EX-10.2



 Exhibit 10.2 

REGISTRATION RIGHTS AGREEMENT 

This REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of December 18, 2014, is by and among
Conkwest, Inc., a Delaware corporation (the “Company”), and each of the undersigned purchasers (each, a “Purchaser,” and collectively, the “Purchasers”). 

RECITALS 
 A. In
connection with the Subscription and Investment Agreement by and among the parties hereto, dated as of December 18, 2014 (the “Subscription Agreement”), the Company has agreed, upon the terms and subject to the conditions of
the Subscription Agreement, to issue and sell to each Purchaser the Securities (as defined in the Subscription Agreement). 
 B. To induce
the Purchasers to consummate the transactions contemplated by the Subscription Agreement, the Company has agreed to provide certain registration rights under the Securities Act of 1933, as amended, and the rules and regulations thereunder, or any
similar successor statute (collectively, the “1933 Act”), and applicable state securities laws. 
 AGREEMENT

 NOW, THEREFORE, in consideration of the premises and the mutual covenants contained herein and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and each of the Purchasers hereby agree as follows: 
  

	1.	Definitions. 

 Capitalized terms used herein and not otherwise defined herein shall have
the respective meanings set forth in the Subscription Agreement. As used in this Agreement, the following terms shall have the following meanings: 

(a) “Business Day” means any day other than Saturday, Sunday or any other day on which commercial banks in California
are authorized or required by law to remain closed. 
 (b) “Effective Date” means the date that the
applicable Registration Statement has been declared effective by the SEC. 
 (c) “Exempt Financing” means (i) a
financing in which the Company issues shares of Common Stock at a purchase price per share of Common Stock in excess of the purchase price per share paid by the Purchasers (as adjusted for stock splits, stock dividends, recapitalizations or similar
events) or (ii) a financing in which the Company issues securities convertible, exercisable or exchangeable for shares of Common Stock at a purchase price per security (including any amount required to be paid to the Company in connection with
any conversion, exercise or exchange thereunder) in excess of the purchase price per share paid by the Purchasers (as adjusted for stock splits, stock dividends, recapitalizations or similar events). 

(d) “Filing Deadline” means (i) with respect to the Demand Registration Statement








 
required to be filed pursuant to Section 2(a), the later of (A) the 90th calendar day after the date of consummation of a Qualified
IPO,(B) the 30th calendar day immediately preceding the expiration of the lock-up agreement described in Section 2(a)(ii) and (C) the 30th calendar day following receipt of the written request for Demand Registration pursuant to Section 2(a)(i), and (ii) with respect to any additional Registration Statements that may be
required to be filed by the Company pursuant to this Agreement, the date on which the Company was required to file such additional Registration Statement pursuant to the terms of this Agreement. 

(e) “Investor” means a Purchaser or any transferee or assignee of any Registrable Securities, as applicable, to whom a
Purchaser assigns its rights in accordance with this Agreement and who agrees to become bound by the provisions of this Agreement in accordance with Section 9 and any transferee or assignee thereof to whom a transferee or assignee of any
Registrable Securities assigns its rights under this Agreement and who agrees to become bound by the provisions of this Agreement in accordance with Section 9. 

(f) “Person” means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust,
an unincorporated organization or a government or any department or agency thereof. 
 (g) “Piggyback Registrable
Securities” means (i) the aggregate number of Securities issued under the Subscription Agreement on the Initial Closing Date, the First Additional Closing Date and the Second Additional Closing Date, and (ii) any capital stock of
the Company issued or issuable with respect to such Securities, including, without limitation, (1) as a result of any stock split, stock dividend, recapitalization, exchange or similar event or otherwise and (2) shares of capital stock of
the Company into which such Securities are converted or exchanged and shares of capital stock of a successor entity into which such Securities are converted or exchanged. 

(h) “register,” “registered,” and “registration” refer to a registration effected by
preparing and filing one or more Registration Statements in compliance with the 1933 Act and pursuant to Rule 415 and the declaration of effectiveness of such Registration Statement(s) by the SEC. 

(i) “Registrable Securities” means (i) the Securities issued on the Second Additional Closing Date, and
(ii) any capital stock of the Company issued or issuable with respect to such Securities, including, without limitation, (1) as a result of any stock split, stock dividend, recapitalization, exchange or similar event or otherwise and
(2) shares of capital stock of the Company into which such Securities are converted or exchanged and shares of capital stock of a successor entity into which such Securities are converted or exchanged. 

(j) “Registration Statement” means a registration statement or registration statements of the Company filed under the
1933 Act covering Registrable Securities. 
 (k) “Required Holders” means the holders of at least a majority
of the Registrable Securities (excluding any Registrable Securities held by the Company or any of its Subsidiaries); provided, however, that Required Holders shall mean the holders of at least a majority of the Piggyback Registrable Securities with
respect to any amendment of Section 2(g) or the definition of “Piggyback Registrable Securities”. 

  
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 (l) “Required Registration Amount” means the aggregate number of
Securities issued on the Second Additional Closing Date pursuant to the Subscription Agreement; provided that the Required Registration Amount shall not include any shares not included in a registration statement due to reductions made in accordance
with Section 2(f). 
 (m) “Rule 144” means Rule 144 promulgated by the SEC under the 1933 Act, as such rule
may be amended from time to time, or any other similar or successor rule or regulation of the SEC that may at any time permit the Investors to sell securities of the Company to the public without registration. 

(n) “Rule 415” means Rule 415 promulgated by the SEC under the 1933 Act, as such rule may be amended from time to
time, or any other similar or successor rule or regulation of the SEC providing for the offering of securities on a continuous or delayed basis. 

(o) “SEC” means the United States Securities and Exchange Commission or any successor thereto. 

 

	2.	Registration. 

 (a) Demand Registration. 

(i) Following the consummation by the Company of the Initial Public Offering, if the Company shall receive from Investors holding not less
than 50.1% of the Registrable Securities a written request that the Company effect any registration with respect to all or a part of the Registrable Securities owned by such Investors (each such request shall be referred to herein as a
“Demand Registration”), the Company shall, subject to the terms of this Agreement, including the terms set forth in Section 2(a)(ii) hereof, prepare and, as soon as practicable, but in no event later than the Filing Deadline,
file with the SEC an initial Registration Statement on Form S-3, if the Company is eligible to use Form S-3, otherwise, on Form S-1, covering the resale of all of the Registrable Securities, provided that such initial Registration Statement shall
register for resale at least the number of shares of Common Stock equal to the Required Registration Amount as of the date such Registration Statement is initially filed with the SEC. Such initial Registration Statement, and each other Registration
Statement required to be filed pursuant to the terms of this Agreement, shall contain (except if otherwise directed by the Required Holders) the “Selling Stockholders” and “Plan of Distribution” sections in
substantially the form attached hereto as Exhibit A. The Company shall use its reasonable best efforts to have such initial Registration Statement, and each other Registration Statement required to be filed pursuant to the terms of
this Agreement, declared effective by the SEC as soon as practicable. 
 (ii) Each Investor holding Registrable Securities acknowledges and
agrees that, if requested by the underwriter for the Company’s Qualified IPO, such Investor will execute and deliver a lock-up agreement to such underwriter on terms no less favorable to the Investor than the terms of those provided in the
lock-up agreements which other shareholders of the Company executed and delivered to the underwriter in connection with the Qualified IPO. 

  
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 (iii) Notwithstanding anything contained in Section 2(a)(i) hereof to the contrary, the
Company shall not be obligated to effect, or take any action to effect, any such registration pursuant to Section 2(a)(i) with respect to the Registrable Securities: 

(1) After the Company has consummated one (1) Demand Registration pursuant to Section 2.1(a)(i); 

(2) In any particular jurisdiction in which the Company would be required to execute a general consent to service of process in effecting
such registration, unless the Company is already subject to service of process in such jurisdiction and except as may be required by the 1933 Act or applicable rules or regulations thereunder; or 

(3) If at the time the Company receives the Demand Registration request to register Registrable Securities, the Company or any of its
Subsidiaries is engaged in confidential negotiations to effect a proposed material transaction or other confidential business activities, disclosure of which would be required in such registration statement (but would not be required if such
registration statement were not filed), and the Board of Directors of the Company determines in good faith that such disclosure would have a material adverse effect on the Company, any of its Subsidiaries or their respective businesses, or on the
ability of any of the foregoing Persons to effect a proposed material transaction, including a proposed material acquisition, disposition, financing, reorganization, recapitalization or similar transaction; provided, however, that
(a) a deferral of the filing of a registration statement pursuant to this Section 2(a)(iii)(3) shall be lifted if the negotiations or other activities are disclosed or if the Company determines such negotiations have been terminated, and
the requested registration statement shall be filed by the later of (A) the applicable Filing Deadline or (B) thirty (30) calendar days from such disclosure or determination, and (b) the deferral provided pursuant to this
Section 2(a)(iii)(3) shall not be used more than once in any consecutive 12-month period. 
 (b) Legal Counsel. Subject to
Section 5 hereof, Sorrento Therapeutics, Inc. (the “Lead Investor”) shall have the right to select one (1) legal counsel to review and oversee, solely on its behalf, any registration pursuant to this Section 2
(“Legal Counsel”). 
 (c) Reserved. 

