Document:

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                                                                     EXHIBIT 4.3

THE WARRANT EVIDENCED HEREBY, AND THE SHARES OF COMMON STOCK ISSUABLE HEREUNDER,
HAVE BEEN AND WILL BE ISSUED WITHOUT REGISTRATION UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR THE APPLICABLE SECURITIES LAWS OF ANY STATE. SUCH
SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO DISTRIBUTION
OR RESALE, AND SHALL NOT BE SOLD, TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS
THE PROPOSED DISPOSITION IS THE SUBJECT OF A CURRENTLY EFFECTIVE REGISTRATION
STATEMENT UNDER SAID ACT AND UNDER APPLICABLE STATE SECURITIES LAWS OR UNLESS
THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL, IN FORM AND SUBSTANCE REASONABLY
SATISFACTORY TO THE COMPANY, TO THE EFFECT THAT SUCH REGISTRATION IS NOT
REQUIRED UNDER SAID ACT AND SUCH STATE SECURITIES LAWS IN CONNECTION WITH SUCH
DISPOSITION.

                             NOVATEL WIRELESS, INC.

                          COMMON STOCK PURCHASE WARRANT

                         Void After ________ ___, 2004

                    This Stock Purchase Warrant is Issued to

                      [INSERT NAME AND ADDRESS OF GRANTEE]

(hereinafter called the "initial registered holder" or the "registered holder,"
which term shall include its successors and assigns) by Novatel Wireless, Inc.,
a Delaware corporation (hereinafter referred to as the "Company"). The holder of
this Warrant is entitled to certain of the benefits conferred by that certain
Unit Purchase Agreement dated as of _________ __, 1999 (the "Purchase
Agreement"), and that certain Registration Rights Agreement, as amended, dated
as of ________ __, 1999 (the "Registration Rights Agreement"), copies of which
are on file at the office of the Company at the address specified below. This
Warrant may be transferred by the registered holder only in accordance with the
provisions of Sections 1.04 and 5 hereof. A copy of the Purchase Agreement and
the Registration Rights Agreement will be furnished to any subsequent registered
holder hereof upon written request. The Registration Rights Agreement contains
an undertaking by the Company under certain circumstances to effect registration
and qualification under federal and state securities laws of, or to take other
action with respect to, the shares of Common Stock, par value $.001, of the
Company ("Common Stock") issuable on exercise of this Warrant.

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        Section 1. The Warrant.

        1.01. For value received and subject to the terms and conditions
hereinafter set forth, the registered holder is entitled, upon surrender of this
Warrant at any time on or prior to ______ __, 2004 (with the subscription form
annexed hereto duly executed) at the office of the Company at 6540 Lusk Blvd.,
Suite C-166, San Diego, CA 92121, or such other office of which the Company
shall notify the registered holder hereof in writing, to purchase from the
Company [INSERT NUMBER OF SHARES] fully paid and non-assessable shares ("Initial
Exercisable Shares" and, as adjusted from time to time as hereinafter provided,
"Exercisable Shares") of Common Stock for an initial exercise price of $2.00 per
share as adjusted from time to time as provided below (the "Warrant Exercise
Price"). This Warrant may be exercised in full or in part from time to time. As
promptly as practicable after surrender of this Warrant and receipt of payment
of the Warrant Exercise Price, the Company shall issue and deliver to the
registered holder a certificate or certificates for shares of Common Stock, in
certificates of such denominations and in such names as the registered holder
may specify, together with any other stock, securities or property to which such
holder may be entitled to receive pursuant to Sections 1.05(B), 1.05(C) or
1.05(D) hereof. In the case of the purchase of less than all the shares
purchasable under this Warrant, the Company shall cancel this Warrant upon the
surrender hereof and shall execute and deliver a substitute Warrant of like
tenor for the balance of the shares purchasable hereunder. This Warrant shall
expire at 8:00 P.M. (Eastern Standard Time) on ______ __, 2004 and shall be void
thereafter.

        1.02. During the period within which the rights represented by this
Warrant may be exercised, the Company shall at all times have authorized and
reserved for the purpose of issue upon exercise of the rights evidenced hereby,
a sufficient number of shares of its Common Stock to provide for the exercise of
such rights. Upon surrender for exercise, this Warrant shall be canceled and
shall not be reissued; provided, however, that upon the partial exercise hereof
a substitute Warrant representing the rights to subscribe for and purchase any
such unexercised portion hereof shall be issued.

        1.03. Subject to compliance with applicable securities laws, this
Warrant may be subdivided into one or more Stock Purchase Warrants entitling the
registered holder to purchase shares of Common Stock in multiples of one or more
whole shares, upon surrender of this Warrant by the registered holder for such
purpose at the office of the Company.

        1.04. The Company shall maintain at its office (or at such other office
or agency of the Company as it may from time to time designate in writing to the
registered holder hereof), a register containing the names and addresses of the
holders of all Stock Purchase Warrants. The registered holder of such a Warrant
shall be the person in whose name such Warrant is originally issued and
registered, unless a subsequent holder shall have presented to the Company such
Warrant, duly assigned to him, for inspection and a written notice of his
acquisition of such Warrant and designating in writing the address of such
holder, in which case such subsequent holder of the Warrant shall become a
subsequent registered holder. Any registered holder of this Warrant may change
his address as shown on such register by written notice to the Company
requesting such change. Any written notice required or permitted to be given to
the registered holder of this Warrant shall be mailed, by registered or
certified mail, to such registered holder at his address as shown on such
register.

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        1.05. The rights of the registered holder shall be subject to the
following terms and conditions:

                (A) Adjustments to the Warrant Exercise Price.

                        (i) Special Definitions. For purposes of this Subsection
1.05, the following definitions shall apply:

                                (1) "Option" shall mean rights, options or
warrants to subscribe for, purchase or otherwise acquire either Common Stock or
Convertible Securities.

                                (2) "Warrant Exercise Price" shall mean
initially $2.00 per share and shall be subject to adjustment as hereinafter
provided.

                                (3) "Original Issue Date" shall mean the date on
which this Warrant was issued.

                                (4) "Stock Purchase Warrants" shall mean the
Warrants sold by the Company pursuant to the Purchase Agreement.

                                (5) "Convertible Securities" shall mean any
evidences of indebtedness, shares of capital stock (other than Common Stock) or
other securities directly or indirectly convertible into or exchangeable for
Common Stock.

                                (6) "Convertible Debentures" shall mean the
Convertible Debentures sold by the Company pursuant to the Purchase Agreement.

                                (7) "Additional Shares of Common Stock" shall
mean all shares of Common Stock issued (or, pursuant to Subsection 1.05(A)(iii),
deemed to be issued) by the Company after the Original Issue Date, other than:

                                        (a) up to 2,347,418 shares of the
        Company's Common Stock (appropriately adjusted to take account of any
        stock split, stock dividend, combination of shares or the like) to be
        issued upon conversion of the Company's Series B Convertible Preferred
        Stock, par value $0.001 per share ("Series B Preferred Stock"), assuming
        conversion of all of the outstanding shares of the Series B Preferred
        Stock of Novatel Wireless Technologies Ltd. ("NWT") into shares of the
        Series B Preferred Stock;

                                        (b) up to 4,980,444 shares of the
        Company's Common Stock (appropriately adjusted to take account of any
        stock split, stock dividend, combination of shares or the like) to be
        issued upon conversion of shares of the Company's Series A Convertible
        Preferred Stock, par value $0.001 per share ("Series A Preferred
        Stock"), assuming conversion of all of the outstanding shares of the
        Series A Preferred Stock of NWT into shares of the Series A Convertible
        Preferred Stock of the Company;

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                                        (c) up to 2,110,176 shares of the
        Company's Common Stock to be issued upon exercise of warrants to
        purchase the Company's Common Stock granted by the Company;

                                        (d) up to 330,105 shares of the
        Company's Common Stock to be issued upon exchange of shares of the
        exchangeable common stock of NWT issued upon exercise of warrants to
        purchase such shares;

                                        (e) any minimum number of shares of
        capital stock required by law to be issued to directors of the Company;

                                        (f) up to 796,056 shares of the
        Company's Common Stock (appropriately adjusted to take account of any
        stock split, stock dividend, combination of shares or the like), or such
        higher number of shares as is recommended by the Compensation Committee
        of the Company's Board of Directors and approved by the Company's Board
        of Directors, of Common Stock (or related options) issued or issuable to
        officers, directors or employees of, or consultants to, the Company
        pursuant to a stock purchase or option or warrant plan or other similar
        arrangement approved by the Board of Directors;

                                        (g) any shares of the Company's
        Preferred Stock, par value $0.001 per share, issued upon the conversion
        of the amounts outstanding under the Convertible Debentures in
        accordance with the terms thereof, and any shares of the Company's
        Common Stock issued upon conversion of such shares of Preferred Stock in
        accordance with the terms thereof;

                                        (h) any shares of capital stock of the
        Company, not to exceed one-half of one percent of the total issued and
        outstanding capital stock of the Company on an "as converted to Common
        Stock" basis, the issuance of which is approved by vote of a majority of
        the Board of Directors of the Company, including the affirmative vote of
        a majority of the directors designated for election by the holders of
        the Series A and Series B Preferred Stock; and

                                        (i) not more than ten shares of capital
        stock of the Company on an "as converted to Common Stock" basis, the
        issuance of which resulted from mathematical or other error or
        inadvertence, provided that the transaction in which such shares were
        issued was approved at the time by vote of a majority of the Board of
        Directors of the Company, including the affirmative vote of a majority
        of the directors designated for election by the holders of the Company's
        Series A and Series B Preferred Stock.

