Document:

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EXHIBIT 4.1

SECURITIES PURCHASE AGREEMENT

     
This Securities Purchase Agreement (this
“Agreement”) is made and entered into as
of August 9, 2005 (the “Execution
Date”), by and among Zix Corporation, a Texas
corporation (the “Company”), and each of
the purchasers listed on Schedule A attached hereto
(collectively, the “Purchasers” and
individually, a “Purchaser”).

RECITALS

     
WHEREAS, the Company desires to sell to the Purchasers, and the
Purchasers desire to purchase from the Company, up to an
aggregate of 10,503,862 units (each a
“Unit”), each Unit consisting of one
share of common stock, par value $.01 per share, of the
Company (“Common Stock”) and a five year
warrant (a “Warrant”) to purchase
one-third of one share of Common Stock, on the terms and
conditions set forth in this Agreement; and

     
WHEREAS, the Company and each Purchaser are executing and
delivering this Agreement in reliance upon an exemption from
securities registration afforded by Regulation D
(“Regulation D”) as promulgated by
the Securities and Exchange Commission (the
“SEC”) under the Securities Act of 1933,
as amended (the “Securities Act”).

     
NOW, THEREFORE, in consideration of the foregoing, the mutual
promises hereinafter set forth, and other good and valuable
consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

     
1. AGREEMENT TO PURCHASE AND SELL STOCK.

     
(a) Company Authorization. The Company’s
Board of Directors has authorized the issuance and sale,
pursuant to the terms and conditions of this Agreement, of up to
10,503,862 shares of Common Stock (the
“Purchased Shares”) and up to 3,466,274
Warrants, substantially in the form attached hereto as
Exhibit A. Each Warrant shall be exercisable to
purchase the number of shares of Common Stock set forth thereon
at a price of $3.04 per share of Common Stock (the
“Purchased Warrants” and together with
the Purchased Shares, the “Purchased
Securities”). Subject to their terms and
conditions, the Purchased Warrants shall be exercisable at any
time and from time to time from and after the six-month
anniversary of the Closing Date through and including
August 9, 2010.

     
(b) Agreement to Purchase and Sell Securities.

		
	 	     
    (i) Subject to the terms and conditions of this Agreement,
    each Purchaser, severally and not jointly, agrees to purchase,
    and the Company agrees to sell to each Purchaser, at the Closing
    (as defined below), that number of Units (including the Firm
    Units and Excess Units, each as defined below) set forth
    opposite such Purchaser’s name on Schedule A
    attached hereto. The purchase price of each Unit shall be $2.50
    (the “Per Unit Price”), except in the
    case of each Unit purchased by a director or officer of the
    Company which shall be $2.99 (the “Insider Per Unit
    Price”) and each shall be payable as hereafter set
    forth.
	 
	 	     
    (ii) Notwithstanding anything to the contrary in this
    Agreement, on the Closing Date, no more than 6,302,318 Units
    representing 6,302,318 shares of Common Stock (the
    “Firm Shares”) and associated Warrants
    (the “Firm Warrants”, and together with
    the Firm Shares, the “Firm Units”) shall
    be issued to the Purchasers prior to the Company obtaining
    shareholder approval to issue to the Purchasers the shares of
    Common Stock in excess of the Firm Units in accordance with the
    requirements of NASDAQ Rule 4350(i) and Section 5(d)
    hereto (the “Shareholder Approval”).
    Prior to obtaining the Shareholder Approval, the Units to be
    purchased by the Purchasers (including the Warrants thereto)
    representing Purchased Shares in excess of the Firm Units (the
    “Excess Units”) shall not be issued to
    the Purchasers and instead the proceeds in respect of such
    Excess Units (the “Excess Funds”) shall
    be deposited into

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    escrow, in accordance with the terms of an escrow agreement,
    substantially in the form of Exhibit D hereto (the
    “Escrow Agreement”). The Excess Funds
    shall accrue interest from and including the day following the
    Closing Date to and excluding the date of release in accordance
    with the terms of the Escrow Agreement at a rate of
    7.0% per annum (computed on the basis of a 365-day year).
    If the Company obtains the Shareholder Approval prior to the
    Shareholder Approval Date (as defined below), the Excess Funds
    shall be released to the Company in accordance with the Escrow
    Agreement, and the Excess Units shall be issued to each of the
    Purchasers in the amounts set forth on Schedule A
    hereto, along with such Purchaser’s pro rata share of
    accrued interest on the Excess Funds to such date, which shall
    be payable in cash. If the Company does not obtain the
    Shareholder Approval prior to the Shareholder Approval Date (as
    defined below), the Excess Funds shall be returned to each of
    the Purchasers in accordance with the terms of the Escrow
    Agreement, along with such Purchaser’s pro rata share of
    accrued interest on the Excess Funds to such date. If the Excess
    Funds accrue earnings or interest in escrow at a rate less than
    the rate required by this Section 1(b)(ii), the
    Company shall promptly pay to the Purchasers any shortfall
    amount.

     
(c) Use of Proceeds. The Company intends to
use the net proceeds from the sale of the Purchased Securities
for working capital and general corporate purposes as determined
by the Company from time to time.

     
(d) Obligations Several, Not Joint. The
obligations of each Purchaser under this Agreement are several
and not joint with respect to the obligations of any other
Purchaser, and no Purchaser shall be responsible in any way for
the performance of the obligations of any other Purchaser under
this Agreement. The decision of each of the Purchasers to
purchase the Purchased Securities pursuant to this Agreement has
been made by such Purchaser independently of any other
Purchaser. Nothing contained herein, and no action taken by any
Purchaser pursuant hereto, shall be deemed to constitute the
Purchasers as a partnership, an association, a joint venture or
any other kind of entity, or create a presumption that the
Purchasers are in any way acting in concert or as a group with
respect to such obligations or the transactions contemplated by
this Agreement. Each Purchaser shall be entitled to
independently protect and enforce such Purchaser’s rights,
including, without limitation, the rights arising out of this
Agreement, and it shall not be necessary for any other Purchaser
to be joined as an additional party in any proceeding for such
purpose.

     
2. CLOSING. The purchase and sale of the
Purchased Securities shall take place at the offices of Baker
Botts L.L.P., 2001 Ross Avenue, Dallas, Texas 75201, at
2:00 p.m. Dallas, Texas time, on August 9, 2005, or at
such other time and place as the Company and Purchasers
representing a majority of the Purchased Securities to be
purchased, mutually agree upon (which time and place are
referred to in this Agreement as the
“Closing”). At the Closing, against
delivery of full payment for the Purchased Securities sold
hereunder by wire transfer of immediately available funds in
accordance with the Company’s instructions; the Company
shall issue and deliver to each Purchaser (i) one or more
stock certificates registered in the name of each Purchaser (or
in such nominee name(s) as designated by such Purchaser in the
Stock Certificate and Warrant Questionnaire, attached hereto as
Appendix I (the “Stock Certificate
Questionnaire”), representing the number of Firm
Shares set forth opposite the appropriate Purchaser’s name
on Schedule A hereto, and bearing the legend set
forth in Section 4(k)(i) herein and (ii) the
number of Firm Warrants set forth opposite the appropriate
Purchaser’s name on Schedule A hereto, and
bearing the legend set forth in Section 4(k)(ii);
provided, however, that the Company may furnish to each
Purchaser a facsimile copy of the warrant representing the Firm
Warrant and of the stock certificate(s) representing the Firm
Shares purchased by such Purchaser no later than the next
Business Day following the Closing Date, with the original
warrant and original stock certificate(s) to be delivered to
such Purchaser by overnight courier no later than the third
(3rd) Business Day following the Closing Date. Closing
documents, other than the warrants representing the Firm
Warrants and the stock certificates representing the Firm
Shares, may be delivered by facsimile on the Closing Date, with
original signature pages subsequently sent by overnight courier.

     
For purposes of this Agreement, “Closing
Date” means the date of the Closing, and
“Business Day” means any day except
Saturday, Sunday and any day which shall be a federal legal
holiday or a day on which

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banking institutions in the State of New York are authorized or
required by law or other governmental action to close.

     
3. REPRESENTATIONS, WARRANTIES AND CERTAIN AGREEMENTS
OF THE COMPANY. The Company hereby represents and
warrants to each Purchaser that, except as set forth in the SEC
Documents (as defined below) and in the Disclosure Letter
attached hereto as Exhibit B (the
“Disclosure Letter”):

     
(a) Organization Good Standing and
Qualification. The Company is a corporation duly
organized, validly existing and in good standing under the laws
of the State of Texas and has all corporate power and authority
required to (i) own, operate and occupy its properties and
to carry on its business as presently conducted and
(ii) enter into this Agreement and the other agreements,
instruments and documents contemplated hereby, and to consummate
the transactions contemplated hereby and thereby. The Company is
qualified to do business and is in good standing in each
jurisdiction in which the failure to so qualify would have a
Material Adverse Effect. As used in this Agreement,
“Material Adverse Effect” means a
material adverse effect on, or a material adverse change in, the
business, operations, financial condition, results of
operations, assets or liabilities of the Company and the
Subsidiaries (as defined below), taken as a whole.