(d) Sufficient Number of Shares Registered. In the event the number of shares available under any Registration Statement is
insufficient to cover all of the Registrable Securities required to be covered by such Registration Statement or an Investor’s allocated portion of the Registrable Securities pursuant to Section 2(h), the Company shall amend such
Registration Statement (if permissible), or file with the SEC a new Registration Statement (on the short form available therefor, if applicable), or both, so as to cover at least the Required Registration Amount as of the Trading Day immediately
preceding the date of the filing of such amendment or new Registration Statement, in each case, as soon as practicable, but in any event not later than fifteen (15) days after the Company, acting in good faith, first becomes aware of the
necessity therefor (but taking account of any position of the staff of the SEC (the “Staff”)with respect to the date on which the Staff will permit such amendment to the Registration Statement and/or such new Registration Statement
(as the case may be) to be filed with the SEC). The Company shall use its reasonable best efforts to cause such amendment to such Registration Statement and/or such new Registration Statement (as the case may be) to become effective as soon as
practicable following the filing thereof with the SEC. 

  
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 (e) Effect of Failure to File and Obtain and Maintain Effectiveness of any Registration
Statement. If (i) a Registration Statement covering the resale of all of the Registrable Securities required to be covered thereby (disregarding any reduction pursuant to Section 2(f)) and required to be filed by the Company pursuant to
this Agreement is not filed with the SEC on or before the Filing Deadline for such Registration Statement (a “Filing Failure”) (it being understood that if the Company files a Registration Statement without affording Legal Counsel
the opportunity to review and comment on the same as required by Section 3(c) hereof, the Company shall be deemed to not have satisfied this clause (i)(A) and such event shall be deemed to be a Filing Failure), (ii) the Company shall not
have filed a “final” prospectus for such Registration Statement with the SEC under Rule 424(b) in accordance with Section 3(b) within one (1) Business Day immediately following the Effective Date for such Registration Statement
(whether or not such a prospectus is technically required by such rule) (the “Acceleration Failure”), (iii) other than during an Allowable Grace Period (as defined below), on any day after the Effective Date of a Registration
Statement sales of all of the Registrable Securities required to be included on such Registration Statement (disregarding any reduction pursuant to Section 2(f)) cannot be made pursuant to such Registration Statement (including, without
limitation, because of a failure to keep such Registration Statement effective, a failure to disclose such information as is necessary for sales to be made pursuant to such Registration Statement, a suspension or delisting of (or a failure to timely
list) the Securities on the applicable Trading Market (as defined in the Subscription Agreement), or a failure to register a sufficient number of Securities or by reason of a stop order) or the prospectus contained therein is not available for use
for any reason (a “Maintenance Failure”), or (iv) if a Registration Statement is not effective for any reason or the prospectus contained therein is not available for use for any reason, the Company fails to file with the SEC
any required reports under Section 13 or 15(d) of the 1934 Act (as defined below) such that it is not in compliance with Rule 144(c)(1) (or Rule 144(i)(2), if applicable) (a “Current Public Information Failure” and, together
with a Filing Failure, Acceleration Failure and Maintenance Failure, a “Failure”)) as a result of which any of the Investors are unable to sell Registrable Securities without restriction under Rule 144 (including, without
limitation, volume restrictions), then, as partial relief for the damages to any holder by reason of any such delay in, or reduction of, its ability to sell the Securities (which remedy shall not be exclusive of any other remedies available at law
or in equity), the Company shall pay to each holder of Registrable Securities relating to such Registration Statement an amount in cash equal to one percent (1%) of the aggregate purchase price paid by such Investor pursuant to the Subscription
Agreement for any Registrable Securities held by such Investor on the date of the applicable Failure (or if such Failure relates to only a portion of the Registrable Securities, then only with respect to the Investor’s allocable cash investment
with respect to such portion of such Registrable Securities) (1) on the date of such Failure, as applicable, and (2) on every thirty (30) day anniversary of (I) a Filing Failure until such Filing Failure is cured; (II) an
Acceleration Failure until such Acceleration Failure is cured; (III) a Maintenance Failure until such Maintenance Failure is cured; and (IV) a Current Public Information Failure until the earlier of (i) the date such Current Public Information
Failure is cured and (ii) such time that such public information is no longer required pursuant to Rule 144 (in each case, prorated for periods totaling less than thirty (30) days). The payments to which a holder of Registrable Securities
shall be entitled pursuant to this Section 2(e) are referred to herein as “Registration Delay 

  
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Payments.” Following the initial Registration Delay Payment for any particular event or failure (which shall be paid on the date of such event or failure, as set forth above), without
limiting the foregoing, if an event or failure giving rise to the Registration Delay Payments is cured prior to any thirty (30) day anniversary of such event or failure, then such Registration Delay Payment shall be made on the third (3rd) Business Day after such cure. In the event the Company fails to make Registration Delay Payments in a timely manner in accordance with the foregoing, such Registration Delay Payments shall
bear interest at the rate of one percent (1%) per month (prorated for partial months) until paid in full. 
 (f)
Offering. No Investor shall be named as an “underwriter” in any Registration Statement without such Investor’s prior written consent. Notwithstanding anything to the contrary contained in this Agreement, in the event the Staff
or the SEC seeks to characterize any offering pursuant to a Registration Statement filed pursuant to this Agreement as constituting an offering of securities by, or on behalf of, the Company, or in any other manner, such that the Staff or the SEC
does not permit such Registration Statement to become effective and used for resales in a manner that does not constitute such an offering and that permits the continuous resale at the market by the Investors participating therein (or as otherwise
may be acceptable to each Investor) without being named therein as an “underwriter,” then the Company shall reduce the number of shares to be included in such Registration Statement by all Investors until such time as the Staff and the SEC
shall so permit such Registration Statement to become effective as aforesaid. In making such reduction, the Company shall reduce the number of shares to be included by all Investors on a pro rata basis (based upon the number of Registrable
Securities otherwise required to be included for each Investor) unless the inclusion of shares by a particular Investor or a particular set of Investors are resulting in the Staff or the SEC’s “by or on behalf of the Company” offering
position, in which event the shares held by such Investor or set of Investors shall be the only shares subject to reduction (and if by a set of Investors, on a pro rata basis by such Investors or on such other basis as would result in the exclusion
of the least number of shares by all such Investors). In addition, in the event that the Staff or the SEC requires any Investor seeking to sell securities under a Registration Statement filed pursuant to this Agreement to be specifically identified
as an “underwriter” in order to permit such Registration Statement to become effective, and such Investor does not consent to being so named as an underwriter in such Registration Statement, then, in each such case, the Company shall
reduce the total number of Registrable Securities to be registered on behalf of such Investor, until such time as the Staff or the SEC does not require such identification or until such Investor accepts such identification and the manner thereof.
Any reduction pursuant to this paragraph will first reduce all Registrable Securities other than those issued pursuant to the Subscription Agreement. In the event of any reduction in Registrable Securities pursuant to this paragraph, an affected
Investor shall have the right to require, upon delivery of a written request to the Company signed by such Investor, the Company to file a registration statement within thirty (30) days of such request (subject to any restrictions imposed by
Rule 415 or required by the Staff or the SEC) for resale by such Investor in a manner acceptable to such Investor, and the Company shall, following such request, use its reasonable best efforts to cause to be declared effective and to keep effective
such registration statement in the same manner as otherwise contemplated in this Agreement for registration statements hereunder, in each case until such time as: (i) all Registrable Securities held by such Investor have been registered and
sold pursuant to an effective Registration Statement in a manner acceptable to such Investor, (ii) all Registrable Securities may be resold by such Investor without restriction (including, without


  
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limitation, volume limitations) pursuant to Rule 144 (taking account of any Staff position with respect to “affiliate” status) and without the need for current public information
required by Rule 144(c)(1) (or Rule 144(i)(2), if applicable), or (iii) such Investor agrees to be named as an underwriter in any such Registration Statement in a manner acceptable to such Investor as to all Registrable Securities held by such
Investor and that have not theretofore been included in a Registration Statement under this Agreement. 
 (g) Piggyback
Registrations. Without limiting any obligation of the Company hereunder or under the Subscription Agreement, if there is not an effective Registration Statement covering all of the Piggyback Registrable Securities or a prospectus contained
therein is not available for use and the Company shall determine to prepare and file with the SEC a registration statement relating to an offering for its own account or the account of others under the 1933 Act of any of its equity securities (other
than on Form S-4 or Form S-8 (each as promulgated under the 1933 Act) or their then equivalents relating to equity securities to be issued solely in connection with any acquisition of any entity or business or equity securities issuable in
connection with the Company’s equity compensation or other employee benefit plans), then the Company shall deliver to each Investor holding Piggyback Registrable Securities a written notice of such determination and, if within fifteen
(15) days after the date of the delivery of such notice, any such Investor shall so request in writing, the Company shall include in such registration statement all or any part of such Piggyback Registrable Securities such Investor requests to
be registered; provided, however, the Company shall not be required to register any Piggyback Registrable Securities pursuant to this Section 2(g) that are eligible for resale pursuant to Rule 144 without restriction (including, without
limitation, volume restrictions) and without the need for current public information required by Rule 144(c)(1) (or Rule 144(i)(2), if applicable) or that are the subject of a then-effective Registration Statement. 

