Document:

EX-10.6

 Exhibit 10.6

 
 REGISTRATION RIGHTS AGREEMENT
  

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of the [DAY] day of [MONTH], 2020, by and among GigCapital3, Inc., a
Delaware corporation (the “Company”), and the undersigned parties listed under Holders on the signature page hereto (each such party, and any person or entity who hereafter becomes a party to this Agreement
pursuant to Section 5.2, a “Holder” and collectively, the “Holders”).
  

WHEREAS, on February 6, 2020, the Company and GigAcquisitions3, LLC, a Delaware limited liability company (the “Sponsor”), entered
into a subscription agreement (which was subsequently amended and restated on April 16, 2020) pursuant to which the Company issued and sold 5,735,000 shares (the “Founder Shares”) of its common stock, par value
$0.0001 per share (“Common Stock”) to the Sponsor;
  
 WHEREAS, on [DATE], 2020,
the Company and the Sponsor, and the Company and Nomura Securities International, Inc., Oppenheimer & Co. Inc. and Odeon Capital Group LLC (each such party an “IPO Underwriter” and collectively, the
“IPO Underwriters”) entered into separate unit purchase agreements, pursuant to which the Sponsor and Underwriters agreed to purchase an aggregate of 750,000 units of the Company (or up to 804,000 units of the
Company if the Underwriters’ over-allotment option in connection with the Company’s initial public offering is exercised in full) (the “Private Units”), with each such unit consisting of one share of
Common Stock (all of such shares, collectively, the “Private Shares”) and three-fourths of one warrant, each whole warrant entitling the holder to purchase one share of Common Stock at an exercise price of
$11.50 per share (all of such whole warrants, collectively, “Private Warrants”), in a private placement transaction occurring simultaneously with the closing of the Company’s initial public offering; 

 
 WHEREAS, on [DATE], 2020, the Company issued and sold 5,000 shares (collectively, the “Insider
Shares”) of Common Stock to each of Andrea Betti-Berutto, Peter Wang and Brad Weightman (collectively, the “Insiders”) in consideration for their future services as the Company’s
Hardware Chief Technical Officer, Software Chief Technical Officer, and Vice President and Chief Financial Officer, respectively; and 
  

WHEREAS, the Sponsor, the Insiders, the IPO Underwriters, and the Company desire to set forth certain matters regarding the Registrable Securities (as defined below) owned
by the Holders.
  
 NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and
for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:
  

1. DEFINITIONS. The following capitalized terms used herein have the following meanings:
  

“Adverse Disclosure” means any public disclosure of material non-public information, which disclosure, in the good faith judgment of the Chief
Executive Officer or Chief Financial Officer of the Company, after consultation with counsel to the Company, (i) would be required to be made in any Registration Statement or Prospectus in order for the applicable Registration Statement or
Prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the case of any prospectus and any preliminary prospectus, in the light of the circumstances
under which they were made) not misleading, (ii) would not be required to be made at such time if the Registration Statement were not being filed, and (iii) the Company has a bona fide business purpose for not making such information
public.
  
 
	 
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 “Agreement” means this Agreement, as amended, restated,
supplemented, or otherwise modified from time to time.
  
 “Board” means the
Board of Directors of the Company.
  
 “Business Combination” means the
acquisition of direct or indirect ownership through a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination with one or more businesses or entities, involving the
Company.
  
 “Commission” means the Securities and Exchange Commission, or
any other federal agency then administering the Securities Act or the Exchange Act.
  
 “Common
Stock” has the meaning set forth in the Recitals.
  

“Company” is defined in the preamble to this Agreement.
  

“Demand Registration” has the meaning set forth in Section 2.1.1.
  

“Demanding Holder” has the meaning set forth in Section 2.1.1.
  

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, all as
the same shall be in effect at the time.
  
 “Form S-1” has the meaning set
forth in Section 2.1.1.
  
 “Form S-3” has the meaning set forth in
Section 2.3.
  
 “Founder Shares” has the meaning set forth in the
Recitals.
  
 “Founders” has the meaning set forth in the Recitals.

 
 “Holder Indemnified Party” has the meaning set forth in Section 4.1.

 
 “Indemnified Party” has the meaning set forth in Section 4.3.

 
 “Indemnifying Party” has the meaning set forth in Section 4.3.

 
 “Insider Letters” means those certain letter agreements, each dated [DATE],
2020, in one case by and among the Company and each of the Sponsor and the IPO Underwriters, and in the other case by and among the Company and each of its executive officers and directors.

 
 “Insider Shares” has the meaning set forth in the Recitals.

 
 “Insiders” has the meaning set forth in the Recitals.

 
 “IPO Underwriters” has the meaning set forth in the Recitals.

 
 “Lock-up Period” means (i) with respect to Registrable Securities other than
the Private Units and underlying securities, including the Private Shares, the Private Warrants, and the shares of Common Stock issued or issuable upon the exercise of any Private Warrants, the period ending on the date that is

 
 
	 
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  the earlier of (A) 12 months after the completion of the Company’s initial Business Combination or (B) subsequent
to the Company’s initial Business Combination, (x) the date on which the last sale price of the Common Stock equals or exceeds $12.50 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like)
for any 20 trading days within any 30-trading day period commencing at least 90 days after the Company’s initial Business Combination, or (y) the date on which the Company completes a liquidation, merger, stock exchange or other similar
transaction that results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property; and (ii) with respect to Registrable Securities that are Private Units and
underlying securities, including the Private Shares, the Private Warrants, and the shares of Common Stock issued or issuable upon the exercise of any Private Warrants, the period ending on the 30th day after the completion of the Company’s
initial Business Combination; provided, further, in each case, that, in no case may the Lock-up Period terminate with respect to Registrable Securities held by the Sponsor, the Insiders or the IPO Underwriters prior to the date
which is 180 days from the effective date of the Registration Statement on Form S-1 filed by the Company with the Commission in connection with its initial public offering. 

 
 “Maximum Number of Securities” has the meaning set forth in Section
2.1.4.
  
 “Misstatement” shall mean an untrue statement of a material
fact or an omission to state a material fact required to be stated in a Registration Statement or Prospectus or necessary to make the statements in a Registration Statement or Prospectus in the light of the circumstances under which they were made
not misleading.
  
 “Notices” has the meaning set forth in Section
6.3.
  
 “Permitted Transferees” shall mean a person or entity to whom a
Holder of Registrable Securities is permitted to transfer such Registrable Securities prior to the expiration of the Lock-up Period, pursuant to an Insider Letter and any other applicable agreement between such Holder and the Company, and to any
transferee thereafter.
  
 “Piggyback Registration” has the meaning set
forth in Section 2.2.1.
  
 “Private Shares” has the meaning set
forth in the Recitals.
  
 “Private Units” has the meaning set forth in the
Recitals.
  
  “Private Warrants” has the meaning set forth in the Recitals.

 
 “Prospectus” shall mean the prospectus included in any Registration
Statement, as supplemented by any and all prospectus supplements and as amended by any and all post-effective amendments and including all material incorporated by reference in such prospectus.

 
 “Register,” “Registered” and
“Registration” mean a registration effected by preparing and filing a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and
regulations promulgated thereunder, and such registration statement becoming effective.
  

“Registrable Securities” means (i) all of the Founder Shares, (ii) all of the Insider Shares, (iii) all of the Private Units and underlying
securities, including the Private Shares, the Private Warrants, and the shares of Common Stock issued or issuable upon the exercise of any Private Warrants, and (iv) any equity securities (including the shares of Common Stock issued or issuable upon
the exercise or conversion of 
   
 
	 
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 any such equity security) of the Company issuable upon the conversion of any
working capital loans made to the Company by a Holder. Registrable Securities include any warrants, shares of capital stock or other securities of the Company issued as a dividend or other distribution with respect to or in exchange for or in
replacement of any of the securities described in the foregoing clauses (i) – (iv). As to any particular Registrable Security, such security shall cease to be a Registrable Security when: (a) a Registration Statement with respect to the sale
of such security shall have become effective under the Securities Act and such security shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (b) such security shall have been otherwise
transferred, a new certificate for such security not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of such security shall not require registration under the Securities Act;
(c) such security shall have ceased to be outstanding; or (d) such security is freely saleable under Rule 144 without volume limitations.
  

“Registration Expenses” means the out-of-pocket expenses of a Registration, including, without limitation, the following:

 
 (A) all registration and filing fees (including fees with respect to filings required to be made with the Financial
Industry Regulatory Authority and any securities exchange on which the Common Stock is then listed);
  
 (B) fees and
expenses of compliance with securities or blue sky laws (including reasonable fees and disbursements of counsel for the Underwriters in connection with blue sky qualifications of Registrable Securities);

 
 (C) printing, messenger, telephone and delivery expenses;

 
 (D) reasonable fees and disbursements of counsel for the Company;

 
 (E) reasonable fees and disbursements of all independent registered public accountants of the Company incurred
specifically in connection with such Registration; and
  
 (F) reasonable fees and expenses of one (1) legal
counsel selected by the majority-in-interest of the Demanding Holders initiating a Demand Registration to be registered for offer and sale in the applicable Registration.
  

“Registration Statement” means a registration statement filed by the Company with the Commission in compliance with the Securities Act and the rules
and regulations promulgated thereunder for a public offering and sale of securities (other than a registration statement on Form S-4 or Form S-8, or their successors, or any registration statement covering only securities proposed to be issued in
exchange for securities or assets of another entity).
    
 “Representatives” has the
meaning set forth in Section 2.1.1.
  
 “Requesting Holder” has
the meaning set forth in Section 2.1.1.
  
 “Rule 144” means Rule 144 promulgated
under the Securities Act.
  
