<SEC-DOCUMENT>0001753926-21-000265-index.html : 20210719
<SEC-HEADER>0001753926-21-000265.hdr.sgml : 20210719
<ACCEPTANCE-DATETIME>20210719161906
ACCESSION NUMBER:		0001753926-21-000265
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		12
FILED AS OF DATE:		20210719
DATE AS OF CHANGE:		20210719

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:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257300
		FILM NUMBER:		211098107

	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>S-1/A
<SEQUENCE>1
<FILENAME>g082263_s1a.htm
<DESCRIPTION>S-1/A
<TEXT>
Document 1 - file: g082263_s1a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.1
<SEQUENCE>2
<FILENAME>g082263_ex1-1.htm
<DESCRIPTION>EXHIBIT 1.1
<TEXT>
Document 2 - file: g082263_ex1-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.8
<SEQUENCE>3
<FILENAME>g082263_ex4-8.htm
<DESCRIPTION>EXHIBIT 4.8
<TEXT>
Document 3 - file: g082263_ex4-8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>4
<FILENAME>g082263_ex5-1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 4 - file: g082263_ex5-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>5
<FILENAME>g082263_ex23-1.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 5 - file: g082263_ex23-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>img001_v1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: img001_v1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: img001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: img003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>img006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: img006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>img007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: img007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>img008.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: img008.jpg

</DOCUMENT>
</SEC-DOCUMENT>