Document:

Exhibit 4.3

 

Exhibit 4.3

 

THIS WARRANT AND THE UNDERLYING SECURITIES
HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS OF
ANY STATE. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED UNDER
THE ACT AND APPLICABLE STATE SECURITIES LAWS IN ACCORDANCE WITH APPLICABLE REGISTRATION REQUIREMENTS OR AN EXEMPTION THEREFROM.
THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE, TRANSFER,
PLEDGE OR HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS. This
warrant must be surrendered to the coMPANY or its transfer agent as a condition precedent to the sale, transfer, pledge or hypothecation
of any interest in any of the securities represented hereby.

 

WARRANT TO PURCHASE SHARES OF CAPITAL STOCK

OF

Q THERAPEUTICS, INC.

 

Dated as of August 30, 2011

Void after the date specified in Section
8

 

	 	
        Warrant to Purchase

        Shares of Capital Stock

        (as provided below)

 

THIS CERTIFIES THAT, for
value received, ________________ or his registered assigns (the “Holder”), is entitled, subject to the provisions
and upon the terms and conditions set forth herein, to purchase from Q THERAPEUTICS, INC., a Delaware corporation (the “Company”),
Shares (as defined below) in the amounts, at such times and at the price per share set forth in Section 1. The term “Warrant”
as used herein shall include this Warrant and any warrants delivered in substitution or exchange therefor as provided herein. This
Warrant is issued in connection with the transactions described in the Note and Securities Purchase Agreement, dated as of August
30, 2011, by and between the Company and the parties thereto (the “Purchase Agreement”), pursuant to which the
original Holder was issued a convertible promissory note (the “Note”) in the principal amount set forth in the
Purchase Agreement.

 

The following is a statement
of the rights of the Holder and the conditions to which this Warrant is subject, and to which Holder, by acceptance of this Warrant,
agrees:

 

1.Number
and Price of Shares; Exercise Period.

 

(a)Definition
of Shares. “Shares” shall mean the class and series of capital stock issued by the Company to
investors in the first Qualified Financing (as defined below) that occurs prior to the expiration of this Warrant. If no Qualified
Financing occurs prior to the earlier of (i) the date of exercise of this Warrant or (ii) the expiration of this Warrant, “Shares”
shall mean shares of the Company’s Series B Preferred Stock. A “Qualified Financing” is a transaction
or series of related transactions pursuant to which the Company issues and sells shares of its capital stock for aggregate gross
proceeds of at least $3,000,000 (not including any conversion or cancellation of indebtedness in consideration for the issuance
of such capital stock, unless allowed by investors in the Qualified Financing) with the principal purpose of raising capital.

 

    	 

    	 

    

 

(b)Number of Shares.
Subject to any previous exercise of the Warrant, the Holder shall have the right to purchase up to the number of Shares that equals
the quotient obtained by dividing (x) the Warrant Coverage Amount (as defined below) by (y) the Exercise Price (as defined below),
prior to (or in connection with) the expiration of this Warrant as provided in Section 8.

 

(c)Warrant
Coverage Amount. The Warrant Coverage Amount shall be equal to one hundred percent (100%) of the original principal amount
of the Note.

 

(d)Exercise
Price. The exercise price shall be equal to lesser of (a) the price per share of the Shares issued in a Qualified Financing
or (b) the Fair Market Value (“FMV”); provided, however, that if no Qualified Financing has occurred on or prior
to the date of exercise of this Warrant or the expiration of this Warrant, the exercise price for the Shares subject to this Warrant
shall be the FMV. As used herein. FMV shall mean $22.4 million divided by the number of fully diluted (including all common stock,
preferred stock, warrants and options) share equivalents outstanding on the date of issuance of this Warrant (the “Exercise
Price”).

 

(e)Exercise
Period. This Warrant shall be exercisable, in whole or in part, at any time prior to the expiration of this Warrant as
set forth in Section 8.

 

2.Exercise
of the Warrant.

 

(a)Exercise.
The purchase rights represented by this Warrant may be exercised at the election of the Holder, in whole or in part in accordance
with Section 1, by:

 

(i)the tender
to the Company at its principal office (or such other office or agency as the Company may designate) of a notice of exercise in
the form of Exhibit A (the “Notice of Exercise”), duly completed and executed by or on behalf
of the Holder, together with the surrender of this Warrant; and

 

(ii)the payment
to the Company of an amount equal to (x) the Exercise Price multiplied by (y) the number of Shares being purchased, by wire transfer
or certified, cashier’s or other check acceptable to the Company and payable to the order of the Company, or a net exercise
election as referenced below.

 

(b)Net Issue
Exercise. The Holder may elect to receive a number of Shares equal to the value of this Warrant (or of any portion of this
Warrant being canceled) by surrender of this Warrant at the principal office of the Company (or such other office or agency as
the Company may designate) together with a properly completed and executed Notice of Exercise reflecting such election, in which
event the Company shall issue to the Holder that number of Shares computed using the following formula:

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	X	=	Y (A – B)
	A

Where:

 

	X	=	The number of Shares to be issued to the Holder
	 	 	 
	Y	=	The number of Shares purchasable under this Warrant or, if only a portion of the Warrant is being exercised, the portion of the Warrant being canceled (at the date of such calculation)
	 	 	 
	A	=	The fair market value of one Share (at the date of such calculation)
	 	 	 
	B	=	The Exercise Price (as adjusted to the date of such calculation)

 

For purposes of the calculation
above, the fair market value of one Share shall be determined by the Board of Directors of the Company, acting in good faith; provided,
however, that:

 

(i)where a
public market exists for the Company’s common stock at the time of such exercise, the fair market value per Share shall be
the product of (x) the average of the closing bid and asked prices of the common stock or the closing price quoted on the national
securities exchange on which the common stock is listed as published in the Wall Street Journal, as applicable, for the
ten (10) trading day period ending five (5) trading days prior to the date of determination of fair market value and (y) the number
of shares of common stock into which each Share is convertible at the time of such exercise, as applicable; and

 

(ii)if the
Warrant is exercised in connection with the Company’s initial public offering of common stock, the fair market value per
Share shall be the product of (x) the per share offering price to the public of the Company’s initial public offering and
(y) the number of shares of common stock into which each Share is convertible at the time of such exercise, as applicable.

 

(c)Stock
Certificates. The rights under this Warrant shall be deemed to have been exercised and the Shares issuable upon such exercise
shall be deemed to have been issued immediately prior to the close of business on the date this Warrant is exercised in accordance
with its terms, and the person entitled to receive the Shares issuable upon such exercise shall be treated for all purposes as
the holder of record of such Shares as of the close of business on such date. As promptly as reasonably practicable on or after
such date, and in any event within thirty (30) days thereafter, the Company shall issue and deliver to the person or persons entitled
to receive the same a certificate or certificates for that number of shares issuable upon such exercise. In the event that the
rights under this Warrant are exercised in part and have not expired, the Company shall execute and deliver a new Warrant reflecting
the number of Shares that remain subject to this Warrant.

 

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(d)No Fractional
Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of the
rights under this Warrant. In lieu of such fractional share to which the Holder would otherwise be entitled, the Company shall
make a cash payment equal to the Exercise Price multiplied by such fraction.

 

(e)Conditional
Exercise. The Holder may exercise this Warrant conditioned upon (and effective immediately prior to) consummation of any
transaction that would cause the expiration of this Warrant pursuant to Section 8 by so indicating in the notice of exercise.