     
(b) Capitalization. The capitalization of the
Company is as follows:

		
	 	     
    (i) The authorized capital stock of the Company consists of
    175,000,000 shares of Common Stock, $.01 par value per
    share, and 10,000,000 shares of preferred stock, par value
    $1.00 per share (“Preferred Stock”).
	 
	 	     
    (ii) As of June 30, 2005, the issued and outstanding
    capital stock of the Company consisted of 32,424,929 shares
    of Common Stock and no shares of Preferred Stock. The shares of
    issued and outstanding capital stock of the Company have been
    duly authorized and validly issued, are fully paid and
    nonassessable and have not been issued in violation of or are
    not otherwise subject to any preemptive or other similar rights.
	 
	 	     
    (iii) As of June 30, 2005, the Company had
    10,110,617 shares of Common Stock reserved for issuance
    upon exercise of options granted under the Company’s stock
    option plans.
	 
	 	     
    (iv) As of June 30, 2005, the Company had outstanding
    options for 8,211,325 shares of Common Stock.
	 
	 	     
    (v) As of June 30, 2005, the Company had 3,755,370
    issued and outstanding warrants for the purchase of shares of
    Common Stock.

     
With the exception of the foregoing in this
Section 3(b), there are no outstanding
subscriptions, options, warrants, convertible or exchangeable
securities or other rights to purchase shares of Common Stock or
other securities of the Company, or rights that would trigger
any anti-dilution or similar adjustments to any securities of
the Company, granted to or by the Company, and there are no
commitments, plans or arrangements to issue any shares of Common
Stock or any security convertible into or exchangeable for
Common Stock.

     
(c) Subsidiaries. Except for the
Company’s subsidiaries listed in the SEC documents (the
“Subsidiaries”), the Company does not
own any capital stock of, assets comprising the business of,
obligations of, or any other interest (including any equity or
partnership interest) in, any person or entity. The Company
owns, directly or indirectly, all of the issued and outstanding
shares of stock in each of the Subsidiaries. Each of the
Subsidiaries is duly organized and validly existing in good
standing under the laws of its respective state of
incorporation. Each of the Subsidiaries has full power and
authority to own, operate and occupy its properties and to
conduct its business as presently conducted and is registered or
qualified to do business and in good standing in each
jurisdiction in which it owns or leases property or transacts
business and where the failure to be so qualified would have a
Material Adverse Effect.

     
(d) Due Authorization. All corporate actions
on the part of the Company necessary for the authorization,
execution, delivery and performance of all obligations of the
Company under this Agreement, including

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the authorization, issuance, reservation for issuance and
delivery of all the Purchased Securities being sold under this
Agreement and the Common Stock issuable upon exercise of the
Purchased Warrants (the “Warrant
Shares”), have been taken and no further consent or
authorization of the Company, the Company’s board of
directors (the “Board of Directors”) or
the Company’s stockholders is required (other than the
Shareholder Approval), and this Agreement constitutes the legal,
valid and binding obligation of the Company, enforceable against
the Company in accordance with its terms, except (i) as may
be limited by (1) applicable bankruptcy, insolvency,
reorganization or other laws of general application relating to
or affecting the enforcement of creditors’ rights generally
and (2) the effect of rules of law governing the
availability of equitable remedies and (ii) as rights to
indemnity or contribution may be limited under federal or state
securities laws or by principles of public policy thereunder.

     
(e) Valid Issuance of the Purchased
Securities.

		
	 	     
    (i) Purchased Shares. The Purchased Shares
    have been duly authorized and, when issued and delivered to each
    Purchaser against payment therefor in accordance with the terms
    of this Agreement, will be validly issued, fully paid and
    non-assessable and will be free and clear from all liens, claims
    and encumbrances with respect to the issuance of such Purchased
    Shares and will not be subject to any pre-emptive rights or
    similar rights.
	 
	 	     
    (ii) Purchased Warrants. The Purchased
    Warrants to be issued pursuant to this Agreement have been duly
    authorized and, when issued and delivered to each Purchaser
    against payment therefor in accordance with the terms of this
    Agreement, will be validly issued and will be free and clear
    from all liens, claims and encumbrances with respect to the
    issuance of such Purchased Warrants and will not be subject to
    any pre-emptive rights or similar rights.
	 
	 	     
    (iii) Warrant Shares. The issuance of the
    Warrant Shares issued or issuable from time to time upon the
    exercise of the Purchased Warrants have been, and at all times
    prior to such exercise, will be, duly authorized and duly
    reserved for issuance upon such exercise and payment of the
    exercise price of the Purchased Warrants and, when issued and
    delivered to each Purchaser upon exercise against payment
    therefor in accordance with the terms of the Warrant, will be
    validly issued, fully paid and non-assessable and will be free
    and clear from all liens, claims and encumbrances with respect
    to the issuance of such Warrant Shares and will not be subject
    to any pre-emptive rights or similar rights.

     
(f) Compliance with Securities Laws. Subject
to the accuracy of the representations made by the Purchasers in
Section 4 hereof, the Purchased Securities will be
issued and sold to the Purchasers in compliance with
(i) the exemption in Rule 506 of Regulation D
promulgated under the Securities Act from the registration and
prospectus delivery requirements of the Securities Act and
(ii) applicable exemptions from the registration and
qualification requirements of all applicable securities laws of
the states of the United States.

     
(g) Governmental Consents. No consent,
approval, order or authorization of, or registration,
qualification, designation, declaration or filing with, or
notice to, any federal, state or local governmental authority or
self regulatory agency on the part of the Company is required in
connection with the issuance and sale of the Purchased
Securities to the Purchasers by the Company or the consummation
of the other transactions contemplated by this Agreement, except
(i) such filings as have been made prior to the date
hereof, (ii) the filings under applicable securities laws
required to comply with the Company’s registration
obligations under Section 5(a) of this Agreement and
(iii) such additional post-Closing filings as may be
required to comply with applicable state and federal securities
laws, including, but not limited to, the filing of a Form D
relating to the sale of the Purchased Securities pursuant to
Regulation D.

     
(h) Non-Contravention. Assuming the accuracy
of the representations and warranties made by the Purchasers in
Section 4 hereof, the execution, delivery and
performance of this Agreement by the Company, and the
consummation by the Company of the transactions contemplated
hereby (including the issuance of the Purchased Securities and
the Warrant Shares), do not: (i) contravene or conflict
with the articles of incorporation, as amended (the
“Articles of Incorporation”), or bylaws,
as amended (the “Bylaws”), of the
Company or of any Subsidiary; (ii) constitute a violation
of any provision of any federal, state, local or foreign

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law, rule, regulation, order or decree applicable to the Company
or any Subsidiary; or (iii) constitute a default (with or
without the passage of time or giving of notice or both) or
require any consent under, give rise to any right of
termination, cancellation or acceleration of, or result in the
creation or imposition of any lien, claim or encumbrance on any
asset of the Company or the Subsidiaries under, any material
contract to which the Company or the Subsidiaries is a party or
any permit, license or similar right relating to the Company or
the Subsidiaries or by which the Company or the Subsidiaries may
be bound or affected, except in the case of clauses (ii)
and (iii), for such violations, breaches or defaults as would
not be reasonably likely to have a Material Adverse Effect.

     
(i) Litigation. Except as set forth in the
SEC Documents, there is no action, suit, proceeding, claim,
arbitration or investigation (“Action”)
pending or, to the Company’s knowledge, threatened:
(i) against the Company or any Subsidiary, their properties
or assets, or any officer, director or employee of the Company
or any Subsidiary in connection with such officer’s,
director’s or employee’s relationship with, or actions
taken on behalf of, the Company or any Subsidiary, that would be
reasonably likely to have a Material Adverse Effect, or
(ii) that seeks to prevent, enjoin, alter, challenge or
delay the transactions contemplated by this Agreement. The
Company is not a party to, nor subject to the provisions of, any
order, writ, injunction, judgment or decree of any court or
government agency or instrumentality that would reasonably be
expected to prevent, enjoin, alter, challenge or delay the
consummation of the transactions contemplated by this Agreement
or would be reasonably likely to have a Material Adverse Effect.
The SEC has not issued any stop order or other order suspending
the effectiveness of any registration statement filed by the
Company under the Securities Act or the Securities Exchange Act
of 1934, as amended ( the “Exchange
Act”).