                (ii) No Adjustment to Warrant Exercise Price. No adjustment to
the Warrant Exercise Price shall be made unless the consideration per share for
an Additional Share of Common Stock issued or deemed to be issued by the Company
is less than the Warrant Exercise Price in effect on the date of, and
immediately prior to, the issue of such Additional Share of Common Stock.

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                (iii) Issue of Securities Deemed Issue of Additional Shares of
Common Stock.

                        (1) Options and Convertible Securities. In the event the
        Company at any time or from time to time after the Original Issue Date
        shall issue any Options or Convertible Securities or shall fix a record
        date for the determination of holders of any class of securities
        entitled to receive any such Options or Convertible Securities, then the
        maximum number of shares (as set forth in the instrument relating
        thereto without regard to any provisions contained therein for a
        subsequent adjustment of such number) of Common Stock issuable upon the
        exercise of such Options or, in the case of Convertible Securities and
        Options therefor, the conversion or exchange of such Convertible
        Securities, shall be deemed to be Additional Shares of Common Stock
        issued as of the time of such issue or, in case such a record date shall
        have been fixed, as of the close of business (Eastern Standard Time or
        Eastern Daylight Savings Time, if applicable) on such record date,
        provided that Additional Shares of Common Stock shall not be deemed to
        have been issued unless the consideration per share (determined pursuant
        to Subsection 1.05(A)(v) hereof) of such Additional Shares of Common
        Stock would be less than the Warrant Exercise Price in effect on the
        date of and immediately prior to such issue, or such record date, as the
        case may be, and provided further that in any such case in which
        Additional Shares of Common Stock are deemed to be issued:

                                (a) no further adjustment in the Warrant
                Exercise Price shall be made upon the subsequent issue of
                Convertible Securities or shares of Common Stock upon the
                exercise of such Options or conversion or exchange of such
                Convertible Securities;

                                (b) if such Options or Convertible Securities by
                their terms provide, with the passage of time or otherwise, for
                any increase in the Consideration as defined in Subsection
                1,05(A)(v) payable to the Company, or decrease in the number of
                shares of Common Stock issuable, upon the exercise, conversion
                or exchange thereof, the Warrant Exercise Price computed upon
                the original issue thereof (or upon the occurrence of a record
                date with respect thereto), and any subsequent adjustments based
                thereon, shall, upon any such increase or decrease becoming
                effective, be recomputed to reflect such increase or decrease
                insofar as it affects such Options or the rights of conversion
                or exchange under such Convertible Securities;

                                (c) upon the expiration of any such Options or
                any rights of conversion or exchange under such Convertible
                Securities which shall not have been exercised, the Warrant
                Exercise Price computed upon the original issue thereof (or upon
                the occurrence of a record date with respect thereto), and any
                subsequent adjustments based thereon, shall, upon such
                expiration, be recomputed as if:

                                        (i) In the case of Convertible
                Securities or Options for Common Stock the only Additional
                Shares of Common Stock issued were the shares of Common Stock,
                if any, actually issued upon the exercise

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                of such Options or the conversion or exchange of such
                Convertible Securities and the consideration received therefor
                was the consideration actually received by the Company for the
                issue of all such Options, whether or not exercised, plus the
                consideration actually received by the Company upon such
                exercise, or for the issue of all such Convertible Securities
                which were actually converted or exchanged, plus the additional
                consideration, if any, actually received by the Company upon
                such conversion or exchange; and

                                        (ii) in the case of Options for
                Convertible Securities only the Convertible Securities, if any,
                actually issued upon the exercise thereof were issued at the
                time of issue of such Options, and the consideration received by
                the Company for the Additional Shares of Common Stock deemed to
                have been then issued was the consideration actually received by
                the Company for the issue of all such Options, whether or not
                exercised, plus the consideration deemed to have been received
                by the Company (determined pursuant to Subsection 1.05(A)(v))
                upon the issue of the Convertible Securities with respect to
                which such Options were actually exercised;

                        (d) no readjustment pursuant to clause (b) or (c) above
                shall have the effect of increasing the Warrant Exercise Price
                to an amount which exceeds the lower of (i) the Warrant Exercise
                Price on the original adjustment date, or (ii) the Warrant
                Exercise Price that would have resulted from any issuance of
                Additional Shares of Common Stock between the original
                adjustment date and such readjustment date;

                        (e) in the case of any Options which expire by their
                terms not more than thirty days after the date of issue thereof,
                no adjustment of the Warrant Exercise Price shall be made until
                the expiration or exercise of all such Options, whereupon such
                adjustment shall be made in the same manner provided in clause
                (c) above; and

                        (f) if such record date shall have been fixed and such
                options or Convertible Securities are not issued on the date
                fixed therefor, the adjustment previously made in the Warrant
                Exercise Price which became effective on such record date shall
                be canceled as of 8:00 P.M. Eastern Standard Time (or Eastern
                Daylight Savings Time if applicable) on such record date, and
                thereafter the Warrant Exercise Price shall be adjusted pursuant
                to this Subsection 1.05(A)(iii) as of the actual date of their
                issuance.

                (2) Stock Dividends, Stock Distributions and Subdivisions. In
the event the Company at any time or from time to time after the Original Issue
Date shall declare or pay any dividend or make any other distribution on the
Common Stock payable in Common Stock or effect a subdivision of the outstanding
shares of Common Stock (by reclassification or otherwise than by payment of a
dividend in Common Stock), then and in any such event, Additional Shares of
Common Stock shall be deemed to have been issued:

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                                (a) in the case of any such dividend or
                        distribution, immediately after 8:00 P.M. (Eastern
                        Standard Time or Eastern Daylight Savings Time, if
                        applicable) on the record date for the determination of
                        holders of any class of securities entitled to receive
                        such dividend or distribution, or

                                (b) in the case of any such subdivision, at 8:00
                        P.M. (Eastern Standard Time or Eastern Daylight Savings
                        Time, if applicable) on the date immediately prior to
                        the date upon which such corporate action becomes
                        effective.

                        If such record date shall have been fixed and no part of
                        such dividend shall have been paid on the date fixed
                        therefor, the adjustment previously made in the Warrant
                        Exercise Price which became effective on such record
                        date shall be canceled as of 8:00 P.M. (Eastern Standard
                        Time or Eastern Daylight Savings time, if applicable) on
                        such record date, and thereafter the Warrant Exercise
                        Price shall be adjusted pursuant to this Section
                        1.05(A)(iii) as of the time of actual payment of such
                        dividend.

                        (iv) Adjustment to the Warrant Exercise Price Upon
Issuance of Additional Shares of Common Stock. In the event that at any time or
from time to time after the Original Issue Date, the Company shall issue
Additional Shares of Common Stock (including, without limitation, Additional
Shares of Common Stock deemed to be issued pursuant to Subsection
1.05(A)(iii)(1) but excluding Additional Shares of Common Stock deemed to be
issued pursuant to Subsection 1.05(A)(iii)(2), which event is dealt with in
Subsection 1.05(A)(vi)(1)), without consideration or for a consideration per
share less than the applicable Warrant Exercise Price in effect on the date of
and immediately prior to such issue, then and in such event, such Warrant
Exercise Price shall be reduced concurrently with such issue, to a price equal
to the Consideration Per Share for which such Additional Shares of Common Stock
are issued or deemed to be issued; provided that the applicable Warrant Exercise
Price shall not be so reduced at any time if the amount of such reduction would
be an amount less than $.01, but any such amount shall be carried forward and
reduction with respect thereto made at the time of and together with any
subsequent reduction which, together with such amount and any other amount or
amounts so carried forward, shall aggregate $.01 or more.