 

(f)Reservation
of Stock. As soon as reasonably practicable after the determination of the number, type, class and series of capital stock
of the Company issuable upon exercise of this Warrant, the Company shall thereafter reserve and keep available from its authorized
and unissued shares of such capital stock for the purpose of effecting the exercise of this Warrant such number of shares (and
shares of common stock for issuance on conversion of such shares) as shall be sufficient to effect the exercise of the rights under
this Warrant; and if at any time the number of authorized but unissued shares of capital stock (and shares of common stock for
issuance on conversion of such shares) shall not be sufficient for purposes of the exercise of this Warrant in accordance with
its terms and the conversion of the Shares, without limitation of such other remedies as may be available to the Holder, the Company
will use reasonable efforts to take such corporate action as may be necessary to increase its authorized and unissued shares of
such capital stock (and shares of common stock for issuance on conversion of such shares) to a number of shares as shall be sufficient
for such purposes.

 

(g)Automatic
Exercise. Notwithstanding the foregoing, if the Holder fails to exercise this Warrant prior to its expiration for any reason,
the Company shall automatically exercise this Warrant, immediately prior to its expiration, on behalf of the Holder pursuant to
the net issuance exercise procedures as listed in paragraph 2(b) of this Warrant, and issue the indicated number of shares of Common
Stock and deliver the shares to the Holder.

 

3.Replacement
of the Warrant. Subject to the receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of this Warrant and, in the case of loss, theft or destruction, on delivery of an indemnity agreement reasonably satisfactory
in form and substance to the Company or, in the case of mutilation, on surrender and cancellation of this Warrant, the Company
at the expense of the Holder shall execute and deliver, in lieu of this Warrant, a new warrant of like tenor and amount.

 

4.Transfer
of the Warrant.

 

(a)Warrant
Register. The Company shall maintain a register (the “Warrant Register”) containing the name and address
of the Holder or Holders. Until this Warrant is transferred on the Warrant Register in accordance herewith, the Company may treat
the Holder as shown on the Warrant Register as the absolute owner of this Warrant for all purposes, notwithstanding any notice
to the contrary. Any Holder of this Warrant (or of any portion of this Warrant) may change its address as shown on the Warrant
Register by written notice to the Company requesting a change.

 

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(b)Warrant
Agent. The Company may appoint an agent for the purpose of maintaining the Warrant Register referred to in Section 4(a),
issuing the Shares or other securities then issuable upon the exercise of the rights under this Warrant, exchanging this Warrant,
replacing this Warrant or conducting related activities.

 

(c)Transferability
of the Warrant. Subject to the provisions of this Warrant with respect to compliance with the Securities Act of 1933, as
amended (the “Securities Act”) and limitations on assignments and transfers, including without limitation compliance
with the restrictions on transfer set forth in Section 5, title to this Warrant may be transferred by endorsement (by the transferor
and the transferee executing the assignment form attached as Exhibit B (the “Assignment Form”))
and delivery in the same manner as a negotiable instrument transferable by endorsement and delivery.

 

(d)Exchange
of the Warrant upon a Transfer. On surrender of this Warrant (and a properly endorsed Assignment Form) for exchange, subject
to the provisions of this Warrant with respect to compliance with the Securities Act and limitations on assignments and transfers,
the Company shall issue to or on the order of the Holder a new warrant or warrants of like tenor, in the name of the Holder or
as the Holder (on payment by the Holder of any applicable transfer taxes) may direct, for the number of shares issuable upon exercise
hereof, and the Company shall register any such transfer upon the Warrant Register. This Warrant (and the securities issuable upon
exercise of the rights under this Warrant) must be surrendered to the Company or its warrant or transfer agent, as applicable,
as a condition precedent to the sale, pledge, hypothecation or other transfer of any interest in any of the securities represented
hereby.

 

(e)Taxes.
In no event shall the Company be required to pay any tax which may be payable in respect of any transfer involved in the issue
and delivery of any certificate in a name other than that of the Holder, and the Company shall not be required to issue or deliver
any such certificate unless and until the person or persons requesting the issue thereof shall have paid to the Company the amount
of such tax or shall have established to the satisfaction of the Company that such tax has been paid or is not payable.

 

5.Restrictions
on Transfer of the Warrant and Shares; Compliance with Securities Laws. By acceptance of this Warrant, the Holder agrees to
comply with the following:

 

(a)Restrictions
on Transfers. Subject to Section 5(b) below, this Warrant may not be transferred or assigned in whole or in part without
the Company’s prior written consent (which shall not be unreasonably withheld), and any attempt by Holder to transfer or
assign any rights, duties or obligations that arise under this Warrant without such permission shall be void. Any transfer of this
Warrant or the Shares or the shares of common stock issuable upon conversion of the Shares (the “Securities”)
must be in compliance with all applicable federal and state securities laws. The Holder agrees not to make any sale, assignment,
transfer, pledge or other disposition of all or any portion of the Securities, or any beneficial interest therein, unless and until
the transferee thereof has agreed in writing for the benefit of the Company to take and hold such Securities subject to, and to
be bound by, the terms and conditions set forth in this Warrant to the same extent as if the transferee were the original Holder
hereunder, and

 

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(i)there is
then in effect a registration statement under the Securities Act covering such proposed disposition and such disposition is made
in accordance with such registration statement, or

 

(ii)(A) such
Holder shall have given prior written notice to the Company of such Holder’s intention to make such disposition and shall
have furnished the Company with a detailed description of the manner and circumstances of the proposed disposition, (B) the transferee
shall have confirmed to the satisfaction of the Company in writing, substantially in the form of Exhibit A-1, that
the Securities are being acquired (i) solely for the transferee’s own account and not as a nominee for any other party, (ii)
for investment and (iii) not with a view toward distribution or resale, and shall have confirmed such other matters related thereto
as may be reasonably requested by the Company, and (C) if requested by the Company, such Holder shall have furnished the Company,
at the Holder’s expense, with (i) an opinion of counsel, reasonably satisfactory to the Company, to the effect that such
disposition will not require registration of such Securities under the Securities Act or (ii) a “no action” letter
from the Securities and Exchange Commission to the effect that the transfer of such Securities without registration will not result
in a recommendation by the staff of the Securities and Exchange Commission that action be taken with respect thereto, whereupon
such Holder shall be entitled to transfer such Securities in accordance with the terms of the notice delivered by the Holder to
the Company. It is agreed that the Company will not require opinions of counsel for transactions made pursuant to Rule 144 except
in unusual circumstances.

 

(b)Permitted
Transfers. Permitted transfers include (i) a transfer not involving a change in beneficial ownership, (ii) transactions
involving the distribution without consideration of Securities by any Holder to a parent, subsidiary or other affiliate of a Holder
that is a corporation, partnership, limited liability company or other corporate entity, or (iii) a transfer to a family trust
or immediate family member effected for estate planning purposes; provided, however, that the Holder shall give written
notice to the Company of the Holder’s intention to effect such disposition and shall have furnished the Company with a detailed
description of the manner and circumstances of the proposed disposition.

 

(c)Investment
Representation Statement. Unless the rights under this Warrant are exercised pursuant to an effective registration statement
under the Securities Act that includes the Shares with respect to which the Warrant was exercised, it shall be a condition to any
exercise of the rights under this Warrant that the Holder shall have confirmed to the satisfaction of the Company in writing, substantially
in the form of Exhibit A-1, that the Shares so purchased are being acquired solely for the Holder’s own account
and not as a nominee for any other party, for investment and not with a view toward distribution or resale and that the Holder
shall have confirmed such other matters related thereto as may be reasonably requested by the Company.

 

(d)Securities
Law Legend. The Securities shall (unless otherwise permitted by the provisions of this Warrant) be stamped or imprinted
with a legend substantially similar to the following (in addition to any legend required by state securities laws):

 

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THE SECURITIES REPRESENTED HEREBY
HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS OF
ANY STATES. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED UNDER
THE ACT AND APPLICABLE STATE SECURITIES LAWS IN ACCORDANCE WITH APPLICABLE REGISTRATION REQUIREMENTS OR AN EXEMPTION THEREFROM.
THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE OR
TRANSFER, PLEDGE OR HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS. This
certificate must be surrendered to the coMPANY or its transfer agent as a condition precedent to the sale, TRANSFER, pledge OR
hypothecation of any interest in any of the securities represented hereby.

