<SEC-DOCUMENT>0001496665-24-000002.txt : 20240212
<SEC-HEADER>0001496665-24-000002.hdr.sgml : 20240212
<ACCEPTANCE-DATETIME>20240212163729
ACCESSION NUMBER:		0001496665-24-000002
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240212
DATE AS OF CHANGE:		20240212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameresco, Inc.
		CENTRAL INDEX KEY:			0001488139
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				043512838
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-85991
		FILM NUMBER:		24620622

	BUSINESS ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
		BUSINESS PHONE:		508-661-2200

	MAIL ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sakellaris George P
		CENTRAL INDEX KEY:			0001496665
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 1:		111 SPEEN STREET
		STREET 2:		SUITE 410
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>sc13gagpsamend121.htm
<DESCRIPTION>SC 13G/A
<TEXT>
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<title>Document</title></head><body><div id="i3c46da4b97e2403086fa7493eef0edf9_1"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="margin-bottom:12pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.711%"><tr><td style="width:1.0%"></td><td style="width:38.324%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:38.326%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">UNITED STATES <br>SECURITIES AND EXCHANGE COMMISSION</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> <br></font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">WASHINGTON, D.C. 20549</font></div><div style="margin-bottom:6pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.711%"><tr><td style="width:1.0%"></td><td style="width:38.324%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:38.326%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">SCHEDULE 13G</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Under the Securities Exchange Act of 1934</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Amendment No. 13)*</font></div><div style="margin-bottom:6pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.711%"><tr><td style="width:1.0%"></td><td style="width:38.324%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:38.326%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:18pt;font-weight:700;line-height:120%">Ameresco, Inc.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:18pt;font-weight:400;line-height:120%"> <br></font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Name of Issuer)</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Class A Common Stock, $.0001 par value per share</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> <br>(Title of Class of Securities)</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">02361E 10 8</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> <br>(CUSIP Number)</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">December 31, 2023</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> <br>(Date of Event Which Requires Filing of this Statement)</font></div><div style="margin-bottom:6pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.711%"><tr><td style="width:1.0%"></td><td style="width:38.324%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:38.326%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="margin-bottom:12pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Check the appropriate box to designate the rule pursuant to which this Schedule is filed&#58;</font></div><div style="margin-bottom:12pt;padding-left:72pt"><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:120%">o</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;Rule 13d-1(b)</font></div><div style="margin-bottom:12pt;padding-left:72pt"><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:120%">o</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;Rule 13d-1(c)</font></div><div style="margin-bottom:12pt;padding-left:72pt"><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#254;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;Rule 13d-1(d)</font></div><div style="margin-bottom:12pt;padding-left:36pt;text-indent:-36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">*&#160;&#160;&#160;&#160;The remainder of this cover page shall be filled out for a reporting person&#8217;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</font></div><div style="margin-bottom:12pt;padding-left:36pt;text-indent:-36pt"><font><br></font></div><div style="margin-bottom:12pt;padding-left:36pt;text-indent:-36pt"><font><br></font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The information required on the remainder of this cover page shall not be deemed to be &#8220;filed&#8221; for the purpose of Section 18 of the Securities Exchange Act of 1934 (the &#8220;Act&#8221;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></div><div style="margin-bottom:7pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.711%"><tr><td style="width:1.0%"></td><td style="width:38.324%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:38.326%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td></tr></table></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><hr style="page-break-after:always"><div style="min-height:72pt;width:100%"><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:91.228%"><tr><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.234%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CUSIP No.   02361E 10 8</font></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13G</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Page 2 of 4 Pages</font></div></td></tr></table></div></div><div style="margin-bottom:12pt"><font><br></font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:4.188%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:13.643%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.508%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:73.261%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">NAMES OF REPORTING PERSONS<br>George P. Sakellaris</font></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*  (see instructions)</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;&#160;(a)  </font><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%">o</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">    (b)  </font><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%">o</font></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">SEC USE ONLY</font></div><div style="margin-bottom:12pt"><font><br></font></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4.</font></td><td colspan="9" style="border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CITIZENSHIP OR PLACE OF ORGANIZATION<br>United States of America</font></td></tr><tr style="height:33pt"><td colspan="6" rowspan="4" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:6pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH</font></div></td><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">5.</font></td><td colspan="3" style="border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">SOLE VOTING POWER <br>13,985,329</font></td></tr><tr style="height:33pt"><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">6.</font></td><td colspan="3" style="border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">SHARED VOTING POWER<br>&#160;6,638,391 <br></font></td></tr><tr style="height:33pt"><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">7.</font></td><td colspan="3" style="border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">SOLE DISPOSITIVE POWER<br>13,985,329</font></td></tr><tr style="height:33pt"><td colspan="3" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">8.</font></td><td colspan="3" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:100%">SHARED DISPOSITIVE POWER<br>&#160;6,638,391 <br></font></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;20,623,720 </font></div><div><font><br></font></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">10.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS   </font><font style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%">o</font></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>39.5%</font></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">12.