     
(j) Compliance with Law and Charter
Documents. The Company is not in violation or default of
any provisions of the Articles of Incorporation or the Bylaws.
The Company is currently in compliance with all applicable
statutes, laws, rules, regulations and orders of the United
States of America and all states thereof, foreign countries and
other governmental bodies and agencies having jurisdiction over
the Company’s business or properties, except for any
instance of non-compliance that has not had, and would not
reasonably be expected to have, a Material Adverse Effect.
Neither the Company nor any Subsidiary is in default (and there
exists no condition which, with or without the passage of time
or giving of notice or both, would constitute a default) in any
material respect in the performance of any bond, debenture, note
or any other evidence of indebtedness in any indenture,
mortgage, deed of trust or any other material agreement or
instrument to which the Company or any Subsidiary is a party or
by which the Company or any Subsidiary is bound or by which the
properties of the Company or any Subsidiary is bound, which
default would be reasonably likely to have a Material Adverse
Effect or which would be reasonably likely to have a Material
Adverse Effect on the transactions contemplated by this
Agreement.

     
(k) Material Non-Public Information. The
Company has not provided, and will not provide, to the
Purchasers any material non-public information other than
information related to the transactions contemplated by this
Agreement, all of which information shall be disclosed by the
Company pursuant to Section 9(m) hereof.

     
(l) SEC Documents.

		
	 	     
    (1) Reports. The Company has filed in a
    timely manner all reports, schedules, forms, statements and
    other documents required to be filed by it with the Securities
    and Exchange Commission (the “SEC”)
    pursuant to the reporting requirements of the Exchange Act and
    the rules and regulations promulgated thereunder. The Company
    has made available to the Purchasers prior to the date hereof
    copies of its Annual Report on Form 10-K for the fiscal
    year ended December 31, 2004, as amended (the
    “Form 10-K”), its quarterly report
    on Form 10-Q for the fiscal quarter ended March 31,
    2005 (the “Form 10-Q”), and any
    Current Report on Form 8-K for events occurring since
    December 31, 2004
    (“Form 8-Ks”) filed or furnished by
    the Company with the SEC (the Form 10-K, the Form 10-Q
    and the Form 8-Ks are collectively referred to herein as
    the “SEC Documents”). Each of the SEC
    Documents, as of the respective dates thereof (or, if amended or
    superseded by a filing or submission, as the case may be, prior
    to the Closing Date, then on the date of such filing or
    submission, as the case may be), (1) did not contain any
    untrue statement of a material fact nor omit to state a material
    fact

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    necessary in order to make the statements made therein, in light
    of the circumstances under which they were made, not misleading
    and (2) complied in all material respects with the
    requirements of the Exchange Act and the rules and regulations
    of the SEC promulgated thereunder applicable to such SEC
    Document.
	 
	 	     
    (2) Sarbanes-Oxley. The Chief Executive
    Officer and the Chief Financial Officer of the Company have
    signed, and the Company has furnished to the SEC, all
    certifications required by Sections 302 and 906 of the
    Sarbanes-Oxley Act of 2002. Such certifications contain no
    qualifications or exceptions to the matters certified therein
    (other than such qualifications or exceptions that are permitted
    under the Exchange Act and the rules promulgated thereunder) and
    have not been modified or withdrawn; and neither the Company nor
    any of its officers has received notice from any governmental
    entity questioning or challenging the accuracy, completeness,
    form or manner of filing or submission of such certifications.
    Without limiting the foregoing, the Company is in compliance
    with any applicable requirements of the Sarbanes-Oxley Act of
    2002 and the rules and regulations promulgated thereunder, as
    amended, that are currently in effect.
	 
	 	     
    (3) Financial Statements. The consolidated
    financial statements of the Company included in the SEC
    Documents (1) comply as to form in all material respects
    with the rules and regulations of the SEC with respect thereto
    as were in effect at the time of filing and (2) present
    fairly, in all material respects, in accordance with United
    States generally accepted accounting principles
    (“GAAP”), consistently applied, the
    consolidated financial position of the Company as of the dates
    indicated therein, and the consolidated results of its
    operations and cash flows for the periods therein specified,
    subject, in the case of unaudited consolidated financial
    statements for interim periods, to normal, immaterial year-end
    audit adjustments.

     
(m) Absence of Certain Changes Since the Balance
Sheet Date. Except as disclosed in the SEC Documents,
since the filing of the Company’s most recent
Form 10-K with the SEC, the business and operations of the
Company and the Subsidiaries have been conducted in the ordinary
course consistent with past practice, and there has not been:

		
	 	     
    (i) any declaration, setting aside or payment of any
    dividend or other distribution of the assets of the Company with
    respect to any shares of capital stock of the Company or any
    repurchase, redemption or other acquisition by the Company or
    any Subsidiary of the Company of any outstanding shares of the
    Company’s capital stock;
	 
	 	     
    (ii) any damage, destruction or loss to the Company’s
    or any Subsidiary’s business or assets, whether or not
    covered by insurance, except for such occurrences, individually
    and collectively, that have not had, and would not reasonably be
    expected to have, a Material Adverse Effect;
	 
	 	     
    (iii) any waiver by the Company or any Subsidiary of a
    valuable right or of a material debt owed to it, except for such
    waivers, individually and collectively, that have not had, and
    would not reasonably be expected to have, a Material Adverse
    Effect;
	 
	 	     
    (iv) any material change or amendment to, or any waiver of
    any material right under a material contract or arrangement by
    which the Company, any Subsidiary or any of their assets or
    properties is bound or subject;
	 
	 	     
    (v) any transaction between the Company or any Subsidiary,
    on the one hand, and any of its officers or directors, on the
    other hand, that would be required to be disclosed pursuant to
    Item 404(a), (b) or (c) of Regulation S-K of
    the SEC;
	 
	 	     
    (vi) any change by the Company in its accounting
    principles, methods or practices or in the manner in which it
    keeps its accounting books and records, except any such change
    required by a change in GAAP or by the SEC; or
	 
	 	     
    (vii) any other event or condition, either individually or
    collectively, that has had, or would be reasonably likely to
    have, a Material Adverse Effect.

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(n) Intellectual Property. The Company and
its Subsidiaries own or possess sufficient rights to use all
patents, patent rights, inventions, trade secrets, know-how,
trademarks, service marks, trade names, licenses, copyrights or
other information (collectively, “Intellectual
Property”) which are used to conduct their
businesses as currently conducted, except where the failure to
own or possess such sufficient rights would not reasonably be
expected to result, either individually or in the aggregate, in
a Material Adverse Effect. Neither the Company nor any
Subsidiary has received any written notice of, and has no actual
knowledge of, any infringement of or conflict with asserted
rights of others with respect to any Intellectual Property
which, either individually or in the aggregate, if the subject
of an unfavorable decision, ruling or finding, would reasonably
be expected to have a Material Adverse Effect, and to the
Company’s and each of the Subsidiaries’ knowledge,
none of the patent rights owned or licensed by the Company or
the Subsidiaries are unenforceable or invalid.

     
(o) Registration Rights. Except as provided
in Section 5 herein, effective upon the Closing, the
Company is not currently subject to any agreement providing any
person or entity any rights (including piggyback registration
rights) to have any securities of the Company registered with
the SEC or registered or qualified with any other governmental
authority that have not previously been satisfied.

     
(p) Title to Property and Assets. The
properties and assets of the Company and the Subsidiaries are
owned by the Company or the Subsidiaries free and clear of all
mortgages, deeds of trust, liens, charges, encumbrances and
security interests, except for (i) statutory liens for the
payment of current taxes that are not yet delinquent and
(ii) liens, encumbrances and security interests that arise
in the ordinary course of business and do not in any material
respect affect the business of the Company and the Subsidiaries
as currently conducted. With respect to the property and assets
it leases, each of the Company and the Subsidiaries is in
compliance with such leases in all material respects.

     
(q) Taxes. The Company and the Subsidiaries
have filed or have valid extensions of the time to file all
necessary federal, state, and foreign income and franchise tax
returns due prior to the date hereof or have requested
extensions thereof (except in any case in which the failure to
so file would not reasonably be expected to have a Material
Adverse Effect) and has paid or accrued all taxes due.

     
(r) Internal Accounting Controls. The Company
and each of the Subsidiaries maintain a system of internal
accounting controls sufficient to provide reasonable assurance
that (i) transactions are executed in accordance with
management’s general or specific authorizations,
(ii) transactions are recorded as necessary to permit
preparation of financial statements in conformity with GAAP and
to maintain asset accountability, (iii) access to assets is
permitted only in accordance with management’s general or
specific authorization, and (iv) the recorded
accountability for assets is compared with the existing assets
at reasonable intervals and appropriate action is taken with
respect to any differences.