 

(e)Not Used.

 

(f)Instructions
Regarding Transfer Restrictions. The Holder consents to the Company making a notation on its records and giving instructions
to any transfer agent in order to implement the restrictions on transfer established in this Section 5.

 

(g)Removal
of Legend. The legend referring to federal and state securities laws identified in Section 5(d) stamped on a certificate
evidencing the Shares (and the common stock issuable upon conversion thereof) and the stock transfer instructions and record notations
with respect to such securities shall be removed and the Company shall issue a certificate without such legend to the holder of
such securities if (i) such securities are registered under the Securities Act, or (ii) such holder provides the Company with an
opinion of counsel reasonably acceptable to the Company to the effect that a sale or transfer of such securities may be made without
registration or qualification.

 

6.Adjustments.
Subject to the expiration of this Warrant pursuant to Section 8, the number and kind of shares purchasable hereunder and the Exercise
Price therefor are subject to adjustment from time to time, as follows:

 

(a)Merger
or Reorganization. If at any time there shall be any reorganization, recapitalization, merger or consolidation (a “Reorganization”)
involving the Company (other than as otherwise provided for herein or as would cause the expiration of this Warrant under Section
8) in which shares of the Company’s stock are converted into or exchanged for securities, cash or other property, then, as
a part of such Reorganization, lawful provision shall be made so that the Holder shall thereafter be entitled to receive upon exercise
of this Warrant, the kind and amount of securities, cash or other property of the successor corporation resulting from such Reorganization,
equivalent in value to that which a holder of the Shares deliverable upon exercise of this Warrant would have been entitled in
such Reorganization if the right to purchase the Shares hereunder had been exercised immediately prior to such Reorganization.
In any such case, appropriate adjustment (as determined in good faith by the Board of Directors of the successor corporation) shall
be made in the application of the provisions of this Warrant with respect to the rights and interests of the Holder after such
Reorganization to the end that the provisions of this Warrant shall be applicable after the event, as near as reasonably may be,
in relation to any shares or other securities deliverable after that event upon the exercise of this Warrant.

 

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(b)Reclassification
of Shares. If the securities issuable upon exercise of this Warrant are changed into the same or a different number of
securities of any other class or classes by reclassification, capital reorganization, conversion of all outstanding shares of the
relevant class or series (other than as would cause the expiration of this Warrant pursuant to Section 8) or otherwise (other than
as otherwise provided for herein) (a “Reclassification”), then, in any such event, in lieu of the number of
Shares which the Holder would otherwise have been entitled to receive, the Holder shall have the right thereafter to exercise this
Warrant for a number of shares of such other class or classes of stock that a holder of the number of securities deliverable upon
exercise of this Warrant immediately before that change would have been entitled to receive in such Reclassification, all subject
to further adjustment as provided herein with respect to such other shares.

 

(c)Subdivisions
and Combinations. In the event that the outstanding shares of applicable capital stock are subdivided (by stock split,
by payment of a stock dividend or otherwise) into a greater number of shares of such securities, the number of Shares issuable
upon exercise of the rights under this Warrant immediately prior to such subdivision shall, concurrently with the effectiveness
of such subdivision, be proportionately increased, and the Exercise Price shall be proportionately decreased, and in the event
that the outstanding shares of applicable capital stock are combined (by reclassification or otherwise) into a lesser number of
shares of such securities, the number of Shares issuable upon exercise of the rights under this Warrant immediately prior to such
combination shall, concurrently with the effectiveness of such combination, be proportionately decreased, and the Exercise Price
shall be proportionately increased.

 

(d)Notice
of Adjustments. Upon any adjustment in accordance with this Section 6, the Company shall give notice thereof to the Holder,
which notice shall state the event giving rise to the adjustment, the Exercise Price as adjusted and the number of securities or
other property purchasable upon the exercise of the rights under this Warrant, setting forth in reasonable detail the method of
calculation of each. The Company shall, upon the written request of any Holder, furnish or cause to be furnished to such Holder
a certificate setting forth (i) such adjustments, (ii) the Exercise Price at the time in effect and (iii) the number of securities
and the amount, if any, of other property that at the time would be received upon exercise of this Warrant.

 

7.Notification
of Certain Events. Prior to the expiration of this Warrant pursuant to Section 8, in the event that the Company shall authorize:

 

(a)the voluntary
liquidation, dissolution or winding up of the Company; or

 

(b)any transaction
resulting in the expiration of this Warrant pursuant to Sections 8(b) or 8(c);

 

the Company shall
send to the Holder of this Warrant at least ten (10) days prior written notice of the expected effective date of any such other
event specified in clause (a) or (b) above, as applicable. The notice provisions set forth in this section may be shortened or
waived prospectively or retrospectively by the consent of the Holder of this Warrant.

 

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8.Expiration
of the Warrant. This Warrant shall expire and shall no longer be exercisable as of the earlier of:

 

(a)11:59 p.m.,
Mountain time, on August 30, 2018;

 

(b)(i) the acquisition
of the Company by another entity by means of any transaction or series of related transactions to which the Company is a party
(including, without limitation, any stock acquisition, reorganization, merger or consolidation, but excluding any sale of stock
for capital raising purposes and any transaction effected primarily for purposes of changing the Company’s jurisdiction of
incorporation) other than a transaction or series of related transactions in which the holders of the voting securities of the
Company outstanding immediately prior to such transaction or series of related transactions retain, immediately after such transaction
or series of transactions, as a result of shares in the Company held by such holders prior to such transaction or series of transactions,
at least a majority of the total voting power represented by the outstanding voting securities of the Company or such other surviving
or resulting entity (or if the Company or such other surviving or resulting entity is a wholly-owned subsidiary immediately following
such acquisition, its parent), or (ii) a sale, lease or other disposition of all or substantially all of the assets of the Company
and its subsidiaries taken as a whole by means of any transaction or series of related transactions, except where such sale, lease
or other disposition is to a wholly-owned subsidiary of the Company; or

 

(c)Immediately
prior to the closing of a firm commitment underwritten initial public offering pursuant to an effective registration statement
filed under the Securities Act covering the offering and sale of the Company’s common stock.

 

9.No
Rights as a Stockholder. Nothing contained herein shall entitle the Holder to any rights as a stockholder of the Company or
to be deemed the holder of any securities that may at any time be issuable on the exercise of the rights hereunder for any purpose
nor shall anything contained herein be construed to confer upon the Holder, as such, any right to vote for the election of directors
or upon any matter submitted to stockholders at any meeting thereof, or to give or withhold consent to any corporate action (whether
upon any recapitalization, issuance of stock, reclassification of stock, change of par value or change of stock to no par value,
consolidation, merger, conveyance or otherwise) or to receive notice of meetings, or to receive dividends or subscription rights
or any other rights of a stockholder of the Company until the rights under the Warrant shall have been exercised and the Shares
purchasable upon exercise of the rights hereunder shall have become deliverable as provided herein.

 

10.Representations
and Warranties of the Holder. By acceptance of this Warrant, the Holder represents and warrants to the Company as follows:

 

(a)No Registration.
The Holder understands that the Securities have not been, and will not be, registered under the Securities Act by reason of a specific
exemption from the registration provisions of the Securities Act, the availability of which depends upon, among other things, the
bona fide nature of the investment intent and the accuracy of the Holder’s representations as expressed herein or
otherwise made pursuant hereto.

 

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(b)Investment
Intent. The Holder is acquiring the Securities for investment for its own account, not as a nominee or agent, and not with
a view to, or for resale in connection with, any distribution thereof. The Holder has no present intention of selling, granting
any participation in, or otherwise distributing the Securities, nor does it have any contract, undertaking, agreement or arrangement
for the same.