                        (v) Determination of Consideration. For purposes of this
Subsection 1.05(A), the consideration (the "Consideration") received or
receivable by the Company for the issue of any Additional Shares of Common Stock
shall be computed as follows:

                        (1) Cash and Property: Such Consideration shall:

                                        (a) insofar as it consists of cash, be
                        computed at the aggregate amounts of cash received by
                        the Company excluding amounts paid or payable for
                        accrued interest or accrued dividends;

                                        (b) insofar as it consists of property
                        other than cash, be computed at the fair value thereof
                        at the time of such issue, as determined in good faith
                        by the Board of Directors; and

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                                        (c) in the event Additional Shares of
                        Common Stock are issued together with other shares or
                        securities or other assets of the Company for
                        consideration which covers both, be the proportion of
                        such consideration so received or receivable computed as
                        provided in Subsections 1.05(A)(v)(1)(a) and
                        1.05(A)(v)(1)(b) above, allocable to such Additional
                        Shares of Common Stock as determined in good faith by
                        the Board of Directors; provided, however, that in the
                        event warrants or other options to purchase shares of
                        Common Stock are issued without consideration or for a
                        nominal consideration contemporaneously with the
                        issuance of debt or preferred stock, or both, then the
                        consideration received by the Company for such debt or
                        preferred stock shall be deemed properly allocated to
                        the issuance of the warrants or options.

                        (2) Additional Shares of Common Stock other than Options
        and Convertible Securities. The Consideration per share (the
        "Consideration Per Share") for the issue of any Additional Shares of
        Common Stock other than Options and Convertible Securities shall be the
        Consideration for the issue of any Additional Shares of Common Stock
        other than Options or Convertible Securities, divided by the total
        number of such Additional Shares of Common Stock issued by the
        Corporation in exchange therefor.

                        (3) Options and Convertible Securities. The
        Consideration per share (also the "Consideration Per Share," as the
        context requires) for Additional Shares of Common Stock deemed to have
        been issued pursuant to Subsection 1.05(A)(iii)(1), relating to Options
        and Convertible Securities, shall be computed by dividing (x) the
        Consideration for the issue of such Options or Convertible Securities,
        plus the aggregate amount of additional Consideration (as set forth in
        the instruments relating thereto, without regard to any provision
        contained therein for a subsequent adjustment of such consideration)
        payable to the Company upon the exercise of such Options or the
        conversion or exchange of such Convertible Securities, or in the case of
        Options for Convertible Securities, the exercise of such Options for
        Convertible Securities and the conversion or exchange of such
        Convertible Securities, by (y) the number of shares of Common Stock (as
        set forth in the instruments relating thereto, without regard to any
        provision contained therein for a subsequent adjustment of such number)
        issuable upon the exercise of such Options or the conversion or exchange
        of such Convertible Securities.

                (vi) Adjustment of the Warrant Exercise Price for Dividends,
Distributions, Subdivisions, Combinations or Consolidations of Common Stock.

                        (1) Stock Dividends, Distributions or Subdivisions. In
        the event the Company shall be deemed to have issued Additional Shares
        of Common Stock pursuant to Subsection 1.05(A)(iii)(2) in a stock
        dividend, stock distribution or subdivision, the Warrant Exercise Price
        in effect immediately before such deemed issue shall, concurrently with
        the effectiveness of such deemed issue, be proportionately decreased.

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                        (2) Combinations or Consolidations. In the event the
        outstanding shares of Common Stock shall be combined or consolidated, by
        reclassification or otherwise, into a lesser number of shares of Common
        Stock, the Warrant Exercise Price in effect immediately prior to such
        combination or consolidation shall, concurrently with the effectiveness
        of such combination or consolidation, be proportionately increased.

                (B) Adjustments for Certain Dividends and Distributions. In the
event that at any time or from time to time after the Original Issue Date the
Company shall make or issue, or fix a record date for the determination of
holders of Common Stock entitled to receive, a dividend or other distribution
payable in securities of the Company other than shares of Common Stock, then and
in each such event provision shall be made so that the holders of Stock Purchase
Warrants shall receive upon exercise thereof in addition to the number of shares
of Common Stock receivable thereupon, the amount of securities of the Company
that they would have received had their Stock Purchase Warrants been exercised
for Common Stock on the date of such event and had they thereafter, during the
period from the date of such event to and including the exercise date, retained
such securities receivable by them as aforesaid during such period, giving
application during such period to all adjustments called for herein.

                (C) Adjustment for Reclassification, Exchange, or Substitution.
In the event that at any time or from time to time after the Original Issue
Date, the Common Stock issuable upon the exercise of this Warrant shall be
changed into the same or a different number of shares of any class or classes of
stock, whether by capital reorganization, reclassification, or otherwise (other
than a subdivision or combination of shares or stock dividend provided for
above, or a merger, consolidation, or sale of assets provided for below), then
and in each such event the registered holder of this Warrant shall have the
right thereafter to exercise this Warrant for the kind and amount of shares of
stock and other securities and property receivable upon such reorganization,
reclassification, or other change, by holders of the number of shares of Common
Stock into which such Warrant might have been exercisable for immediately prior
to such reorganization, reclassification, or change, all subject to further
adjustment as provided herein.

                (D) Adjustment for Merger, Consolidation or Sale of Assets. In
the event that at any time or from time to time after the Original Issue Date,
the Company shall sell all or substantially all of its assets or merge or
consolidate with or into another entity, this Warrant shall thereafter be
exercisable for the kind and amount of shares of stock or other securities or
property to which a holder of the number of shares of Common Stock of the
Company deliverable upon exercise of this Warrant would have been entitled to
receive upon such consolidation, merger or sale; and, in such case, appropriate
adjustment (as determined in good faith by the Board of Directors) shall be made
in the application of the provisions in this Section 1.05 with respect to the
rights and interest thereafter of the registered holders of the Stock Purchase
Warrants, to the end that the provisions set forth in this Section 1.05
(including provisions with respect to changes in and other adjustments of the
Warrant Exercise Price) shall thereafter be applicable, as nearly as reasonably
may be, in relation to any shares of stock or other property thereafter
deliverable upon the exercise of this Warrant.

                (E) Adjustment upon Conversion of Amounts Due under Debenture.
In the event that at any time or from time to time after the Original Issue
Date, the registered holder

<PAGE>

elects to convert all of the principal amount and interest thereon then
outstanding under the Debenture, dated as of the date of this Warrant, issued
and sold by the Company to the registered holder pursuant to the Purchase
Agreement (the "Debenture") into shares of Series A Convertible Preferred Stock,
par value $.001 per share, of the Company in accordance with the terms of the
Debenture, as the same may be amended from time to time, the number of
Exercisable Shares hereunder shall be reduced by 50%.

                (F) No Impairment. The Company shall not, by amendment of its
Certificate of Incorporation or By-Laws or through any reorganization, transfer
of-assets, consolidation, merger, dissolution, issue or sale of securities or
any other voluntary action, including, without limitation, voluntary bankruptcy
proceedings, avoid or seek to avoid the observance or performance of any of the
terms to be observed or performed hereunder by the Company but shall at all
times in good faith assist in the carrying out of all the provisions of this
Section 1.05 and in the taking of all such action as may be necessary or
appropriate on order to protect the rights of the registered holder of this
Warrant against impairment.

                (G) Notice of Adjustment of the Warrant Exercise Price or Number
of Exercisable Shares. Upon the occurrence of each adjustment, readjustment or
other change relating to the Warrant Exercise Price or in the number of
Exercisable Shares, then, and in each such case, the Company at its expense
shall give written notice thereof, by first class mail, postage prepaid,
addressed to the registered holder at the address of such registered holder as
shown on the books of the Company, which notice shall state the Warrant Exercise
Price resulting from such adjustment and the increase or decrease in the number
of Exercisable Shares (or other denominations of securities) purchasable at the
Warrant Exercise Price upon the exercise of this Warrant setting forth in
reasonable detail the method of calculation and the facts upon which such
calculation is based.

                (H) Notice. In case at any time: (1) the Company shall pay any
dividend or make any distribution (other than regular cash dividends from
earnings or earned surplus paid at an established rate) to the holders of its
Common Stock; (2) the Company shall offer for subscription pro rata to the
holders of its Common Stock any additional shares of stock of any class or other
rights; (3) there shall be any capital reorganization or reclassification of the
capital stock of the Company, or consolidation or merger of the Company with or
sale of all or substantially all of its assets to another corporation; or (4)
there shall be a voluntary or involuntary dissolution, liquidation or winding up
of the Company; then, in any one or more of such cases, the Company shall give
written notice, by first class mail, postage prepaid, addressed to the
registered holder at the address of such registered holder as shown on the books
of the Company of the date on which (a) the books of the Company shall close or
a record date shall be fixed for determining the shareholders entitled to such
dividend, distribution or subscription rights, or (b) such reorganization,
reclassification, consolidation, merger, sale, dissolution, liquidation or
winding up shall take place, as the case may be. Such notice shall also provide
reasonable details of the proposed transaction and specify the date as of which
the holders of Common Stock of record shall participate in such dividend,
distribution or subscription rights, or shall be entitled to exchange their
Common Stock for securities or other property deliverable upon such
reorganization, reclassification, consolidation, merger, sale, dissolution,
liquidation or winding up, as the case may be. Such written notice shall be
given at least 20 days prior to the

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action in question and not less than 20 days prior to the record date or the
date on which the Company's transfer books are closed in respect thereto.