 “Securities Act” means the Securities Act of
1933, as amended, and the rules and regulations of the Commission promulgated thereunder, all as the same shall be in effect at the time.
  
	 
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 “Underwriter” means
a securities dealer who purchases any Registrable Securities as principal in an underwritten offering and not as part of such dealer’s market-making activities.
  

“Underwritten Registration” or “Underwritten Offering” means a Registration in which securities of the Company
are sold to an Underwriter in a firm commitment underwriting for distribution to the public.
  

2. REGISTRATION RIGHTS.
  

2.1 Demand Registration.
  
 2.1.1. Request for
Registration. Subject to the provisions of Section 2.1.4 and Section 2.4 hereof, at any time and from time to time on or after the date that the Company consummates a Business Combination, Nomura Securities International, Inc. and
Oppenheimer & Co., acting as representatives of the IPO Underwriters (solely in such representative capacity, the “Representatives”), or the Holders of at least a majority-in-interest of the then-outstanding
number of Registrable Securities (the Representatives or such Holders, the “Demanding Holders”) may make a written demand for Registration under the Securities Act of all or part of their Registrable Securities,
which written demand shall describe the amount and type of securities to be included in such Registration and the intended method(s) of distribution thereof (such written demand, a “Demand Registration”). The
Company shall, within ten (10) days of the Company’s receipt of the Demand Registration, notify, in writing, all other Holders of Registrable Securities of such demand, and each Holder of Registrable Securities who thereafter wishes to include
all or a portion of such Holder’s Registrable Securities in the Demand Registration (each such Holder that includes all or a portion of such Holder’s Registrable Securities in such Registration, a “Requesting
Holder”) shall so notify the Company, in writing, within five (5) days after the receipt by the Holder of the notice from the Company. Upon receipt by the Company of any such written notification from a Requesting Holder, such
Requesting Holder shall be entitled to have its Registrable Securities included in a Registration pursuant to a Demand Registration, and the Company shall effect, as soon thereafter as practicable, but not more than forty-five (45) days immediately
after the Company’s receipt of the Demand Registration, the Registration of all Registrable Securities requested by the Demanding Holders and the Requesting Holders pursuant to such Demand Registration. Under no circumstances shall the Company
be obligated to effect more than an aggregate of two (2) Registrations pursuant to a Demand Registration under this Section 2.1.1 (not counting any Demand Registration initiated solely by the Representatives, which such Demand Registration
shall be limited to one pursuant to Section 3.6 (such Demand Registration); provided, that a Registration shall not be counted for such purposes unless a Form S-1 or any similar long-form registration statement that may be available
at such time (“Form S-1”) has become effective and all of the Registrable Securities requested by the Requesting Holders to be registered on behalf of the Requesting Holders in such Form S-1 Registration have
been sold, in accordance with Section 3.1 of this Agreement.
  
 2.1.2. Effective
Registration. Notwithstanding the provisions of Section 2.1.1 above or any other part of this Agreement, a Registration pursuant to a Demand Registration will not count as a Registration unless and until (i) a Form S-1 filed with the
Commission in connection with the Registration has been declared effective by the Commission, and (ii) the Company has complied with all of its obligations under this Agreement with respect thereto; provided, that if, after such
Registration Statement has been declared effective, the offering of Registrable Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other governmental agency or court, the
Registration Statement with respect to such Demand Registration will be deemed not to have been declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii) a majority-in-interest of
the Demanding Holders 
  
 
	 
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 initiating such Demand Registration thereafter affirmatively elect to continue with such Registration and accordingly notify
the Company in writing of such election, which notice shall be received by the Company not later than five (5) days after the removal of any such stop order or injunction; provided, further, that the Company shall not be obligated
to file a second Registration Statement until a Registration Statement that has been previously filed pursuant to a Demand Registration becomes effective or is terminated.
  

2.1.3. Underwritten Offering. Subject to the provisions of Section 2.1.4 and Section 2.4 hereof, if a majority-in-interest of the Demanding Holders so advise
the Company as part of their Demand Registration that the offering of Registrable Securities pursuant thereto shall be in the form of an Underwritten Offering, then the right of such Demanding Holder or Requesting Holder (if any) to include its
Registrable Securities in such Registration shall be conditioned upon such Holder’s participation in such Underwritten Offering and the inclusion of such Holder’s Registrable Securities in such Underwritten Offering to the extent
provided herein. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this Section 2.1.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for
such Underwritten Offering by a majority-in-interest of the Demanding Holders initiating the Demand Registration.
  

2.1.4. Reduction of Underwritten Offering. If the managing Underwriter(s) for a Demand Registration that is to be an Underwritten Offering, in good faith, advises the
Company, the Demanding Holders and the Requesting Holders in writing that the dollar amount or number of Registrable Securities which the Demanding Holders and Requesting Holders desire to sell, taken together with all other shares of Common Stock
or other equity securities which the Company desires to sell and the shares of Common Stock, if any, as to which a Registration has been requested pursuant to separate written contractual piggy-back registration rights held by other stockholders of
the Company who desire to sell, exceeds the maximum dollar amount or maximum number of equity securities that can be sold in such Underwritten Offering without adversely affecting the proposed offering price, the timing, the distribution method, or
the probability of success of such Underwritten Offering (such maximum dollar amount or maximum number of securities, as applicable, the “Maximum Number of Securities”), then the Company shall include in such
Underwritten Offering, as follows: (i) first, the Registrable Securities of the Demanding Holders and the Requesting Holders (if any) (pro rata based on the respective number of Registrable Securities that each Demanding Holder and
Requesting Holder (if any) has requested be included in such Underwritten Registration and the aggregate number of Registrable Securities that the Demanding Holders and Requesting Holders have requested be included in such Underwritten Registration
(such proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Securities; (ii) second, to the extent that the Maximum Number of Securities has not been
reached under the foregoing clause (i), the Registrable Securities of Holders (Pro Rata, based on the respective number of Registrable Securities that each Holder has so requested exercising their rights to register their Registrable Securities
pursuant to Section 2.2.1 hereof, without exceeding the Maximum Number of Securities; (iii) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (i) and (ii), the
Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; and (iv) fourth, to the extent that the Maximum Number of Securities has not been reached under the
foregoing clauses (i), (ii) and (iii), the Common Stock or other equity securities of other persons or entities that the Company is obligated to register in a Registration pursuant to separate written contractual arrangements with such persons
and that can be sold without exceeding the Maximum Number of Securities.
  
 2.1.5. Withdrawal. The
Representatives or a majority-in-interest of the Demanding Holders initiating a Demand Registration pursuant to a Registration under Section 2.1.1, as the case may be, shall have the right to withdraw from a Registration pursuant to
such Demand Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter(s), if any, of their intention to
  
	 
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 withdraw from such Registration prior to the effectiveness of the Registration Statement filed with the Commission with
respect to the Registration of their Registrable Securities pursuant to such Demand Registration. Notwithstanding anything to the contrary in this Agreement, if with respect to a Demand Registration, the Representatives or a majority-in-interest of
the Demanding Holdings, in each case, initiating a Demand Registration, so withdraw from a Registration pursuant to such Demand Registration, such Registration shall not count as a Demand Registration provided for in Section 2.1.1 and the
Company shall be responsible for the Registration Expenses incurred in connection with a Registration pursuant to a Demand Registration prior to its withdrawal under this Section 2.1.5; provided that if the Company pays such expenses
related to a Demand Registration initiated by the Representatives, such registration shall count as a Demand Registration for purposes of Section 3.6.
  

2.2 Piggy-Back Registration.
  

2.2.1. Piggy-Back Rights. If at any time on or after the date the Company consummates a Business Combination the Company proposes to file a Registration Statement under the
Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into, equity securities, by the Company for its own account or for stockholders of the Company for
their account (or by the Company and by stockholders of the Company including, without limitation, pursuant to Section 2.1), other than a Registration Statement (i) filed in connection with any employee stock option or other benefit plan,
(ii) for an exchange offer or offering of securities solely to the Company’s existing stockholders, (iii) for an offering of debt that is convertible into equity securities of the Company, or (iv) for a dividend reinvestment plan, then the
Company shall (x) give written notice of such proposed filing to the holders of Registrable Securities as soon as practicable but in no event less than ten (10) days before the anticipated filing date, which notice shall describe the amount and type
of securities to be included in such offering, the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, of the offering, and (y) offer to the holders of Registrable Securities in such notice
the opportunity to register the sale of such number of shares of Registrable Securities as such holders may request in writing within five (5) days following receipt of such notice (a “Piggyback Registration”).
The Company shall, in good faith, cause such Registrable Securities to be included in such Registration and shall use its best efforts to cause the managing Underwriter(s) of a proposed Underwritten Offering to permit the Registrable Securities
requested to be included in such Registration on the same terms and conditions as any similar securities of the Company and to permit the sale or other disposition of such Registrable Securities in accordance with the intended method(s) of
distribution thereof. All holders of Registrable Securities proposing to distribute their securities through a Piggy-Back Registration that involves an Underwriter(s) shall enter into an underwriting agreement in customary form with the
Underwriter(s) selected for such Piggyback Registration.
  