 

(c)Investment
Experience. The Holder has substantial experience in evaluating and investing in private placement transactions of securities
in companies similar to the Company, and has such knowledge and experience in financial or business matters so that it is capable
of evaluating the merits and risks of its investment in the Company and protecting its own interests.

 

(d)Speculative
Nature of Investment. The Holder understands and acknowledges that the Company has a limited financial and operating history
and that its investment in the Company is highly speculative and involves substantial risks. The Holder can bear the economic risk
of its investment and is able, without impairing its financial condition, to hold the Securities for an indefinite period of time
and to suffer a complete loss of its investment.

 

(e)Access
to Data. The Holder has had an opportunity to ask questions of officers of the Company, which questions were answered to
its satisfaction. The Holder believes that it has received all the information that it considers necessary or appropriate for deciding
whether to acquire the Securities. The Holder understands that any such discussions, as well as any information issued by the Company,
were intended to describe certain aspects of the Company’s business and prospects, but were not necessarily a thorough or
exhaustive description. The Holder acknowledges that any business plans prepared by the Company have been, and continue to be,
subject to change and that any projections included in such business plans or otherwise are necessarily speculative in nature,
and it can be expected that some or all of the assumptions underlying the projections will not materialize or will vary significantly
from actual results.

 

(f)Accredited
Investor. The Holder is an “accredited investor” within the meaning of Regulation D, Rule 501(a), promulgated
by the Securities and Exchange Commission and agrees to submit to the Company such further assurances of such status as may be
reasonably requested by the Company.

 

(g)Residency.
The residency of the Holder (or, in the case of a partnership or corporation, such entity’s principal place of business)
is correctly set forth on the signature page hereto.

 

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(h)Restrictions
on Resales. The Holder acknowledges that the Securities must be held indefinitely unless subsequently registered under
the Securities Act or an exemption from such registration is available. The Holder is aware of the provisions of Rule 144 promulgated
under the Securities Act, which permit resale of shares purchased in a private placement subject to the satisfaction of certain
conditions, which may include, among other things, the availability of certain current public information about the Company; the
resale occurring not less than a specified period after a party has purchased and paid for the security to be sold; the number
of shares being sold during any three-month period not exceeding specified limitations; the sale being effected through a “broker’s
transaction,” a transaction directly with a “market maker” or a “riskless principal transaction”
(as those terms are defined in the Securities Act or the Securities Exchange Act of 1934, as amended, and the rules and regulations
promulgated thereunder); and the filing of a Form 144 notice, if applicable. The Holder acknowledges and understands that the Company
may not be satisfying the current public information requirement of Rule 144 at the time the Holder wishes to sell the Securities
and that, in such event, the Holder may be precluded from selling the Securities under Rule 144 even if the other applicable requirements
of Rule 144 have been satisfied. The Holder acknowledges that, in the event the applicable requirements of Rule 144 are not met,
registration under the Securities Act or an exemption from registration will be required for any disposition of the Securities.
The Holder understands that, although Rule 144 is not exclusive, the Securities and Exchange Commission has expressed its opinion
that persons proposing to sell restricted securities received in a private offering other than in a registered offering or pursuant
to Rule 144 will have a substantial burden of proof in establishing that an exemption from registration is available for such offers
or sales and that such persons and the brokers who participate in the transactions do so at their own risk.

 

(i)No Public
Market. The Holder understands and acknowledges that no public market now exists for any of the securities issued by the
Company and that the Company has made no assurances that a public market will ever exist for the Company’s securities.

 

(j)Brokers
and Finders. The Holder has not engaged any brokers, finders or agents in connection with the Securities, and the Company
has not incurred nor will incur, directly or indirectly, as a result of any action taken by the Holder, any liability for brokerage
or finders’ fees or agents’ commissions or any similar charges in connection with the Securities.

 

(k)Legal
Counsel. The Holder has had the opportunity to review this Warrant, the exhibits and schedules attached hereto and the
transactions contemplated by this Warrant with its own legal counsel. The Holder is not relying on any statements or representations
of the Company or its agents for legal advice with respect to this investment or the transactions contemplated by this Warrant.

 

(l)Tax Advisors.
The Holder has reviewed with its own tax advisors the U.S. federal, state and local and non-U.S. tax consequences of this investment
and the transactions contemplated by this Warrant. With respect to such matters, the Holder relies solely on any such advisors
and not on any statements or representations of the Company or any of its agents, written or oral. The Holder understands that
it (and not the Company) shall be responsible for its own tax liability that may arise as a result of this investment and the transactions
contemplated by this Warrant.

 

11.Notices.
In the event of:

 

(a)Any taking
by the Company of a record of the holders of any class of securities of the Company for the purpose of determining the holders
thereof who are entitled to receive any dividend or other distribution or any right to subscribe for, purchase or otherwise acquire
any shares of stock of any class or any other securities or property, or to receive any other right;

 

    	- 11 -

    	 

    

 

(b)Any capital
reorganization of the Company, any reclassification or recapitalization of the capital stock of the Company or any transfer of
all or substantially all of the assets of the Company to any other Person or any consolidation or merger involving the Company;

 

(c)Any voluntary
or involuntary dissolution, liquidation or winding-up of the Company; or

 

(d)Any other Liquidation
Transaction (as defined in the Note) of the Company,

 

the Company will mail
to Holder of this Warrant at least twenty (20) days prior to the earliest date specified therein, a notice specifying (A) the date
on which any such record is to be taken for the purpose of any dividend, distribution or right and the amount and character of
such dividend, distribution or right; and (B) the date on which any reorganization, reclassification, transfer, consolidation,
merger, dissolution, liquidation, winding-up or other Liquidation Transaction is expected to become effective, the material terms
thereof and the record date for determining stockholders entitled to vote thereon.

 

12.Miscellaneous.

 

(a)Amendments.
Any provision of this Warrant may be amended, waived or modified upon the written consent of the Company and the Required Holders
(as defined in the Note).

 

(b)Waivers.
No waiver of any single breach or default shall be deemed a waiver of any other breach or default theretofore or thereafter occurring.

 

(c)Notices.
Except as otherwise provided herein, all notices and other communications required or permitted hereunder shall be in writing and
shall be faxed or delivered to each party to the facsimile number or its address as shown (i) in the case of the Company, on the
signature pages hereof, and (ii) in the case of the Holder, on the records of the Company (or to such other facsimile number or
address as the recipient of any notice shall have notified the other parties in writing). All such notices and communications shall
be effective (a) when delivered by Federal Express or other overnight courier service of recognized standing; or (b) when delivered
by hand, upon delivery; and (c) when faxed, upon confirmation of receipt.

 

(d)Governing
Law. This Warrant and all actions arising out of or in connection with this Warrant shall be governed by and construed
in accordance with the laws of the State of Delaware, without regard to the conflicts of law provisions of the State of Delaware
or of any other state.

 

(e)Titles
and Subtitles. The titles and subtitles used in this Warrant are used for convenience only and are not to be considered
in construing or interpreting this Warrant. All references in this Warrant to sections, paragraphs and exhibits shall, unless otherwise
provided, refer to sections and paragraphs hereof and exhibits attached hereto.

 

    	- 12 -

    	 

    

 

(f)Severability.
If any provision of this Warrant becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void,
portions of such provision, or such provision in its entirety, to the extent necessary, shall be severed from this Warrant, and
such illegal, unenforceable or void provision shall be replaced with a valid and enforceable provision that will achieve, to the
extent possible, the same economic, business and other purposes of the illegal, unenforceable or void provision. The balance of
this Warrant shall be enforceable in accordance with its terms.

 

(g)Arbitration.
Any dispute arising under or in connection with any matter of any nature (whether sounding in contract or tort) relating to or
arising out of this Agreement, shall be resolved exclusively by arbitration. The arbitration shall be in conformity with and subject
to the applicable rules and procedures of the American Arbitration Association. All parties agree to be (1) subject to the jurisdiction
and venue of the arbitration in the State of Utah, (2) bound by the decision of the arbitrator as the final decision with respect
to the dispute, and (3) subject to the jurisdiction of the District Courts of the State of Utah for the purpose of confirmation
and enforcement of any award.