                (I) Voting Rights. This Warrant shall not entitle the registered
holder to any voting rights or any other rights as a stockholder of the Company
but upon presentation of this Warrant with the subscription form annexed duly
executed and the tender of payment of the Warrant Exercise Price at the office
of the Company pursuant to the provisions of this Warrant the registered holder
shall forthwith be deemed a stockholder of the Company in respect of the shares
of Common Stock so subscribed and paid for.

                (J) No Change Necessary. The form of this Warrant need not be
changed because of any adjustment in the Warrant Exercise Price or in the number
of shares of Common Stock issuable upon its exercise. A Warrant issued after any
adjustment on any partial exercise or upon replacement may continue to express
the same Warrant Exercise Price and the same number of shares of Common Stock
(appropriately reduced in the case of partial exercise) as are stated on this
Warrant as initially issued, and that Warrant Exercise Price and that number of
shares shall be considered to have been so changed as of the close of business
on the date of adjustment.

        Section 2. Covenant of the Company. All shares of Common Stock which may
be issued upon the exercise of the rights represented by this Warrant, shall,
upon issuance, be duly authorized, validly issued, fully paid and non-assessable
and free from all taxes, liens and charges with respect to the issue thereof.

        Section 3. Fractional Shares. No fractional shares or scrip representing
fractional shares shall be issued upon exercise of this Warrant. If, upon
exercise of this Warrant as an entirety, the registered holder would, except for
the provisions of this Section 3, be entitled to receive a fractional share of
Common Stock, then the Company shall pay in cash to such registered holder an
amount equal to such fractional share multiplied by the fair market value of one
share of Common Stock (as reasonably determined by the Board of Directors of
the Company) on the date of such exercise.

        Section 4. Substitution. In case this Warrant shall be mutilated, lost,
stolen or destroyed, the Company will issue a new Warrant of like tenor and
denomination and deliver the same (a) in exchange and substitution for and
upon surrender and cancellation of any mutilated Warrant, or (b) in lieu of any
Warrant lost, stolen or destroyed, upon receipt of evidence satisfactory to the
Company of the loss, theft, or destruction of such Warrant (including a
reasonably detailed affidavit with respect to the circumstances of any loss,
theft or destruction), and of indemnity (or, in the case of the initial holder
or any other institutional holder, an indemnity agreement) satisfactory to the
Company.

        Section 5. Transfer Restrictions. This Warrant or the shares of Common
Stock into which this Warrant is exercisable shall not be sold, transferred,
pledged or hypothecated unless the proposed disposition is the subject of a
currently effective registration statement under the Securities Act of 1933, as
amended (the "Securities Act"), or unless the Company has received an opinion of
counsel reasonably satisfactory in form and scope to the Company that such
registration is not required except that such restrictions shall not apply to
any transfer of this

<PAGE>

Warrant or the shares of Common Stock into which this Warrant is exercisable:
(i) to a partner or other affiliate of the registered holder, including any
entity of which the registered holder or a related entity is a General Partner;
(ii) by gift or bequest or through inheritance to, or for the benefit of, any
member or members of the registered holder's immediate family; (iii) by a
registered holder to a trust (a) in respect of which the registered holder
serves as trustee, provided that the trust instrument governing such trust shall
provide that the registered holder, as trustee, shall retain sole and exclusive
control over the voting and disposition of such Warrant until the termination of
this Warrant or (b) for the benefit solely of any member or members of the
registered holder's immediate family; and (iv) pursuant to any underwritten
public offering of Common Stock pursuant to an effective registration statement
under the Securities Act.

        Section 6. Remedies. The Company stipulates that the remedies at law of
the registered holder of this Warrant in the event of any default or threatened
default by the Company in the performance of or compliance with any of the terms
of this Warrant are not and will not be adequate, and that such terms may be
specifically enforced by a decree for the specific performance of any agreement
contained herein or by an injunction against a violation of any of the terms
hereof or otherwise.

        Section 7. Taxes. The Company shall pay any taxes or other charges that
may be imposed in respect of the issuance and delivery of the Warrant or any
shares of Common Stock or other property upon exercise hereof.

        Section 8. Governing Law. This Warrant shall be deemed a contract made
under the laws of the State of Delaware and its provisions and the rights and
obligations of the parties hereunder shall be governed by, and construed and
enforced in accordance with, the substantive laws of the State of Delaware,
without regard to its principles of conflicts of laws.

        Section 9. Miscellaneous. This Warrant and any term hereof may be
changed, waived, discharged or terminated only by an instrument in writing
signed by the party against which enforcement of such change, waiver, discharge
or termination is sought.

                                      ****

<PAGE>

        IN WITNESS WHEREOF, the Company has caused this Common Stock Purchase
Warrant to be signed by its Chief Executive Officer thereunto duly authorized
and its corporate seal to be hereunto affixed and attested by its Secretary this
___ day of ________, 1999.

ATTEST:                                     NOVATEL WIRELESS, INC.

By: _______________________________         By: ________________________________
Name: Roger Hartman                         Name: Robert Corey
Its: Secretary                              Its: Chief Executive Officer

<PAGE>

                                SUBSCRIPTION FORM

        The undersigned, the registered holder of the within Common Stock
Purchase Warrant, hereby irrevocably elects to exercise the purchase right
represented by such Warrant for, and to purchase thereunder, ______ shares of
Common Stock of Novatel Wireless, Inc., and herewith makes payment of $ ______
therefor and requests that the certificates representing such shares be issued
in the name of and delivered to:

__________________________________________________

__________________________________________________

__________________________________________________

and if such shares shall not include all of the shares issuable under this
Warrant, that a new Warrant of like tenor and date be delivered to the
undersigned for the shares not issued.

Dated: ____________________________         ___________________________________
                                            Signature

<PAGE>

                               FORM OF ASSIGNMENT

For value received the undersigned hereby sells, assigns and transfers unto

________________________________ whose address is _______________________

________________________________________________________________________________

____________________________________________________________________, the within

Common Stock Purchase Warrant with respect to ________ shares purchasable

thereby, and does hereby irrevocably constitute and appoint ____________________

attorney to transfer such Warrant on the books of the within named corporation

with full power of substitution in the premises.

Dated: _____________________________________

In the presence of:

________________________                       _________________________
                                                Signature<PAGE>

                                                                     EXHIBIT 4.4

THE WARRANT EVIDENCED HEREBY, AND THE SHARES OF COMMON STOCK ISSUABLE HEREUNDER,
HAVE BEEN AND WILL BE ISSUED WITHOUT REGISTRATION UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR THE APPLICABLE SECURITIES LAWS OF ANY STATE. SUCH
SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO DISTRIBUTION
OR RESALE, AND SHALL NOT BE SOLD, TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS
THE PROPOSED DISPOSITION IS THE SUBJECT OF A CURRENTLY EFFECTIVE REGISTRATION
STATEMENT UNDER SAID ACT AND UNDER APPLICABLE STATE SECURITIES LAWS OR UNLESS
THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL, IN FORM AND SUBSTANCE REASONABLY
SATISFACTORY TO THE COMPANY, TO THE EFFECT THAT SUCH REGISTRATION IS NOT
REQUIRED UNDER SAID ACT AND SUCH STATE SECURITIES LAWS IN CONNECTION WITH SUCH
DISPOSITION.

                             NOVATEL WIRELESS, INC.