     
(s) Market. The Company has not taken and
will not take, directly or indirectly, any action designed to,
or that might reasonably be expected to cause or result in,
stabilization or manipulation of the price of the Common Stock
of the Company to facilitate the sale or resale of the Purchased
Securities.

     
(t) Investment Company. The Company is not an
“investment company” within the meaning of such term
under the Investment Company Act of 1940, as amended.

     
(u) Application of Anti-Takeover Provisions.
There is no control share acquisition, business combination,
poison pill or other similar anti-takeover provision under the
Company’s Articles of Incorporation (or similar charter
documents) that would become applicable to the Purchasers as a
result of the issuance of the Company Shares and Warrant Shares.

     
(v) General Solicitation. Neither the Company
nor any other Person (as defined below) authorized by the
Company to act on its behalf has engaged in a general
solicitation or general advertising (within the meaning of
Regulation D) of investors with respect to offers or sales
of the Purchased Securities. For purposes of this Agreement,
“Person” means an individual or
corporation, trust, incorporated or unincorporated association,
joint venture, limited liability company, joint stock company,
government (or an agency or subdivision thereof) or other entity
of any kind.

A-7

 

     
(w) Registration Statement Matters. The
Company currently meets the eligibility requirements for use of
a Form S-3 Registration Statement for the resale of the
Registrable Shares (as defined below) by the Purchasers.
Assuming the completion and timely delivery of the Registration
Statement/ Suitability Questionnaire, attached hereto as
Appendix II (the “Registration Statement
Questionnaire”), by each Purchaser to the Company,
the Company is not aware of any facts or circumstances that
would prohibit or delay the preparation and filing of a
registration statement with respect to the Registrable Shares.

     
(x) No Integrated Offering. Neither the
Company, nor any Affiliate (as hereafter defined) of the
Company, nor any person acting on its behalf has, directly or
indirectly, made any offers or sales of any security or
solicited any offers to buy any security, under circumstances
that would cause this offering of the Purchased Securities to be
integrated with prior offerings by the Company for purposes of
the Securities Act, any applicable state securities laws or any
applicable stockholder approval provisions, nor will the Company
take any action or steps that would cause the offering of the
Purchased Securities to be integrated with other offerings.

     
For purposes of this Agreement, an
“Affiliate” of any specified Person
means any other Person directly or indirectly controlling,
controlled by or under direct or indirect common control with
such specified Person. For purposes of this definition,
“control” means the power to direct the
management and policies of such person or firm, directly or
indirectly, whether through the ownership of voting securities,
by contract or otherwise.

     
(y) Trading and Registration Matters. The
Common Stock of the Company is eligible for trading on The
NASDAQ National Market under the ticker symbol “ZIXI”.
The Company has taken no action designed to terminate, or likely
to have the effect of terminating, the listing of the Common
Stock on the NASDAQ National Market.

     
4. REPRESENTATIONS, WARRANTIES AND CERTAIN AGREEMENTS
OF THE PURCHASERS. Each Purchaser, severally and not
jointly, hereby represents and warrants to the Company, and
agrees that:

     
(a) Organization. Such Purchaser has all
corporate, limited liability company, partnership, trust or
individual, as the case may be, power and authority required to
enter into this Agreement and the other agreements, instruments
and documents contemplated hereby, and to consummate the
transactions contemplated hereby and thereby.

     
(b) Due Authorization. All corporate, limited
liability company, partnership, trust or individual, as the case
may be, action on the part of such Purchaser necessary for the
authorization, execution, delivery of and the performance of all
obligations of such Purchaser under this Agreement have been
taken and no further consent or authorization of such Purchaser
is necessary, and this Agreement constitutes such
Purchaser’s legal, valid and binding obligation,
enforceable in accordance with its terms, except (i) as may
be limited by (1) applicable bankruptcy, insolvency,
reorganization or other laws of general application relating to
or affecting the enforcement of creditors’ rights generally
and (2) the effect of rules of law governing the
availability of equitable remedies and (ii) as rights to
indemnity or contribution may be limited under federal or state
securities laws or by principles of public policy thereunder.

     
(c) Non-Contravention. The execution,
delivery and performance of this Agreement by such Purchaser,
and the consummation by such Purchaser of the transactions
contemplated hereby, do not: (i) contravene or conflict
with the organizational documents of such Purchaser; or
(ii) constitute a violation of any provision of any
federal, state, local or foreign law, rule, regulation, order or
decree applicable to such Purchaser, except in the case of
clause (ii), for such violations, breaches or defaults as
would not be reasonably likely to have a material adverse effect
on such Purchaser.

     
(d) Litigation. There is no Action pending to
which such Purchaser is a party that is reasonably likely to
prevent, enjoin, alter or delay the transactions contemplated by
this Agreement.

     
(e) Purchase for Own Account. The Purchased
Securities are being acquired for investment for such
Purchaser’s own account, not as a nominee or agent, in the
ordinary course of business, and not with a view to the public
resale or distribution thereof within the meaning of the
Securities Act. Such Purchaser also

A-8

 

represents that it has not been formed for the specific purpose
of acquiring the Purchased Securities. Such Purchaser does not
have any agreement or understanding, direct or indirect, with
any other Person to sell or otherwise distribute the Purchased
Securities. Notwithstanding the foregoing, the parties hereto
acknowledge such Purchaser’s right at all times to sell or
otherwise dispose of all or any part of such securities in
compliance with applicable federal and state securities laws and
as otherwise contemplated by this Agreement.

     
(f) Investment Experience. Such Purchaser
understands that the purchase of the Purchased Securities
involves substantial risk. Such Purchaser has experience as an
investor in securities of companies and acknowledges that it can
bear the economic risk of its investment in the Purchased
Securities and has such knowledge and experience in financial or
business matters that it is capable of evaluating the merits and
risks of this investment in the Purchased Securities and
protecting its own interests in connection with this investment.

     
(g) Accredited Purchaser Status. Such
Purchaser is an “accredited investor” within the
meaning of Regulation D promulgated under the Securities
Act.

     
(h) Reliance Upon Purchaser’s
Representations. Such Purchaser understands that the
sale of the Purchased Securities to it will not be registered
under the Securities Act on the ground that such issuance and
sale will be exempt from registration under the Securities Act,
and that the Company’s reliance on such exemption is based
on each Purchaser’s representations set forth herein.

     
(i) Receipt of Information. Such Purchaser
has (i) had access to the Company’s SEC Documents and
(ii) has had an opportunity to ask questions and receive
answers from the Company regarding the terms and conditions of
the sale of the Purchased Securities and the business,
properties, prospects and financial condition of the Company and
to obtain any additional information requested and has received
and considered all information it deems relevant to make an
informed decision to purchase the Purchased Securities.

     
(j) Restricted Securities and Restrictions on
Transfer.

		
	 	     
    (i) Such Purchaser understands that the Purchased
    Securities and the Warrant Shares have not been registered under
    the Securities Act and will not sell, offer to sell, assign,
    pledge, hypothecate or otherwise transfer any of the Purchased
    Securities or the Warrant Shares (except as permitted in
    Section 4(k) below) unless (A) pursuant to an
    effective registration statement under the Securities Act,
    (B) such Purchaser provides a reasonably acceptable legal
    opinion to the Company, to the effect that a sale, assignment,
    pledge, hypothecation or other transfer of the Purchased
    Securities or the Warrant Shares, as the case may be, may be
    made without registration under the Securities Act and the
    transferee agrees to be bound by the terms and conditions of
    this Agreement, (C) such Purchaser provides the Company a
    “no action” letter from the SEC to the effect that the
    transfer of the Purchased Securities or the Warrant Shares, as
    the case may be, without registration will not result in a
    recommendation by the Staff of the SEC that enforcement action
    by taken with respect thereto, (D) such Purchaser provides
    the Company with reasonable assurances (in the form of seller
    and broker representation letters) that the Purchased Securities
    or the Warrant Shares, as the case may be, can be sold pursuant
    to Rule 144 promulgated under the Securities Act
    (“Rule 144”), (E) such
    Purchaser provides the Company with reasonable assurances (in
    the form of seller representation letters) that the Purchased
    Securities or the Warrant Shares, as the case may be, can be
    sold pursuant to Rule 144(k) promulgated under the
    Securities Act following the applicable holding period or
    (F) pursuant to any other exception contained in the
    Securities Act provided that the Purchaser provides a reasonably
    acceptable legal opinion to the Company. Notwithstanding
    anything to the contrary contained in this Agreement, including
    but not limited to in Section 5(c)(i) below, such
    Purchaser may transfer the Purchased Securities or the Warrant
    Shares to its Affiliates provided that (X) such Purchaser
    provides the Company with a reasonably acceptable legal opinion,
    (Y) such Affiliate is an “accredited investor”
    within the meaning of Regulation D and (Z) each such
    Affiliate agrees to be bound by the terms and conditions of this
    Agreement, and in particular, confirms to the Company that all
    of the representations set forth in Section 4 of
    this Agreement are true and correct as to such Affiliate as of
    the date of the transfer to such Affiliate.