</font></td><td colspan="9" style="border-bottom:1pt solid #00000a;border-left:1pt solid #00000a;border-right:1pt solid #00000a;border-top:1pt solid #00000a;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">TYPE OF REPORTING PERSON<br>IN</font></td></tr></table></div><div style="margin-bottom:12pt"><font><br></font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><hr style="page-break-after:always"><div style="min-height:72pt;width:100%"><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:91.228%"><tr><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.234%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CUSIP No.   02361E 10 8</font></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13G</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Page 3 of 4 Pages</font></div></td></tr></table></div></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 1(a).&#160;&#160;&#160;&#160;Name of Issuer&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ameresco, Inc.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 1(b).&#160;&#160;&#160;&#160;Address of Issuer&#8217;s Principal Executive Offices&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">111 Speen St., Suite 410 <br>Framingham, MA  01701</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 2(a).&#160;&#160;&#160;&#160;Name of Person Filing&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">George P. Sakellaris</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 2(b).&#160;&#160;&#160;&#160;Address of Principal Business Offices or, if None, Residence&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">c&#47;o Ameresco, Inc. <br>111 Speen St., Suite 410 <br>Framingham, MA  01701 </font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 2(c).&#160;&#160;&#160;&#160;Citizenship&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">United States of America</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 2(d).&#160;&#160;&#160;&#160;Title of Class of Securities&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Class A Common Stock, $.0001 par value per share.  Shares reported include shares of Class A Common stock issuable upon conversion of shares of the Issuer&#8217;s Class B Common Stock, $.0001 par value per share.  Shares of Class B Common Stock are convertible on a one-for-one basis into shares of Class A Common Stock and are entitled to five votes per share.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 2(e).&#160;&#160;&#160;&#160;CUSIP Number&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">02361E 10 8</font></div><div style="margin-bottom:6pt;padding-left:54pt;text-indent:-54pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 3.&#160;&#160;&#160;&#160;If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a&#58;</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 4.&#160;&#160;&#160;&#160;Ownership&#58;</font></div><div style="margin-bottom:6pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.</font></div><div style="margin-bottom:6pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(a)&#160;&#160;&#160;&#160;Amount beneficially owned&#58;&#160;&#160;&#160;&#160;</font><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:15.705%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">20,623,720</font></td></tr></table></div><div style="margin-bottom:6pt;padding-left:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Includes&#58;  (i) 500,000 shares issuable upon exercise of options that are exercisable within 60 days of December 31, 2023&#59; and (ii) 12,661,609 shares issuable upon conversion of shares of Class B Common Stock held directly by the Reporting Person.</font></div><div style="margin-bottom:6pt;padding-left:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Also includes (i) 200,000 shares held by the Reporting Person's spouse, (ii) 1,100,000 shares held by the George P. Sakellaris 2012 Delaware Dynasty Trust (the &#8220;2012 Trust&#8221;) and (iii) 5,338,391 shares issuable upon conversion of shares of Class B Common Stock held by the CGS 2010 Irrevocable Trust (the &#34;2010 Trust&#34; and together with the 2012 Trust, the &#34;Trusts&#34;).  The Reporting Person may be deemed the beneficial holder of the shares held by the Trusts and his spouse and to share voting and dispositive power.  The Reporting Person disclaims beneficial ownership of the shares held by the Trusts and his spouse  and this schedule shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares held by the Trusts or his spouse for purposes of Section 13 or for any other purpose.</font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><hr style="page-break-after:always"><div style="min-height:72pt;width:100%"><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:91.228%"><tr><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.234%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CUSIP No.   02361E 10 8</font></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13G</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Page 4 of 4 Pages</font></div></td></tr></table></div></div><div style="margin-bottom:6pt;padding-left:180pt;text-indent:-144pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(b)&#160;&#160;&#160;&#160;Percent of class&#58;&#160;&#160;&#160;&#160;39.5% (based on 34,234,525 shares of Class A Common Stock outstanding as of November 3, 2023 as reported in the Issuer&#8217;s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023 and calculated in accordance with Rule 13d-3(d)).</font></div><div style="margin-bottom:6pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(c)&#160;&#160;&#160;&#160;Number of shares as to which such person has&#58;</font></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(i)&#160;&#160;&#160;&#160;Sole power to vote or direct the vote&#58;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;13,985,329</font></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(ii)&#160;&#160;&#160;&#160;Shared power to vote or direct the vote&#58;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;  6,638,391</font></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(iii)&#160;&#160;&#160;&#160;Sole power to dispose or to direct the disposition of&#58;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;13,985,329</font></div><div style="margin-bottom:12pt;padding-left:36pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(iv)&#160;&#160;&#160;&#160;Shared power to dispose or to direct the disposition of&#58;&#160;&#160;&#160;&#160;  6,638,391</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 5.&#160;&#160;&#160;&#160;Ownership of Five Percent or Less of a Class.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 6.&#160;&#160;&#160;&#160;Ownership of More than Five Percent on Behalf of Another Person.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt;padding-left:54pt;text-indent:-54pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 7.&#160;&#160;&#160;&#160;Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 8.&#160;&#160;&#160;&#160;Identification and Classification of Members of the Group.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 9.&#160;&#160;&#160;&#160;Notice of Dissolution of Group.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:6pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 10.&#160;&#160;&#160;&#160;Certifications.</font></div><div style="margin-bottom:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Not applicable.</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">* * *</font></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">SIGNATURE</font></div><div style="margin-bottom:12pt;text-indent:36pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</font></div><div style="margin-bottom:12pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:57.211%"><tr><td style="width:1.0%"></td><td style="width:33.633%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:64.167%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">February 12, 2024</font></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Date)</font></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47;s&#47; George P. Sakellaris</font></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Signature)</font></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">George P. Sakellaris</font></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Name and Title)</font></div></td></tr></table></div><div style="margin-bottom:12pt;text-align:center"><font><br></font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