                          COMMON STOCK PURCHASE WARRANT

                             Void After ______, 2005

                    This Stock Purchase Warrant is Issued to

                      [INSERT NAME AND ADDRESS OF GRANTEE]

(hereinafter called the "initial registered holder" or the "registered holder,"
which term shall include its successors and assigns) by Novatel Wireless, Inc.,
a Delaware corporation (hereinafter referred to as the "Company"). The holder of
this common stock purchase warrant ("Warrant") is entitled to certain of the
benefits conferred by that certain Series D Convertible Preferred Stock and
Warrant Purchase Agreement dated as of _______, 2000 (the "Purchase Agreement"),
and that certain Amended and Restated Investors' Rights Agreement dated as of
_______, 2000 (the "Investors' Rights Agreement"), copies of which are on file
at the office of the Company at the address specified below. This Warrant may be
transferred by the registered holder only in accordance with the provisions of
Section 1.06 and Section 5 hereof. A copy of the Purchase Agreement and the
Investors' Rights Agreement will be furnished to any subsequent registered
holder hereof upon written request. The Investors' Rights Agreement contains an
undertaking by the Company under certain circumstances to effect registration
and qualification under federal and state securities laws of, or to take other
action with respect to, the shares of common stock, par value $0.001, of the
Company ("Common Stock") issuable on exercise of this Warrant.

<PAGE>

        Section 1. The Warrant.

        1.01. Manner of Exercise. For value received and subject to the terms
and conditions hereinafter set forth, the registered holder hereof is entitled,
upon surrender of this Warrant (with the subscription form annexed hereto duly
executed) at the office of the Company at 9360 Towne Centre Drive, Suite 110,
San Diego, CA 92121, or such other office of which the Company shall notify the
registered holder hereof in writing, to purchase from the Company _____ (_____)
fully paid and nonassessable shares ("Initial Exercisable Shares" and, as may be
adjusted from time to time as hereinafter provided, "Exercisable Shares") of
Common Stock for an initial exercise price of $17.25 per share as may be
adjusted from time to time as provided below (the "Warrant Exercise Price").
This Warrant may be exercised in full or in part from time to time when
exercisable. As promptly as practicable after surrender of this Warrant and
receipt of payment of the Warrant Exercise Price, the Company shall issue and
deliver to the registered holder a certificate or certificates for shares of
Common Stock, in certificates of such denominations and in such names as the
registered holder hereof may specify, together with any other stock, securities
or property which such holder may be entitled to receive pursuant to Sections
1.07(B), 1.07(C) or 1.07(D) hereof. In the case of the purchase of less than all
the shares purchasable under this Warrant, the Company shall cancel this Warrant
upon the surrender hereof and shall execute and deliver a substitute Warrant of
like tenor for the balance of the shares purchasable hereunder.

        1.02. Date of Exercisability. This Warrant may be exercised by its
registered holder on or after the earliest to occur of (i) the first anniversary
of the Closing (as defined in the Purchase Agreement) and prior to termination,
(ii) the closing of a firm commitment public offering pursuant to an effective
registration statement on Form S-1 under the Securities Act of 1933, as amended,
at a public offering price (prior to underwriting discounts and commissions)
equal to or exceeding $17.25 per share of Common Stock (as adjusted for any
stock dividends, combinations or splits with respect to such shares) and in
which the proceeds to the Company from such offering aggregate not less than $35
million (prior to underwriting discounts and commissions), or (iii) the
commencement of the 30-day period prior to the consummation of a transaction
effecting (a) the sale of all or substantially all the assets of the Company;
(b) the sale (other than in connection with financing arrangements) of capital
stock or other securities representing a majority of the total voting power of
shares of stock entitled to vote in the election of directors; or (c) a merger
consolidation or tender offer in which the Company is not the surviving entity
(hereinafter, a "Change in Control"). This Warrant shall expire at 8:00 P.M.
(Eastern Standard Time) on _______, 2005 and shall be void thereafter.

        1.03. Payment of Exercise Price; Net Issue Exercise

                A. The Warrant Exercise Price may be paid by cash, check, wire
transfer or by the surrender to the Company of promissory notes or other
instruments representing indebtedness of the Company to the registered holder.

                B. In lieu of exercising this Warrant in the manner provided
above in Section 1.03(A), the registered holder may elect to receive shares
equal to the then fair market value of this Warrant (or the portion thereof
being canceled) by surrender of this Warrant at the

                                       2
<PAGE>

principal office of the Company together with notice of such election on the
subscription form appended hereto duly executed by such registered holder or
such registered holder's duly authorized attorney, in which event the Company
shall issue to the registered holder a number of shares of Common Stock computed
using the following formula:

               X =  Y (A - R)
                    ---------
                        A

Where          X = The number of shares of Common Stock to be issued to the
                   registered holder.

               Y = The number of shares of Common Stock purchasable under this
                   Warrant (at the date of such calculation).

               A = The fair market value of one share of Common Stock (at the
                   date of such calculation).

               B = The Warrant Exercise Price (as adjusted to the date of such
                   calculation).

                        (i) For purposes of this Section 1.03(B), the fair
market value of one share of Common Stock on the date of calculation shall mean:

                                (A) if the exercise is in connection with an
initial public offering of shares of the Company's Common Stock, and if the
Company's Registration Statement relating to such public offering has been
declared effective by the Securities and Exchange Commission, then the fair
market value per share of Common Stock shall be the initial "Price to Public"
specified in the final prospectus with respect to the offering;

                                (B) if this Warrant is exercised after, and not
in connection with, the close of the Company's initial public offering, and if
the Company's Common Stock is then traded on a securities exchange or The Nasdaq
Stock Market or actively traded over-the-counter:

                                        (1) if the Company's Common Stock is
traded on a securities exchange or The Nasdaq Stock Market, the fair market
value shall be deemed to be the average of the closing price per share over the
twenty (20) day period ending three days before the date of calculation; or

                                        (2) if the Company's Common Stock is
actively traded over-the-counter, the fair market value per share of the
Company's common stock shall be deemed to be the average of the closing bid or
sales price (whichever is applicable) over the thirty (30) day period ending
three days before the date of calculation; or

                                (C) if neither (A) nor (B) is applicable, the
fair market value per share of the Company's Common Stock shall be the amount
determined in good faith by the Company's Board of Directors, unless the Company
is, at such time, within the thirty (30) consecutive day period immediately
preceding the consummation of a Change in Control in which case the fair market
value per share of Common Stock shall be deemed to be the value of

                                       3
<PAGE>

the consideration per share received by the holders of such stock pursuant to
such consummation of a Change in Control.

        1.04. During the period within which the rights represented by this
Warrant may be exercised, the Company shall at all times have authorized and
reserved for the purpose of issue upon exercise of the rights evidenced hereby,
a sufficient number of shares of its Common Stock to provide for the exercise of
such rights. Upon surrender for exercise, this Warrant shall be canceled and
shall not be reissued; provided, however, that upon the partial exercise hereof
a substitute Warrant representing the rights to subscribe for and purchase any
such unexercised portion hereof shall be issued.

        1.05. Subject to compliance with applicable securities laws, this
Warrant may be subdivided into one or more common stock purchase warrants
entitling the registered holder to purchase shares of Common Stock in multiples
of one or more whole shares, upon surrender of this Warrant by the registered
holder for such purpose at the office of the Company,

        1.06. The Company shall maintain at its office (or at such other office
or agency of the Company as it may from time to time designate in writing to the
registered holder hereof), a register containing the names and addresses of the
holders of all the Company's common stock purchase warrants. The registered
holder of such a warrant shall be the person in whose name such warrant is
originally issued and registered, unless a subsequent holder shall have
presented to the Company such warrant, duly assigned to him, for inspection and
a written notice of his acquisition of such warrant and designating in writing
the address of such holder, in which case such subsequent holder of the warrant
shall become a subsequent registered holder. Any registered holder of this
Warrant may change his address as shown on such register by written notice to
the Company requesting such change. Any written notice required or permitted to
be given to the registered holder of this Warrant shall be mailed, by registered
or certified mail, to such registered holder at his address as shown on such
register.

        1.07. The rights of the registered holder hereof shall be subject to the
following terms and conditions:

                (A) Adjustment to the Warrant Exercise Price.

                        (i) Special Definitions. For purposes of this Subsection
1.07, the following definitions shall apply:

                              (1) "Option" shall mean rights, options or
        warrants to subscribe for, purchase or otherwise acquire either Common
        Stock or Convertible Securities.

                              (2) "Warrant Exercise Price" shall mean initially
        $17.25 per share of Common Stock and shall be subject to adjustment as
        hereinafter provided.

                              (3) "Original Issue Date" shall mean the date on
        which this Warrant was issued.

                              (4) "Stock Purchase Warrants" shall mean the
        Warrants sold by the Company pursuant to the Purchase Agreement.

                                       4
<PAGE>

                              (5) "Series D Purchase Price" shall mean $17.25
        per share of the Company's Series D Convertible Preferred Stock, par
        value $0.001 per share ("Exercise D Preferred Stock").

                              (6) "Converted Securities" shall mean any
        evidences of indebtedness, shares of capital stock (other than Common
        Stock) or other securities directly or indirectly convertible into or
        exchangeable for Common Stock.