 2.2.2. Reduction of Piggyback
Registration. If the managing Underwriter(s) for a Piggyback Registration that is to be an Underwritten Offering, in good faith, advises the Company and the Holders of Registrable Securities participating in the Piggyback Registration in writing
that the dollar amount or number of securities which the Company desires to sell, taken together with (i) the Common Stock or other equity securities, if any, as to which Registration has been demanded pursuant to separate written contractual
arrangements with persons or entities other than the Holders of Registrable Securities hereunder, (ii) the Registrable Securities as to which Registration has been requested under this Section 2.2, and (iii) the Common Stock or other equity
securities, if any, as to which Registration has been requested pursuant to separate written contractual piggyback registration rights of other stockholders of the Company, exceeds the Maximum Number of Securities, then:

 
 a) If the Registration is undertaken for the Company’s account, the Company shall include in any such Registration (A) first, the
Common Stock or other equity securities that the 
  
 
	 
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 Company desires to sell, which can be sold without exceeding
the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights to register their Registrable
Securities pursuant to Section 2.2.1 hereof, Pro Rata, which can be sold without exceeding the Maximum Number of Securities; and (C) third, to the extent that the Maximum Number of Securities has not been reached under the
foregoing clauses (A) and (B), the Common Stock, if any, as to which Registration has been requested pursuant to written contractual piggyback registration rights of other stockholders of the Company, which can be sold without exceeding the
Maximum Number of Securities; and
  
 b) If the Registration is pursuant to a request by persons or entities other than the Holders of
Registrable Securities, then the Company shall include in any such Registration (A) first, the Common Stock or other equity securities, if any, of such requesting persons or entities, other than the Holders of Registrable Securities, which can
be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights to
register their Registrable Securities pursuant to Section 2.2.1, Pro Rata based on the number of Registrable Securities that each Holder has requested be included in such Underwritten Registration and the aggregate number of
Registrable Securities that the Holders have requested to be included in such Underwritten Registration, which can be sold without exceeding the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities has
not been reached under the foregoing clauses (A) and (B), the Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth, to the extent
that the Maximum Number of Securities has not been reached under the foregoing clauses (A), (B) and (C), the Common Stock or other equity securities for the account of other persons or entities that the Company is obligated to register pursuant
to separate written contractual arrangements with such persons or entities, which can be sold without exceeding the Maximum Number of Securities.
  

2.2.3. Piggyback Registration Withdrawal. Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback Registration for any or no reason whatsoever
upon written notification to the Company and the Underwriter(s) of his, her or its intention to withdraw from such Piggyback Registration prior to the effectiveness of the Registration Statement filed with the Commission with respect to such
Piggyback Registration. The Company (whether on its own good faith determination or as the result of a request for withdrawal by persons pursuant to separate written contractual obligations) may withdraw a Registration Statement filed with the
Commission in connection with a Piggyback Registration at any time prior to the effectiveness of such Registration Statement. Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses
incurred in connection with the Piggyback Registration prior to its withdrawal under this Section 2.2.3.
  

2.2.4. Unlimited Piggyback Registration Rights. For purposes of clarity, any Registration effected pursuant to Section 2.2 hereof shall not be counted as a
Registration pursuant to a Demand Registration effected under Section 2.1 hereof. 
  

2.3 Registrations on Form S-3. The Holders of Registrable Securities may at any time, and from time to time, request in writing that the Company, pursuant to Rule 415 under
the Securities Act (or any successor rule promulgated thereafter by the Commission), register the resale of any or all of their 
  
	 
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 Registrable Securities on Form S-3 or any similar short-form registration statement that may be available at such time
(“Form S-3”); provided, that the Company shall not be obligated to effect such request through an Underwritten Offering. Within five (5) days of the Company’s receipt of a written
request from a Holder or Holders of Registrable Securities for a Registration on Form S-3, the Company shall promptly give written notice of the proposed Registration on Form S-3 to all other Holders of Registrable Securities, and each Holder of
Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in such Registration on Form S-3 shall so notify the Company, in writing, within ten (10) days after the receipt by the
Holder of the notice from the Company. As soon as practicable thereafter, but not more than twelve (12) days after the Company’s initial receipt of such written request for a Registration on Form S-3, the Company shall register all or
such portion of such Holder’s Registrable Securities as are specified in such written request, together with all or such portion of Registrable Securities of any other Holder or Holders joining in such request as are specified in the written
notification given by such Holder or Holders; provided, that the Company shall not be obligated to effect any such Registration pursuant to Section 2.3 hereof if (i) a Form S-3 is not available for such offering;
or (ii) the Holders of Registrable Securities, together with the Holders of any other equity securities of the Company entitled to inclusion in such Registration, propose to sell the Registrable Securities and such other equity securities (if
any) at any aggregate price to the public of less than $5,000,000. Registrations effected pursuant to this Section 2.3 shall not be counted as Demand Registrations effected pursuant to Section 2.1; provided such registration
shall count for purposes of Section 3.5 if initiated by the Representatives.
  
 2.4 Restrictions
on Registration Rights. If (A) during the period starting with the date sixty (60) days prior to the Company’s good faith estimate of the date of the filing of, and ending on a date one hundred and twenty (120) days
after the effective date of, a Company initiated Registration and provided that the Company has delivered written notice to the Holders prior to receipt of a Demand Registration pursuant to Section 2.1.1 and it continues to actively
employ, in good faith, all reasonable efforts to cause the applicable Registration Statement to become effective; (B) the Holders have requested an Underwritten Registration and the Company and the Holders are unable to obtain the commitment of
underwriters to firmly underwrite the offer; or (C) in the good faith judgment of the Board such Registration would be seriously detrimental to the Company and the Board concludes as a result that it is essential to defer the filing of such
Registration Statement at such time, then in each case the Company shall furnish to such Holders a certificate signed by the Chairman of the Board stating that in the good faith judgment of the Board it would be seriously detrimental to the Company
for such Registration Statement to be filed in the near future and that it is therefore essential to defer the filing of such Registration Statement. In such event, the Company shall have the right to defer such filing for a period of not more than
thirty (30) days; provided, that the Company may not defer its obligation in this manner more than once in any 12-month period.
  

3. REGISTRATION PROCEDURES.
  

3.1 Filings; Information. Whenever the Company is required to effect the registration of any Registrable Securities pursuant to Section 2, the Company shall use its
best efforts to effect the Registration to permit the sale of such Registrable Securities in accordance with the intended plan of distribution thereof as expeditiously as practicable, and in connection with any such request:

 
 3.1.1 prepare and file with the Commission as soon as practicable a Registration Statement with respect to such
Registrable Securities and use its reasonable best efforts to cause such Registration Statement to become effective and remain effective until all Registrable Securities covered by such Registration Statement have been sold;

 
	 
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 3.1.2 prepare and file with the Commission such amendments and post-effective amendments to the
Registration Statement, and such supplements to the Prospectus, as may be requested by the Holders or any Underwriter of Registrable Securities or as may be required by the rules, regulations or instructions applicable to the registration form used
by the Company or by the Securities Act or rules and regulations thereunder to keep the Registration Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance with the intended plan of
distribution set forth in such Registration Statement or supplement to the Prospectus;
  
 3.1.3 prior to filing a
Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriters, if any, and the Holders of Registrable Securities included in such Registration, and such Holders’ legal counsel, copies
of such Registration Statement as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto and documents incorporated by reference therein), the Prospectus included in such
Registration Statement (including each preliminary Prospectus), and such other documents as the Underwriters and the Holders of Registrable Securities included in such Registration or the legal counsel for any such Holders may request in order to
facilitate the disposition of the Registrable Securities owned by such Holders;
  
 3.1.4 prior to any public
offering of Registrable Securities, use its best efforts to (i) register or qualify the Registrable Securities covered by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States
as the Holders of Registrable Securities included in such Registration Statement (in light of their intended plan of distribution) may request, and (ii) take such action necessary to cause such Registrable Securities covered by the Registration
Statement to be registered with or approved by such other governmental authorities as may be necessary by virtue of the business and operations of the Company and do any and all other acts and things that may be necessary or advisable to enable the
Holders of Registrable Securities included in such Registration Statement to consummate the disposition of such Registrable Securities in such jurisdictions; provided, that the Company shall not be required to qualify generally to
do business in any jurisdiction where it would not otherwise be required to qualify or take any action to which it would be subject to general service of process or taxation in any such jurisdiction where it is not then otherwise so subject;

 
 3.1.5 cause all such Registrable Securities to be listed on each securities exchange or automated quotation system
on which similar securities issued by the Company are then listed;
  
 3.1.6 provide a transfer agent or warrant
agent, as applicable, and registrar for all such Registrable Securities no later than the effective date of such Registration Statement;
  

3.1.7 advise each seller of such Registrable Securities, promptly after it shall receive notice or obtain knowledge thereof, of the issuance of any stop order by the Commission suspending
the effectiveness of such Registration Statement or the initiation or threatening of any proceeding for such purpose and promptly use its reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop
order should be issued;
  
 3.1.8 at least five (5) days prior to the filing of any Registration Statement or
Prospectus or any amendment or supplement to such Registration Statement or Prospectus or any document that is to be incorporated by reference into such Registration Statement or Prospectus, furnish a copy thereof to each seller of such Registrable
Securities or its counsel;
  
 3.1.9 notify the Holders at any time when a Prospectus relating to such Registration
Statement is required to be delivered under the Securities Act, of the happening of any event as a result of 
 
	 
	10
	  

	 

 
 which the Prospectus included in such Registration Statement, as then in effect, includes a Misstatement, and then to correct
such Misstatement as set forth in Section 3.4 hereof;
  
   3.1.10 permit a representative of the Holders (such
representative to be selected by a majority of the participating Holders), the Underwriters, if any, and any attorney or accountant retained by such Holders or Underwriter to participate, at each such person’s own expense, in the preparation
of the Registration Statement, and cause the Company’s officers, directors and employees to supply all information reasonably requested by any such representative, Underwriter, attorney or accountant in connection with the
Registration; provided, that such representatives or Underwriters enter into a confidentiality agreement, in form and substance reasonably satisfactory to the Company, prior to the release or disclosure of any such information;