A-9

 

		
	 	     
    (ii) Prior to any proposed transfer pursuant to
    clause (B), (C), (D), (E) or (F) in
    Section 4(j)(i) above, such Purchaser shall give
    written notice to the Company of such Purchaser’s intention
    to effect such transfer. Each such notice shall describe the
    manner and circumstances of the proposed transfer in sufficient
    detail, and shall be accompanied by the applicable legal
    opinion, “no action” letter or seller and broker
    representation letters.
	 
	 	     
    (iii) Notwithstanding the foregoing provisions of this
    Section 4(j), no registration statement, legal
    opinion or “no action” letter shall be necessary for a
    transfer of the Purchased Securities or the Warrant Shares
    (A) by a Purchaser that is a partnership to a partner of
    such partnership or a retired partner of such partnership who
    retires after the date of this Agreement, (B) by a
    Purchaser that is a limited liability company to a member of
    such limited liability company, (C) by a Purchaser that is
    a partnership or limited liability company to the estate of any
    partner, retired partner, or member thereof or (D) by any
    partner or member of a Purchaser that is a partnership or
    limited liability company by gift, will or intestate succession
    to such partner or member’s spouse or to the siblings,
    lineal descendants, ancestors of such partner or member or his
    or her spouse.

     
(k) Legends.

		
	 	     
    (i) Such Purchaser agrees that, to the extent necessary,
    the certificates for the Purchased Shares and the Warrant Shares
    shall bear the following legend:

		
	 	
    “THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT
    BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED
    (THE “SECURITIES ACT”) OR ANY APPLICABLE STATE
    SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED UNLESS
    (I) A REGISTRATION STATEMENT COVERING SUCH SECURITIES IS
    EFFECTIVE UNDER THE SECURITIES ACT OR (II) THE TRANSACTION
    IS EXEMPT FROM REGISTRATION UNDER THE SECURITIES ACT AND, IF THE
    COMPANY REQUESTS, AN OPINION SATISFACTORY TO THE COMPANY TO SUCH
    EFFECT HAS BEEN RENDERED BY COUNSEL.”

     
Certificates evidencing the Purchased Shares and the Warrant
Shares shall not contain any legend, (i) while a
registration statement (including the Registration Statement)
covering the resale of such security is effective under the
Securities Act, (ii) following any sale of such Purchased
Shares or the Warrant Shares pursuant to Rule 144,
(iii) if such Purchased Shares or the Warrant Shares are
eligible for sale under Rule 144(k) or (iv) if such
legend is not required under applicable requirements of the
Securities Act (including judicial interpretations and
pronouncements issued by the Staff of the SEC). The Company
shall cause its counsel to issue a legal opinion to the
Company’s transfer agent promptly after the date on which
the Registration Statement is declared effective (the
“Effective Date”) if such legal opinion
is required by the Company’s transfer agent to effect the
removal of the legend hereunder. If all or any portion of a
Purchased Warrant is exercised at a time when there is an
effective registration statement to cover the resale of the
Warrant Shares, such Warrant Shares shall be issued free of all
legends. The Company agrees that following the Effective Date or
at such time as such legend is no longer required under this
Section 4(k), it will, no later than five
(5) Business Days following the delivery by a Purchaser to
the Company or to the Company’s transfer agent of a
certificate representing Purchased Shares or the Warrant Shares,
as the case may be, issued with a restrictive legend, deliver or
cause to be delivered to such Purchaser a certificate
representing such Purchased Shares or the Warrant Shares, as the
case may be, that is free from all restrictive and other
legends. The Company may not make any notation on its records or
give instructions to any transfer agent of the Company that
enlarge the restrictions on transfer set forth in
Section 4(j) or this Section 4(k).

     
Each Purchaser, severally and not jointly with the other
Purchasers, agrees that the removal of the restrictive legend
from certificates representing the Purchased Shares or the
Warrant Shares as set forth in this Section 4(k) is
predicated upon such Purchaser’s covenant that such
Purchaser only will sell any Purchased Shares or Warrant Shares
pursuant to either the registration requirements of the
Securities Act, including any applicable prospectus delivery
requirements, or an exemption therefrom.

A-10

 

     
In addition, such Purchaser agrees that the Company may place
stop transfer orders with its transfer agent with respect to
such certificates in order to implement the restrictions on
transfer set forth in this Agreement. The appropriate portion of
the legend and the stop transfer orders will be removed promptly
upon delivery to the Company of such satisfactory evidence as
reasonably may be required by the Company that such legend or
stop transfer orders are not required to ensure compliance with
the Securities Act.

		
	 	     
    (ii) Such Purchaser agrees that the Purchased Warrants
    shall bear the following legend:

		
	 	
    “THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE
    HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
    1933, AS AMENDED (THE “SECURITIES ACT”) OR ANY
    APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR
    TRANSFERRED UNLESS (I) A REGISTRATION STATEMENT COVERING
    SUCH SECURITIES IS EFFECTIVE UNDER THE SECURITIES ACT OR
    (II) THE TRANSACTION IS EXEMPT FROM REGISTRATION UNDER THE
    SECURITIES ACT AND, IF THE COMPANY REQUESTS, AN OPINION
    SATISFACTORY TO THE COMPANY TO SUCH EFFECT HAS BEEN RENDERED BY
    COUNSEL.”

     
(l) Questionnaires. Such Purchaser has
completed or caused to be completed the Stock Certificate
Questionnaire and the Registration Statement Questionnaire for
use in preparation of the Registration Statement (as defined in
Section 5(a) below), and the answers to such
questionnaires are true and correct as of the date of this
Agreement; provided, that such Purchaser shall be
entitled to update such information by providing written notice
thereof to the Company before the effective date of the
Registration Statement.

     
(m) Restrictions on Short Sales. Neither such
Purchaser nor any Affiliate of such Purchaser which (i) had
knowledge of the transactions contemplated hereby, (ii) has
or shares discretion relating to such Purchaser’s
investments or trading or information concerning such
Purchaser’s investments, including in respect of the
Purchased Securities, or (iii) is subject to such
Purchaser’s review or input concerning such
Affiliate’s investments or trading, has or will, directly
or indirectly, during the period beginning on the date on which
C.E. Unterberg, Towbin, financial advisor to the Company, first
contacted such Purchaser regarding the transactions contemplated
by this Agreement until the time of the filing of the Current
Report of Form 8-K required by Section 9(m),
engage in (1) any “short sales” (as such term is
defined in Rule 3b-3 promulgated under the Exchange Act) of
the Common Stock, including, without limitation, the maintaining
of any short position with respect to, establishing or
maintaining a “put equivalent position” (within the
meaning of Rule 16a-1(h) under the Exchange Act) with
respect to, entering into any swap, derivative transaction or
other arrangement (whether any such transaction is to be settled
by delivery of Common Stock, other securities, cash or other
consideration) that transfers to another, in whole or in part,
any economic consequences or ownership, or otherwise dispose of,
any of the Purchased Securities or the Warrant Shares by such
Purchaser or (2) any hedging transaction which establishes
a net short position with respect to the Purchased Securities
(clauses (1) and (2) together, a “Short
Sale”); except for (A) Short Sales by such
Purchaser or Affiliate of such Purchaser which was, prior to the
date on which such Purchaser was first contacted by C.E.
Unterberg, Towbin regarding the transactions contemplated by
this Agreement, a market maker for the Common Stock, provided
that such Short Sales are in the ordinary course of business of
such Purchaser or Affiliate of such Purchaser and are in
compliance with the Securities Act, the rules and regulations of
the Securities Act and such other securities laws as may be
applicable, (B) Short Sales by such Purchaser or an
Affiliate of such Purchaser which by virtue of the procedures of
such Purchaser are made without knowledge of the transactions
contemplated by this Agreement or (C) Short Sales by the
Purchaser or an Affiliate of such Purchaser to the extent that
such Purchaser or Affiliate of such Purchaser is acting in the
capacity of a broker-dealer executing unsolicited third-party
transactions.

     
(n) Independent Investment. Such Purchaser
has not agreed to act with any other Purchaser for the purpose
of acquiring, holding or disposing of any of the Purchased
Securities or the Warrant Shares for purposes of
Section 13(d) of the Exchange Act, and such Purchaser is
acting independently with respect to its investment in the
Purchased Securities.