                              (7) "Additional Shares of Common Stock" shall mean
        any shares of Common Stock issued (or, pursuant to Subsection
        1.07(A)(iii), deemed to be issued) by the Company after the Original
        Issue Date, other than:

                                        (a) shares of Common Stock issuable upon
        the exercise or conversion of securities of the Company outstanding as
        of the Original Issue Date;

                                        (b) shares of Common Stock issuable upon
        conversion of up to 2,263,857 shares of Series A Preferred Stock and up
        to 1,251,798 shares of Series A Preferred Stock (appropriately adjusted
        to take account of any stock split, stock dividend, combination of
        shares or the like) to be issued upon exchange of shares of the Series A
        preferred stock of Novatel Wireless Technologies, Ltd. (the "NWT
        Exchangeable Series A");

                                        (c) shares of Common Stock issuable upon
        conversion of up to 2,084,281 shares of Series B Preferred Stock and up
        to 213,614 shares of Series B Preferred Stock (appropriately adjusted to
        take account of any stock split, stock dividend, combination of shares
        or the like) to be issued upon exchange of the shares of the Series B
        preferred stock of NWT (the "NWT Exchangeable Series B");

                                        (d) up to 330,105 shares of Common Stock
        (appropriately adjusted to take account of any stock split, stock
        dividend, combination of shares or the like) to be issued upon exercise
        of warrants issued by NWT to purchase shares of the exchangeable common
        stock of NWT (the "NWT Exchangeable Common");

                                        (e) up to 781,605 shares of Common Stock
        issuable upon exercise of the warrants granted to certain investors
        pursuant to the Series B Stock Purchase Agreement;

                                        (f) up to 1,308,057 shares of Common
        Stock issuable upon exercise of warrants granted to certain investors
        pursuant to that certain Unit Purchase Agreement dated as of June 15,
        1999;

                                        (g) shares of Common Stock issuable upon
        the conversion of up to 3,698,087 shares of the Series C Preferred
        Stock;

                                       5
<PAGE>

                                        (h) up to 716,213 shares of Common Stock
        issuable upon exercise of warrants granted to certain investors pursuant
        to the Series C Stock Purchase Agreement and ancillary transactions;

                                        (i) any issuance of securities for which
        adjustment of the Series C Conversion Price is made pursuant to
        Subsection 3(h);

                                        (j) shares of Common Stock issuable upon
        the conversion of up to 2,600,000 shares of Series D Preferred Stock;

                                        (k) up to 520,000 shares of Common Stock
        issuable upon exercise of warrants granted to certain investors pursuant
        to the Series D Stock Purchase Agreement;

                                        (l) any minimum number of shares of
        capital stock required by law to be issued to directors of the Company;

                                        (m) securities issued or issuable as a
        dividend or distribution on the Preferred Stock;

                                        (n) up to 2,000,000 shares of the Common
        Stock (or related options)(appropriately adjusted to take account of any
        stock split, stock dividend, combination of shares or the like), or such
        higher number of shares (or options) as is recommended by the
        Compensation Committee of the Company's Board of Directors and approved
        by the Company's Board of Directors, issued or issuable to officers,
        directors or employees of, or consultants to, the Company's pursuant to
        a stock purchase or option or warrant plan or other similar arrangement
        approved by the Board of Directors;

                                        (o) securities (or securities issued
        upon the exercise of securities) issued in connection with financing
        arrangements with lending institutions or equipment leasing
        arrangements;

                                        (p) any shares of capital stock of the
        Company, not to exceed one-half of one percent of the total issued and
        outstanding capital stock of the Company on an "as converted to Common
        Stock" basis, the issuance of which is approved by vote of a majority of
        the Board of Directors of the Company, including the affirmative vote of
        a majority of the directors designated for election by the holders of
        the Series D Preferred Stock; and

                                        (q) not more than ten shares of capital
        stock of the Company on an "as converted to Common Stock" basis, the
        issuance of which resulted from mathematical or other error or
        inadvertence, provided that the transaction in which such shares were
        issued was approved at the time by vote of a majority of the Board of
        Directors of the Company, including the affirmative vote of a majority
        of the directors designated for election by the holders of the Series D
        Preferred Stock.

                                       6
<PAGE>

                (ii) No Adjustment to Warrant Exercise Price. Except as set
forth in Subsection 1.07(A)(vi), no adjustment to the Warrant Exercise Price
shall be made unless the consideration per share for an Additional Share of
Common Stock issued or deemed to be issued by the Company is less than the
Series D Purchase Price.

                (iii) Issue of Securities Deemed Issue of Additional Shares of
Common Stock.

                      (1) Options an Convertible Securities. In the event the
        Company at any time or from time to time after the Original Issue Date
        shall issue any Options or Convertible Securities or shall fix a record
        date for the determination of holders of any class of securities
        entitled to receive any such Options or Convertible Securities, then the
        maximum number of shares (as set forth in the instrument relating
        thereto without regard to any provisions contained therein for a
        subsequent adjustment of such number) of Common Stock issuable upon the
        exercise of such Options or, in the case of Convertible Securities and
        Options therefor, the conversion or exchange of such Convertible
        Securities, shall be deemed to be Additional Shares of Common Stock
        issued as of the time of such issue or, in case such a record date shall
        have been fixed, as of the close of business (Eastern Standard Time or
        Eastern Daylight Savings Time, if applicable) on such record date,
        provided that Additional Shares of Common Stock shall not be deemed to
        have been issued unless the consideration per share (determined pursuant
        to Subsection 1.07(A)(v) hereof) of such Additional Shares of Common
        Stock would be less than the Series D Purchase Price in effect on the
        date of and immediately prior to such issue, or such record date, as the
        case may be, and provided further that in any such case in which
        Additional Shares of Common Stock are deemed to be issued:

                          (a) no further adjustment in the Warrant Exercise
                Price shall be made upon the subsequent issue of Convertible
                Securities or shares of Common Stock upon the exercise of such
                Options or conversion or exchange of such Convertible
                Securities;

                          (b) if such Options or Convertible Securities by their
                terms provide, with the passage of time or otherwise, for any
                increase in the Consideration (as defined in Subsection
                1.07(A)(v)) payable to the Company, or decrease in the number of
                shares of Common Stock or Convertible Securities issuable, upon
                the exercise, conversion or exchange thereof, the Warrant
                Exercise Price computed upon the original issue thereof (or upon
                the occurrence of a record date with respect thereto), and any
                subsequent adjustments based thereon, shall, upon any such
                increase or decrease becoming effective, be recomputed to
                reflect such increase or decrease insofar as it affects such
                Options or the rights of conversion or exchange under such
                Convertible Securities;

                          (c) upon the expiration of any such Options or any
                rights of conversion or exchange under such Convertible
                Securities which shall not have been exercised, the Warrant
                Exercise Price computed upon the original issue thereof (or upon
                the occurrence of a record date with respect thereto), and

                                       7
<PAGE>

                any subsequent adjustments based thereon, shall, upon such
                expiration, be recomputed as if:

                              (i) in the case of Convertible Securities or
                Options for Common Stock, the only Additional Shares of Common
                Stock issued were the shares of Common Stock, if any, actually
                issued upon the exercise of such Options or the conversion or
                exchange of such Convertible Securities and the consideration
                received therefor was the consideration actually received by the
                Company for the issue of all such Options, whether or not
                exercised, plus the consideration actually received by the
                Company upon such exercise, or for the issue of all such
                Convertible Securities which were actually converted or
                exchanged, plus the additional consideration, if any, actually
                received by the Company upon such conversion or exchange; and

                              (ii) in the case of Options for Convertible
                Securities only the Convertible Securities, if any, actually
                issued upon the exercise thereof were issued at the time of
                issue of such Options, and the consideration received by the
                Company for the Additional Shares of Common Stock deemed to have
                been then issued was the consideration actually received by the
                Company for the issue of all such Options, whether or not
                exercised, plus the consideration deemed to have been received
                by the Company (determined pursuant to Subsection 1.07(A)(v))
                upon the issue of the Convertible Securities with respect to
                which such Options were actually exercised;

                        (d) no readjustment pursuant to clause (b) or (c) of
                this Section 1.07(A)(iii) shall have the effect of increasing
                the Warrant Exercise Price to an amount which exceeds the lower
                of (i) the Warrant Exercise Price on the original adjustment
                date, or (ii) the Warrant Exercise Price that would have
                resulted from any issuance of Additional Shares of Common Stock
                between the original adjustment date and such readjustment date;

                        (e) in the case of any Options which expire by their
                teens not more than thirty days after the date of issue thereof,
                no adjustment of the Warrant Exercise Price shall be made until
                the expiration or exercise of all such Options, whereupon such
                adjustment shall be made in the same manner provided in clause
                (c) of this Section 1.07(A)(iii); and

                        (f) if such record date shall have been fixed and such
                Options or Convertible Securities are not issued on the date
                fixed therefor, the adjustment previously made in the Warrant
                Exercise Price which became effective on such record date shall
                be canceled as of 8:00 P.M. Eastern Standard Time (or Eastern
                Daylight Savings Time if applicable) on such record date, and
                thereafter the Warrant Exercise Price shall be adjusted pursuant
                to this Subsection 1.07(A)(iii) as of the actual date of their
                issuance.