 
 3.1.11 obtain a “comfort” letter from the Company’s independent registered public accountants in
the event of an Underwritten Registration, in customary form and covering such matters of the type customarily covered by “comfort” letters as the managing Underwriter may reasonably request, and may be found reasonably satisfactory to a
majority-in-interest of the participating Holders;
  
 3.1.12 on the date the Registrable Securities are delivered
for sale pursuant to such Registration, obtain an opinion, dated such date, of counsel representing the Company for the purposes of such Registration, addressed to the Holders, the placement agent or sales agent, if any, and the Underwriters, if
any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as the Holders, placement agent, sales agent, or Underwriter may reasonably request and as are customarily included in such opinions
and negative assurance letters, and may be found reasonably satisfactory to a majority in interest of the participating Holders;
  

3.1.13 in the event of any Underwritten Offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing Underwriters of
such offering;
  
 3.1.14 make available to its security holders, as soon as reasonably practicable, an earnings
statement covering the period of at least twelve (12) months beginning with the first day of the Company’s first full calendar quarter after the effective date of the Registration Statement which satisfies the provisions of
Section 11(a) of the Securities Act and Rule 158 thereunder (or any successor rule promulgated thereafter by the Commission);
  

3.1.15 if the Registration involves the Registration of Registrable Securities involving gross proceeds in excess of $25,000,000, use its reasonable efforts to make available senior
executives of the Company to participate in customary “road show” presentations that may be reasonably requested by the Underwriter in any Underwritten Offering; and

 
 3.1.16 otherwise, in good faith, cooperate reasonably with, and take such customary actions as may reasonably be
requested by the Holders, in connection with such Registration.
  
 3.2 Registration Expenses. The
Registration Expenses of all Registrations shall be borne by the Company. It is acknowledged by the Holders that the Holders shall bear all incremental selling expenses relating to the sale of Registrable Securities, such as Underwriters’
commissions and discounts, brokerage fees, Underwriter marketing costs and, other than as set forth in the definition of “Registration Expenses”, all reasonable fees and expenses of any legal counsel representing the Holders.

 
 3.3 Requirements for Participation in Underwritten Offerings. No person may participate in any
Underwritten Offering for equity securities of the Company pursuant to a Registration initiated by the   
 
	 
	11
	  

	 

 Company hereunder unless such person (i) agrees to sell such person’s securities on the basis provided in any
underwriting arrangements approved by the Company, and (ii) completes and executes all customary questionnaires, powers of attorney, indemnities, lock-up agreements, underwriting agreements and other customary documents as may be reasonably
required under the terms of such underwriting arrangements.
  
 3.4 Suspension of Sales; Adverse
Disclosure. Upon receipt of written notice from the Company that a Registration Statement or Prospectus contains a Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until it has received copies
of a supplemented or amended Prospectus correcting the Misstatement (it being understood that the Company hereby covenants to prepare and file such supplemented or amended Prospectus as soon as practicable after the time of such notice), or until it
is advised in writing by the Company that the use of the Prospectus may be resumed. If the filing, initial effectiveness or continued use of a Registration Statement in respect of any Registration at any time would require the Company to make an
Adverse Disclosure or would require the inclusion in such Registration Statement of financial statements that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written notice of such
action to the Holders, delay the filing or initial effectiveness of, or suspend use of, such Registration Statement for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be
necessary for such purpose. In the event the Company exercises its rights under the preceding sentence, the Holders agree to suspend, immediately upon their receipt of the notice referred to above, their use of the Prospectus relating to any
Registration in connection with any sale or offer to sell Registrable Securities. The Company shall immediately notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.4, and upon the
expiration of such period the Holders shall be entitled to resume the use of any such Prospectus in connection with any sale or offer to sell Registrable Securities.
  

3.5 Reporting Obligations. As long as any Holder shall own Registrable Securities, the Company, at all times while it shall be reporting under the Exchange Act, covenants to
file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to Sections 13(a) or 15(d) of the Exchange Act and to promptly furnish
the Holders with true and complete copies of all such filings. The Company further covenants that it shall take such further action as any Holder may reasonably request, all to the extent required from time to time to enable such Holder to sell
Registrable Securities held by such Holder without registration under the Securities Act within the limitation of the exemptions provided by Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the
Commission), including providing any legal opinions. Upon the request of any Holder, the Company shall deliver to such Holder a written certification of a duly authorized officer as to whether it has complied with such requirements.

 
 3.6 Limitations on Registration Rights. Notwithstanding anything herein to the contrary, (i) none of
the IPO Underwriters may exercise its rights under Sections 2.1 and 2.2 hereunder after five (5) and seven (7) years, respectively, after the effective date of the registration statement relating to the Company’s initial public
offering and (ii) the Representatives may not exercise their rights under Section 2.1 more than once. 
  

4. INDEMNIFICATION AND CONTRIBUTION.
  

4.1 Indemnification by the Company. The Company agrees to indemnify, to the extent permitted by law, and hold harmless each Holder of Registrable Securities, its officers and directors, and each
person who controls such Holder (within the meaning of the Securities Act), from and against any expenses, losses, judgments, claims, damages or liabilities (including reasonable attorney’s fees), whether joint or several, arising out of or
based upon any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus, or any amendment or supplement to
 
	 
	12
	  

	 

 any of them, or any omission or alleged omission of a material fact required to be stated therein or necessary to make the
statements therein not misleading, except insofar as the same is contained in any information furnished in writing to the Company by the Holder expressly for use therein. The Company also shall indemnify any Underwriter of the Registrable
Securities, their officers and directors, and each person who controls such Underwriter (within the meaning of the Securities Act) on substantially the same basis as that of the indemnification provided above in this Section 4.1.

 
 4.2 Indemnification by Holders of Registrable Securities. In connection with any Registration Statement in
which a Holder of Registrable Securities is participating, such Holder shall furnish to the Company in writing such information and affidavits as the Company reasonably requests for use in connection with any such Registration Statement or
Prospectus and, to the extent permitted by law, shall indemnify the Company, its directors and officers and agents and each person who controls the Company (within the meaning of the Securities Act) against any losses, claims, damages, liabilities
and expenses (including without limitation reasonable attorneys’ fees) resulting from any untrue statement of material fact contained in the Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement
thereto or any omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, but only to the extent that such untrue statement or omission is contained in any information or affidavit so
furnished in writing by such Holder expressly for use therein; provided, that the obligation to indemnify shall be several, not joint and several, among such Holders of Registrable Securities, and the liability of each such Holder of
Registrable Securities shall be in proportion to and limited to the net proceeds received by such Holder from the sale of Registrable Securities pursuant to such Registration Statement. Each Holder shall indemnify any Underwriter of Registrable
Securities sold by such Holder, their officers, directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided in the foregoing with respect to indemnification of the Company.

 
 4.3 Conduct of Indemnification Proceedings. Any person entitled to indemnification herein shall
(i) give prompt written notice to the indemnifying party of any claim with respect to which it seeks indemnification (provided that the failure to give prompt notice shall not impair any person’s right to indemnification hereunder to the
extent such failure has not materially prejudiced the indemnifying party), and (ii) unless in such indemnified party’s reasonable judgment a conflict of interest between such indemnified and indemnifying parties may exist with respect to
such claim, permit such indemnifying party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party. If such defense is assumed, the indemnifying party shall not be subject to any liability for any settlement
made by the indemnified party without its consent. An indemnifying party who is not entitled to, or elects not to, assume the defense of a claim shall not be obligated to pay the fees and expenses of more than one counsel for all parties indemnified
by such indemnifying party with respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of interest may exist between such indemnified party and any other of such indemnified parties with respect to such claim.
No indemnifying party shall, without the consent of the indemnified party, consent to the entry of any judgment or enter into any settlement which cannot be settled in all respects by the payment of money (and such money is so paid by the
indemnifying party pursuant to the terms of such settlement) or which settlement does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect to such
claim or litigation.
  
 4.4 Contribution. If the indemnification provided under Section
4.1 hereof from the indemnifying party is unavailable or insufficient to hold harmless an indemnified party in respect of any losses, claims, damages, liabilities and expenses referred to herein, then the indemnifying party, in lieu of
indemnifying the indemnified party, shall contribute to the amount paid or payable by the indemnified party as a result of such losses, claims, damages, liabilities and expenses in such proportion as is appropriate to reflect the relative fault of
the indemnifying party and the indemnified party, as well as any other relevant equitable 
  
	 
	13
	  

	 

 
 considerations. The relative fault of the indemnifying party and indemnified party shall be determined by reference to, among
other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, was made by, or relates to information supplied by, such indemnifying party
or indemnified party, and the indemnifying party’s and indemnified party’s relative intent, knowledge, access to information and opportunity to correct or prevent such action; provided, that the liability of any Holder
under this Section 4.4 shall be limited to the amount of the net proceeds received by such Holder in such offering giving rise to such liability. The amount paid or payable by a party as a result of the losses or other liabilities
referred to above shall be deemed to include, subject to the limitations set forth in Sections 4.1-4.3 above, any legal or other fees, charges or expenses reasonably incurred by such party in connection with any investigation or
proceeding. The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 4.4 were determined by pro rata allocation or by any other method of allocation, which does not take account of the
equitable considerations referred to in this Section 4.4. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution pursuant to
this Section 4.4 from any person who was not guilty of such fraudulent misrepresentation.
  
 4.4
Survival. The indemnification provided for under this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of the indemnified party or any officer, director or controlling person of such
indemnified party and shall survive the transfer of securities. The Company and each Holder of Registrable Securities participating in an offering also agrees to make such provisions as are reasonably requested by any indemnified party for
contribution to such party in the event the Company’s or such Holder’s indemnification is unavailable for any reason. 
  

