.84	$91,360	1,010,597	Form 4
2026-08-26	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	1,000	21.92	$21,920	1,006,597	Form 4
2026-08-25	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	938	21.60	$20,261	1,001,535	Form 4
2026-08-25	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	4,062	22.03	$89,486	1,005,597	Form 4
2026-08-24	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	5,000	20.91	$104,550	1,000,597	Form 4
2026-08-24	Sutton Joseph W.Director	Buy	9,700	20.87	$202,439	80,246	Form 4
2026-08-24	Miller Jennifer LDirector	Buy	2,000	20.96	$41,920	34,546	Form 4
2026-08-21	Cox Brian CDirector	Buy	4,625	21.64	$100,085	44,325	Form 4
2026-08-11	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	1,000	25.90	$25,900	995,597	Form 4
2026-08-10	Cox Brian CDirector	Buy	39,700	25.07	$995,279	39,700	Form 4
2026-08-10	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	1,000	25.27	$25,270	994,597	Form 4
2026-08-07	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Buy	5,000	25.95	$129,750	993,597	Form 4
2026-05-29	Wisneski Francis V JrDirector	Sale	5,000	36.12	$180,600	25,232	Form 4
2026-05-19	Wisneski Francis V JrDirector	Sale	10,000	30.29	$302,900	25,232	Form 4
2026-05-18	Miller Jennifer LDirector	Saleplan	7,642	32.13	$245,537	24,469	Form 4
2026-05-18	Miller Jennifer LDirector	Saleplan	2,358	32.73	$77,177	22,111	Form 4
2026-05-15	Stavropoulos NickolasDirector	Saleplan	1,355	34.00	$46,070	14,111	Form 4
2026-03-12	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	19	25.31	$481	441	Form 4
2026-03-12	Maltezos Louis PPresident-Central&West USA Can	Saleplan	306	25.31	$7,745	32,095	Form 4
2026-03-12	Chiplock MarkEVP, CFO & CAO	Saleplan	273	25.31	$6,910	1,666	Form 4
2026-03-10	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	50	26.34	$1,317	379	Form 4
2026-02-20	Stavropoulos NickolasDirector	Saleplan	15,700	34.15	$536,155	14,111	Form 4
2026-02-19	Stavropoulos NickolasDirector	Saleplan	400	34.00	$13,600	14,111	Form 4
2026-02-13	Stavropoulos NickolasDirector	Saleplan	245	34.05	$8,342	14,111	Form 4
2026-02-12	Stavropoulos NickolasDirector	Saleplan	200	34.00	$6,800	14,111	Form 4
2026-01-28	Stavropoulos NickolasDirector	Saleplan	100	34.00	$3,400	14,111	Form 4
2025-10-13	Chiplock MarkEVP, CFO & CAO	Saleplan	5,200	41.57	$216,164	12,788	Form 4
2025-10-13	Chiplock MarkEVP, CFO & CAO	Saleplan	6,599	41.92	$276,630	6,189	Form 4
2025-10-13	Chiplock MarkEVP, CFO & CAO	Saleplan	5,000	44.92	$224,600	1,189	Form 4
2025-10-09	Chiplock MarkEVP, CFO & CAO	Saleplan	7,100	39.97	$283,787	1,189	Form 4
2025-10-08	Chiplock MarkEVP, CFO & CAO	Saleplan	3,800	39.75	$151,050	1,189	Form 4
2025-10-07	Chiplock MarkEVP, CFO & CAO	Saleplan	5,900	39.51	$233,109	1,189	Form 4
2025-10-06	Chiplock MarkEVP, CFO & CAO	Saleplan	5,900	38.92	$229,628	1,189	Form 4
2025-10-01	Chiplock MarkEVP, CFO & CAO	Saleplan	5,602	37.95	$212,596	1,189	Form 4
2025-09-15	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	19	28.00	$532	379	Form 4
2025-09-15	Chiplock MarkEVP, CFO & CAO	Saleplan	269	28.00	$7,532	1,189	Form 4
2025-09-10	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	19	27.04	$514	348	Form 4

