Ameresco Inc. Insider Trading

AMRC

Cluster buy

4 insiders bought $1.91M of their own stock in 19 days.

Open-market purchases by executives and directors between Aug 10 and Aug 28. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

+454K

8 buys · 13 sales

Under a 10b5-1 plan

67%

of the value sold

Insiders who bought / sold

4 / 6

executives and directors

Last open-market buy

Aug 2026

Aug 28, 2026

Get an email when AMRC's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 15	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan	476	$22.46	11K	14%	Form 4
Sep 15	Louis P Maltezos Co-President	Sold10b5-1 plan	592	$22.46	13K	1.7%	Form 4
Aug 28	George P Sakellaris Chief Executive Officer	Bought	3,000	$22.13	66K	0.1%	Form 4
Aug 26 – 27	George P Sakellaris Chief Executive Officer	Bought 2 parts	5,000	$22.66 average	113K	0.2%	Form 4
Aug 24 – 25	George P Sakellaris Chief Executive Officer	Bought 3 parts	10,000	$21.43 average	214K	0.4%	Form 4
Aug 24	Jennifer L Miller Director	Bought	2,000	$20.96	42K	6.1%	Form 4
Aug 24	Joseph W. Sutton Director	Bought	9,700	$20.87	202K	4.8%	Form 4
Aug 21	Brian C Cox Director	Bought	4,625	$21.64	100K	12%	Form 4
Aug 7 – 11	George P Sakellaris Chief Executive Officer	Bought 3 parts	7,000	$25.85 average	181K	0.3%	Form 4
Aug 10	Brian C Cox Director	Bought	39,700	$25.07	995K	New	Form 4
May 29	Francis V Wisneski Jr Director	SoldNo plan	5,000	$36.12	181K	17%	Form 4
May 19	Francis V Wisneski Jr Director	SoldNo plan	10,000	$30.29	303K	28%	Form 4
May 18	Jennifer L Miller Director	Sold10b5-1 plan 2 parts	10,000	$32.27 average	323K	31%	Form 4
May 15	Nickolas Stavropoulos Director	Sold10b5-1 plan	1,355	$34.00	46K	8.8%	Form 4
Mar 12	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan	273	$25.31	7K	14%	Form 4
Mar 12	Louis P Maltezos President-Central&West USA Can	Sold10b5-1 plan	306	$25.31	8K	0.9%	Form 4
Mar 12	David J Corrsin EVP and General Counsel	Sold10b5-1 plan	19	$25.31	$481	<0.1%	Form 4
Mar 10	David J Corrsin EVP and General Counsel	Sold10b5-1 plan	50	$26.34	1K	0.2%	Form 4
Feb 19 – 20	Nickolas Stavropoulos Director	Sold10b5-1 plan 2 parts	16,100	$34.15 average	550K	53%	Form 4
Feb 12 – 13	Nickolas Stavropoulos Director	Sold10b5-1 plan 2 parts	445	$34.03 average	15K	3.1%	Form 4
Jan 28	Nickolas Stavropoulos Director	Sold10b5-1 plan	100	$34.00	3K	0.7%	Form 4
Oct 9, 2025 – Oct 13, 2025	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan 4 parts	23,899	$41.89 average	$1M	95%	Form 4
Oct 6, 2025 – Oct 8, 2025	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan 3 parts	15,600	$39.35 average	614K	93%	Form 4
Oct 1, 2025	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan	5,602	$37.95	213K	82%	Form 4
Sep 15, 2025	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan	269	$28.00	8K	18%	Form 4
Sep 15, 2025	David J Corrsin EVP and General Counsel	Sold10b5-1 plan	19	$28.00	$532	2.2%	Form 4
Sep 10, 2025	David J Corrsin EVP and General Counsel	Sold10b5-1 plan	19	$27.04	$514	5.2%	Form 4
Mar 19, 2025	Mark Chiplock EVP, CFO & CAO	Sold10b5-1 plan	95	$11.92	1K	12%	Form 4
Mar 19, 2025	David J Corrsin EVP and General Counsel	Sold10b5-1 plan 2 parts	100	$11.92 average	1K	11%	Form 4
Mar 10, 2025	David J Corrsin EVP and General Counsel	Sold10b5-1 plan	21	$10.22	$215	7.7%	Form 4
Mar 10, 2025	Francis V Wisneski Jr Director	Bought	400	$10.17	4K	2.0%	Form 4
Mar 4, 2025 – Mar 6, 2025	George P Sakellaris President and CEO	Bought 3 parts	125,000	$9.73 average	$1.22M	5.8%	Form 4
Mar 4, 2025 – Mar 6, 2025	Francis V Wisneski Jr Director	Bought 3 parts	5,708	$9.52 average	54K	40%	Form 4
Mar 5, 2025	Charles R. Patton Director	Bought	5,000	$9.96	50K	143%	Form 4
Mar 4, 2025	Claire D'Oyly-Hughes Johnson Director	Bought	1,800	$9.95	18K	34%	Form 4
Feb 3, 2025	Jennifer L Miller Director	Sold10b5-1 plan 2 parts	40,000	$21.06 average	843K	70%	Form 4
Nov 15, 2024	Joseph W. Sutton Director	Bought 2 parts	15,000	$26.22 average	393K	9.8%	Form 4
Nov 13, 2024	George P Sakellaris President and CEO	Bought	25,000	$26.54	664K	1.2%	Form 4