5. INTENTIONALLY OMITTED.
  

6. MISCELLANEOUS.
  

6.1 Assignment; No Third Party Beneficiaries. 
  

6.1.1 This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in part.

 
 6.1.2 Prior to the expiration of the Lock-up Period, no Holder may assign or delegate such Holder’s rights,
duties or obligations under this Agreement, in whole or in part, except in connection with a transfer of Registrable Securities by such Holder to a Permitted Transferee, but only if such Permitted Transferee agrees to become bound by the transfer
restrictions set forth in this Agreement, the Insider Letters and other applicable letter agreements.
  
 6.1.3
This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and its successors and the permitted assigns of the Holders, which shall include Permitted Transferees.

 
 6.1.4 This Agreement shall not confer any rights or benefits on any persons that are not parties hereto, other than
as expressly set forth in this Agreement.
  
 6.1.5 No assignment by any party hereto of such party’s rights,
duties and obligations hereunder shall be binding upon or obligate the Company unless and until the Company shall have received (i) written notice of such assignment, and (ii) the written agreement of the assignee, in a form reasonably
satisfactory to the Company, to be bound by the terms and provisions of this Agreement (which may be accomplished by an addendum or certificate of joinder to this Agreement). 
  
	 
	14
	  

	 

 
 6.1.6 Any transfer or assignment made other than as provided in this Section 6.1 shall
be null and void.
  
 6.2 Notices. All notices, demands, requests, consents, approvals or other
communications (collectively, “Notices”) required or permitted to be given hereunder or which are given with respect to this Agreement shall be in writing and shall be personally served, delivered by reputable
air courier service with charges prepaid, or transmitted by hand delivery, telegram, telex or facsimile, addressed as set forth below, or to such other address as such party shall have specified most recently by written notice. Notice shall be
deemed given on the date of service or transmission if personally served or transmitted by telegram, telex or facsimile; provided, that if such service or transmission is not on a business day or is after normal business hours, then such notice
shall be deemed given on the next business day. Notice otherwise sent as provided herein shall be deemed given on the next business day following timely delivery of such notice to a reputable air courier service with an order for next-day
delivery.
  
 To the Company:
  

GigCapital3, Inc.
 1731 Embarcadero Rd., Suite 200 
 Palo Alto, CA
94303
 Attn: Dr. Avi S. Katz
  
 With a copy
to:
  
 Crowell & Moring LLP
 3 Embarcadero Center, 26th Floor
San Francisco, CA 94111 
 Attn: Jeffrey C. Selman, Esq.
  

And to Holder, to the address set forth below such Holder’s name on Exhibit A hereto.
  

6.4 Severability. This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or
enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as
similar in terms to such invalid or unenforceable provision as may be possible that is valid and enforceable.
  

6.5 Counterparts; Electronic Signatures. This Agreement may be executed in counterparts, each of which when so executed shall be deemed to be an original and all of which when
taken together shall constitute one and the same instrument.  The words “execution,” signed,” “signature,” and words of like import in this Agreement or in any other certificate, agreement or document related to
this Agreement shall include images of manually executed signatures transmitted by facsimile or other electronic format (including, without limitation, “pdf”, “tif” or “jpg”) and other electronic signatures
(including, without limitation, DocuSign and AdobeSign).  The use of electronic signatures and electronic records (including, without limitation, any contract or other record created, generated, sent, communicated, received, or stored by
electronic means) shall be of the same legal effect, validity and enforceability as a manually executed signature or use of a paper-based record-keeping system to the fullest extent permitted by applicable law, including the Federal Electronic
Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act or the Uniform
Commercial Code.
  
 6.6 Entire Agreement. This Agreement (including all agreements entered into
pursuant hereto and all certificates and instruments delivered pursuant hereto and thereto) constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior and contemporaneous agreements,
representations, understandings, negotiations and discussions between the parties, whether oral or written.
  

6.7 Modifications and Amendments. Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities at the time in
question, compliance with any of the provisions, covenants and conditions set forth in this Agreement may be waived, or any of such provisions, covenants or conditions may be amended or modified; provided, that notwithstanding the 

 
	 
	15
	  

	 

 
 foregoing, any amendment hereto or waiver hereof that adversely affects one Holder, solely in its capacity as a holder of the
shares of capital stock of the Company, in a manner that is materially different from the other Holders (in such capacity) shall require the consent of the Holder so affected. No course of dealing between any Holder or the Company and any other
party hereto or any failure or delay on the part of a Holder or the Company in exercising any rights or remedies under this Agreement shall operate as a waiver of any rights or remedies of any Holder or the Company. No single or partial exercise of
any rights or remedies under this Agreement by a party shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder or thereunder by such party.

 
 6.8 Titles and Headings. Titles and headings of sections of this Agreement are for convenience only
and shall not affect the construction of any provision of this Agreement.
  
 6.9 Waivers and
Extensions. Any party to this Agreement may waive any right, breach or default which such party has the right to waive, provided that such waiver will not be effective against the waiving party unless it is in writing, is signed by such party,
and specifically refers to this Agreement. Waivers may be made in advance or after the right waived has arisen or the breach or default waived has occurred. Any waiver may be conditional. No waiver of any breach of any agreement or provision
herein contained shall be deemed a waiver of any preceding or succeeding breach thereof nor of any other agreement or provision herein contained. No waiver or extension of time for performance of any obligations or acts shall be deemed a waiver or
extension of the time for performance of any other obligations or acts.
  
 6.10 Remedies Cumulative.
In the event that the Company fails to observe or perform any covenant or agreement to be observed or performed under this Agreement, the Investors or any other holder of Registrable Securities may proceed to protect and enforce its rights by suit
in equity or action at law, whether for specific performance of any term contained in this Agreement or for an injunction against the breach of any such term or in aid of the exercise of any power granted in this Agreement or to enforce any other
legal or equitable right, or to take any one or more of such actions, without being required to post a bond. None of the rights, powers or remedies conferred under this Agreement shall be mutually exclusive, and each such right, power or remedy
shall be cumulative and in addition to any other right, power or remedy, whether conferred by this Agreement or now or hereafter available at law, in equity, by statute or otherwise.

 
 6.11 Governing Law. This Agreement shall be governed by, interpreted under, and construed in
accordance with the internal laws of the State of New York applicable to agreements made and to be performed within the State of New York, without giving effect to any choice-of-law provisions thereof that would compel the application of the
substantive laws of any other jurisdiction.
  
 6.12 Waiver of Trial by Jury. Each party hereby
irrevocably and unconditionally waives the right to a trial by jury in any action, suit, counterclaim or other proceeding (whether based on contract, tort or otherwise) arising out of, connected with or relating to this Agreement, the transactions
contemplated hereby, or the actions of the Investors in the negotiation, administration, performance or enforcement hereof. 
  

6.13 Term. This Agreement shall terminate upon the earlier of (i) the tenth anniversary of the date of this Agreement, or (ii) the date as of which (A) all of the
Registrable Securities have been sold pursuant to a Registration Statement (but in no event prior to the applicable period referred to in Section 4(a)(3) of the Securities Act and Rule 174 thereunder (or any successor rule promulgated
thereafter by the Commission)), or (B) the Holders of all Registrable Securities are permitted to sell the Registrable Securities under Rule 144 (or any similar provision) under the Securities Act without limitation on the 

 
 
	 
	16
	  

	 

amount of securities sold or the manner of sale. The provisions of Section 3.5 and Article IV shall survive any termination.

 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]
  

 
	 
	17
	 
 
	 

  
 IN WITNESS WHEREOF, the parties have caused this
Registration Rights Agreement to be executed and delivered by their duly authorized representatives as of the date first written above.
  

	  
	 THE COMPANY:
  
 GIGCAPITAL3, INC.

 
 ________________________________________
 By: Dr. Avi S. Katz, Executive Chairman of the 

Board, President, Chief Executive Officer, and
 Secretary
  

HOLDERS: 
  
 GIGACQUISITIONS3, LLC

 
 ________________________________________
 By: Dr. Avi S. Katz, Manager

 
 NOMURA SECURITIES INTERNATIONAL, INC.
  

________________________________________
 By: 
  
 OPPENHEIMER
& CO. INC. 
  
 ________________________________________
 By: 

 
 ODEON CAPITAL GROUP LLC
  

________________________________________
 By: 
  

________________________________________
 Andrea Betti-Berutto, Director and
 Hardware Chief Technical Officer of
GigCapital3, Inc. 
  
 ________________________________________
 Peter Wang, Director and 

Software Chief Technical Officer of GigCapital3, Inc.
  
 ________________________________________

Brad Weightman, Vice President and 
 Chief Financial Officer of GigCapital3, Inc.