(h) Allocation of Registrable Securities. The initial number of Registrable Securities included in any Registration Statement and any
increase or decrease in the number of Registrable Securities included therein shall be allocated pro rata among the Investors based on the number of Registrable Securities held by each Investor at the time such Registration Statement covering such
initial number of Registrable Securities or increase or decrease thereof is declared effective by the SEC. In the event that an Investor sells or otherwise transfers any of such Investor’s Registrable Securities, each transferee or assignee (as
the case may be) that becomes an Investor shall be allocated a pro rata portion of the then-remaining number of Registrable Securities included in such Registration Statement for such transferor or assignee (as the case may be). Any shares of Common
Stock included in a Registration Statement and which remain allocated to any Person which ceases to hold any Registrable Securities covered by such Registration Statement shall be allocated to the remaining Investors, pro rata based on the number of
Registrable Securities then held by such Investors which are covered by such Registration Statement. 
 (i) No Inclusion of Other
Securities. In no event shall the Company include any securities other than Registrable Securities on any Registration Statement without the prior written consent of the Required Holders. 

  
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	3.	Related Obligations. 

 The Company shall use its reasonable best efforts to effect the
registration of the Registrable Securities in accordance with the intended method of disposition thereof, and, pursuant thereto, the Company shall have the following obligations: 

(a) The Company shall promptly prepare and file with the SEC a Registration Statement with respect to the Registrable Securities (but
in no event later than the applicable Filing Deadline) and use its reasonable best efforts to cause such Registration Statement to become effective as soon as practicable after such filing. Subject to Allowable Grace Periods (as defined below), the
Company shall keep each Registration Statement effective (and the prospectus contained therein available for use) pursuant to Rule 415 for resales by the Investors on a delayed or continuous basis at then-prevailing market prices (and not fixed
prices) at all times until the earlier of (i) the date as of which all of the Investors may sell all of the Registrable Securities required to be covered by such Registration Statement (disregarding any reduction pursuant to Section 2(f))
without restriction pursuant to Rule 144 (including, without limitation, volume restrictions) and without the need for current public information required by Rule 144(c)(1) (or Rule 144(i)(2), if applicable) or (ii) the date on which the
Investors shall have sold all of the Registrable Securities covered by such Registration Statement (the “Registration Period”). Notwithstanding anything to the contrary contained in this Agreement, the Company shall ensure that,
when filed and at all times while effective, each Registration Statement (including, without limitation, all amendments and supplements thereto) and the prospectus (including, without limitation, all amendments and supplements thereto) used in
connection with such Registration Statement (1) shall not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein, or necessary to make the statements therein (in the case of prospectuses,
in the light of the circumstances in which they were made) not misleading and (2) will disclose (whether directly or through incorporation by reference to other SEC filings to the extent permitted) all material information regarding the Company
and its securities. The Company shall submit to the SEC, within two (2) Business Days after the later of the date that (i) the Company learns that no review of a particular Registration Statement will be made by the Staff or that the Staff
has no further comments on a particular Registration Statement (as the case may be) and (ii) the consent of Legal Counsel is obtained pursuant to Section 3(c) (which consent shall be immediately sought), a request for acceleration of
effectiveness of such Registration Statement to a time and date not later than forty-eight (48) hours after the submission of such request. 

(b) Subject to Section 3(r) of this Agreement, the Company shall prepare and file with the SEC such amendments (including, without
limitation, post-effective amendments) and supplements to each Registration Statement and the prospectus used in connection with each such Registration Statement, which prospectus is to be filed pursuant to Rule 424 promulgated under the 1933 Act,
as may be necessary to keep each such Registration Statement effective at all times during the Registration Period for such Registration Statement, and, during such period, comply with the provisions of the 1933 Act with respect to the disposition
of all Registrable Securities of the Company required to be covered by such Registration Statement until such time as all of such Registrable Securities shall have been disposed of in accordance with the intended methods of disposition by the seller
or sellers thereof as set forth in such Registration Statement; provided, however, by 8:30 a.m. (California time) on the Business Day immediately following each Effective Date, the Company shall file with the SEC in accordance with Rule 424(b) under
the 1933 Act the final prospectus to be used in connection with sales pursuant to the applicable 

  
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Registration Statement. In the case of amendments and supplements to any Registration Statement which are required to be filed pursuant to this Agreement (including, without limitation,
pursuant to this Section 3(b)) by reason of the Company filing a report on Form 10-Q or Form 10-K or any analogous report under the Securities Exchange Act of 1934, as amended (the “1934 Act”), the Company shall have
incorporated such report by reference into such Registration Statement, if applicable, or shall file such amendments or supplements with the SEC within one] (1) Business Day of the day on which the 1934 Act report is filed which created the
requirement for the Company to amend or supplement such Registration Statement. 
 (c) The Company shall (A) permit Legal
Counsel to review and comment upon (i) each Registration Statement at least five (5) Business Days prior to its filing with the SEC and (ii) all amendments and supplements to each Registration Statement (including, without limitation,
the prospectus contained therein) (except for Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and any similar or successor reports) within a reasonable number of days prior to their filing with the SEC, and
(B) not file any Registration Statement or amendment or supplement thereto in a form to which Legal Counsel reasonably objects. The Company shall not submit a request for acceleration of the effectiveness of a Registration Statement or any
amendment or supplement thereto or to any prospectus contained therein without the prior consent of Legal Counsel, which consent shall not be unreasonably withheld, delayed or conditioned. The Company shall promptly furnish to Legal Counsel, without
charge, (i) copies of any correspondence from the SEC or the Staff to the Company or its representatives relating to each Registration Statement, provided that such correspondence shall not contain any material, non-public information regarding
the Company or any of its Subsidiaries (as defined in the Subscription Agreement), (ii) after the same is prepared and filed with the SEC, one (1) copy of each Registration Statement and any amendment(s) and supplement(s) thereto,
including, without limitation, financial statements and schedules, all documents incorporated therein by reference, if requested by an Investor, and all exhibits, and (iii) upon the effectiveness of each Registration Statement, one
(1) copy of the prospectus included in such Registration Statement and all amendments and supplements thereto, except in cases (ii) and (iii) above if such documents are filed with the SEC through EDGAR and are available to the public
through the EDGAR system promptly after the same is prepared and filed with the SEC. The Company shall reasonably cooperate with Legal Counsel in performing the Company’s obligations pursuant to this Section 3. 

(d) The Company shall promptly furnish to each Investor whose Registrable Securities are included in any Registration Statement, without
charge, to the extent that such documents are not available on the SEC’s EDGAR system, (i) after the same is prepared and filed with the SEC, at least one (1) copy of each Registration Statement and any amendment(s) and supplement(s)
thereto, including, without limitation, financial statements and schedules, all documents incorporated therein by reference, if requested by an Investor, all exhibits and each preliminary prospectus, (ii) upon the effectiveness of each
Registration Statement, ten (10) copies of the prospectus included in such Registration Statement and all amendments and supplements thereto (or such other number of copies as such Investor may reasonably request from time to time), and
(iii) such other documents, including, without limitation, copies of any preliminary or final prospectus, as such Investor may reasonably request from time to time in order to facilitate the disposition of the Registrable Securities owned by
such Investor. 

  
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 (e) The Company shall use its reasonable best efforts to (i) register and qualify, unless an
exemption from registration and qualification applies, the resale by Investors of the Registrable Securities covered by a Registration Statement under such other securities or “blue sky” laws of all applicable jurisdictions in the United
States, (ii) prepare and file in those jurisdictions, such amendments (including, without limitation, post-effective amendments) and supplements to such registrations and qualifications as may be necessary to maintain the effectiveness thereof
during the Registration Period, (iii) take such other actions as may be necessary to maintain such registrations and qualifications in effect at all times during the Registration Period, and (iv) take all other actions reasonably necessary
or advisable to qualify the Registrable Securities for sale in such jurisdictions; provided, however, that the Company shall not be required in connection therewith or as a condition thereto to (x) qualify to do business in any jurisdiction
where it would not otherwise be required to qualify but for this Section 3(e), (y) subject itself to general taxation in any such jurisdiction, or (z) file a general consent to service of process in any such jurisdiction. The Company
shall promptly notify Legal Counsel and each Investor who holds Registrable Securities of the receipt by the Company of any notification with respect to the suspension of the registration or qualification of any of the Registrable Securities for
sale under the securities or “blue sky” laws of any jurisdiction in the United States or its receipt of actual notice of the initiation or threatening of any proceeding for such purpose. 