18 more

2025-03-19	Corrsin David JDirector, EVP and General Counsel	Saleplan	64	11.92	$763	471	Form 4
2025-03-19	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	36	11.92	$429	317	Form 4
2025-03-19	Chiplock MarkEVP, CFO & CAO	Saleplan	95	11.92	$1,132	708	Form 4
2025-03-10	Wisneski Francis V JrDirector	Buy	400	10.17	$4,068	20,346	Form 4
2025-03-10	Corrsin David JDirector, EVP and General Counsel	Saleplanindirect	21	10.22	$215	252	Form 4
2025-03-06	Wisneski Francis V JrDirector	Buy	1,908	9.23	$17,611	19,946	Form 4
2025-03-06	Sakellaris George PDirector, President and CEO, 10% owner	Buy	25,000	9.27	$231,750	978,638	Form 4
2025-03-05	Patton Charles R.Director	Buy	5,000	9.96	$49,800	8,503	Form 4
2025-03-05	Wisneski Francis V JrDirector	Buy	300	9.56	$2,868	18,038	Form 4
2025-03-05	Sakellaris George PDirector, President and CEO, 10% owner	Buy	50,000	9.74	$487,000	953,638	Form 4
2025-03-04	Johnson Claire D'Oyly-HughesDirector	Buyindirect	1,800	9.95	$17,910	1,800	Form 4
2025-03-04	Wisneski Francis V JrDirector	Buy	3,500	9.67	$33,845	17,738	Form 4
2025-03-04	Sakellaris George PDirector, President and CEO, 10% owner	Buy	50,000	9.96	$498,000	903,638	Form 4
2025-02-03	Miller Jennifer LDirector	Saleplan	22,060	20.83	$459,510	35,165	Form 4
2025-02-03	Miller Jennifer LDirector	Saleplan	17,940	21.35	$383,019	17,225	Form 4
2024-11-15	Sutton Joseph W.Director	Buy	10,000	26.00	$260,000	35,225	Form 4
2024-11-15	Sutton Joseph W.Director	Buyindirect	5,000	26.66	$133,300	133,355	Form 4
2024-11-13	Sakellaris George PDirector, President and CEO, 10% owner	Buy	25,000	26.54	$663,500	853,638	Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