  
 
	 
	18EX-10.11

 Exhibit 10.11 

INVESTMENT MANAGEMENT TRUST AGREEMENT 

This Agreement is made as of [            ], 2020 by and between GigCapital3, Inc.
(the “Company”), having its principal office located at 1731 Embarcadero Rd., Suite 200, Palo Alto, CA 94303 and Continental Stock Transfer & Trust Company (the “Trustee”) located at 1 State
Street, 30th Floor, New York, New York 10004. 
 WHEREAS, the Company’s Registration Statement on Form
S-1, as amended, No. 333-236626 (together with any related registration statement filed pursuant to Rule 462(b), the “Registration
Statement”), for the initial public offering of the Company’s units (the “Public Units”), each of which consists of one share of the Company’s common stock, par value $0.0001 per share
(the “Common Stock”; and the Common Stock included in the Public Units, the “Public Common Stock”), and three-fourths of one warrant, each whole warrant (a “Warrant”) entitling
the holder thereof to purchase one share of Common Stock (such initial public offering hereinafter referred to as the “IPO”), has been declared effective as of
[            ], 2020 by the U.S. Securities and Exchange Commission; 
 WHEREAS,
the Company has entered into an Underwriting Agreement, dated as of [            ], 2020, with Nomura Securities International, Inc. and Oppenheimer & Co. Inc., as representatives
(the “Representatives”) of the underwriters (the “Underwriters”) named therein (the “Underwriting Agreement”), with respect to the IPO; 

WHEREAS, GigAcquisitions3, LLC, a Delaware limited liability company (the “Sponsor”), and the Underwriters have
committed, pursuant to written agreements, to purchase an aggregate of 750,000 of the Company’s units (the “Private Units”), each of which consists of one share of Common Stock and three-fourths of one Warrant, in a
private placement that will close simultaneously with the IPO; 
 WHEREAS, as described in the Registration Statement, $200,000,000 of the
gross proceeds of the IPO and the sale of the Private Units ($230,000,000 if the Underwriters’ over-allotment option is exercised in full) will be delivered to the Trustee to be deposited and held in a segregated trust account located in the
United States (the “Trust Account”) for the benefit of the Company, the holders of the Public Common Stock and the Underwriters (the amount to be delivered to the Trustee, and any interest subsequently earned thereon, will be
referred to herein as the “Property”; the stockholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public Stockholders”, and the Public Stockholders, the Company
and the Underwriters will be referred to together as the “Beneficiaries”); and 
 WHEREAS, the Company and the
Trustee desire to enter into this Agreement to set forth the terms and conditions pursuant to which the Trustee shall hold the Property. 

IT IS AGREED: 
 1.    
Agreements and Covenants of Trustee. The Trustee hereby agrees and covenants to: 
 (a)    Hold the Property in
trust for the Beneficiaries in accordance with the terms of this Agreement in the Trust Account, which Trust Account shall be established by the Trustee at a branch of J.P. Morgan Chase Bank, N.A. and at a brokerage institution selected by the
Trustee that is satisfactory to the Company; 
 (b)    Manage, supervise and administer the Trust Account subject to the
terms and conditions set forth herein; 

 (c)    In a timely manner, upon the instruction of the Company, to
invest and reinvest the Property in United States “government securities” within the meaning of Section 2(a)(16) of the Investment Company Act of 1940, as amended (the “Investment Company Act”), having a
maturity of 185 days or less, and/or in any open ended investment company registered under the Investment Company Act that holds itself out as a money market fund selected by the Company meeting the conditions of paragraphs (d)(2), (d)(3) and (d)(4)
of Rule 2a-7 promulgated under the Investment Company Act or any successor rule, which invests only in direct U.S. government treasury obligations, as determined by the Company. As used herein,
“government securities” shall mean United States Treasury Bills; the Trustee may not invest in any other securities or assets, it being understood that the Trust Account will earn no interest while account funds are uninvested awaiting the
Company’s instructions hereunder and the Trustee may earn bank credits or other consideration during such periods; 

(d)    Collect and receive, when due, all principal and interest income arising from the Property, all of which income
shall become part of the Property and which interest income can then be released to the Company to the extent required to pay taxes when requested by the Company as provided for in Section 1(l) below; 

(e)    Notify the Company and the Representatives of all communications received by it with respect to any Property
requiring action by the Company; 
 (f)    Supply any necessary information or documents as may be requested by the
Company or its authorized agents in connection with the Company’s preparation of the tax returns relating to assets held in the Trust Account; 

(g)    Participate in any plan or proceeding for protecting or enforcing any right or interest arising from the Property
if, as and when instructed by the Company in writing to do so; 
 (h)    Render to the Company, and to such other person
as the Company may instruct, monthly written statements of the activities of and amounts in the Trust Account reflecting all receipts and disbursements of the Trust Account; 

(i)    Commence liquidation of the Trust Account only after and promptly after (x) receipt of, and only in accordance
with, the terms of a letter from the Company (“Termination Letter”) in a form substantially similar to that attached hereto as either Exhibit A or Exhibit B signed on behalf of the Company by the Chief Executive
Officer or Chief Financial Officer of the Company or by the Executive Chairman of the Board of Directors of the Company (the “Board”) or other authorized officer of the Company, and complete the liquidation of the Trust
Account and distribute the Property in the Trust Account, including interest (less up to $100,000 of interest that may be released to the Company to pay dissolution expenses in the case of a Termination Letter in the form of Exhibit B
hereto and which interest shall be net of any taxes payable), only as directed in the Termination Letter and the other documents referred to therein, or (y) the date which is the later of (i) 18 months after the closing of the IPO (or
21 months from the closing of the IPO if the Company has executed a letter of intent for an initial business combination within 18 months from the closing of the IPO, or 24 months from the closing of the IPO if the Company has
executed a definitive agreement for an initial business combination within 21 months from the closing of the IPO) and (ii) such later date as may be approved by the Company’s stockholders in accordance with the Company’s Amended and
Restated Certificate of Incorporation, as filed with the Secretary of State of the State of Delaware (the “Amended and Restated Certificate”) if a Termination Letter has not been received by the
Trustee prior to such date, in which case the Trust Account shall be liquidated in accordance with the procedures set forth in the form of letter attached hereto as Exhibit B and the Property in the Trust Account, including interest (less up
to $100,000 of interest that may be released to the Company to pay dissolution expenses in the case of a Termination Letter in the form of Exhibit B hereto and which interest shall be net of any taxes payable), shall be distributed to the
Public Stockholders of record as of such date; provided, however, that in the event the Trustee receives a Termination Letter in a form substantially 

  
 2 

 
similar to Exhibit B hereto, or if the Trustee begins to liquidate the Property because it has received no such Termination Letter by the date specified in clause (y) of
this Section 1(i), the Trustee shall keep the Trust Account open until twelve (12) months following the date the Property has been distributed to the Public Stockholders; 

(j)    Upon written request from the Company, which may be given from time to time in a form substantially similar to that
attached hereto as Exhibit C (a “Tax Payment Withdrawal Instruction”), withdraw from the Trust Account and distribute to the Company the amount of interest earned on the Property requested by the Company to cover any
tax obligation owed by the Company as a result of assets of the Company or interest or other income earned on the Property, which amount shall be delivered directly to the Company by electronic funds transfer or other method of prompt payment, and
the Company shall forward such payment to the relevant taxing authority; provided, however, that to the extent there is not sufficient cash in the Trust Account to pay such tax obligation, the Trustee shall liquidate
such assets held in the Trust Account as shall be designated by the Company in writing to make such distribution so long as such distribution shall not result in a reduction in the principal amount initially deposited in the Trust
Account; provided, further, that if the tax to be paid is a franchise tax, the written request by the Company to make such distribution shall be accompanied by a copy of the franchise tax bill from the State of Delaware for
the Company and a written statement from the principal financial officer of the Company setting forth the actual amount payable (it being acknowledged and agreed that any such amount in excess of interest income earned on the Property shall not be
payable from the Trust Account). The written request of the Company referenced above shall constitute presumptive evidence that the Company is entitled to said funds, and the Trustee shall have no responsibility to look beyond said request; 

(k)    Upon written request from the Company, which may be given from time to time in a form substantially similar to that
attached hereto as Exhibit D (a “Stockholder Redemption Withdrawal Instruction”), the Trustee shall distribute to the Public Stockholders of record as of the applicable date the amount requested by the Company to be
used to redeem shares of Public Common Stock from Public Stockholders properly submitted in connection with a stockholder vote to approve an amendment to any provision of the Amended and Restated Certificate relating to pre-initial Business Combination (as defined below) activity or the related stockholders’ rights. The written request of the Company referenced above shall constitute presumptive evidence that the Company is
entitled to said funds, and the Trustee shall have no responsibility to look beyond said request; and 
 (l)    Not
make any withdrawals or distributions from the Trust Account other than pursuant to Sections 1(i), 1(j) or 1(k) above. 

2.     Agreements and Covenants of the Company. The Company hereby agrees and covenants to: 

(a)    Give all instructions to the Trustee hereunder in writing, signed by the Company’s President, the Executive
Chairman of the Board or the Company’s Chief Executive Officer or Chief Financial Officer. In addition, except with respect to its duties under Sections 1(i), 1(j) and 1(k) above, the Trustee shall be entitled to rely on,
and shall be protected in relying on, any verbal or telephonic advice or instruction which it, in good faith and with reasonable care, believes to be given by any one of the persons authorized above to give written instructions, provided that the
Company shall promptly confirm such instructions in writing; 
 (b)    Subject to Section 4
hereof, hold the Trustee harmless and indemnify the Trustee from and against any and all expenses, including reasonable counsel fees and disbursements, or losses suffered by the Trustee in connection with any action taken by it hereunder and in
connection with any action, suit or other proceeding brought against the Trustee involving any claim, or in connection with any claim or 

  
 3 

 
demand, which in any way arises out of or relates to this Agreement, the services of the Trustee hereunder, or the Property or any interest earned on the Property, except for expenses and losses
resulting from the Trustee’s gross negligence, fraud or willful misconduct. Promptly after the receipt by the Trustee of notice of demand or claim or the commencement of any action, suit or proceeding, pursuant to which the Trustee intends to
seek indemnification under this Section 2(b), it shall notify the Company in writing of such claim (hereinafter referred to as the “Indemnified Claim”). The Trustee shall have the right to conduct and manage the
defense against such Indemnified Claim; provided, that the Trustee shall obtain the consent of the Company with respect to the selection of counsel, which consent shall not be unreasonably withheld or delayed. The Trustee may not
agree to settle any Indemnified Claim without the prior written consent of the Company, which such consent shall not be unreasonably withheld or delayed. The Company may participate in such action with its own counsel; 

(c)    Pay the Trustee the fees set forth on Schedule A hereto, including an initial acceptance fee, annual
administration fee, and transaction processing fee which fees shall be subject to modification by the parties from time to time. It is expressly understood that the Property shall not be used to pay such fees unless and until it is distributed
pursuant to Sections 1(i) through 1(k) hereof. The Company shall pay the Trustee the initial acceptance fee and the first annual administration fee at the consummation of the IPO, and, thereafter pay the annual fee.
The Trustee shall refund to the Company the annual fee (on a pro rata basis) with respect to any period after the liquidation of the Trust Account. The Company shall not be responsible for any other fees or charges of the Trustee except as set forth
in this Section 2(c), Schedule A and as may be provided in Section 2(b) hereof; 

(d)    In connection with any vote of the Company’s stockholders regarding a merger, capital stock exchange, asset
acquisition, stock purchase, reorganization or similar business combination involving the Company and one or more businesses (the “Business Combination”), provide to the Trustee an affidavit or certificate of the inspector of
elections for the stockholder meeting verifying the vote of such stockholders regarding such Business Combination; 

(e)    Provide the Representatives with a copy of any Termination Letter(s) and/or any other correspondence that is sent
to the Trustee with respect to any proposed withdrawal from the Trust Account promptly after it issues the same; and 

(f)    In the event that the Company directs the Trustee to commence liquidation of the Trust Account pursuant to
Section 1(i), the Company agrees that it will not direct the Trustee to make any payments not specifically authorized by this Agreement. 

