Exhibit
10.6


 


FORM
OF SUBSCRIPTION AGREEMENT FOR PRIVATE UNITS

BY ARCHIMEDES TECH SPAC SPONSORS LLC


 


March
10, 2021


 


Gentlemen:


 


Archimedes
Tech SPAC Partners Co. (“Corporation”), a blank check company formed for the purpose of acquiring one or more businesses
or entities (a “Business Combination”), intends to register its securities under the Securities Act of 1933, as amended
(“Securities Act”), in connection with its initial public offering (“IPO”). The Corporation currently
anticipates selling units (“Unit”) in the IPO, each comprised of one subunit (“Subunit”) and one-quarter of
a warrant (“Warrant”). Each subunit consists of one share of common stock, par value $0.0001 per share of the Corporation
(“Common Stock”) and one-quarter of a Warrant. Each whole Warrant entitles the holder to purchase one share
of Common Stock at a price of $11.50 per share.


 


The
undersigned hereby commits to purchase an aggregate of 330,000 units of the Corporation (“Initial Units”) at $10.00
per Initial Unit for an aggregate purchase price of $3,300,000 (the “Initial Purchase Price”). Additionally, if the
underwriters in the IPO (“Underwriters”) exercise their over-allotment option in full or part, the undersigned further
commits to purchase up to an additional 27,000 Units (“Additional Units” and together with the Initial Units, the
“Private Units”) at $10.00 per Additional Unit, for an aggregate purchase price of up to $270,000 (the “Over-Allotment
Purchase Price” and together with the Initial Purchase Price, the “Purchase Price”). At least 24 hours prior
to the effective date (“Effective Date”) of the Corporation’s registration statement filed in connection with
the IPO (“Registration Statement”), the undersigned will cause the Purchase Price to be delivered to the Trust Fund
by wire transfer. Simultaneously with the consummation of all or any part of the over-allotment option, the undersigned shall
deposit the pro-rata portion of the Over-Allotment Purchase Price, based upon the amount of the over-allotment option that has
been exercised, without interest or deduction, into the Trust Fund. The undersigned agrees that if the size of the IPO is increased
or decreased for any reason, the amount of the undersigned’s investment will be either increased or decreased, as applicable,
so that the undersigned’s percentage of the aggregate investment in Private Units made by the undersigned and other investors
of the Company remains the same. If the size of the offering is increased, the undersigned agrees that it will deliver the purchase
price for such additional Private Units as promptly as is reasonably practicable following the increase if it is on the Effective
Date. If the size of the offering is decreased, the unused portion of the Purchase Price shall be returned to the undersigned.


 


The
consummation of the purchase and issuance of the Initial Units and Additional Units (if any) shall occur simultaneously with the
consummation of the IPO and over-allotment option, respectively. If the Corporation does not complete the IPO within thirty (30)
days from the Effective Date, the Purchase Price (without interest or deduction) will be returned to the undersigned.


 


The
Private Units, Subunits and underlying Warrants (“Private Subunits” and “Private Warrants”, respectively)
will be identical to the units, subunits and warrants to be sold by the Corporation in the IPO, except that:


 


	 	●	the
    undersigned agrees to vote the shares of Common Stock included in the Private Units (“Private Shares”) in favor
    of any proposed Business Combination;



 

	 	●	the
    Private Warrants included in the Private Units and Private Subunits (i) will not be redeemable by the Corporation and (ii)
    may be exercised for cash or on a cashless basis, as described in the Registration Statement, in each case so long as they
    are held by the undersigned or any of its permitted transferees;



 

	 	●	the
    undersigned agrees not to seek conversion, or seek to sell such shares in any tender offer, in connection with any amendment
    to the Corporation’s charter documents or any proposed Business Combination with respect to the Private Shares;



 






     


     


    

 

	 	●	the
    Private Units and underlying securities will not be transferable by the undersigned until the consummation of a Business Combination
    (subject to certain exceptions as described in the Registration Statement and set forth in the warrant agreement governing
    the Private Warrants);



 

	 	●	the
    Private Units, Private Subunits and underlying securities will be subject to customary registration rights, pursuant to a
    registration rights agreement on terms agreed upon by the Corporation and the Underwriters to be filed as an exhibit to the
    Registration Statement;



 

	 	●	the
    undersigned will not participate in any liquidation distribution with respect to the Private Units, Private Subunits or the
    underlying securities (but will participate in liquidation distributions with respect to any units or shares of Common Stock
    purchased by the undersigned in the IPO or in the open market after the IPO) if the Corporation fails to consummate a Business
    Combination; and



 

	 	●	the
    Private Units, Private Subunits and the underlying securities will include any additional terms or restrictions as is customary
    in other similarly structured blank check company offerings or as may be reasonably required by the Underwriters in order
    to consummate the IPO, which terms or restrictions will be described in the Registration Statement.



 

The
undersigned acknowledges and agrees that it will execute agreements in form and substance typical for transactions of this nature
necessary to effectuate the foregoing agreements and obligations prior to the consummation of the IPO as are reasonably acceptable
to the undersigned, including but not limited to (i) an insider letter, (ii) an escrow agreement and (iii) a registration rights
agreement.


 


The
undersigned hereby represents and warrants that, as applicable:


 


	 	(a)	it
    has been advised that the Private Units, Private Subunits and the underlying securities have not been registered under the
    Securities Act;



 

	 	(b)	it
    is acquiring the Private Units and Private Subunits and the underlying securities for its account for investment purposes
    only;



 

	 	(c)	it
    has no present intention of selling or otherwise disposing of the Private Units, Private Subunits or the underlying securities
    in violation of the securities;



 

	 	(d)	it
    is an “accredited investor” as defined by Rule 501 of Regulation D promulgated under the Securities Act of 1933,
    as amended;



 

	 	(e)	it
    has had both the opportunity to ask questions and receive answers from the officers and directors of the Corporation and all
    persons acting on its behalf concerning the terms and conditions of the offer made hereunder;



 

	 	(f)	it
    is familiar with the proposed business, management, financial condition and affairs of the Corporation;



 

	 	(g)	it
    has full power, authority and legal capacity to execute and deliver this letter and any documents contemplated herein or needed
    to consummate the transactions contemplated in this letter; and



 

	 	(h)	this
    letter constitutes a legal, valid and binding obligation, and is enforceable against it.


 






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	Very
    truly yours,	 
	 	 
	ARCHIMEDES
    TECH SPAC SPONSORS LLC	 
	 	 	 
	By:	/s/
    Stephen N. Cannon	 
	 	Name:	Stephen
    N. Cannon	 
	 	Title:	Manager	 


 


 


	Accepted
    and Agreed:	 
	 	 	 
	ARCHIMEDES
    TECH SPAC PARTNERS CO.	 
	 	 	 
	By:	/s/
    Stephen N. Cannon	 
	 	Name:	Stephen
    N. Cannon	 
	 	Title:	Chief
    Executive Officer	 


 






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