                   (2) Stock Dividends, Stock Distributions and Subdivisions. In
        the event the Company at any time or from time to time after the
        Original Issue Date

                                       8
<PAGE>

        shall declare or pay any dividend or make any other distribution on the
        Common Stock payable in Common Stock or effect a subdivision of the
        outstanding shares of Common Stock (by reclassification or otherwise
        than by payment of a dividend in Common Stock), then and in any such
        event, Additional Shares of Common Stock shall be deemed to have been
        issued:

                        (a) in the case of any such dividend or distribution,
                immediately after 8:00 P.M. (Eastern Standard Time or Eastern
                Daylight Savings Time, if applicable) on the record date for the
                determination of holders of any class of securities entitled to
                receive such dividend or distribution, or

                        (b) in the case of any such subdivision, at 8:00 P.M.
                (Eastern Standard Time or Eastern Daylight Savings Time, if
                applicable) on the date immediately prior to the date upon which
                such corporate action becomes effective.

                        If such record date shall have been fixed and no part of
                such dividend shall have been paid on the date fixed therefor,
                the adjustment previously made in the Warrant Exercise Price
                which became effective on such record date shall be canceled as
                of 8:00 P.M. (Eastern Standard Time or Eastern Daylight Savings
                time, if applicable) on such record date, and thereafter the
                Warrant Exercise Price shall be adjusted pursuant to this
                Section 1.07(A)(iii) as of the time of actual payment of such
                dividend.

        Adjustment to the Warrant Exercise rice Upon Issuance of Additional
Shares of Common Stock. In the event that at any time or from time to time after
the Original Issue Date, the Company shall issue Additional Shares of Common
Stock (including, without limitation, Additional Shares of Common Stock deemed
to be issued pursuant to Subsection 1.07(A)(iii)(1), but excluding Additional
Shares of Common Stock deemed to be issued pursuant to Subsection
1.07(A)(iii)(2), which event is dealt with in Subsection 1.07(A)(vi)(1)),
without consideration or for consideration per share less than the Series D
Purchase Price, then and in such event, if the consideration per share for which
such Additional Shares of Common Stock are issued or deemed issued is below
$17.25, the Warrant Exercise Price shall be reduced, concurrently with such
issue, to a price (calculated to the nearest cent) determined by multiplying
$17.25 by a fraction, the numerator of which shall be the number of shares of
Common Stock outstanding immediately prior to such issue plus the number of
shares of Common Stock which the aggregate consideration received by the Company
for the total number of Additional Shares of Common Stock so issued would
purchase at $17.25 per share, and the denominator of which shall be the number
of shares of Common Stock outstanding immediately prior to such issue plus the
number of such Additional Shares of Common Stock so issued. For the purpose of
the above calculation, the number of shares of Common Stock outstanding
immediately prior to such issue shall be calculated on a fully diluted basis, as
if all shares of Series A Preferred Stock (including the NWT Exchangeable Series
A), Series B Preferred Stock (including the NWT Exchangeable Series B), Series C
Preferred Stock (including the Series C Warrant Shares) and Series D Preferred
Stock, the NWT Exchangeable Common, and all Options and Convertible Securities
had been fully converted into, or exercised, or exchanged for shares of Common
Stock immediately prior to such issuance (and the resulting securities fully
converted into shares of

                                       9
<PAGE>

Common Stock, if so convertible) as of such date, but not including in such
calculation any additional shares of Common Stock issuable with respect to
shares of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred
Stock, Series D Preferred Stock, Options Convertible Securities, or other rights
for the purchase of shares of stock or convertible securities, solely as a
result of the adjustment of the Series A Conversion Price, Series B Conversion
Price, Series C Conversion Price or Series D Conversion Price (or other
conversion ratios) pursuant to the Company's Amended and Restated Certificate of
Incorporation resulting from the issuance of the Additional Shares of Common
Stock causing the adjustment in question.

            (iv) Determination of Consideration. For purposes of this Subsection
1.07(A), the consideration (the "Consideration") received or receivable by the
Company for the issue of any Additional Shares of Common Stock shall be computed
as follows:

                (1) Cash and Property: Such Consideration shall:

                        (a) insofar as it consists of cash, be computed at the
                aggregate amounts of cash received by the Company excluding
                amounts paid or payable for accrued interest or accrued
                dividends;

                        (b) insofar as it consists of property other than cash,
                be computed at the fair value thereof at the time of such issue,
                as determined in good faith by the Company's Board of Directors;
                and

                        (c) in the event Additional Shares of Common Stock are
                issued together with other shares or securities or other assets
                of the Company for consideration which covers both, be the
                proportion of such consideration so received or receivable
                computed as provided in Subsections 1.07(A)(v)(1)(a) and
                1.07(A)(v)(1)(b) above, allocable to such Additional Shares of
                Common Stock as determined in good faith by the Company's Board
                of Directors; provided, however, that in the event warrants or
                other options to purchase shares of Common Stock are issued
                without consideration or for a nominal consideration
                contemporaneously with the issuance of debt or preferred stock,
                or both, then the consideration received by the Company for such
                debt or preferred stock shall be deemed properly allocated to
                the issuance of the warrants or options.

                (2) Additional Shares of Common Sock other Options and
        Convertible Securities. The Consideration per share for the issue of any
        Additional Shares of Common Stock other than Options and Convertible
        Securities shall be the Consideration for the issue of any Additional
        Shares of Common Stock other than Options or Convertible Securities,
        divided by the total number of such Additional Shares of Common Stock
        issued by the Company in exchange therefor.

                (3) Options and Convertible Securities. The Consideration per
        share for Additional Shares of Common Stock deemed to have been issued
        pursuant to Subsection 1.07(A)(iii)(1), relating to Options and
        Convertible Securities, shall be computed by dividing (x) the
        Consideration for the issue of such Options or Convertible Securities,
        plus the aggregate amount of additional Consideration (as set forth in
        the

                                       10
<PAGE>

        instruments relating thereto, without regard to any provision contained
        therein for a subsequent adjustment of such Consideration) payable to
        the Company upon the exercise of such Options or the conversion or
        exchange of such Convertible Securities, or in the case of Options for
        Convertible Securities, the exercise of such Options for Convertible
        Securities and the conversion or exchange of such Convertible
        Securities, by (y) the number of shares of Common Stock (as set forth in
        the instruments relating thereto, without regard to any provision
        contained therein for a subsequent adjustment of such number) issuable
        upon the exercise of such Options or the conversion or exchange of such
        Convertible Securities.

                        (v) Adjustment of the Warrant Exercise Price for
Dividends, Distributions, Subdivisions, Combinations or Consolidations of Common
Stock.

                              (1) Stock Dividends, Distributions or
        Subdivisions. In the event the Company shall be deemed to have issued
        Additional Shares of Common Stock pursuant to Subsection 1.07(A)(iii)(2)
        in a stock dividend, stock distribution or subdivision, the Warrant
        Exercise Price in effect immediately before such deemed issue shall,
        concurrently with the effectiveness of such deemed issue, be
        proportionately decreased.

                              (2) Combinations or Consolidations. In the event
        the outstanding shares of Common Stock shall be combined or
        consolidated, by reclassification or otherwise, into a lesser number of
        shares of Common Stock, the Warrant Exercise Price in effect immediately
        prior to such combination or consolidation shall, concurrently with the
        effectiveness of such combination or consolidation, be proportionately
        increased.

                (B) Adjustments for Certain Dividends and Distributions. In the
event that at any time or from time to time after the Original Issue Date the
Company shall make or issue, or fix a record date for the determination of
holders of Common Stock entitled to receive, a dividend or other distribution
payable in securities of the Company other than shares of Common Stock, then and
in each such event provision shall be made so that the holder of this Warrant
shall receive upon exercise thereof in addition to the number of shares of
Common Stock receivable thereupon, the amount of securities of the Company that
they would have received had this Warrant been exercised for Common Stock on the
date of such event and had they thereafter, during the period from the date of
such event to and including the exercise date, retained such securities
receivable by them as aforesaid during such period, giving application during
such period to all adjustments called for herein.