3.     Limitations of Liability. The Trustee shall have no responsibility or liability to: 

(a) Imply obligations, perform duties, inquire or otherwise be subject to the provisions of any agreement or document other than this agreement
and that which is expressly set forth herein; 
 (b) Take any action with respect to the Property, other than as directed in
Section 1 hereof, and the Trustee shall have no liability to any party except for liability arising out of the Trustee’s gross negligence, fraud or willful misconduct; 

(c) Institute any proceeding for the collection of any principal and income arising from, or institute, appear in or defend any proceeding of
any kind with respect to, any of the Property unless and until it shall have received written instructions from the Company given as provided herein to do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any
expenses incident thereto; 
 (d) Change the investment of any Property, other than in compliance with
Section 1(c); 

  
 4 

 (e) Refund any depreciation in principal of any Property; 

(f) Assume that the authority of any person designated by the Company to give instructions hereunder shall not be continuing unless provided
otherwise in such designation, or unless the Company shall have delivered a written revocation of such authority to the Trustee; 
 (g) The
other parties hereto or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or omitted, in good faith and in the exercise of its own best judgment, except for the Trustee’s gross negligence, fraud or
willful misconduct. The Trustee may rely conclusively and shall be protected in acting upon any order, judgment, instruction, notice, demand, certificate, opinion or advice of counsel (including counsel chosen by the Trustee, which counsel may be
the Company’s counsel), statement, instrument, report or other paper or document (not only as to its due execution and the validity and effectiveness of its provisions, but also as to the truth and acceptability of any information therein
contained) which the Trustee believes, in good faith, to be genuine and to be signed or presented by the proper person or persons. The Trustee shall not be bound by any notice or demand, or any waiver, modification, termination or rescission of this
Agreement or any of the terms hereof, unless evidenced by a written instrument delivered to the Trustee, signed by the proper party or parties and, if the duties or rights of the Trustee are affected, unless it shall give its prior written consent
thereto; 
 (h) Verify the accuracy of the information contained in the Registration Statement; 

(i) Provide any assurance that any Business Combination entered into by the Company or any other action taken by the Company is as
contemplated by the Registration Statement; 
 (j) File information returns with respect to the Trust Account with any local, state or
federal taxing authority or provide periodic written statements to the Company documenting the taxes payable by the Company, if any, relating to any interest income earned on the Property; 

(k) Prepare, execute and file tax reports, income or other tax returns and pay any taxes with respect to any income generated by, and
activities relating to, the Trust Account, regardless of whether such tax is payable by the Trust Account or the Company, including, but not limited to, income tax obligations, except pursuant to Section 1(j) hereof; or

 (l) Verify calculations, qualify or otherwise approve the Company’s written requests for distributions pursuant to Sections
1(i), 1(j) and 1(k) hereof. 
 4.     Trust Account Waiver. The Trustee has no right of set-off or any right, title, interest or claim of any kind (“Claim”) to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust
Account that it may have now or in the future. In the event the Trustee has any Claim against the Company under this Agreement, including, without limitation, under Section 2(b) or Section 2(c)
hereof, the Trustee shall pursue such Claim solely against the Company and its assets outside the Trust Account and not against the Property or any monies in the Trust Account. 

5.     Termination. This Agreement shall terminate as follows: 

(a)    If the Trustee gives written notice to the Company that it desires to resign under this Agreement, the Company shall
use its reasonable efforts to locate a successor trustee, pending which the Trustee shall continue to act in accordance with this Agreement. At such time that the Company notifies the Trustee that a successor trustee has been appointed and has
agreed to become subject to the terms of this Agreement, the Trustee shall transfer the management of the Trust Account to the successor trustee, 

  
 5 

 
including but not limited to the transfer of copies of the reports and statements relating to the Trust Account, whereupon this Agreement shall
terminate; provided, however, that in the event that the Company does not locate a successor trustee within ninety (90) days of receipt of the resignation notice from the Trustee, the Trustee may submit an application to
have the Property deposited with any court in the State of New York or with the United States District Court for the Southern District of New York and upon such deposit, the Trustee shall be immune from any liability whatsoever; 

(b)    At such time that the Trustee has completed the liquidation of the Trust Account and its obligations in accordance
with the provisions of Section 1(i) hereof (which section may not be amended except as described in Section 6(c)) and distributed the Property in accordance with the provisions of the Termination Letter,
this Agreement shall terminate except with respect to Section 2(b). 
 6.     Miscellaneous. 

(a)    The Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below
with respect to funds transferred from the Trust Account. The Company and the Trustee will each restrict access to confidential information relating to such security procedures to authorized persons. Each party must notify the other party
immediately if it has reason to believe unauthorized persons may have obtained access to such information, or of any change in its authorized personnel. In executing funds transfers, the Trustee will rely upon all information supplied to it by the
Company, including, account names, account numbers, and all other identifying information relating to a beneficiary, beneficiary’s bank or intermediary bank. Except for any liability arising out of the Trustee’s gross negligence, fraud or
willful misconduct, the Trustee shall not be liable for any loss, liability or expense resulting from any error in the information or transmission of the funds. 

(b)    This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New
York, without giving effect to conflict of laws. It may be executed in several counterparts, each one of which shall constitute an original, and together shall constitute but one instrument. 

(c)    This Agreement contains the entire agreement and understanding of the parties hereto with respect to the subject
matter hereof. Except for Sections 1(i) and 1(k) hereof (each of which may not be modified, amended or deleted without the affirmative vote of sixty five percent (65%) of the then outstanding shares of Common Stock; provided,
that no such amendment will affect any Public Stockholder who has otherwise indicated his election to redeem his shares of Common Stock in connection with a stockholder vote sought to amend this Agreement), this Agreement or any provision hereof may
be changed, amended or modified by a writing signed by each of the parties hereto. 
 (d)    The Trustee may rely
conclusively on the certification from the inspector of elections referenced above and shall be relieved of all liability to any party for executing the proposed amendment in reliance thereon. The parties hereto consent to the jurisdiction and venue
of any state or federal court located in the City of New York, State of New York, for purposes of resolving any disputes hereunder. AS TO ANY CLAIM, CROSS-CLAIM OR COUNTERCLAIM IN ANY WAY RELATING TO THIS AGREEMENT, EACH PARTY WAIVES THE RIGHT TO
TRIAL BY JURY. 

  
 6 

 (e)    Any notice, consent or request to be given in connection with any
of the terms or provisions of this Agreement shall be in writing and shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or by facsimile transmission: 

if to the Trustee, to: 

Continental Stock Transfer & Trust Company 

1 State Street, 30th Floor 

New York, New York 10004 
 Attn:
Francis Wolf and Celeste Gonzalez 
 Email: fwolf@continentalstock.com 

Email: cgonzalez@continentalstock.com 

if to the Company, to: 

GigCapital3, Inc. 
 1731
Embarcadero Rd., Suite 200 
 Palo Alto, CA 94303 

Attn: Dr. Avi S. Katz 

Email: avi@gigcapitalglobal.com     

with a copy to: 

Crowell & Moring LLP 

3 Embarcadero Center, 26th Floor 

San Francisco, CA 94111 
 Attn:
Jeffrey Selman 
 Fax: (415) 986-2827 

in either case, with a copy on behalf of the Representatives to: 

Nomura Securities International, Inc. 

Worldwide Plaza 
 309 West 49th Street 
 New York, NY 10019-7316 

Attn: Head of Equity Capital Markets and Solutions 

Fax: (646) 587-8740 

Oppenheimer & Co., Inc. 

85 Broad Street 
 New York, NY
10019-7316 
 Attn: General Counsel 

Fax: 
 with a copy to: 

Sidley Austin LLP 
 787 7th Avenue 
 New York, NY 10019 

Attn: Edward F. Petrosky, Esq. 

Fax: 
 (f) This Agreement may
not be assigned by the Trustee without the prior consent of the Company. This Agreement may be assigned by the Company to a wholly-owned subsidiary of the Company upon written notice to the Trustee. 

  
 7 

 (g) Each of the Company and the Trustee hereby represents that it has the full right and
power and has been duly authorized to enter into this Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that it shall not make any claims or proceed against the Trust Account,
including by way of set-off, and shall not be entitled to any funds in the Trust Account under any circumstance. 