(f) The Company shall notify Legal Counsel and each Investor in writing of the happening of any event, as promptly as practicable after
becoming aware of such event, as a result of which the prospectus included in a Registration Statement, as then in effect, includes an untrue statement of a material fact or omission to state a material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading (provided that in no event shall such notice contain any material, non-public information regarding the Company or any of its
Subsidiaries), and, subject to Section 3(r), promptly prepare a supplement or amendment to such Registration Statement and such prospectus contained therein to correct such untrue statement or omission and, unless such supplement or amendment
has been filed with the SEC through EDGAR and is available to the public through the EDGAR system promptly after the same is prepared and filed with the SEC, deliver ten (10) copies of such supplement or amendment to Legal Counsel and each
Investor (or such other number of copies as Legal Counsel or such Investor may reasonably request). The Company shall also promptly notify Legal Counsel and each Investor in writing (i) when a prospectus or any prospectus supplement or
post-effective amendment has been filed, when a Registration Statement or any post-effective amendment has become effective (notification of such effectiveness shall be delivered to Legal Counsel and each Investor by facsimile or e-mail on the same
day of such effectiveness and by overnight mail), and when the Company receives written notice from the SEC that a Registration Statement or any post-effective amendment will be reviewed by the SEC, (ii) of any request by the SEC for amendments
or supplements to a Registration Statement or related prospectus or related information, (iii) of the Company’s reasonable determination that a post-effective amendment to a Registration Statement would be appropriate; and (iv) of the
receipt of any request by the SEC or any other federal or state governmental authority for any additional information relating to the Registration Statement or any amendment or supplement thereto or any related prospectus. The Company shall respond
as promptly as practicable to any comments received from the SEC with respect to each Registration Statement or any amendment thereto, but in no event later than ten (10) Business Days after the Company’s receipt of such comments. 

  
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 (g) The Company shall (i) use its reasonable best efforts to prevent the issuance of any
stop order or other suspension of effectiveness of each Registration Statement or the use of any prospectus contained therein, or the suspension of the qualification, or the loss of an exemption from qualification, of any of the Registrable
Securities for sale in any jurisdiction and, if such an order or suspension is issued, to obtain the withdrawal of such order or suspension at the earliest possible moment and (ii) as promptly as reasonably practicable, but in any event within
one (1) Business Day, via facsimile or electronic mail, notify Legal Counsel and each Investor who holds Registrable Securities of the issuance of such order and the resolution thereof or its receipt of actual notice of the initiation or threat
of any proceeding for such purpose. 
 (h) If any Investor may be required under applicable securities law to be described in any
Registration Statement as an underwriter and such Investor consents to so being named an underwriter, at the reasonable request of such Investor, the Company shall furnish to such Investor, on the date of the effectiveness of such Registration
Statement and thereafter from time to time on such dates as an Investor may reasonably request (i) a letter, dated such date, from the Company’s independent certified public accountants in form and substance as is customarily given by
independent certified public accountants to underwriters in an underwritten public offering, addressed to the Investors, and (ii) an opinion, dated as of such date, of counsel representing the Company for purposes of such Registration
Statement, in form, scope and substance as is customarily given in an underwritten public offering, addressed to the Investors. 

(i) If any Investor may be required under applicable securities law to be described in any Registration Statement as an underwriter and
such Investor consents to so being named an underwriter, upon the written request of such Investor, the Company shall make available for inspection by (i) such Investor, (ii) legal counsel for such Investor, and (iii) one
(1) firm of accountants or other agents retained by such Investor (collectively, the “Inspectors”), all pertinent financial and other records, and pertinent corporate documents and properties of the Company (collectively, the
“Records”), as shall be reasonably deemed necessary by each Inspector, and cause the Company’s officers, directors and employees to supply all information which any Inspector may reasonably request; provided, however, each
Inspector shall agree in writing to hold in strict confidence and not to make any disclosure (except to such Investor) or use of any Record or other information which the Company’s board of directors determines in good faith to be confidential,
and of which determination the Inspectors are so notified, unless (1) the disclosure of such Records is necessary to avoid or correct a misstatement or omission in any Registration Statement or is otherwise required under the 1933 Act,
(2) the release of such Records is ordered pursuant to a final, non-appealable subpoena or order from a court or government body of competent jurisdiction, or (3) the information in such Records has been made generally available to the
public other than by disclosure in violation of this Agreement or any other Transaction Document (as defined in the Subscription Agreement). Such Investor agrees that it shall, upon learning that disclosure of such Records is sought in or by a court
or governmental body of competent jurisdiction or through other means, give prompt notice to the Company and allow the Company, at its expense, to undertake appropriate action to prevent disclosure of, or to obtain a protective order for, the
Records deemed confidential. Nothing herein (or in any other confidentiality agreement between the Company and such Investor, if any) shall be deemed to limit any Investor’s ability to sell Registrable Securities in a manner which is otherwise
consistent with applicable laws and regulations. 

  
 11 








 (j) The Company shall hold in confidence and not make any disclosure of information concerning an
Investor provided to the Company unless (i) disclosure of such information is necessary to comply with federal or state securities laws, (ii) the disclosure of such information is necessary to avoid or correct a misstatement or omission in
any Registration Statement or is otherwise required to be disclosed in such Registration Statement pursuant to the 1933 Act, (iii) the release of such information is ordered pursuant to a subpoena or other final, non-appealable order from a
court or governmental body of competent jurisdiction, or (iv) such information has been made generally available to the public other than by disclosure in violation of this Agreement or any other Transaction Document. The Company agrees that it
shall, upon learning that disclosure of such information concerning an Investor is sought in or by a court or governmental body of competent jurisdiction or through other means, give prompt written notice to such Investor and allow such Investor, at
such Investor’s expense, to undertake appropriate action to prevent disclosure of, or to obtain a protective order for, such information. 

(k) Without limiting any obligation of the Company under the Subscription Agreement, the Company shall use its reasonable best efforts
either to (i) cause all of the Registrable Securities covered by each Registration Statement to be listed on each securities exchange on which securities of the same class or series issued by the Company are then listed, if any, if the listing
of such Registrable Securities is then permitted under the rules of such exchange, (ii) secure designation and quotation of all of the Registrable Securities covered by each Registration Statement on the applicable Trading Market, or
(iii) if, despite the Company’s reasonable best efforts to satisfy the preceding clauses (i) or (ii) the Company is unsuccessful in satisfying the preceding clauses (i) or (ii), without limiting the generality of the
foregoing, to use its reasonable best efforts to arrange for at least two market makers to register with the Financial Industry Regulatory Authority (“FINRA”) as such with respect to such Registrable Securities. In addition, the
Company shall cooperate with each Investor and any broker or dealer through which any such Investor proposes to sell its Registrable Securities in effecting a filing with FINRA pursuant to FINRA Rule 5110 as requested by such Investor. The Company
shall pay all fees and expenses in connection with satisfying its obligations under this Section 3(k). 
 (l) The Company shall
cooperate with the Investors who hold Registrable Securities being offered and, to the extent applicable, facilitate the timely preparation and delivery of certificates (not bearing any restrictive legend) representing the Registrable Securities to
be offered pursuant to a Registration Statement and enable such certificates to be in such denominations or amounts (as the case may be) as the Investors may reasonably request from time to time and registered in such names as the Investors may
request. 
 (m) If requested by an Investor, the Company shall, as soon as practicable after receipt of notice from such Investor and
subject to Section 3(r) hereof, (i) incorporate in a prospectus supplement or post-effective amendment such information as an Investor reasonably requests to be included therein relating to the sale and distribution of Registrable
Securities, including, without limitation, information with respect to the number of Registrable Securities being offered or sold, the purchase price being paid therefor and any other terms of the offering of the Registrable Securities to be sold in
such offering; (ii) make all required filings of 

  
 12 








 
such prospectus supplement or post-effective amendment after being notified of the matters to be incorporated in such prospectus supplement or post-effective amendment; and (iii) supplement
or make amendments to any Registration Statement or prospectus contained therein if reasonably requested by an Investor holding any Registrable Securities. 

(n) The Company shall use its reasonable best efforts to cause the Registrable Securities covered by a Registration Statement to be registered
with or approved by such other governmental agencies or authorities as may be necessary to consummate the disposition of such Registrable Securities. 

(o) The Company shall make generally available to its security holders as soon as practical, but not later than ninety (90) days after
the close of the period covered thereby, an earnings statement (in form complying with, and in the manner provided by, the provisions of Rule 158 under the 1933 Act) covering a twelve-month period beginning not later than the first day of the
Company’s fiscal quarter next following the applicable Effective Date of each Registration Statement. 
 (p) The Company shall
otherwise use its reasonable best efforts to comply with all applicable rules and regulations of the SEC in connection with any registration hereunder. 