                (C) Adjustment for Reclassification, Exchange, or
Substitution. In the event that at any time or from time to time after the
Original Issue Date, the Common Stock issuable upon the exercise of this Warrant
shall be changed into the same or a different number of shares of any class or
classes of stock, whether by capital reorganization, reclassification, or
otherwise (other than a subdivision or combination of shares or stock dividend
provided for above, or a merger, consolidation, or sale of assets provided for
below), then and in each such event the registered holder of this Warrant shall
have the right thereafter to exercise this Warrant for the kind and amount of
shares of stock and other securities and property receivable upon such

                                       11
<PAGE>

reorganization, reclassification, or other change, by holders of the number of
shares of Common Stock into which such Warrant might have been exercisable
immediately prior to such reorganization, reclassification, or change, all
subject to further adjustment as provided herein.

                (D) Adjustment for Merger, Consolidation or Sale of Assets. In
the event that at any time or from time to time after the Original Issue Date,
the Company shall sell all or substantially all its assets or merge or
consolidate with or into another entity, this Warrant shall thereafter be
exercisable for the kind and amount of shares of stock or other securities or
property which a holder of the number of shares of Common Stock of the Company
assumable upon exercise of this Warrant would have been entitled to receive upon
such consolidation, merger or sale; and, in such case, appropriate adjustment
(as determined in good faith by the Board of Directors) shall be made in the
application of the provisions in this Section 1.07 with respect to the rights
and interest thereafter of the registered holder of this Warrant, to the end
that the provisions set forth in this Section 1.07 (including provisions with
respect to changes in and other adjustments of the Warrant Exercise Price) shall
thereafter be applicable, as nearly as reasonably may be, in relation to any
shares of stock or other property thereafter deliverable upon the exercise of
this Warrant.

                (E) No Impairment. The Company shall not, by amendment of its
Certificate of Incorporation or Bylaws or through any reorganization, transfer
of assets, consolidation, merger, dissolution, issue or sale of securities or
any other voluntary action, including, without limitation, voluntary bankruptcy
proceedings, avoid or seek to avoid the observance or performance of any of the
terms to be observed or performed hereunder by the Company but shall at all
times in good faith assist in the carrying out of all the provisions of this
Section 1.07 and in the taking of all such action as may be necessary or
appropriate on order to protect the rights of the registered holder of this
Warrant against impairment.

                (F) Notice of Adjustment of the Warrant Exercise Price or Number
of Exercisable Shares. Upon the occurrence of each adjustment, readjustment or
other change relating to the Warrant Exercise Price or in the number of
Exercisable Shares, then, and in each such case, the Company at its expense
shall give written notice thereof, by first class mail, postage prepaid,
addressed to the registered holder at the address of such registered holder as
shown on the books of the Company, which notice shall state the Warrant Exercise
Price resulting from such adjustment and the increase or decrease in the number
of Exercisable Shares (or other denominations of securities) purchasable at the
Warrant Exercise Price upon the exercise of this Warrant setting forth in
reasonable detail the method of calculation and the facts upon which such
calculation is based.

                (G) Notice. In case at any time: (1) the Company shall pay any
dividend or make any distribution (other than regular cash dividends from
earnings or earned surplus paid at an established rate) to the holders of its
Common Stock; (2) the Company shall offer for subscription pro rata to the
holders of its Common Stock any additional shares of stock of any class or other
rights; (3) there shall be any capital reorganization or reclassification of the
capital stock of the Company, or consolidation or merger of the Company with or
sale of all or substantially all its assets to another corporation; or (4) there
shall be a voluntary or involuntary dissolution, liquidation or winding up of
the Company; then, in any one or more of such enumerated cases, the Company
shall give written notice, by first class mail, postage prepaid,

                                       12
<PAGE>

addressed to the registered holder at the address of such registered holder as
shown on the books of the Company on the date on which (a) the books of the
Company shall close or a record date shall be fixed for determining the
shareholders entitled to such dividend, distribution or subscription rights, or
(b) such reorganization, reclassification, consolidation, merger, sale,
dissolution, liquidation or winding up shall take place, as the case may be.
Such notice shall also provide reasonable details of the proposed transaction
and specify the date as of which the holders of Common Stock of record shall
participate in such dividend, distribution or subscription rights, or shall be
entitled to exchange their Common Stock for securities or other property
deliverable upon such reorganization, reclassification, consolidation, merger,
sale, dissolution, liquidation or winding up, as the case may be. Such written
notice shall be given at least 20 calendar days prior to the action in question
and not fewer than 20 calendar days prior to the record date or the date on
which the Company's transfer books are closed in respect thereto.

                (H) Voting Rights. This Warrant shall not entitle its registered
holder to any voting rights or any other rights as a stockholder of the Company,
but upon presentation of this Warrant with the subscription form annexed duly
executed and the tender of payment of the Warrant Exercise Price at the office
of the Company pursuant to the provisions of this Warrant the registered holder
shall forthwith be deemed a stockholder of the Company in respect of the shares
of Common Stock so subscribed and paid for.

                (I) No Change Necessary. The form of this Warrant need not be
changed because of any adjustment in the Warrant Exercise price or in the number
of shares of Common Stock issuable upon its exercise. A Warrant issued after any
adjustment on any partial exercise or upon replacement may continue to express
the same Warrant Exercise Price and the same number of shares of Common Stock
(appropriately reduced in the case of partial exercise) as are stated on this
Warrant as initially issued, and that Warrant Exercise Price and that number of
shares shall be considered to have been so changed as of the close of business
on the date of adjustment.

        Section 2. Covenant of the Company. All shares of Common Stock which may
be issued upon the exercise of the rights represented by this Warrant, shall,
upon issuance, be duly authorized, validly issued, fully paid and nonassessable
and free from all taxes, liens and charges with respect to the issue thereof.

        Section 3. Fractional Shares. No fractional shares or scrip representing
fractional shares shall be issued upon exercise of this Warrant. If, upon
exercise of this Warrant as an entirety, its registered holder would, except for
the provisions of this Section 3, be entitled to receive a fractional share of
Common Stock, then the Company shall pay in cash to such registered holder an
amount equal to such fractional share multiplied by the fair market value of one
share of Common Stock (as reasonably determined by the Board of Directors of the
Company) on the date of such exercise,

        Section 4. Substitution. In case this Warrant shall be mutilated, lost,
stolen or destroyed, the Company will issue a new Warrant of like tenor and
denomination and deliver the same (a) in exchange and substitution for and upon
surrender and cancellation of any mutilated Warrant, or (b) in lieu of any
Warrant lost, stolen or destroyed, upon receipt of evidence satisfactory to the
Company of the loss, theft, or destruction of such Warrant (including a

                                       13
<PAGE>

reasonably detailed affidavit with respect to the circumstances of any loss,
theft or destruction), and of indemnity (or, in the case of the initial
registered holder or any other institutional holder, an indemnity agreement)
satisfactory to the Company.

        Section 5. Transfer Restrictions. This Warrant or the shares of Common
Stock into which this Warrant is exercisable shall not be sold, transferred,
pledged or hypothecated unless the proposed disposition is the subject of a
currently effective registration statement under the Securities Act, or unless
the Company has received an opinion of counsel reasonably satisfactory in form
and scope to the Company that such registration is not required except that such
restrictions shall not apply to any transfer of this Warrant or the shares of
Common Stock into which this Warrant is exercisable: (i) to a partner or other
affiliate of the registered holder, including any entity of which the registered
holder or a related entity is a general partner; (ii) by gift or bequest or
through inheritance to, or for the benefit of, any member or members of the
registered holder's immediate family; (iii) by a registered holder to a trust
(a) in respect of which the registered holder serves as trustee, provided that
the trust instrument governing such trust shall provide that the registered
holder, as trustee, shall retain sole and exclusive control over the voting and
disposition of such Warrant until the termination of this Warrant or (b) for the
benefit solely of any member or members of the registered holder's immediate
family; and (iv) pursuant to any underwritten public offering of Common Stock
pursuant to an effective registration statement under the Securities Act.

        Section 6. Taxes. The Company shall pay any taxes or other charges that
may be imposed in respect of the issuance and delivery of the Warrant or any
shares of Common Stock or other property upon exercise hereof.

        Section 7. Governing Law. This Warrant shall be deemed a contract made
under the laws of the State of Delaware and its provisions and the rights and
obligations of the parties hereunder shall be governed by, and construed and
enforced in accordance with, the substantive laws of the State of Delaware,
without regard to its principles of conflicts of laws.

        Section 8. Miscellaneous. This Warrant and any term hereof may be
changed, waived, discharged or terminated only by an instrument in writing
signed by the party against which enforcement of such change, waiver, discharge
or termination is sought,

                            [Signature Page Follows]

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