 

(h)Delaware
Corporate Securities Law. THE SALE OF THE SECURITIES THAT ARE THE SUBJECT OF THIS WARRANT HAS NOT BEEN QUALIFIED WITH THE
COMMISSIONER OF CORPORATIONS OF THE STATE OF DELAWARE AND THE ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART
OF THE CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE OF SECURITIES IS EXEMPT FROM QUALIFICATION
BY THE DELAWARE CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS WARRANT ARE EXPRESSLY CONDITIONED UPON THE QUALIFICATION BEING
OBTAINED, UNLESS THE SALE IS SO EXEMPT.

 

(i)Rights
and Obligations Survive Exercise of the Warrant. Except as otherwise provided herein, the rights and obligations of the
Company and the Holder under this Warrant shall survive exercise of this Warrant.

 

(j)Entire
Agreement. Except as expressly set forth herein, this Warrant (including the exhibits attached hereto) constitutes the
entire agreement and understanding of the Company and the Holder with respect to the subject matter hereof and supersede all prior
agreements and understandings relating to the subject matter hereof.

 

(Signature Page Follows)

 

    	- 13 -

    	 

    

 

The Company and the Holder
sign this Warrant as of the date first above written.

 

	 	COMPANY:
	 	 
	 	Q THERAPEUTICS , INC.
	 	a Delaware corporation
	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

	 	Address:	615 Arapeen Drive, Suite 102
	 	 	Salt Lake City, UT 84108

 

AGREED AND ACKNOWLEDGED:

 

	 	 
	 
	Address:

 

854 West Chalmers Place

Chicago, IL 60614

 

[SIGNATURE PAGE TO WARRANT TO PURCHASE SHARES
OF CAPITAL STOCK]

 

    	 

    	 

    

 

EXHIBIT A

 

NOTICE OF EXERCISE

 

TO:Q THERAPEUTICS, INC. (the “Company”)

 

Attention:Chief Financial Officer

 

		(1)	Exercise. The undersigned elects to purchase the following pursuant to the terms of the
attached warrant:

 

	Number of shares:	 
	 	 
	Type of security:	 

 

		(2)	Method of Exercise. The undersigned elects to exercise the attached warrant pursuant to:

 

	[  ]	A cash payment or cancellation of indebtedness, and tenders herewith payment of the purchase price for such shares in full, together with all applicable transfer taxes.
	 	 
	[  ]	The net issue exercise provisions of Section 2(b) of the attached warrant.

 

		(3)	Conditional Exercise. Is this a conditional exercise pursuant to Section 2(e)

:

 

	[  ] Yes [  ] No	 
	 	 
	If “Yes,” indicate the applicable condition:	 
	 	 
	 	 

 

		(4)	Stock Certificate. Please issue a certificate or certificates representing the shares in
the name of:

 

	[  ]	The undersigned	 
	 	 	 
	[  ]	Other—Name:	 
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 

 

    	A - 1 

    	 

    

 

		(5)	Unexercised Portion of the Warrant. Please issue a new warrant for the unexercised portion
of the attached warrant in the name of:

 

	[  ]	The undersigned	 
	 	 	 
	[  ]	Other—Name:	 
	 	 	 
	 	Address:	 
	 	 	 
	[  ]	Not applicable	 

 

[Signature
page to the Notice of Exercise]

  

		(6)	Investment Intent. The undersigned represents and warrants that the aforesaid shares are
being acquired for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection
with, the distribution thereof, and that the undersigned has no present intention of selling, granting any participation in, or
otherwise distributing the shares, nor does it have any contract, undertaking, agreement or arrangement for the same, and all representations
and warranties of the undersigned set forth in Section 10 of the attached warrant are true and correct as of the date hereof.

 

		(7)	Investment Representation Statement. The undersigned has executed, and delivers herewith,
an Investment Representation Statement in a form substantially similar to the form attached to the warrant as Exhibit A-1.

 

		(8)	Consent to Receipt of Electronic Notice. Subject to the limitations set forth in Delaware
Corporation Law, the undersigned consents to the delivery of any notice to stockholders given by the Company under the Delaware
General Corporation Law or the Company’s certificate of incorporation or bylaws by (i) facsimile telecommunication to the
facsimile number provided below (or to any other facsimile number for the undersigned in the Company’s records), (ii) electronic
mail to the electronic mail address provided below (or to any other electronic mail address for the undersigned in the Company’s
records), (iii) posting on an electronic network together with separate notice to the undersigned of such specific posting or (iv)
any other form of electronic transmission (as defined in the Delaware General Corporation Law) directed to the undersigned. This
consent may be revoked by the undersigned by written notice to the Company and may be deemed revoked in the circumstances specified
in Delaware General Corporation Law §232.

 

	 	 
	 	(Print name of the warrant holder)
	 	 
	 	 
	 	(Signature)
	 	 
	 	 
	 	(Name and title of signatory, if applicable)
	 	 
	 	 
	 	(Date)
	 	 
	 	 
	 	(Fax number)
	 	 
	 	 
	 	(Email address)

 

[Signature
page to the Notice of Exercise]

 

    	 

    	 

    

 

EXHIBIT A-l

 

INVESTMENT REPRESENTATION
STATEMENT

 

	INVESTOR:	 
	 	 
	COMPANY:	Q THERAPEUTICS, Inc
	 	 
	SECURITIES:	THE WARRANT ISSUED ON AUGUST 30, 2011 (THE “WARRANT”) AND THE SECURITIES ISSUED OR ISSUABLE UPON EXERCISE THEREOF (INCLUDING UPON SUBSEQUENT CONVERSION OF THOSE SECURITIES)
	 	 
	DATE:	____________________________

 

In connection with the
purchase or acquisition of the above-listed Securities, the undersigned Investor represents and warrants to, and agrees with, the
Company as follows:

 

1.No Registration.
The Investor understands that the Securities have not been, and will not be, registered under the Securities Act of 1933, as amended
(the “Securities Act”), by reason of a specific exemption from the registration provisions of the Securities
Act, the availability of which depends upon, among other things, the bona fide nature of the investment intent and the accuracy
of the Investor’s representations as expressed herein or otherwise made pursuant hereto.

 

2.Investment Intent.
The Investor is acquiring the Securities for investment for its own account, not as a nominee or agent, and not with a view to,
or for resale in connection with, any distribution thereof. The Investor has no present intention of selling, granting any participation
in, or otherwise distributing the Securities, nor does it have any contract, undertaking, agreement or arrangement for the same.

 

3.Investment Experience.
The Investor has substantial experience in evaluating and investing in private placement transactions of securities in companies
similar to the Company, and has such knowledge and experience in financial or business matters so that it is capable of evaluating
the merits and risks of its investment in the Company and protecting its own interests.

 

4.Speculative Nature
of Investment. The Investor understands and acknowledges that the Company has a limited financial and operating history and
that its investment in the Company is highly speculative and involves substantial risks. The Investor can bear the economic risk
of its investment and is able, without impairing its financial condition, to hold the Securities for an indefinite period of time
and to suffer a complete loss of its investment.

 

    	A-1-1

    	 

    

 

5.Access to Data.
The Investor has had an opportunity to ask questions of officers of the Company, which questions were answered to its satisfaction.
The Investor believes that it has received all the information that it considers necessary or appropriate for deciding whether
to acquire the Securities. The Investor understands that any such discussions, as well as any information issued by the Company,
were intended to describe certain aspects of the Company’s business and prospects, but were not necessarily a thorough or
exhaustive description. The Investor acknowledges that any business plans prepared by the Company have been, and continue to be,
subject to change and that any projections included in such business plans or otherwise are necessarily speculative in nature,
and it can be expected that some or all of the assumptions underlying the projections will not materialize or will vary significantly
from actual results.