     
(o) Confidentiality. Such Purchaser agrees to
use any information it receives in the course of and in
connection with the transactions contemplated under this
Agreement for the sole purpose of evaluating a

A-11

 

possible investment in the Purchased Securities and such
Purchaser hereby acknowledges that it is prohibited from
reproducing or distributing any such information, this
Agreement, or any other offering materials provided by the
Company or any of its Affiliates in connection with such
Purchaser’s consideration of its investment in the Company,
in whole or in part, or divulging or discussing any of their
contents except to its advisors and representatives for the
purpose of evaluating such investment. The foregoing agreements
shall not apply to any information that (i) is or becomes
publicly available through no fault of such Purchaser,
(ii) was already known to such Purchaser prior to its
disclosure by the Company or any of its Affiliates to the
Purchaser, as evidenced by documentation or other evidence
reasonably satisfactory to the Company, (iii) is or becomes
available to such Purchaser on a non-confidential basis from a
source other than the Company or any of its Affiliates (so long
as such Purchaser is not aware such disclosure is in breach of a
confidentiality obligation to the Company), (iv) is
independently developed by such Purchaser’s personnel
without access to or use of the confidential information
received from the Company or any of its Affiliates, as evidenced
by documentation or other evidence reasonably satisfactory to
the Company or (v) is legally required to be disclosed by
such Purchaser under operation of law or judicial or other
governmental order; provided, however, that if the
Purchaser is requested or ordered to disclose any such
information pursuant to any court or other governmental order or
any other applicable legal procedure, it shall provide the
Company with reasonably prompt notice of any such request or
order to enable the Company to seek an appropriate protective
order and shall provide the Company with reasonable assistance
in obtaining such protective order at the Company’s sole
expense.

     
5. FORM D FILING; REGISTRATION; COMPLIANCE WITH THE
SECURITIES ACT; NO NASDAQ REQUIREMENTS.

     
(a) Form D Filing; Registration of the Purchased
Securities and Warrant Shares. The Company hereby agrees
that it shall:

		
	 	     
    (i) file in a timely manner a Form D relating to the
    sale of the Purchased Securities under this Agreement, pursuant
    to Regulation D;
	 
	 	     
    (ii) prepare and file with the SEC as soon as practicable
    and in no event later than thirty (30) days following the
    Closing Date the (“Required Filing
    Date”), a registration statement on Form S-3
    or such other form that is available to the Company under the
    Securities Act (the “Registration
    Statement”), to enable the resale of the Purchased
    Shares and the Warrant Shares (together with any shares of
    Common Stock issued as a dividend or other distribution with
    respect to, or in exchange for, or in replacement of, the
    Purchased Shares or the Warrant Shares, the
    “Registrable Shares”) by the Purchasers
    from time to time. The Company shall use its commercially
    reasonable efforts to cause the Registration Statement
    (x) to be declared effective as promptly as possible after
    filing, but in any event, no later than the 120th day
    following the Closing Date (the “Required Effective
    Date”), and (y) to remain continuously
    effective until the earlier of (1) the second anniversary
    of the effective date of the Registration Statement,
    (2) the date on which all Registrable Shares purchased by
    the Purchasers pursuant to this Agreement have been sold
    thereunder or (3) the date on which the Registrable Shares
    become eligible for resale pursuant to Rule 144(k)
    promulgated under the Securities Act (the
    “Registration Period”); provided,
    however, that if any Purchaser is an “affiliate”
    of the Company (as defined in Rule 144(a)(1) of the
    Securities Act) on the second anniversary of the effective date
    of the Registration Statement, the applicable time period for
    purposes of clause (1) above shall be the third anniversary
    of the effective date of the Registration Statement. If the
    Company receives notification from the SEC that the Registration
    Statement will receive no action or review from the SEC, then
    the Company will use its commercially reasonable efforts to
    cause the Registration Statement to become effective within five
    (5) Business Days after such SEC notification;
	 
	 	     
    (iii) prepare and file with the SEC such amendments
    (including post-effective amendments) and supplements to the
    Registration Statement and the Prospectus (as defined below)
    used in connection therewith as may be necessary to keep the
    Registration Statement effective at all times until the end of
    the Registration Period;

A-12

 

		
	 	     
    (iv) furnish to the Purchasers, with respect to the
    Registrable Shares registered under the Registration Statement,
    such reasonable number of copies of any prospectus in conformity
    with the requirements of the Securities Act and such other
    documents as the Purchasers may reasonably request in writing,
    in order to facilitate the public sale or other disposition of
    all or any of the Registrable Shares by the Purchasers;
	 
	 	     
    (v) use its commercially reasonable efforts to file
    documents required of the Company for normal blue sky clearance
    in states specified in writing by the Purchasers; provided,
    however, that the Company shall not be required to qualify
    to do business or consent to service of process in any
    jurisdiction in which it is not now so qualified or has not so
    consented;
	 
	 	     
    (vi) promptly notify the Purchasers in writing of the
    effectiveness of the Registration Statement on the same day the
    Registration Statement has been declared effective;
	 
	 	     
    (vii) promptly notify the Purchasers in writing of the
    existence of any fact or the happening of any event, during the
    Registration Period (but not as to the substance of any such
    fact or event), that makes any statement of a material fact made
    in the Registration Statement, the Prospectus, any amendment or
    supplement thereto, or any document incorporated by reference
    therein untrue, or that requires the making of any additions to
    or changes in the Registration Statement or the Prospectus in
    order to make such statements not misleading; provided,
    however, that no notice by the Company shall be required
    pursuant to this subsection (vii) in the event that
    the Company either contemporaneously files a prospectus
    supplement to update the Prospectus or, if applicable, a Current
    Report on Form 8-K or other appropriate Exchange Act report
    that is incorporated by reference into the Registration
    Statement, which, in either case, contains the requisite
    information with respect to such material event that results in
    such Registration Statement no longer containing any such untrue
    or misleading statements;
	 
	 	     
    (viii) furnish to each Purchaser upon written request, from
    the date of this Agreement until the end of the Registration
    Period, one copy of its periodic reports filed with the SEC
    pursuant to the Exchange Act and the rules and regulations
    promulgated thereunder; and
	 
	 	     
    (ix) bear all expenses in connection with the procedures
    described in paragraphs (i) through (viii) of
    this Section 5(a) and the registration of the
    Registrable Shares pursuant to the Registration Statement, other
    than fees and expenses, if any, of legal counsel or other
    advisers to the Purchasers or underwriting discounts, brokerage
    fees and commissions incurred by the Purchasers, if any.

     
It shall be a condition precedent to the obligations of the
Company to take any action pursuant to this
Section 5(a) with respect to Registrable Shares held
by a Purchaser that such Purchaser shall timely furnish to the
Company a completed Registration Statement Questionnaire on or
before the Closing Date and such other written information
regarding such Purchaser, the Registrable Shares to be sold by
such Purchaser and the intended method of disposition of the
Registrable Shares as the Company may deem necessary or
advisable to effect the registration of the Registrable Shares.
The Purchasers shall update such information as and when
necessary by written notice to the Company.

     
(b) Liquidated Damages.

		
	 	     
    (i) Delay in Filing or Effectiveness of Registration
    Statement. In the event that the Registration Statement
    is not (A) filed by the Required Filing Date or
    (B) declared effective by the Required Effective Date, the
    Company shall pay to each Purchaser (except for any Purchaser
    whose failure to provide information as required hereunder
    causes a delay in filing or obtaining effectiveness) liquidated
    damages (in addition to the rights and remedies available to
    each Purchaser under applicable law and this Agreement), at a
    rate equal to one percent (1%) per month (pro rata on a 30-day
    basis) of the total purchase price of the Purchased Securities
    purchased by such Purchaser pursuant to this Agreement for the
    period from and including the first day following the Required
    Filing Date or Required Effective Date, as the case may be,
    until, but excluding, the actual filing date or the date the SEC
    declares the Registration Statement effective, as the case may
    be. Such liquidated damages shall be payable in cash within ten
    (10) days of the end of each one (1) month anniversary
    of the Required Filing Date or Required Effective Date, as the
    case may be.