(q) Within one (1) Business Day after a Registration Statement which covers Registrable Securities is declared effective by the SEC, the
Company shall deliver, and shall cause legal counsel for the Company to deliver, to the transfer agent for such Registrable Securities (with copies to the Investors whose Registrable Securities are included in such Registration Statement)
confirmation that such Registration Statement has been declared effective by the SEC. 
 (r) Notwithstanding anything to the contrary
herein (but subject to the last sentence of this Section 3(r)), at any time after the Effective Date of a particular Registration Statement, (i) the Company may delay the disclosure of material, non-public information concerning the
Company or any of its Subsidiaries the disclosure of which at the time is not, in the good faith opinion of the board of directors of the Company, in the best interest of the Company and, upon the advice of counsel to the Company, otherwise required
and (ii) the Company may suspend the availability of a Registration Statement on Form S-1 if pursuant to applicable law it must file a post-effective amendment to such Registration Statement in connection with the filing of its Annual Report on
Form 10-K or Quarterly Reports on Form 10-Q (each, a “Grace Period”), provided that the Company shall promptly (A) notify the Investors in writing of the existence of material, non-public information giving rise to a Grace
Period (provided that in each such notice the Company shall not disclose the content of such material, non-public information to any of the Investors) and the date on which such Grace Period will begin and (B) notify the investors in writing of
the date on which such Grace Period ends, provided further that (x) no Grace Period shall exceed fifteen (15) consecutive Trading Days and during any three hundred sixty five (365) day period all such Grace Periods shall not exceed an
aggregate of forty-five (45) Trading Days, (y) the first day of any Grace Period must be at least five (5) Trading Days after the last day of any prior Grace Period, and (z) no Grace Period may exist during the sixty
(60) Trading Day period immediately following the Effective Date of such Registration Statement (provided that such sixty (60) Trading Day period shall be extended by the number of Trading Days during such period and any extension thereof
contemplated by this proviso during which such  

  
 13 








 
Registration Statement is not effective or the prospectus contained therein is not available for use) (each, an “Allowable Grace Period”). For purposes of determining the
length of a Grace Period above, such Grace Period shall begin on and include the date the Investors receive the notice referred to in clause (i) above and shall end on and include the later of the date the Investors receive the notice referred
to in clause (ii) above and the date referred to in such notice. The provisions of Section 3(g) hereof shall not be applicable during the period of any Allowable Grace Period. Upon expiration of each Grace Period, the Company shall again
be bound by the first sentence of Section 3(f) with respect to the information giving rise thereto unless such material, non-public information is no longer applicable. Notwithstanding anything to the contrary contained in this
Section 3(r), the Company shall cause its transfer agent to deliver unlegended shares of Common Stock to a transferee of an Investor in accordance with the terms of the Subscription Agreement in connection with any sale of Registrable
Securities made pursuant to an effective and available Registration Statement with respect to which such Investor has entered into a contract for sale, and delivered a copy of the prospectus included as part of the particular Registration Statement
to the extent applicable, prior to such Investor’s receipt of the notice of a Grace Period and for which the Investor has not yet settled. 
  

	4.	Obligations of the Investors. 

 (a) At least five (5) Business Days prior to the first
anticipated filing date of each Registration Statement, the Company shall notify each Investor in writing of the information the Company requires from each such Investor with respect to such Registration Statement. It shall be a condition precedent
to the obligations of the Company to complete the registration pursuant to this Agreement with respect to the Registrable Securities of a particular Investor that such Investor shall furnish to the Company such information regarding itself, the
Registrable Securities held by it and the intended method of disposition of the Registrable Securities held by it, as shall be reasonably required to effect and maintain the effectiveness of the registration of such Registrable Securities and shall
execute such documents in connection with such registration as the Company may reasonably request. 
 (b) Each Investor, by such
Investor’s acceptance of the Registrable Securities, agrees to cooperate with the Company as reasonably requested by the Company in connection with the preparation and filing of each Registration Statement hereunder, unless such Investor has
notified the Company in writing of such Investor’s election to exclude all of such Investor’s Registrable Securities from such Registration Statement. 

(c) Each Investor agrees that, upon receipt of any notice from the Company of the happening of any event of the kind described in
Section 3(g) or the first sentence of 3(f), such Investor will immediately discontinue disposition of Registrable Securities pursuant to any Registration Statement(s) covering such Registrable Securities until such Investor’s receipt of
the copies of the supplemented or amended prospectus contemplated by Section 3(g) or the first sentence of Section 3(f) or receipt of notice that no supplement or amendment is required. Notwithstanding anything to the contrary in this
Section 4(c), the Company shall cause its transfer agent to deliver unlegended shares of Common Stock to a transferee of an Investor in accordance with the terms of the Subscription Agreement in connection with any sale of Registrable
Securities made pursuant to an effective and available Registration Statement with respect to which such Investor has entered into a contract for sale prior to the Investor’s receipt of a notice from the Company of the happening of any event of
the kind described in Section 3(g) or the first sentence of Section 3(f) and for which such Investor has not yet settled. 

  
 14 









	5.	Expenses of Registration. 

 All reasonable expenses, other than underwriting discounts
and commissions, incurred in connection with registrations, filings or qualifications pursuant to Sections 2 and 3, including, without limitation, all registration, listing and qualifications fees, printers and accounting fees, FINRA filing fees (if
any) and fees and disbursements of counsel for the Company shall be paid by the Company. 
  

	6.	Indemnification. 

 (a) In the event any Registrable Securities are included in any
Registration Statement under this Agreement, to the fullest extent permitted by law, the Company will, and hereby does, indemnify, hold harmless and defend each Investor and each of its directors, officers, shareholders, members, partners,
employees, agents, advisors, representatives (and any other Persons with a functionally equivalent role of a Person holding such titles notwithstanding the lack of such title or any other title) and each Person, if any, who controls such Investor
within the meaning of the 1933 Act or the 1934 Act and each of the directors, officers, shareholders, members, partners, employees, agents, advisors, representatives (and any other Persons with a functionally equivalent role of a Person holding such
titles notwithstanding the lack of such title or any other title) of such controlling Persons (each, an “Indemnified Person”), against any losses, obligations, claims, damages, liabilities, contingencies, judgments, fines,
penalties, charges, costs (including, without limitation, court costs, reasonable and documented attorneys’ fees and costs of defense and investigation), amounts paid in settlement or expenses, joint or several, (collectively,
“Claims”) incurred in investigating, preparing or defending any action, claim, suit, inquiry, proceeding, investigation or appeal taken from the foregoing by or before any court or governmental, administrative or other regulatory
agency, body or the SEC, whether pending or threatened, whether or not an indemnified party is or may be a party thereto (“Indemnified Damages”), to which any of them may become subject insofar as such Claims (or actions or
proceedings, whether commenced or threatened, in respect thereof) arise out of or are based upon: (i) any untrue statement or alleged untrue statement of a material fact in a Registration Statement or any post-effective amendment thereto or in
any filing made in connection with the qualification of the offering under the securities or other “blue sky” laws of any jurisdiction in which Registrable Securities are offered (“Blue Sky Filing”), or the omission or
alleged omission to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) any untrue statement or alleged untrue statement of a material fact contained in any preliminary prospectus
if used prior to the effective date of such Registration Statement, or contained in the final prospectus (as amended or supplemented, if the Company files any amendment thereof or supplement thereto with the SEC) or the omission or alleged omission
to state therein any material fact necessary to make the statements made therein, in light of the circumstances under which the statements therein were made, not misleading, or (iii) any violation or alleged violation by the Company of the 1933
Act, the 1934 Act, any other law, including, without limitation, any state securities law, or any rule or regulation thereunder relating to the offer or sale of the Registrable Securities pursuant to a Registration Statement (the matters in the
foregoing clauses (i) through (iii) being, collectively,  

  
 15 








 
“Violations”). Subject to Section 6(c), the Company shall reimburse the Indemnified Persons, promptly as such expenses are incurred and are due and payable, for any
reasonable and documented legal fees or other reasonable expenses incurred by them in connection with investigating or defending any such Claim. Notwithstanding anything to the contrary contained herein, the indemnification agreement contained in
this Section 6(a): (i) shall not apply to a Claim by an Indemnified Person arising out of or based upon a Violation which occurs in reliance upon and in conformity with information furnished in writing to the Company by such Indemnified
Person for such Indemnified Person expressly for use in connection with the preparation of such Registration Statement or any such amendment thereof or supplement thereto and (ii) shall not be available to a particular Investor to the extent
such Claim is based on a failure of such Investor to deliver or to cause to be delivered the prospectus made available by the Company, including, without limitation, a corrected prospectus, if such prospectus or corrected prospectus was timely made
available by the Company pursuant to Section 3(d) and then only if, and to the extent that, following the receipt of the corrected prospectus no grounds for such Claim would have existed; and (iii) shall not apply to amounts paid in
settlement of any Claim if such settlement is effected without the prior written consent of the Company, which consent shall not be unreasonably withheld, conditioned or delayed. Such indemnity shall remain in full force and effect regardless of any
investigation made by or on behalf of the Indemnified Person and shall survive the transfer of any of the Registrable Securities by any of the Investors pursuant to Section 9. 