 

6.Accredited Investor.
The Investor is an “accredited investor” within the meaning of Regulation D, Rule 501(a), promulgated by the Securities
and Exchange Commission and agrees to submit to the Company such further assurances of such status as may be reasonably requested
by the Company.

 

7.Residency.
The residency of the Investor (or, in the case of a partnership or corporation, such entity’s principal place of business)
is correctly set forth on the signature page hereto.

 

8.Restrictions on
Resales. The Investor acknowledges that the Securities must be held indefinitely unless subsequently registered under the Securities
Act or an exemption from such registration is available. The Investor is aware of the provisions of Rule 144 promulgated under
the Securities Act, which permit resale of shares purchased in a private placement subject to the satisfaction of certain conditions,
which may include, among other things, the availability of certain current public information about the Company; the resale occurring
not less than a specified period after a party has purchased and paid for the security to be sold; the number of shares being sold
during any three-month period not exceeding specified limitations; the sale being effected through a “broker’s transaction,”
a transaction directly with a “market maker” or a “riskless principal transaction” (as those terms are
defined in the Securities Act or the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder);
and the filing of a Form 144 notice, if applicable. The Investor acknowledges and understands that the Company may not be satisfying
the current public information requirement of Rule 144 at the time the Investor wishes to sell the Securities and that, in such
event, the Investor may be precluded from selling the Securities under Rule 144 even if the other applicable requirements of Rule
144 have been satisfied. The Investor understands and acknowledges that, in the event the applicable requirements of Rule 144 are
not met, registration under the Securities Act or an exemption from registration will be required for any disposition of the Securities.
The Investor understands that, although Rule 144 is not exclusive, the Securities and Exchange Commission has expressed its opinion
that persons proposing to sell restricted securities received in a private offering other than in a registered offering or pursuant
to Rule 144 will have a substantial burden of proof in establishing that an exemption from registration is available for those
offers or sales and that those persons and the brokers who participate in the transactions do so at their own risk.

 

9.No Public Market.
The Investor understands and acknowledges that no public market now exists for any of the securities issued by the Company and
that the Company has made no assurances that a public market will ever exist for the Company’s securities.

 

    	A-1-2

    	 

    

 

10.Brokers and Finders.
The Investor has not engaged any brokers, finders or agents in connection with the Securities, and the Company has not incurred
nor will incur, directly or indirectly, as a result of any action taken by the Investor, any liability for brokerage or finders’
fees or agents’ commissions or any similar charges in connection with the Securities.

 

11.Legal Counsel.
The Investor has had the opportunity to review the Warrant, the exhibits and schedules attached thereto and the transactions contemplated
by the Warrant with its own legal counsel. The Investor is not relying on any statements or representations of the Company or its
agents for legal advice with respect to this investment or the transactions contemplated by the Warrant.

 

12.Tax Advisors.
The Investor has reviewed with its own tax advisors the U.S. federal, state and local and non-U.S. tax consequences of this investment
and the transactions contemplated by the Warrant. With respect to such matters, the Investor relies solely on such advisors and
not on any statements or representations of the Company or any of its agents, written or oral. The Investor understands that it
(and not the Company) shall be responsible for its own tax liability that may arise as a result of this investment or the transactions
contemplated by the Warrant.

 

(Signature Page Follows)

 

    	A-1-3

    	 

    

 

The Investor is signing
this Investment Representation Statement on the date first written above.

 

	 	INVESTOR:
	 	 
	 	 
	 	(Print name of the investor)
	 	 
	 	 
	 	(Signature)
	 	 
	 	 
	 	(Name and title of signatory, if applicable)
	 	 
	 	 
	 	(Street address)
	 	 
	 	 
	 	(City, state and ZIP)

 

    	A-1-4

    	 

    

 

EXHIBIT B

 

ASSIGNMENT FORM

 

	ASSIGNOR:	 
	 	 
	COMPANY:	Q THERAPEUTICS, INC.
	 	 
	WARRANT:	THE WARRANT TO PURCHASE SHARES OF CAPITAL STOCK ISSUED ON AUGUST 30, 2011 (THE “WARRANT”)
	 	 
	DATE:	________________________

 

		(1)	Assignment. The undersigned registered holder of the Warrant (“Assignor”)
assigns and transfers to the assignee named below (“Assignee”) all of the rights of Assignor under the Warrant,
with respect to the number of shares set forth below:

 

Name of
Assignee: _______________________________________________

 

Address of
Assignee: _____________________________________________

 

Number of
Shares Assigned: _______________________________________

 

and
does irrevocably constitute and appoint ______________________ as attorney to make such transfer on the books of Q THERAPEUTICS,
INC. maintained for the purpose, with full power of substitution in the premises.

 

		(2)	Obligations of Assignee. Assignee agrees to take and hold the Warrant and any shares of
stock to be issued upon exercise of the rights thereunder (and any shares issuable upon conversion thereof) (the “Securities”)
subject to, and to be bound by, the terms and conditions set forth in the Warrant to the same extent as if Assignee were the original
holder thereof.

 

		(3)	Investment Intent. Assignee represents and warrants that the Securities are being acquired
for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection with, the distribution
thereof, and that Assignee has no present intention of selling, granting any participation in, or otherwise distributing the shares,
nor does it have any contract, undertaking, agreement or arrangement for the same, and all representations and warranties set forth
in Section 10 of the Warrant are true and correct as to Assignee as of the date hereof.

 

		(4)	Investment Representation Statement. Assignee has executed, and delivers herewith, an Investment
Representation Statement in a form substantially similar to the form attached to the Warrant as Exhibit A-1.

 

    	- 1 -

    	 

    

 

Assignor and Assignee are
signing this Assignment Form on the date first set forth above.

 

	ASSIGNOR	 	ASSIGNEE
	 	 	 
	 	 	 
	(Print name of Assignor)	 	(Print name of Assignee)
	 	 	 
	 	 	 
	 	 	 
	(Signature of Assignor)	 	(Signature of Assignee)
	 	 	 
	 	 	 
	(Print name of signatory, if applicable)	 	(Print name of signatory, if applicable)
	 	 	 
	 	 	 
	(Print title of signatory, if applicable)	 	(Print title of signatory, if applicable)
	 	 	 
	Address:	 	Address:
	 	 	 
	 	 	 
	 	 	 
	 	 	 

  

    	- 2 -Exhibit 4.4

 

AMENDMENT TO STOCK PURCHASE WARRANT 

 

This Amendment to Stock
Purchase Warrant (this “Amendment”) is made and entered into as of October 13, 2011, by and between Q Holdings,
Inc. (formerly known as Grace 2, Inc.), a Delaware corporation (the “Parent”), Q Therapeutics, Inc.,
a Delaware corporation (the “Company”), and _________________, (the “Warrant Holder”).
Capitalized terms not otherwise defined herein shall have the meanings ascribed to them in the Warrant Agreement (as defined below).

 

WHEREAS, Warrant Holder
was validly issued and holds warrants to purchase approximately ______________ Shares of Common Stock of Company at an exercise
price of $2.16 per share (the “Warrant Agreement”);

 

WHEREAS, the Company entered
into an Agreement and Plan of Merger (“Merger Agreement”) with Parent, pursuant to which the Company effectively
merged with a subsidiary of Parent, with the Company surviving the transaction and now operating as a wholly owned subsidiary of
Parent (the “Merger”); and

 

WHEREAS, in connection
with execution of the Merger Agreement, the Warrant Holder and the Company desire, pursuant to Section 12(a) of the Warrant
Agreement, to amend the Warrant Agreement as set forth herein.

