<SEC-DOCUMENT>0001003297-21-000012-index.html : 20210222
<SEC-HEADER>0001003297-21-000012.hdr.sgml : 20210222
<ACCEPTANCE-DATETIME>20210222085510
ACCESSION NUMBER:		0001003297-21-000012
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20210325
FILED AS OF DATE:		20210222
DATE AS OF CHANGE:		20210222

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MECHANICAL TECHNOLOGY INC
		CENTRAL INDEX KEY:			0000064463
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				141462255
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06890
		FILM NUMBER:		21658392

	BUSINESS ADDRESS:	
		STREET 1:		325 WASHINGTON AVENUE EXTENSION
		CITY:			ALBANY
		STATE:			NY
		ZIP:			12205
		BUSINESS PHONE:		518-218-2500

	MAIL ADDRESS:	
		STREET 1:		325 WASHINGTON AVENUE EXTENSION
		CITY:			ALBANY
		STATE:			NY
		ZIP:			12205
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>mti-def14a.htm
<TEXT>
Document 1 - file: mti-def14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image001.jpg
<TEXT>
Document 2 - file: image001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image002.jpg
<TEXT>
Document 3 - file: image002.jpg

</DOCUMENT>
</SEC-DOCUMENT>