A-13

 

		
	 	     
    (ii) Lapse in Effectiveness of Registration
    Statement. In the event that the Registration Statement
    is filed and declared effective but, during the Registration
    Period, the Registration Statement ceases to be effective or
    useable or the prospectus included in the Registration Statement
    (the “Prospectus”, as amended or
    supplemented by any prospectus supplement and by all other
    amendments thereto and all material incorporated by reference in
    such Prospectus) ceases to be usable, in either case, in
    connection with resales of Registrable Shares, without such
    lapse being cured within fifteen (15) Business Days (the
    “Cure Period”) by a post-effective
    amendment to the Registration Statement, a supplement to the
    Prospectus or a report filed with the SEC pursuant to
    Section 13(a), 13(c), 14 or 15(d) of the Exchange Act that
    cures such lapse, then the Company shall pay to each Purchaser
    liquidated damages (in addition to the rights and remedies
    available to each Purchaser under applicable law and this
    Agreement), for the period from and including the first day
    following the expiration of the Cure Period until, but
    excluding, the earlier of (1) the date on which such
    failure is cured and (2) the date on which the Registration
    Period expires, at a rate equal to one percent (1%) per month
    (pro rata on a 30-day basis) of the total purchase price of the
    Purchased Securities purchased and still held by such Purchaser
    pursuant to this Agreement. Such liquidated damages shall be
    payable in cash within ten (10) days of the end of each one
    (1) month anniversary of the expiration of the Cure Period.

     
(c) Transfer of Registrable Shares After
Registration; Suspension.

		
	 	     
    (i) The Purchasers agree that they will not offer to sell
    or make any sale, assignment, pledge, hypothecation or other
    transfer with respect to the Registrable Shares that would
    constitute a sale within the meaning of the Securities Act
    except pursuant to either (1) the Registration Statement in
    the manner described in the “Plan of Distribution”
    therein, (2) Rule 144 of the Securities Act or
    (3) any other exemption from registration under the
    Securities Act, and that they will promptly notify the Company
    of any changes in the information set forth in the Registration
    Statement after it is prepared regarding the Purchaser or its
    plan of distribution to the extent required by applicable law.
	 
	 	     
    (ii) In addition to any suspension rights under
    paragraph (iii) below, upon the happening of any
    pending corporate development, public filing with the SEC or
    similar event that, in the good faith judgment of the Board of
    Directors, renders it advisable to suspend the use of the
    Prospectus or upon the reasonable request by an underwriter in
    connection with an underwritten public offering of the
    Company’s securities, the Company may suspend use of the
    Prospectus on written notice to each Purchaser (which notice
    will not disclose the content of any material non-public
    information and will indicate the date of the beginning and end
    of the intended period of suspension, if known), in which case
    each Purchaser shall discontinue any disposition of Registrable
    Shares covered by the Registration Statement or Prospectus until
    copies of a supplemented or amended Prospectus are distributed
    to the Purchasers or until the Purchasers are advised in writing
    by the Company that sales of Registrable Shares under the
    applicable Prospectus may be resumed and have received copies of
    any additional or supplemental filings that are incorporated or
    deemed incorporated by reference in any such Prospectus. Any
    such suspension under this paragraph (ii) shall not
    exceed sixty (60) days in any one hundred-eighty
    (180) day period or ninety (90) days in any
    twelve-month period. The suspension and notice thereof described
    in this Section 5(c)(ii) shall be held by each
    Purchaser in strictest confidence and shall not be disclosed by
    such Purchaser.
	 
	 	     
    (iii) Subject to paragraph (iv) below, in the
    event of: (1) any request by the SEC or any other federal
    or state governmental authority during the Registration Period
    for amendments or supplements to a Registration Statement or
    related prospectus or for additional information; (2) the
    issuance by the SEC or any other federal or state governmental
    authority of any stop order suspending the effectiveness of a
    Registration Statement or the initiation of any proceedings for
    that purpose; (3) the receipt by the Company of any
    notification with respect to the suspension of the qualification
    or exemption from qualification of any of the Registrable Shares
    for sale in any jurisdiction or the initiation of any proceeding
    for such purpose; or (4) any event or circumstance which
    necessitates the making of any changes in the Registration
    Statement or Prospectus, or any document incorporated or deemed
    to be incorporated therein by reference, so that, in the case of
    the Registration Statement, it will not contain any untrue
    statement of a material fact or any omission to state a material
    fact required to be stated

A-14

 

		
	 	
    therein or necessary to make the statements therein not
    misleading, and that in the case of the Prospectus, it will not
    contain any untrue statement of a material fact or any omission
    to state a material fact required to be stated therein or
    necessary to make the statements therein, in the light of the
    circumstances under which they were made, not misleading, then
    the Company shall deliver a certificate in writing to the
    Purchasers (the “Suspension Notice”) to
    the effect of the foregoing (which notice will not disclose the
    content of any material non-public information and will indicate
    the date of the beginning and end of the intended period of
    suspension, if known), and, upon receipt of such Suspension
    Notice, the Purchasers will discontinue disposition of
    Registrable Shares covered by to the Registration Statement or
    Prospectus (a “Suspension”) until the
    Purchasers’ receipt of copies of a supplemented or amended
    Prospectus prepared and filed by the Company, or until the
    Purchasers are advised in writing by the Company that the
    current Prospectus may be used and have received copies of any
    additional or supplemental filings that are incorporated or
    deemed incorporated by reference in any such prospectus. In the
    event of any Suspension, the Company will use its commercially
    reasonable efforts to cause the use of the Prospectus so
    suspended to be resumed as soon as possible after delivery of a
    Suspension Notice to the Purchasers. The Suspension and
    Suspension Notice described in this
    Section 5(c)(iii) shall be held in strictest
    confidence by each Purchaser and shall not be disclosed by such
    Purchaser.
	 
	 	     
    (iv) Provided that a Suspension is not then in effect, the
    Purchasers may sell Registrable Shares under the Registration
    Statement, provided that the selling Purchaser arranges for
    delivery of a current Prospectus to the transferee of such
    Registrable Shares to the extent such delivery is required by
    applicable law.
	 
	 	     
    (v) In the event of a sale of Registrable Shares by a
    Purchaser, such Purchaser must also deliver to the
    Company’s transfer agent, with a copy to the Company, a
    certificate of subsequent sale reasonably satisfactory to the
    Company, so that ownership of the Registrable Shares may be
    properly transferred. The Company will cooperate to facilitate
    the timely preparation and delivery of certificates (unless
    otherwise required by applicable law) representing Registrable
    Shares sold.

     
(d) Shareholder Vote; Filing of Proxy
Statement. The Company shall seek, and use its best
efforts to obtain, the Shareholder Approval on or before the
105th day following the Closing Date (the
“Shareholder Approval Date”). The
Company shall call a special meeting of its shareholders (the
“Shareholder Meeting”), shall prepare
and file with the SEC as soon as practical, but in no event
later than thirty (30) days after the Closing Date,
preliminary proxy materials that meet the requirements of
Section 14 of the Exchange Act and the SEC’s rules and
regulations thereunder and which shall set forth a proposal to
seek the Shareholder Approval. The Board of Directors shall
recommend approval thereof by the Company’s shareholders.
The Purchasers may not vote any of the Firm Shares on the
proposal to obtain the Shareholder Approval. The Company shall
mail and distribute its proxy materials for the Shareholder
Meeting to its stockholders at least 30 days prior to the
date of the Shareholder Meeting, shall actively solicit proxies
to vote for the Shareholder Approval and, prior to mailing such
proxy materials to its stockholders, shall retain a proxy
solicitation firm of recognized national standing to assist in
the solicitation. The Company shall furnish (which may be by
e-mail) to the Purchasers and its legal counsel a copy of its
definitive proxy materials for the Shareholder Meeting and any
amendments or supplements thereto promptly after the same are
first used, mailed to shareholders or filed with the SEC, shall
inform the Purchasers of the progress of solicitation of proxies
for such meeting, shall inform the Purchasers of any adjournment
of the Shareholder Meeting and shall report the result of the
vote of stockholders on such proposition at the conclusion of
the Shareholder Meeting.

     
(e) Indemnification. For the purpose of this
Section 5(e), the term “Registration
Statement” shall include any preliminary or final
Prospectus, exhibit, supplement or amendment included in or
relating to the Registration Statement referred to in
Section 5(a).