 

NOW THEREFORE, in consideration
of the premises and the mutual covenants set forth herein and for other good and valuable consideration, the receipt and sufficiency
of which is hereby mutually acknowledged, the Company and the Warrant holder hereby agree as follows:

 

1. Amendments. Effective
upon the Closing Date (as defined in the Merger Agreement), the Warrant Holder and the Company, with the full approval and ratification
of Parent, hereby amend the Warrant Agreement as follows: 

 

a. The title
of the Warrant Agreement shall be replaced in its entirety to provide as follows:

 

    	 

    	 

    

 

“WARRANT TO PURCHASE SHARES OF 

COMMON STOCK OF Q HOLDINGS, INC. 

(formerly Grace 2, Inc.)” 

 

b. The recital paragraph
on the title page shall be replaced in its entirety to provide as follows:

 

“THIS CERTIFIES
THAT, for value received, ________________, or its registered assigns (the “Holder”), is entitled
to subscribe for and purchase from Q HOLDINGS, INC. (formerly Grace 2, Inc.), a Delaware corporation (the “Company”),
during the period specified in Section 1 hereof, ____________________ (_______________) shares of Common Stock, $0.0001
par value (the “Warrant Shares”), of the Company, at an exercise price of $1.00 per share (the “Exercise
Price”), subject to and in accordance with the terms and conditions hereinafter set forth. The number, character and Exercise
Price of the Warrant Shares are subject to adjustment as provided herein. The term “Warrant” as used herein shall include
this warrant and any warrants delivered in substitution or exchange therefore as provided herein.”

 

c. All Exhibits
of the Warrant Agreement shall be replaced in their entirety by all Exhibits attached to this Amendment.

 

d. The Signature
Page of the Warrant Agreement shall be replaced in its entirety and in its effect by the Signature Page to this Amendment.

 

2. Ratification. Except
as expressly amended by this Amendment, the terms and conditions of Warrant Agreement are hereby confirmed and shall remain in
full force and effect without impairment or modification.

 

3. Conflict. In the event
of any conflict between any Warrant Agreement and this Amendment, the terms of this Amendment shall govern.

 

4. Binding Effect. The
parties acknowledge and agree that this Amendment complies with all of the applicable terms and conditions set forth in Section
12(a) of the Warrant Agreement that are necessary to effect an amendment to the Warrant Agreement and therefore, upon the execution
and delivery hereof by the parties, this Amendment shall have such binding effect.

 

5. Ownership; Power and
Authority. The Warrant Holder represents and warrants that it is the sole beneficial and record owner of the Warrant Agreement
and that there is no other holder of the Warrant Agreement or any interest therein and that it has the full power and authority
to enter into this Amendment.

 

6. Governing Law. This
Amendment shall be governed and construed under the laws of the State of Utah, without reference to its choice of law or conflict
of law rules.

 

7. Counterparts. This
Amendment may be executed simultaneously in any number of counterparts, each of which shall be deemed an original, but all of such
counterparts shall together constitute one and the same instrument.

 

[Remainder of page intentionally left blank.]

 

    	 

    	 

    

 

IN WITNESS WHEREOF, the
parties have caused this Amendment to be duly executed and delivered as of the date first written above.

 

	 	WARRANT HOLDER
	 	 
	 	By: 	 
	 	Name:
	 	Title:
	 	Company:
	 	 
	 	Q THERAPEUTICS, INC.
	 	 
	 	By: 	 
	 	Name: Deborah A. Eppstein, Ph.D.
	 	Title: President and Chief Executive Officer, Director
	 	 
	 	APPROVED AND RATIFIED BY:
	 	 
	 	Q HOLDINGS, INC.
	 	 
	 	 
	 	Name: Deborah A. Eppstein, Ph.D.
	 	Title: President and Chief Executive Officer, Director
	 	Dated: October 13, 2011

 

    	 

    	 

    

 

EXHIBIT A

 

NOTICE OF EXERCISE

 

TO:Q HOLDINGS, INC. (the “Company”)

Attention:Chief Financial Officer

 

		(1)	Exercise. The undersigned elects to purchase the following pursuant to the terms of the
attached warrant:

Number of shares: ___________________________________

Type of security: ____________________________________

 

		(2)	Method of Exercise. The undersigned elects to exercise the attached warrant pursuant to:

	[  ]	A cash payment or cancellation of indebtedness, and tenders herewith payment of the purchase price for such shares in full, together with all applicable transfer taxes.
	[  ]	The net issue exercise provisions of Section 2(b) of the attached warrant.

 

		(3)	Conditional Exercise.  Is this a conditional exercise pursuant to Section Error! Reference
source not found.:

[  ]
 Yes [  ] No

If “Yes,”
indicate the applicable condition:

___________________________________________________

 

		(4)	Stock Certificate. Please issue a certificate or certificates representing the shares in
the name of:

	[  ]	The undersigned	 
	[  ]	Other—Name:	 
	 	Address:	 
	 	 	 

 

		(5)	Unexercised Portion of the Warrant. Please issue a new warrant for the unexercised portion
of the attached warrant in the name of:

	[  ]	The undersigned	 
	[  ]	Other—Name:	 
	 	Address:	 
	 	 	 
	[  ]	Not applicable	 

 

		(6)	Investment Intent. The undersigned represents and warrants that the aforesaid shares are
being acquired for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection
with, the distribution thereof, and that the undersigned has no present intention of selling, granting any participation in, or
otherwise distributing the shares, nor does it have any contract, undertaking, agreement or arrangement for the same, and all representations
and warranties of the undersigned set forth in Section Error! Reference source not found. of the attached warrant are
true and correct as of the date hereof.

 

    	 

    	 

    

 

		(7)	Investment Representation Statement. The undersigned has executed, and delivers herewith,
an Investment Representation Statement in a form substantially similar to the form attached to the warrant as Exhibit A-1.

 

		(8)	Consent to Receipt of Electronic Notice. Subject to the limitations set forth in Delaware
Corporation Law, the undersigned consents to the delivery of any notice to stockholders given by the Company under the Delaware
General Corporation Law or the Company’s certificate of incorporation or bylaws by (i) facsimile telecommunication to the
facsimile number provided below (or to any other facsimile number for the undersigned in the Company’s records), (ii) electronic
mail to the electronic mail address provided below (or to any other electronic mail address for the undersigned in the Company’s
records), (iii) posting on an electronic network together with separate notice to the undersigned of such specific posting or (iv) any
other form of electronic transmission (as defined in the Delaware General Corporation Law) directed to the undersigned. This consent
may be revoked by the undersigned by written notice to the Company and may be deemed revoked in the circumstances specified in
Delaware General Corporation Law §232.

 

	 	 
	 	 
	 	(Print name of the warrant holder)
	 	 
	 	 
	 	(Signature)
	 	 
	 	 
	 	(Name and title of signatory, if applicable)
	 	 
	 	 
	 	(Date)
	 	 
	 	 
	 	(Fax number)
	 	 
	 	 
	 	(Email address)

 

    	 

    	 

    

 

EXHIBIT A-1

 

INVESTMENT REPRESENTATION STATEMENT 

 

	INVESTOR:	_____________________________________________
	COMPANY:	Q Holdings, Inc
	SECURITIES:	THE WARRANT ISSUED ON AUGUST 30, 2011, AS AMENDED (THE “WARRANT”) AND THE SECURITIES ISSUED OR ISSUABLE UPON EXERCISE THEREOF (INCLUDING UPON SUBSEQUENT CONVERSION OF THOSE SECURITIES)
	DATE:	____________________________

 

In connection with the
purchase or acquisition of the above-listed Securities, the undersigned Investor represents and warrants to, and agrees with, the
Company as follows:

 

1.No Registration.
The Investor understands that the Securities have not been, and will not be, registered under the Securities Act of 1933, as amended
(the “Securities Act”), by reason of a specific exemption from the registration provisions of the Securities
Act, the availability of which depends upon, among other things, the bona fide nature of the investment intent and the accuracy
of the Investor’s representations as expressed herein or otherwise made pursuant hereto.