66 × option exercise

Show them

Date	Insider	What	Shares	Price	Holds after	Filing
2026-09-10	Bulgarino Nicole ECo-President	Option exercise M	+1,875	–	61,171	Form 4
2026-09-10	Christakis PeterChief Operating Officer	Option exercise M	+1,750	–	15,106	Form 4
2026-09-10	Maltezos Louis PCo-President	Option exercise M	+2,125	–	34,220	Form 4
2026-09-10	Sakellaris George PDirector, Chief Executive Officer, 10% owner	Option exercise M	+6,250	–	1,019,847	Form 4
2026-09-10	Chiplock MarkEVP, CFO & CAO	Option exercise M	+1,625	–	3,291	Form 4
2026-06-04	Johnson Claire D'Oyly-HughesDirector	Option exercise M	+10,435	–	20,546	Form 4
2026-06-04	Sutton Joseph W.Director	Option exercise M	+10,435	–	70,546	Form 4
2026-06-04	Miller Jennifer LDirector	Option exercise M	+10,435	–	32,546	Form 4
2026-06-04	Stavropoulos NickolasDirector	Option exercise M	+10,435	–	24,546	Form 4
2026-06-04	Wisneski Francis V JrDirector	Option exercise M	+10,435	–	35,667	Form 4
2026-06-04	Patton Charles R.Director	Option exercise M	+10,435	–	23,824	Form 4
2026-05-29	Wisneski Francis V JrDirector	Option exercise M	+5,000	5.80	30,232	Form 4
2026-05-19	Wisneski Francis V JrDirector	Option exercise M	+10,000	5.80	35,232	Form 4
2026-05-18	Miller Jennifer LDirector	Option exercise M	+10,000	4.74	32,111	Form 4
2026-05-15	Stavropoulos NickolasDirector	Option exercise M	+1,355	16.33	15,466	Form 4
2026-04-23	Sutton Joseph W.Director	Option exercise M	+10,000	4.74	60,111	Form 4
2026-03-10	Christakis PeterPresident-EastUSA, ProjectRisk	Option exercise M	+750	–	13,356	Form 4
2026-03-10	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+50	–	460	Form 4
2026-03-10	Maltezos Louis PPresident-Central&West USA Can	Option exercise M	+875	–	32,401	Form 4
2026-03-10	Bakas Michael TPresident - Renewable Fuels	Option exercise M	+875	–	13,634	Form 4
2026-03-10	Chiplock MarkEVP, CFO & CAO	Option exercise M	+750	–	1,939	Form 4
2026-03-10	Bulgarino Nicole EPresident - Federal & Utility	Option exercise M	+875	–	59,296	Form 4
2026-03-10	Sakellaris George PDirector, President and CEO, 10% owner	Option exercise M	+3,750	–	988,597	Form 4
2026-03-08	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+50	–	429	Form 4
2026-02-27	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+20,000	4.64	20,471	Form 4
2026-02-20	Stavropoulos NickolasDirector	Option exercise M	+15,700	16.33	29,811	Form 4
2026-02-19	Stavropoulos NickolasDirector	Option exercise M	+400	16.33	14,511	Form 4
2026-02-13	Stavropoulos NickolasDirector	Option exercise M	+245	16.33	14,356	Form 4
2026-02-12	Stavropoulos NickolasDirector	Option exercise M	+200	16.33	14,311	Form 4
2026-01-28	Stavropoulos NickolasDirector	Option exercise M	+100	16.33	14,211	Form 4
2025-10-13	Chiplock MarkEVP, CFO & CAO	Option exercise M	+5,000	12.35	6,189	Form 4
2025-10-13	Chiplock MarkEVP, CFO & CAO	Option exercise M	+11,799	13.37	17,988	Form 4
2025-10-09	Chiplock MarkEVP, CFO & CAO	Option exercise M	+2,100	13.37	3,289	Form 4
2025-10-09	Chiplock MarkEVP, CFO & CAO	Option exercise M	+5,000	12.35	8,289	Form 4
2025-10-08	Chiplock MarkEVP, CFO & CAO	Option exercise M	+3,800	13.37	4,989	Form 4
2025-10-07	Chiplock MarkEVP, CFO & CAO	Option exercise M	+5,900	13.37	7,089	Form 4
2025-10-06	Chiplock MarkEVP, CFO & CAO	Option exercise M	+5,900	13.37	7,089	Form 4
2025-10-01	Chiplock MarkEVP, CFO & CAO	Option exercise M	+5,000	12.35	6,189	Form 4
2025-10-01	Chiplock MarkEVP, CFO & CAO	Option exercise M	+602	13.37	6,791	Form 4
2025-09-10	Maltezos Louis PPresident-Central&West USA Can	Option exercise M	+875	–	31,526	Form 4
2025-09-10	Bakas Michael TPresident - Renewable Fuels	Option exercise M	+875	–	12,759	Form 4
2025-09-10	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+50	–	398	Form 4
2025-09-10	Christakis PeterPresident-EastUSA, ProjectRisk	Option exercise M	+750	–	12,606	Form 4
2025-09-10	Bulgarino Nicole EPresident - Federal & Utility	Option exercise M	+875	–	58,421	Form 4
2025-09-10	Chiplock MarkEVP, CFO & CAO	Option exercise M	+750	–	1,458	Form 4
2025-09-10	Sakellaris George PDirector, President and CEO, 10% owner	Option exercise M	+3,750	–	984,847	Form 4
2025-09-08	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+50	–	367	Form 4
2025-06-04	Stavropoulos NickolasDirector	Option exercise M	+4,886	–	14,111	Form 4
2025-06-04	Johnson Claire D'Oyly-HughesDirector	Option exercise M	+4,886	–	10,111	Form 4
2025-06-04	Sutton Joseph W.Director	Option exercise M	+4,886	–	50,111	Form 4
2025-06-04	Wisneski Francis V JrDirector	Option exercise M	+4,886	–	25,232	Form 4
2025-06-04	Miller Jennifer LDirector	Option exercise M	+4,886	–	22,111	Form 4
2025-06-04	Patton Charles R.Director	Option exercise M	+4,886	–	13,389	Form 4
2025-05-06	Sutton Joseph W.Director	Option exercise M	+10,000	7.30	45,225	Form 4
2025-03-17	Christakis PeterPresident-EastUSA, ProjectRisk	Option exercise M	+295	–	11,856	Form 4
2025-03-17	Sakellaris George PDirector, President and CEO, 10% owner	Option exercise M	+2,459	–	981,097	Form 4
2025-03-17	Bulgarino Nicole EPresident - Federal & Utility	Option exercise M	+295	–	57,546	Form 4
2025-03-17	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+183	–	535	Form 4
2025-03-17	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+101	–	353	Form 4
2025-03-17	Chiplock MarkEVP, CFO & CAO	Option exercise M	+276	–	803	Form 4
2025-03-17	Bakas Michael TPresident - Renewable Fuels	Option exercise M	+295	–	11,884	Form 4
2025-03-17	Maltezos Louis PPresident-Central&West USA Can	Option exercise M	+221	–	30,651	Form 4
2025-03-08	Corrsin David JDirector, EVP and General Counsel	Option exercise M	+50	–	273	Form 4
2025-03-05	Bakas Michael TPresident - Renewable Fuels	Option exercise M	+650	4.64	11,589	Form 4
2025-02-27	Bulgarino Nicole EPresident - Federal & Utility	Option exercise M	+25,528	6.53	57,251	Form 4
2025-02-03	Miller Jennifer LDirector	Option exercise M	+40,000	5.85	57,225	Form 4

How to read it

Buy, sale: Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan: A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after: The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value: Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

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