Sep 1510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 476 at $22.46
11K
14% of stake
Sep 1510b5-1 plan
Louis P Maltezos
Co-President · sold 592 at $22.46
13K
1.7% of stake
Aug 28
George P Sakellaris
Chief Executive Officer · bought 3,000 at $22.13
66K
0.1% of stake
Aug 26 – 27
George P Sakellaris
Chief Executive Officer · bought 5,000 at avg $22.66
113K
0.2% of stake
Aug 24 – 25
George P Sakellaris
Chief Executive Officer · bought 10,000 at avg $21.43
214K
0.4% of stake
Aug 24
Jennifer L Miller
Director · bought 2,000 at $20.96
42K
6.1% of stake
Aug 24
Joseph W. Sutton
Director · bought 9,700 at $20.87
202K
4.8% of stake
Aug 21
Brian C Cox
Director · bought 4,625 at $21.64
100K
12% of stake
Aug 7 – 11
George P Sakellaris
Chief Executive Officer · bought 7,000 at avg $25.85
181K
0.3% of stake
Aug 10
Brian C Cox
Director · bought 39,700 at $25.07
995K
New position
May 29No plan
Francis V Wisneski Jr
Director · sold 5,000 at $36.12
181K
17% of stake
May 19No plan
Francis V Wisneski Jr
Director · sold 10,000 at $30.29
303K
28% of stake
May 1810b5-1 plan
Jennifer L Miller
Director · sold 10,000 at avg $32.27
323K
31% of stake
May 1510b5-1 plan
Nickolas Stavropoulos
Director · sold 1,355 at $34.00
46K
8.8% of stake
Mar 1210b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 273 at $25.31
7K
14% of stake
Mar 1210b5-1 plan
Louis P Maltezos
President-Central&West USA Can · sold 306 at $25.31
8K
0.9% of stake
Mar 1210b5-1 plan
David J Corrsin
EVP and General Counsel · sold 19 at $25.31
$481
<0.1% of stake
Mar 1010b5-1 plan
David J Corrsin
EVP and General Counsel · sold 50 at $26.34
1K
0.2% of stake
Feb 19 – 2010b5-1 plan
Nickolas Stavropoulos
Director · sold 16,100 at avg $34.15
550K
53% of stake
Feb 12 – 1310b5-1 plan
Nickolas Stavropoulos
Director · sold 445 at avg $34.03
15K
3.1% of stake
Jan 2810b5-1 plan
Nickolas Stavropoulos
Director · sold 100 at $34.00
3K
0.7% of stake
Oct 9, 2025 – Oct 13, 202510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 23,899 at avg $41.89
$1M
95% of stake
Oct 6, 2025 – Oct 8, 202510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 15,600 at avg $39.35
614K
93% of stake
Oct 1, 202510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 5,602 at $37.95
213K
82% of stake
Sep 15, 202510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 269 at $28.00
8K
18% of stake
Sep 15, 202510b5-1 plan
David J Corrsin
EVP and General Counsel · sold 19 at $28.00
$532
2.2% of stake
Sep 10, 202510b5-1 plan
David J Corrsin
EVP and General Counsel · sold 19 at $27.04
$514
5.2% of stake
Mar 19, 202510b5-1 plan
Mark Chiplock
EVP, CFO & CAO · sold 95 at $11.92
1K
12% of stake
Mar 19, 202510b5-1 plan
David J Corrsin
EVP and General Counsel · sold 100 at avg $11.92
1K
11% of stake
Mar 10, 202510b5-1 plan
David J Corrsin
EVP and General Counsel · sold 21 at $10.22
$215
7.7% of stake
Mar 10, 2025
Francis V Wisneski Jr
Director · bought 400 at $10.17
4K
2.0% of stake
Mar 4, 2025 – Mar 6, 2025
George P Sakellaris
President and CEO · bought 125,000 at avg $9.73
$1.22M
5.8% of stake
Mar 4, 2025 – Mar 6, 2025
Francis V Wisneski Jr
Director · bought 5,708 at avg $9.52
54K
40% of stake
Mar 5, 2025
Charles R. Patton
Director · bought 5,000 at $9.96
50K
143% of stake
Mar 4, 2025
Claire D'Oyly-Hughes Johnson
Director · bought 1,800 at $9.95
18K
34% of stake
Feb 3, 202510b5-1 plan
Jennifer L Miller
Director · sold 40,000 at avg $21.06
843K
70% of stake
Nov 15, 2024
Joseph W. Sutton
Director · bought 15,000 at avg $26.22
393K
9.8% of stake
Nov 13, 2024
George P Sakellaris
President and CEO · bought 25,000 at $26.54
664K
1.2% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch AMRC, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

AMRC is in 31 US ETFs. The largest of them, with AMRC's weight in each:

Spot a number that looks wrong? Check it in AMRC's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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