 

2.Investment Intent.
The Investor is acquiring the Securities for investment for its own account, not as a nominee or agent, and not with a view to,
or for resale in connection with, any distribution thereof. The Investor has no present intention of selling, granting any participation
in, or otherwise distributing the Securities, nor does it have any contract, undertaking, agreement or arrangement for the same.

 

3.Investment Experience.
The Investor has substantial experience in evaluating and investing in private placement transactions of securities in companies
similar to the Company, and has such knowledge and experience in financial or business matters so that it is capable of evaluating
the merits and risks of its investment in the Company and protecting its own interests.

 

4.Speculative Nature
of Investment. The Investor understands and acknowledges that the Company has a limited financial and operating history and
that its investment in the Company is highly speculative and involves substantial risks. The Investor can bear the economic risk
of its investment and is able, without impairing its financial condition, to hold the Securities for an indefinite period of time
and to suffer a complete loss of its investment.

 

5.Access to Data.
The Investor has had an opportunity to ask questions of officers of the Company, which questions were answered to its satisfaction.
The Investor believes that it has received all the information that it considers necessary or appropriate for deciding whether
to acquire the Securities. The Investor understands that any such discussions, as well as any information issued by the Company,
were intended to describe certain aspects of the Company’s business and prospects, but were not necessarily a thorough or
exhaustive description. The Investor acknowledges that any business plans prepared by the Company have been, and continue to be,
subject to change and that any projections included in such business plans or otherwise are necessarily speculative in nature,
and it can be expected that some or all of the assumptions underlying the projections will not materialize or will vary significantly
from actual results.

 

    	 

    	 

    

 

6.Accredited Investor.
The Investor is an “accredited investor” within the meaning of Regulation D, Rule 501(a), promulgated by
the Securities and Exchange Commission and agrees to submit to the Company such further assurances of such status as may be reasonably
requested by the Company.

 

7.Residency.
The residency of the Investor (or, in the case of a partnership or corporation, such entity’s principal place of business)
is correctly set forth on the signature page hereto.

 

8.Restrictions on
Resales. The Investor acknowledges that the Securities must be held indefinitely unless subsequently registered under the Securities
Act or an exemption from such registration is available. The Investor is aware of the provisions of Rule 144 promulgated under
the Securities Act, which permit resale of shares purchased in a private placement subject to the satisfaction of certain conditions,
which may include, among other things, the availability of certain current public information about the Company; the resale occurring
not less than a specified period after a party has purchased and paid for the security to be sold; the number of shares being sold
during any three-month period not exceeding specified limitations; the sale being effected through a “broker’s transaction,”
a transaction directly with a “market maker” or a “riskless principal transaction” (as those terms are
defined in the Securities Act or the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder);
and the filing of a Form 144 notice, if applicable. The Investor acknowledges and understands that the Company may not be satisfying
the current public information requirement of Rule 144 at the time the Investor wishes to sell the Securities and that, in such
event, the Investor may be precluded from selling the Securities under Rule 144 even if the other applicable requirements
of Rule 144 have been satisfied. The Investor understands and acknowledges that, in the event the applicable requirements of Rule
144 are not met, registration under the Securities Act or an exemption from registration will be required for any disposition of
the Securities. The Investor understands that, although Rule 144 is not exclusive, the Securities and Exchange Commission
has expressed its opinion that persons proposing to sell restricted securities received in a private offering other than in a registered
offering or pursuant to Rule 144 will have a substantial burden of proof in establishing that an exemption from registration
is available for those offers or sales and that those persons and the brokers who participate in the transactions do so at their
own risk.

 

9.No Public Market.
The Investor understands and acknowledges that no public market now exists for any of the securities issued by the Company and
that the Company has made no assurances that a public market will ever exist for the Company’s securities.

 

10.Brokers and Finders.
The Investor has not engaged any brokers, finders or agents in connection with the Securities, and the Company has not incurred
nor will incur, directly or indirectly, as a result of any action taken by the Investor, any liability for brokerage or finders’
fees or agents’ commissions or any similar charges in connection with the Securities.

 

    	 

    	 

    

 

11.Legal Counsel.
The Investor has had the opportunity to review the Warrant, the exhibits and schedules attached thereto and the transactions contemplated
by the Warrant with its own legal counsel. The Investor is not relying on any statements or representations of the Company or its
agents for legal advice with respect to this investment or the transactions contemplated by the Warrant.

 

12.Tax Advisors.
The Investor has reviewed with its own tax advisors the U.S. federal, state and local and non-U.S. tax consequences of this investment
and the transactions contemplated by the Warrant. With respect to such matters, the Investor relies solely on such advisors and
not on any statements or representations of the Company or any of its agents, written or oral. The Investor understands that it
(and not the Company) shall be responsible for its own tax liability that may arise as a result of this investment or the transactions
contemplated by the Warrant.

 

(Signature Page Follows)

 

    	 

    	 

    

 

The Investor is signing this Investment Representation
Statement on the date first written above.

 

	 	INVESTOR:
	 	 
	 	 
	 	(Print name of the investor)
	 	 
	 	 
	 	(Signature)
	 	 
	 	 
	 	(Name and title of signatory, if applicable)
	 	 
	 	 
	 	(Street address)
	 	 
	 	
	 	(City, state and ZIP)

  

    	 

    	 

    

 

EXHIBIT B

ASSIGNMENT FORM

 

	ASSIGNOR:	____________________________________________
	COMPANY:	Q HOLDINGS, INC.
	WARRANT:	THE WARRANT TO PURCHASE SHARES OF CAPITAL STOCK ISSUED ON AUGUST 30, 2011, AS AMENDED (THE “WARRANT”)
	 	 
	DATE:	_________________________

 

Assignment.
The undersigned registered holder of the Warrant (“Assignor”) assigns and transfers to the assignee named below
(“Assignee”) all of the rights of Assignor under the Warrant, with respect to the number of shares set forth
below:

 

Name of Assignee: _______________________________________

Address
of Assignee:_____________________________________

Number of Shares Assigned:
________________________________ 

 

and does irrevocably constitute and
appoint ______________________ as attorney to make such transfer on the books of Q HOLDINGS, INC. maintained for the purpose, with
full power of substitution in the premises.

 

Obligations
of Assignee. Assignee agrees to take and hold the Warrant and any shares of stock to be issued upon exercise of the rights
thereunder (and any shares issuable upon conversion thereof) (the “Securities”) subject to, and to be bound
by, the terms and conditions set forth in the Warrant to the same extent as if Assignee were the original holder thereof.

 

Investment
Intent. Assignee represents and warrants that the Securities are being acquired for investment for its own account, not as
a nominee or agent, and not with a view to, or for resale in connection with, the distribution thereof, and that Assignee has no
present intention of selling, granting any participation in, or otherwise distributing the shares, nor does it have any contract,
undertaking, agreement or arrangement for the same, and all representations and warranties set forth in Section 10 of the Warrant
are true and correct as to Assignee as of the date hereof.

 

Investment
Representation Statement. Assignee has executed, and delivers herewith, an Investment Representation Statement in a form substantially
similar to the form attached to the Warrant as Exhibit A-1.

 

    	 

    	 

    

 

Assignor and Assignee are
signing this Assignment Form on the date first set forth above.

 

	ASSIGNOR	 	ASSIGNEE
	 	 	 
	 	 	 
	(Print name of Assignor)	 	(Print name of Assignee)
	 	 	 
	 	 	 
	(Signature of Assignor)	 	(Signature of Assignee)
	 	 	 
	 	 	 
	(Print name of signatory, if applicable)	 	(Print name of signatory, if applicable)
	 	 	 
	 	 	 
	(Print title of signatory, if applicable)	 	(Print title of signatory, if applicable)
	 	 	 
	Address:	 	Address:

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