(h) This Agreement is the joint product of the Trustee and the Company and each provision hereof has been subject to the mutual consultation,
negotiation and agreement of such parties and shall not be construed for or against any party hereto. 
 (i) This Agreement may be executed
in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or electronic
transmission shall constitute valid and sufficient delivery thereof. 
 (j) Each of the Company and the Trustee hereby acknowledges and
agrees that the Representatives, on behalf of the Underwriters, are third party beneficiaries of this Agreement. 
 (k) Except as specified
herein, no party to this Agreement may assign its rights or delegate its obligations hereunder to any other person or entity. 
 (l) The
Trustee hereby consents to the inclusion of Continental Stock Transfer & Trust Company in the Registration Statement and other materials relating to the IPO. 

[Signature page follows] 

  
 8 

 IN WITNESS WHEREOF, the parties have duly executed this Investment Management Trust
Agreement as of the date first written above. 
  

			
	 CONTINENTAL STOCK TRANSFER

& TRUST COMPANY, as Trustee

		
	By:	 	  

	Name:	 	  

	Title:	 	  

	
	GIGCAPITAL3, INC.
		
	By:	 	  

	Name:	 	 Avi S. Katz

	Title:	 	 Chief Executive Officer

  
 Signature page to
Investment Management Trust Agreement 

 SCHEDULE A 
  

							
	 Fee Item
	  	 Time and method of payment
	  	Amount	 
	Initial set-up fee.	  	Initial closing of IPO by wire transfer.	  	$	2,000	 
	Trustee administration fee	  	Payable annually. First year fee payable, at initial closing of IPO by wire transfer, thereafter by wire transfer or check.	  	$	10,000	 
	Transaction processing fee for disbursements to Company under Sections 1(i) and 1(j)	  	Deduction by Trustee from accumulated income following disbursement made to Company under Section 1	  	$	250	 
	Paying Agent services as required pursuant to Section 1(i) and 1(k)	  	Billed to Company upon delivery of service pursuant to Section 1(i) and 1(k)	  	 	Prevailing rates	 

 EXHIBIT A 

[Letterhead of Company] 

[Insert date] 
 Continental Stock
Transfer & Trust Company 
 1 State Street Plaza, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

  

	 	Re:	 Trust Account No. [●] Termination Letter 

Ladies and Gentlemen: 
 Pursuant
to Section 1(i) of the Investment Management Trust Agreement between GigCapital3, Inc., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company
(“Trustee”), dated as of [•], 2020 (“Trust Agreement”), this is to advise you that the Company has entered into an agreement with
                             (“Target Business”) to consummate a business combination
with Target Business (“Business Combination”) on or about [insert date]. The Company shall notify you at least seventy-two (72) hours in advance of the actual date
fixed for the consummation of the Business Combination (“Consummation Date”). Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement. 

In accordance with the terms of the Trust Agreement, we hereby authorize you to commence to liquidate all of the assets of the Trust Account
on [insert date], such that, on the Consummation Date, all of the funds held in the Trust Account will be immediately available for transfer to the account or accounts that the Company shall direct on the Consummation Date. It is
acknowledged and agreed that while the funds are on deposit in the Trust Account awaiting such transfer, the Company will not earn any interest or dividends. 

On the Consummation Date (i) counsel for the Company shall deliver to you written notification that the Business Combination has been
consummated, or will be consummated concurrently with your transfer of funds to the accounts directed by the Company (the “Notification”) and (ii) the Company shall deliver to you (a) a certificate (the “ (the
“Vote Verification Certificate”) of its Chief Executive Officer, which verifies either that (i) the Business Combination has been approved by a vote of the Company’s stockholders or (ii) no vote of the
Company’s stockholders for the approval of the Business Combination is required and none has been held, and (b) joint written instruction signed by the Company and the Representatives with respect to the transfer of the funds held in the
Trust Account, including payment of amounts owed to Public Stockholders who have properly exercised their redemption rights (the “Instruction Letter”). You are hereby directed and authorized to transfer the funds held in the
Trust Account immediately upon your receipt of the Notification, the Vote Verification Certificate and the Instruction Letter, in accordance with the terms of the Instruction Letter. In the event that certain deposits held in the Trust Account may
not be liquidated by the Consummation Date without penalty, you will notify the Company in writing of the same and the Company shall direct you as to whether such funds should remain in the Trust Account and be distributed after the Consummation
Date to the Company. Upon the distribution of all the funds, your obligations under the Trust Agreement shall be terminated. 
 In the event
that the Business Combination is not consummated on the Consummation Date described in the notice thereof and we have not notified you on or before the original Consummation Date of a new Consummation Date, then upon receipt by you of written
instructions from us, the funds held in the Trust Account shall be reinvested as provided in Section 1(c) of the Trust Agreement on the business day immediately following such original Consummation Date or as soon
thereafter as possible. 

 
			
	Very truly yours,
	
	GIGCAPITAL3, INC.

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	AGREED TO AND ACKNOWLEDGED BY:
	  
 NOMURA SECURITIES INTERNATIONAL,
INC.

			
		
	By:	 	  

	Name:	 	
	Title:	 	

			
	
	OPPENHEIMER & CO. INC.

			
		
	By:	 	  

	Name:	 	
	Title:	 	

 EXHIBIT B 

[Letterhead of Company] 

[Insert date] 
 Continental Stock
Transfer & Trust Company 
 1 State Street Plaza, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

  

	 	Re:	 Trust Account No. [●] Termination Letter 

Ladies and Gentlemen: 
 Pursuant
to Section 1(i) of the Investment Management Trust Agreement between GigCapital3, Inc., a Delaware corporation (the “Company”) and Continental Stock Transfer & Trust Company
(“Trustee”), dated as of [●], 2020 (“Trust Agreement”), this is to advise you that the Company has been unable to effect a Business Combination within the time frame specified in the
Company’s Amended and Restated Certificate of Incorporation, as described in the Company’s prospectus relating to the IPO. Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement. 

In accordance with the terms of the Trust Agreement, we hereby authorize you to liquidate all of the assets in the Trust Account on [●],
20[    ] and to keep the total proceeds thereof in the Trust Account to await distribution to the Public Stockholders. The Company has selected [●], 20[    ], as the effective date for the purpose of
determining when the Public Stockholders will be entitled to receive their share of the liquidation proceeds. You agree to be the Paying Agent of record and, in your separate capacity as Paying Agent, agree to distribute said funds directly to the
Public Stockholders in accordance with the terms of the Trust Agreement and the Amended and Restated Certificate of Incorporation of the Company. Upon the distribution of all the funds, your obligations under the Trust Agreement shall be terminated.

  

			
	Very truly yours,
	
	GIGCAPITAL3, INC.

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

  

	cc:	 Nomura Securities International, Inc. 

Oppenheimer & Co. Inc. 

 EXHIBIT C 

[Letterhead of Company] 

[Insert date] 
 Continental Stock
Transfer & Trust Company 
 1 State Street Plaza, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

  

	 	Re:	 Trust Account No. [●] Withdrawal Instruction 

Ladies and Gentlemen: 
 Pursuant
to Section 1(j) of the Investment Management Trust Agreement between GigCapital3, Inc., a Delaware corporation (the “Company”) and Continental Stock Transfer & Trust Company
(“Trustee”), dated as of [●], 2020 (“Trust Agreement”), the Company hereby requests that you deliver to the Company $[●] of the interest income earned on the Property as of the date
hereof. Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement. 
 The Company needs such
funds to pay for the tax obligations as set forth on the attached tax return or tax statement. In accordance with the terms of the Trust Agreement, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your
receipt of this letter to the Company’s operating account at: 
 [WIRE INSTRUCTION INFORMATION] 

 

			
	Very truly yours,
	
	GIGCAPITAL3, INC.

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

  

	cc:	 Nomura Securities International, Inc. 

Oppenheimer & Co. Inc. 

 EXHIBIT D 

[Letterhead of Company] 

[Insert date] 
 Continental Stock
Transfer & Trust Company 
 1 State Street Plaza, 30th Floor 

New York, New York 10004 
 Attn: Francis Wolf and Celeste Gonzalez

  

	 	Re:	 Trust Account No. [•] Stockholder Redemption Withdrawal Instruction

 Ladies and Gentlemen: 

Pursuant to Section 1(k) of the Investment Management Trust Agreement between GigCapital3, Inc., a Delaware corporation (the
“Company”) and Continental Stock Transfer & Trust Company (“Trustee”), dated as of [●], 2020 (“Trust Agreement”), the Company hereby requests that you deliver
$[                 ] of the principal and interest income earned on the Property as of the date hereof to a segregated account held by you for further transfer to the
institutions representing the Public Stockholders who have properly elected to have their shares of Public Common Stock redeemed by the Company as described below. Capitalized terms used but not defined herein shall have the meanings set forth in
the Trust Agreement. 
 The Company needs such funds to pay the Public Stockholders who have properly elected to have their shares of Public
Common Stock redeemed by the Company in connection with a stockholder vote to approve an amendment to the Company’s Amended and Restated Certificate of Incorporation that would affect the substance or timing of the Company’s obligation to
redeem 100% of the shares of Public Common Stock if the Company has not consummated an initial Business Combination within such time as is described in the Company’s Amended and Restated Certificate of Incorporation, or that would otherwise
affect provisions thereof relating to the Company’s pre-initial Business Combination activity or related stockholder rights. As such, you are hereby directed and authorized to transfer (via wire transfer)
such funds promptly upon your receipt of this letter to a segregated account held by you on behalf of such Public Stockholders. 
  

			
	Very truly yours,
	
	GIGCAPITAL3, INC.

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

  

	cc:	 Nomura Securities International, Inc. 

Oppenheimer & Co. Inc.

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