(b) In connection with any Registration Statement in which an Investor is participating, each such Investor agrees to severally and not
jointly indemnify, hold harmless and defend, to the same extent and in the same manner as is set forth in Section 6(a), the Company, each of its directors, each of its officers who signs the Registration Statement and each Person, if any, who
controls the Company within the meaning of the 1933 Act or the 1934 Act (each, an “Indemnified Party”), against any Claim or Indemnified Damages to which any of them may become subject, under the 1933 Act, the 1934 Act or otherwise,
insofar as such Claim or Indemnified Damages arise out of or are based upon any Violation, in each case, to the extent, and only to the extent, that such Violation occurs in reliance upon and in conformity with written information furnished to the
Company by such Investor expressly for use in connection with such Registration Statement; and, subject to Section 6(c) and the below provisos in this Section 6(b), such Investor shall reimburse the Indemnified Party for any legal or other
expenses reasonably incurred by such Indemnified Party in connection with investigating or defending any such Claim; provided, however, that the indemnity agreement contained in this Section 6(b) and the agreement with respect to contribution
contained in Section 7 shall not apply to amounts paid in settlement of any Claim if such settlement is effected without the prior written consent of such Investor, which consent shall not be unreasonably withheld or delayed, provided further
that such Investor shall be liable under this Section 6(b) for only that amount of a Claim or Indemnified Damages as does not exceed the net proceeds to such Investor as a result of the applicable sale of Registrable Securities pursuant to such
Registration Statement. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of such Indemnified Party and shall survive the transfer of any of the Registrable Securities by any of the Investors
pursuant to Section 9.  
 (c) Promptly after receipt by an Indemnified Person or Indemnified Party (as the case may be) under
this Section 6 of notice of the commencement of any action or proceeding 

  
 16 








 
(including, without limitation, any governmental action or proceeding) involving a Claim, such Indemnified Person or Indemnified Party (as the case may be) shall, if a Claim in respect thereof is
to be made against any indemnifying party under this Section 6, deliver to the indemnifying party a written notice of the commencement thereof, and the indemnifying party shall have the right to participate in, and, to the extent the
indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume control of the defense thereof with counsel mutually satisfactory to the indemnifying party and the Indemnified Person or the Indemnified Party (as
the case may be); provided, however, an Indemnified Person or Indemnified Party (as the case may be) shall have the right to retain its own counsel with the fees and expenses of such counsel to be paid by the indemnifying party if: (i) the
indemnifying party has agreed in writing to pay such fees and expenses; (ii) the indemnifying party shall have failed promptly to assume the defense of such Claim and to employ counsel reasonably satisfactory to such Indemnified Person or
Indemnified Party (as the case may be) in any such Claim; or (iii) the named parties to any such Claim (including, without limitation, any impleaded parties) include both such Indemnified Person or Indemnified Party (as the case may be) and the
indemnifying party, and such Indemnified Person or such Indemnified Party (as the case may be) shall have been advised by counsel that a conflict of interest is likely to exist if the same counsel were to represent such Indemnified Person or such
Indemnified Party and the indemnifying party (in which case, if such Indemnified Person or such Indemnified Party (as the case may be) notifies the indemnifying party in writing that it elects to employ separate counsel at the expense of the
indemnifying party, then the indemnifying party shall not have the right to assume the defense thereof and such counsel shall be at the expense of the indemnifying party), provided further that in the case of clause (iii) above the indemnifying
party shall not be responsible for the reasonable fees and expenses of more than one (1) separate legal counsel for such Indemnified Person or Indemnified Party (as the case may be). The Indemnified Party or Indemnified Person (as the case may
be) shall reasonably cooperate with the indemnifying party in connection with any negotiation or defense of any such action or Claim by the indemnifying party and shall furnish to the indemnifying party all information reasonably available to the
Indemnified Party or Indemnified Person (as the case may be) which relates to such action or Claim. The indemnifying party shall keep the Indemnified Party or Indemnified Person (as the case may be) reasonably apprised at all times as to the status
of the defense or any settlement negotiations with respect thereto. No indemnifying party shall be liable for any settlement of any action, claim or proceeding effected without its prior written consent; provided, however, the indemnifying party
shall not unreasonably withhold, delay or condition its consent. No indemnifying party shall, without the prior written consent of the Indemnified Party or Indemnified Person (as the case may be), consent to the entry of any judgment or enter into
any settlement or other compromise which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party or Indemnified Person (as the case may be) of a release from all liability in respect to
such Claim or litigation, and such settlement shall not include any admission as to fault on the part of the Indemnified Party or Indemnified Person (as the case may be). Following indemnification as provided for hereunder, the indemnifying party
shall be subrogated to all rights of the Indemnified Party or Indemnified Person (as the case may be) with respect to all third parties, firms or corporations relating to the matter for which indemnification has been made. The failure to deliver
written notice to the indemnifying party within a reasonable time of the commencement of any such action shall not relieve such indemnifying party of any liability to the Indemnified Person or Indemnified Party (as the case may be) under this
Section 6, except to the extent that the indemnifying party is materially and adversely prejudiced in its ability to defend such action. 

  
 17 








 (d) No Person involved in the sale of Registrable Securities who is guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) in connection with such sale shall be entitled to indemnification from any Person involved in such sale of Registrable Securities who is not guilty of fraudulent
misrepresentation. 
 (e) The indemnification required by this Section 6 shall be made by periodic payments of the amount thereof
during the course of the investigation or defense, as and when bills are received or Indemnified Damages are incurred. 
 (f) The indemnity
and contribution agreements contained herein shall be in addition to (i) any cause of action or similar right of the Indemnified Party or Indemnified Person against the indemnifying party or others, and (ii) any liabilities the
indemnifying party may be subject to pursuant to the law. 
  

	7.	Contribution. 

 To the extent any indemnification by an indemnifying party is prohibited
or limited by law, the indemnifying party agrees to make the maximum contribution with respect to any amounts for which it would otherwise be liable under Section 6 to the fullest extent permitted by law; provided, however: (i) no
contribution shall be made under circumstances where the maker would not have been liable for indemnification under the fault standards set forth in Section 6 of this Agreement, (ii) no Person involved in the sale of Registrable Securities
which Person is guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) in connection with such sale shall be entitled to contribution from any Person involved in such sale of Registrable Securities who was
not guilty of fraudulent misrepresentation; and (iii) contribution by any seller of Registrable Securities shall be limited in amount to the amount of net proceeds received by such seller from the applicable sale of such Registrable Securities
pursuant to such Registration Statement. Notwithstanding the provisions of this Section 7, no Investor shall be required to contribute, in the aggregate, any amount in excess of the amount by which the net proceeds actually received by such
Investor from the applicable sale of the Registrable Securities subject to the Claim exceeds the amount of any damages that such Investor has otherwise been required to pay, or would otherwise be required to pay under Section 6(b), by reason of
such untrue or alleged untrue statement or omission or alleged omission. 
  

	8.	Reports Under the 1934 Act. 

 With a view to making available to the Investors the
benefits of Rule 144, the Company agrees to: 
 (a) make and keep public information available, as those terms are understood and defined in
Rule 144; 
 (b) file with the SEC in a timely manner all reports and other documents required of the Company under the 1933 Act and the
1934 Act so long as the Company remains subject to 

  
 18 








 
such requirements (it being understood and agreed that nothing herein shall limit any obligations of the Company under the Subscription Agreement) and the filing of such reports and other
documents is required for the applicable provisions of Rule 144; and 
 (c) furnish to each Investor, so long as such Investor owns
Registrable Securities, promptly upon request, (i) a written statement by the Company, if true, that it has complied with the reporting, submission and posting requirements of Rule 144 and the 1934 Act, (ii) a copy of the most recent
annual or quarterly report of the Company and such other reports and documents so filed by the Company with the SEC if such reports are not publicly available via EDGAR, and (iii) such other information as may be reasonably requested to permit
the Investors to sell such securities pursuant to Rule 144 without registration. 
  

	9.	Assignment of Registration Rights. 

 All or any portion of the rights under this
Agreement shall be automatically assignable by each Investor to any transferee or assignee (as the case may be) of all or any portion of such Investor’s Registrable Securities if: (i) such Investor agrees in writing with such transferee or
assignee (as the case may be) to assign all or any portion of such rights, and a copy of such agreement is furnished to the Company within a reasonable time after such transfer or assignment (as the case may be); (ii) the Company is, within a
reasonable time after such transfer or assignment (as the case may be), furnished with written notice of (a) the name and address of such transferee or assignee (as the case may be), and (b) the securities with respect to which such
registration rights are being transferred or assigned (as the case may be); (iii) immediately following such transfer or assignment (as the case may be) the further disposition of such securities by such transferee or assignee (as the case may
be) is restricted under the 1933 Act or applicable state securities laws if so required; (iv) at or before the time the Company receives the written notice contemplated by clause (ii) of this sentence, such transferee or assignee (as the
case may be) agrees in writing with the Company to be bound by all of the provisions contained herein; (v) such transfer or assignment (as the case may be) shall have been made in accordance with the applicable requirements of the Subscription
Agreement; and (vi) such transfer or assignment (as the case may be) shall have been conducted in accordance with all applicable federal and state securities laws. 
  

	10.	Amendment of Registration Rights. 

 Provisions of this Agreement may be amended only with
the written consent of the Company and the Required Holders. Any amendment effected in accordance with this Section 10 shall be binding upon each Investor and the Company, provided that no such amendment shall be effective to the extent that it
(1) applies to less than all of the holders of the holders of Registrable Securities, (2) imposes any obligation or liability on any Investor without such Investor’s prior written consent (which may be granted or withheld in such
Investor’s sole discretion), or (3) applies retroactively. No waiver shall be effective unless it is in writing and signed by an authorized representative of the waiving party. No consideration shall be offered or paid to any Person to
amend or consent to a waiver or modification of any provision of this Agreement unless the same consideration also is offered to all of the parties to this Agreement. 

  
 19 









	11.	Miscellaneous. 

 (a) Except for registration rights granted in connection with an Exempt
Financing, during the term of this Agreement, the Company shall not grant to any third party any registration rights that are senior to the registration rights provided to the Investors pursuant to this Agreement. 

(b) Solely for purposes of this Agreement, a Person is deemed to be a holder of Registrable Securities whenever such Person owns, or is deemed
to own, of record such Registrable Securities. If the Company receives conflicting instructions, notices or elections from two or more Persons with respect to the same Registrable Securities, the Company shall act upon the basis of instructions,
notice or election received from such record owner of such Registrable Securities. 
 (c) Any notices, consents, waivers or other
communications required or permitted to be given under the terms of this Agreement must be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when sent by facsimile
(provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending party); (iii) with respect to Section 3(c), by electronic mail (provided confirmation of transmission is electronically
generated and kept on file by the sending party); or (iv) one (1) Business Day after deposit with a nationally recognized overnight delivery service with next day delivery specified, in each case, properly addressed to the party to receive
the same. The addresses and facsimile numbers for such communications shall be: 
 If to the Company: 

Conkwest, Inc. 
 The Plastino
Building 
 2533 South Coast Highway 101, Suite 210 

Cardiff-by-the-Sea, CA 92007 

Telephone: (858) 633-0300 

Facsimile:   (858) 380-1999 

Attention:   Barry J. Simon, M.D. 

                    Chief Executive
Officer 
 With a copy (for informational purposes only) to: 

Greenberg Traurig, LLP 
 The
MetLife Building 
 200 Park Avenue 

New York, NY 10166 
 Telephone:
(212) 801-9362 
 Facsimile:   (212) 805-9362 

Attention:   Anthony J. Marsico, Esq. 

If to the Transfer Agent: 

[            ] 

[            ] 

  
 20 








 [            ] 

Telephone: (            ) - 

Facsimile: (            ) - 

Attention: [            ] 

If to Legal Counsel: 
 Paul
Hastings LLP 
 1117 S. California Avenue 

Palo Alto, CA 94304 
 Telephone:
(650) 320-1804 
 Facsimile:   (650) 320-1904 

Attention:   Jeffrey T. Hartlin, Esq. 

If to a Purchaser, to its address and facsimile number set forth on the signature page of such Purchaser attached to the Subscription Agreement, with copies
to any of such Purchaser’s representatives as set forth on such signature page, or to such other address and/or facsimile number and/or to the attention of such other Person as the recipient party has specified by written notice given to each
other party five (5) days prior to the effectiveness of such change. Written confirmation of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically generated by
the sender’s facsimile machine or electronic mail transmission containing the time, date, recipient facsimile number or electronic mail address and an image of the first page of such transmission, or (C) provided by a courier or overnight
courier service shall be rebuttable evidence of personal service, receipt by facsimile, receipt by electronic mail or receipt from a nationally recognized overnight delivery service in accordance with clause (i), (ii), (iii) or (iv) above,
respectively. 
 (d) Failure of any party to exercise any right or remedy under this Agreement or otherwise, or delay by a party in
exercising such right or remedy, shall not operate as a waiver thereof. The Company and each Investor acknowledge and agree that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached. It is accordingly agreed that each party hereto shall be entitled to an injunction or injunctions to prevent or cure breaches of the provisions of this Agreement by any other party
hereto and to enforce specifically the terms and provisions hereof (without the necessity of showing economic loss and without any bond or other security being required), this being in addition to any other remedy to which any party may be entitled
by law or equity. 
 (e) All questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be
governed by the internal laws of the State of California, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of California or any other jurisdictions) that would cause the application of the laws of
any jurisdictions other than the State of California. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the City of San Diego, State of California, for the adjudication of any dispute
hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees 

  
 21 








 
not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an
inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing a copy
thereof to such party at the address for such notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way
any right to serve process in any manner permitted by law. If any provision of this Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the remainder
of this Agreement in that jurisdiction or the validity or enforceability of any provision of this Agreement in any other jurisdiction. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE TO, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE
ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY. 

(f) This Agreement, the other Transaction Documents, the schedules and exhibits attached hereto and thereto and the instruments referenced
herein and therein constitute the entire agreement among the parties hereto and thereto solely with respect to the subject matter hereof and thereof. There are no restrictions, promises, warranties or undertakings, other than those set forth or
referred to herein and therein. This Agreement, the other Transaction Documents, the schedules and exhibits attached hereto and thereto and the instruments referenced herein and therein supersede all prior agreements, understandings, discussions and
representations, oral or written, among the parties hereto solely with respect to the subject matter hereof and thereof; provided, however, nothing contained in this Agreement or any other Transaction Document shall (or shall be deemed to)
(i) have any effect on any agreements any Investor has entered into with the Company or any of its Subsidiaries prior to the date hereof with respect to any prior investment made by such Investor in the Company, (ii) waive, alter, modify
or amend in any respect any obligations of the Company or any of its Subsidiaries or any rights of or benefits to any Investor or any other Person in any agreement entered into prior to the date hereof between or among the Company and/or any of its
Subsidiaries and any Investor and all such agreements shall continue in full force and effect, or (iii) limit any obligations of the Company under any of the other Transaction Documents. 

(g) Subject to compliance with Section 9 (if applicable), this Agreement shall inure to the benefit of and be binding upon the permitted
successors and assigns of each of the parties hereto. This Agreement is not for the benefit of, nor may any provision hereof be enforced by, any Person, other than the parties hereto, their respective permitted successors and assigns and the Persons
referred to in Sections 6 and 7 hereof. 
 (h) The headings in this Agreement are for convenience of reference only and shall not limit or
otherwise affect the meaning hereof. Unless the context clearly indicates otherwise, each pronoun herein shall be deemed to include the masculine, feminine, neuter, singular and plural forms thereof. The terms “including,”
“includes,” “include” and words of like import shall be construed broadly as if followed by the words “without limitation.” The terms “herein,” “hereunder,” “hereof” and words of like
import refer to this entire Agreement instead of just the provision in which they are found. 

  
 22 








 (i) This Agreement may be executed in two or more identical counterparts, all of which shall be
considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party. In the event that any signature is delivered by facsimile transmission or by an e-mail which contains
a portable document format (.pdf) file of an executed signature page, such signature page shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such
signature page were an original thereof. 
 (j) Each party shall do and perform, or cause to be done and performed, all such further acts
and things, and shall execute and deliver all such other agreements, certificates, instruments and documents as any other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the
consummation of the transactions contemplated hereby. 
 (k) The language used in this Agreement will be deemed to be the language chosen by
the parties to express their mutual intent and no rules of strict construction will be applied against any party. Notwithstanding anything to the contrary set forth in Section 10, terms used in this Agreement but defined in the other
Transaction Documents shall have the meanings ascribed to such terms on the Initial Closing Date in such other Transaction Documents unless otherwise consented to in writing by each Investor. 

(l) All consents and other determinations required to be made by the Investors pursuant to this Agreement shall be made, unless otherwise
specified in this Agreement, by the Required Holders. 
 (m) The obligations of each Investor under this Agreement and the other Transaction
Documents are several and not joint with the obligations of any other Investor, and no Investor shall be responsible in any way for the performance of the obligations of any other Investor under this Agreement or any other Transaction Document.
Nothing contained herein or in any other Transaction Document, and no action taken by any Investor pursuant hereto or thereto, shall be deemed to constitute the Investors as a partnership, an association, a joint venture or any other kind of entity,
or create a presumption that the Investors are in any way acting in concert or as a group with respect to such obligations or the transactions contemplated by the Transaction Documents, and the Company acknowledges that the Investors are not acting
in concert or as a group, and the Company shall not assert any such claim, with respect to such obligations or the transactions contemplated by this Agreement or any of the other Transaction Documents. Subject to the provisions on amendment set
forth in Section 10, each Investor shall be entitled to independently protect and enforce its rights (including, without limitation, the rights arising out of this Agreement or out of any other Transaction Documents), and it shall not be
necessary for any other Investor to be joined as an additional party in any proceeding for such purpose. The use of a single agreement with respect to the obligations of the Company contained herein was solely in the control of the Company, not the
action or decision of any Investor, and was done solely for the convenience of the Company and not because it was required or requested to do so by any Investor. It is expressly understood and agreed that each provision contained in this Agreement
and in each other Transaction Document is between the Company and an Investor, solely, and not between the Company and the Investors collectively and not between and among Investors. 

  
 23 








 [Signature Pages Follow] 

  
 24 








 IN WITNESS WHEREOF, Purchaser and the Company have caused their respective signature page
to this Registration Rights Agreement to be duly executed as of the date first written above. 
  

			
	COMPANY:
	
	CONKWEST, INC.
		
	By:	 	  

		 	 Name:
 Title:



 [Signature Page to Registration Rights Agreement] 







 IN WITNESS WHEREOF, each Purchaser and the Company have caused their respective signature
page to this Registration Rights Agreement to be duly executed as of the date first written above. 
  

			
	PURCHASERS:
	
	SORRENTO THERAPEUTICS, INC.
		
	By:	 	  

		 	 Name:
 Title:



 [Signature Page to Registration Rights Agreement] 







 IN WITNESS WHEREOF, each Purchaser and the Company have caused their respective signature
page to this Registration Rights Agreement to be duly executed as of the date first written above. 
  

			
	[OTHER PURCHASER]
		
	By:	 	  

		 	 Name:
 Title:



 [Signature Page to Registration Rights Agreement] 







 EXHIBIT A 

SELLING STOCKHOLDERS 
 The
shares of common stock being offered by the selling stockholders are those previously issued to the selling stockholders. For additional information regarding the issuance of common stock, see “Private Placement of Securities” above. We
are registering the shares of common stock in order to permit the selling stockholders to offer the shares for resale from time to time. Except for the ownership of the common stock issued pursuant to the Subscription Agreement or as otherwise
provided in the footnotes to the table below, the selling stockholders have not had any material relationship with us within the past three years. 

The table below lists the selling stockholders and other information regarding the beneficial ownership (as determined under
Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder) of the shares of common stock held by each of the selling stockholders and the nature of any position, office or other material
relationship, if any, which the selling stockholder has had, within the past three years, with us or with any of our predecessors or affiliates. The second column lists the number of shares of common stock beneficially owned by the selling
stockholders, based on their respective ownership of shares of common stock, as of [—], 20[    ] 

The third column lists the shares of common stock being offered by this prospectus by the selling stockholders. 

In accordance with the terms of a registration rights agreement with the holders of the common stock, this prospectus generally covers the
resale of the number of shares of common stock issued in connection with the Subscription Agreement as of the trading day immediately preceding the date this registration statement was initially filed with the SEC. The number of shares that will
actually be issued may be more or less than the number of shares being offered by this prospectus. The fourth column assumes the sale of all of the shares offered by the selling stockholders pursuant to this prospectus. 

The selling stockholders may sell all, some or none of their shares in this offering. See “Plan of Distribution.” 

  
 A-1 









							
	 Name of Selling Stockholder
	  	Number of Shares of
Common Stock Owned
Prior to Offering	  	Maximum Number of
Shares of Common Stock
to be Sold Pursuant to this
Prospectus	  	Number of Shares of
Common Stock Owned
After Offering
		  		  		  	
		  		  		  	
		  		  		  	
		  		  		  	
		  		  		  	


  
 A-2 








 PLAN OF DISTRIBUTION 

We are registering the shares of common stock previously issued to permit the resale of these shares of common stock by the holders of the
common stock from time to time after the date of this prospectus. We will not receive any of the proceeds from the sale by the selling stockholders of the shares of common stock. We will bear all fees and expenses incident to our obligation to
register the shares of common stock. 
 The selling stockholders may sell all or a portion of the shares of common stock held by them and
offered hereby from time to time directly or through one or more underwriters, broker-dealers or agents. If the shares of common stock are sold through underwriters or broker-dealers, the selling stockholders will be responsible for underwriting
discounts or commissions or agent’s commissions. The shares of common stock may be sold in one or more transactions at fixed prices, at prevailing market prices at the time of the sale, at varying prices determined at the time of sale or at
negotiated prices. These sales may be effected in transactions, which may involve crosses or block transactions, pursuant to one or more of the following methods: 
  

	 	•	 	on any national securities exchange or quotation service on which the securities may be listed or quoted at the time of sale; 

  

	 	•	 	in the over-the-counter market; 

  

	 	•	 	in transactions otherwise than on these exchanges or systems or in the over-the-counter market; 

  

	 	•	 	through the writing or settlement of options, whether such options are listed on an options exchange or otherwise; 

  

	 	•	 	ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; 

  

	 	•	 	block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to facilitate the transaction; 


 

	 	•	 	purchases by a broker-dealer as principal and resale by the broker-dealer for its account; 

  

	 	•	 	an exchange distribution in accordance with the rules of the applicable exchange; 

  

	 	•	 	privately negotiated transactions; 

  

	 	•	 	short sales made after the date the Registration Statement is declared effective by the SEC; 

  

	 	•	 	sales pursuant to Rule 144; 

  

	 	•	 	agreements between broker-dealers and the selling securityholders to sell a specified number of such shares at a stipulated price per share; 


  
 A-3 









	 	•	 	a combination of any such methods of sale; and 

  

	 	•	 	any other method permitted pursuant to applicable law. 

 The selling stockholders may also sell
shares of common stock under Rule 144 promulgated under the Securities Act of 1933, as amended, if available, rather than under this prospectus. In addition, the selling stockholders may transfer the shares of common stock by other means not
described in this prospectus. If the selling stockholders effect such transactions by selling shares of common stock to or through underwriters, broker-dealers or agents, such underwriters, broker-dealers or agents may receive commissions in the
form of discounts, concessions or commissions from the selling stockholders or commissions from purchasers of the shares of common stock for whom they may act as agent or to whom they may sell as principal (which discounts, concessions or
commissions as to particular underwriters, broker-dealers or agents may be in excess of those customary in the types of transactions involved). In connection with sales of the shares of common stock or otherwise, the selling stockholders may enter
into hedging transactions with broker-dealers, which may in turn engage in short sales of the shares of common stock in the course of hedging in positions they assume. The selling stockholders may also sell shares of common stock short and deliver
shares of common stock covered by this prospectus to close out short positions and to return borrowed shares in connection with such short sales. The selling stockholders may also loan or pledge shares of common stock to broker-dealers that in turn
may sell such shares. 
 The selling stockholders may pledge or grant a security interest in some or all of the shares of common stock owned
by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of common stock from time to time pursuant to this prospectus or any amendment to this prospectus under Rule
424(b)(3) or other applicable provision of the Securities Act amending, if necessary, the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling
stockholders also may transfer and donate the shares of common stock in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus. 

To the extent required by the Securities Act and the rules and regulations thereunder, the selling stockholders and any broker-dealer
participating in the distribution of the shares of common stock may be deemed to be “underwriters” within the meaning of the Securities Act, and any commission paid, or any discounts or concessions allowed to, any such broker-dealer may be
deemed to be underwriting commissions or discounts under the Securities Act. At the time a particular offering of the shares of common stock is made, a prospectus supplement, if required, will be distributed, which will set forth the aggregate
amount of shares of common stock being offered and the terms of the offering, including the name or names of any broker-dealers or agents, any discounts, commissions and other terms constituting compensation from the selling stockholders and any
discounts, commissions or concessions allowed or re-allowed or paid to broker-dealers. 
 Under the securities laws of some states, the
shares of common stock may be sold in such states only through registered or licensed brokers or dealers. In addition, in some states the 

  
 A-4 








 
shares of common stock may not be sold unless such shares have been registered or qualified for sale in such state or an exemption from registration or qualification is available and is complied
with. 
 There can be no assurance that any selling stockholder will sell any or all of the shares of common stock registered pursuant to
the registration statement of which this prospectus forms a part. 
 The selling stockholders and any other person participating in such
distribution will be subject to applicable provisions of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder, including, without limitation, to the extent applicable, Regulation M of the Exchange Act, which may
limit the timing of purchases and sales of any of the shares of common stock by the selling stockholders and any other participating person. To the extent applicable, Regulation M may also restrict the ability of any person engaged in the
distribution of the shares of common stock to engage in market-making activities with respect to the shares of common stock. All of the foregoing may affect the marketability of the shares of common stock and the ability of any person or entity to
engage in market-making activities with respect to the shares of common stock. 
 We will pay all expenses of the registration of the shares
of common stock pursuant to the registration rights agreement, estimated to be $[—] in total, including, without limitation, Securities and Exchange Commission filing fees and expenses of
compliance with state securities or “blue sky” laws; provided, however, a selling stockholder will pay all underwriting discounts and selling commissions, if any. We will indemnify the selling stockholders against liabilities, including
some liabilities under the Securities Act in accordance with the registration rights agreements or the selling stockholders will be entitled to contribution. We may be indemnified by the selling stockholders against civil liabilities, including
liabilities under the Securities Act that may arise from any written information furnished to us by the selling stockholder specifically for use in this prospectus, in accordance with the related registration rights agreements or we may be entitled
to contribution. 
 Once sold under the registration statement, of which this prospectus forms a part, the shares of common stock will be
freely tradable in the hands of persons other than our affiliates. 

  
 A-5