		
	 	     
    (i) Indemnification by the Company. The
    Company agrees to indemnify and hold harmless each of the
    Purchasers, their respective officers, directors, agents and
    employees, and each person, if any, who controls any Purchaser
    within the meaning of the Securities Act, against any losses,
    claims, damages, liabilities or expenses, joint or several, to
    which such Purchasers, such officers, directors, agents or
    employees, or such controlling persons may become subject, under
    the Securities Act, the Exchange Act

A-15

 

		
	 	
    or any other federal or state statutory law or regulation, or at
    common law or otherwise (including in settlement of any
    litigation, if such settlement is effected with the written
    consent of the Company, which consent shall not be unreasonably
    withheld), insofar as such losses, claims, damages, liabilities
    or expenses (or actions in respect thereof as contemplated
    below) arise out of or are based upon any untrue statement or
    alleged untrue statement of any material fact contained in the
    Registration Statement, the Prospectus, or any amendment or
    supplement to the Registration Statement or Prospectus, or arise
    out of or are based upon the omission or alleged omission to
    state in any of them a material fact required to be stated
    therein or necessary to make the statements in any of them, in
    light of the circumstances under which they were made, not
    misleading, and will reimburse each Purchaser, each of its
    respective directors, officers, agents and employees, and each
    such controlling person for any reasonable out-of-pocket legal
    and other expenses incurred by such Purchaser, such directors,
    officers, agents or employees, or such controlling persons in
    connection with investigating, defending, settling, compromising
    or paying any such loss, claim, damage, liability, expense or
    action; provided, however, that the Company will not be
    liable for any such case to the extent that any such loss,
    claim, damage, liability, expense or action arises out of or is
    based upon (1) an untrue statement or alleged untrue
    statement or omission or alleged omission in the Registration
    Statement, the Prospectus or any amendment to or supplement of
    the Registration Statement or the Prospectus made in reliance
    upon and in conformity with written information furnished to the
    Company by or on behalf of the Purchaser demanding such
    indemnification expressly for use in the Registration Statement
    or the Prospectus, (2) the failure of such Purchaser to
    comply with the covenants and agreements contained in this
    Agreement respecting resale of the Purchased Securities or the
    Warrant Shares or (3) any untrue statement or omission of a
    material fact required to make such statement not misleading in
    any Prospectus that is corrected in any subsequent Prospectus
    that was delivered to such Purchaser before the pertinent sale
    or sales by such Purchaser.
	 
	 	     
    (ii) Indemnification by each Purchaser. Each
    Purchaser agrees, severally and not jointly, to indemnify and
    hold harmless the Company, each of the Company’s directors,
    officers, agents and employees, and each person, if any, who
    controls the Company within the meaning of the Securities Act,
    against any losses, claims, damages, liabilities or expenses to
    which the Company, the Company’s directors, officers,
    agents or employees, or any controlling persons may become
    subject, under the Securities Act, the Exchange Act, or any
    other federal or state statutory law or regulation, or at common
    law or otherwise (including in settlement of any litigation, if
    such settlement is effected with the written consent of such
    Purchaser, which consent shall not be unreasonably withheld)
    insofar as such losses, claims, damages, liabilities or expenses
    (or actions in respect thereof as contemplated below) arise out
    of or are based upon any untrue or alleged untrue statement of
    any material fact contained in the Registration Statement, the
    Prospectus, or any amendment or supplement thereto, or the
    omission or alleged omission to state therein a material fact
    required to be stated therein or necessary to make the
    statements therein not misleading, in each case to the extent,
    but only to the extent, that such untrue statement or alleged
    untrue statement or omission or alleged omission was made in the
    Registration Statement, the Prospectus, or any amendment or
    supplement thereto, in reliance upon and in conformity with
    written information furnished to the Company by or on behalf of
    such Purchaser expressly for use therein, and such Purchaser
    will reimburse the Company, each of its directors, officers,
    agents and employees, and any controlling persons for any
    reasonable legal and other expenses incurred by the Company, its
    directors, officers, agents or employees, or any controlling
    persons in connection with investigating, defending, settling,
    compromising or paying any such loss, claim, damage, liability,
    expense or action; provided, however, that such Purchaser
    shall not be liable for any such untrue or alleged untrue
    statement or omission or alleged omission with respect to which
    such Purchaser has delivered to the Company in writing a
    correction of such untrue or alleged untrue statement or
    omission or alleged omission, before the occurrence of the event
    from which such loss, claim, damage, liability or expense was
    incurred. Notwithstanding the provisions of this
    Section 5(e), such Purchaser shall not be liable for
    any indemnification obligation under this Agreement in excess of
    the aggregate amount of net proceeds received by such Purchaser
    from the sale of the Registrable Shares pursuant to the
    Registration Statement.

A-16

 

		
	 	     
    (iii) Indemnification Procedure.

		
	 	     
    (1) Promptly after receipt by an indemnified party under
    this Section 5(e) of notice of the threat or
    commencement of any action, such indemnified party will, if a
    claim in respect thereof is to be made against an indemnifying
    party under this Section 5(e), promptly notify the
    indemnifying party in writing of the claim and provide to the
    indemnifying party copies of all written documents relating to
    such threatened or commenced action; but the omission so to
    notify the indemnifying party will not relieve it from any
    liability which it may have to any indemnified party for
    contribution or otherwise under the indemnity agreement
    contained in this Section 5(e) or otherwise, to the
    extent it is not prejudiced as a result of such failure.
	 
	 	     
    (2) In case any such action is brought against any
    indemnified party and such indemnified party seeks or intends to
    seek indemnity from an indemnifying party, the indemnifying
    party will be entitled to participate in, and, to the extent
    that it may wish, jointly with all other indemnifying parties
    similarly notified, to assume the defense thereof with counsel
    reasonably satisfactory to such indemnified party; provided,
    however, that if the defendants in any such action include
    both the indemnified party and the indemnifying party and
    counsel to the indemnified party shall have reasonably concluded
    that there may be a conflict between the positions of the
    indemnifying party and the indemnified party in conducting the
    defense of any such action or that there may be legal defenses
    available to it or other indemnified parties that are different
    from or additional to those available to the indemnifying party,
    the indemnified party or parties shall have the right to select
    separate counsel to assume such legal defenses and to otherwise
    participate in the defense of such action on behalf of such
    indemnified party or parties. Upon receipt of notice from the
    indemnifying party to such indemnified party of its election so
    to assume the defense of such action and approval by the
    indemnified party of counsel, the indemnifying party will not be
    liable to such indemnified party under this
    Section 5(e) for any legal or other expenses
    subsequently incurred by such indemnified party in connection
    with the defense thereof unless:

		
	 	     
    a) the indemnified party shall have employed such counsel
    in connection with the assumption of legal defenses in
    accordance with the proviso to the preceding sentence (it being
    understood, however, that the indemnifying party shall not be
    liable for the expenses of more than one separate counsel,
    reasonably approved by such indemnifying party, representing all
    of the indemnified parties who are parties to such
    action); or
	 
	 	     
    b) the indemnifying party shall not have employed counsel
    reasonably satisfactory to the indemnified party to represent
    the indemnified party within a reasonable time after notice of
    commencement of the action against the indemnified party,

		
	 	
    in each of which cases the reasonable out-of-pocket fees and
    expenses of counsel for the indemnified party shall be at the
    expense of the indemnifying party.

		
	 	     
    (iv) Contribution. If the indemnification
    provided for in this Section 5(e) is required by its
    terms but is for any reason held to be unavailable to, or is
    otherwise insufficient to hold harmless, an indemnified party
    under this Section 5(e) with respect to any losses,
    claims, damages, liabilities or expenses referred to in this
    Agreement, then each indemnifying party shall contribute to the
    amount paid or payable by such indemnified party as a result of
    any losses, claims, damages, liabilities or expenses referred to
    in this Agreement:

		
	 	     
    (1) in such proportion as is appropriate to reflect the
    relative faults of the Company and the Purchasers in connection
    with the statements or omissions or inaccuracies in the
    representations and warranties in this Agreement that resulted
    in such losses, claims, damages, liabilities or expenses, as
    well as any other relevant equitable considerations, or
	 
	 	     
    (2) if the allocation provided by clause (1) above is
    not permitted by applicable law, in such proportion as is
    appropriate to reflect not only the relative faults referred to
    in clause (1) above but also the relative benefits received
    by the Company and the Purchasers from the sale of the Purchased
    Securities.

A-17

 

     
The respective relative benefits received by the Company on the
one hand and each Purchaser on the other shall be deemed to be
in the same proportion as the amount to which the consideration
paid by such Purchaser to the Company pursuant to this Agreement
for the Registrable Shares purchased by such Purchaser that were
sold pursuant to the Registration Statement bears to the
difference (the “Difference”) between
the amount such Purchaser paid for the Registrable Shares that
were sold pursuant to the Registration Statement and the amount
received by such Purchaser from such sale. The relative fault of
the Company and each Purchaser shall be determined by reference
to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission or alleged omission
to state a material fact relates to information supplied by the
Company or by such Purchaser and the parties’ relative
intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. The amount paid
or payable by a party as a result of the losses, claims,
damages, liabilities and expenses referred to above shall be
deemed to include, subject to the limitations set forth in
Section 5(e)(iii), any reasonable legal or other
fees or expenses incurred by such party in connection with
investigating or defending any such action or claim. The
provisions set forth in Section 5(e)(iii) with
respect to the notice of the threat or commencement of any
threat or action shall apply if a claim for contribution is to
be made under this Section 5(e)(iv); provided,
however, that no additional notice shall be required with
respect to any threat or action for which notice has been given
under Section 5(e)(iii) for purposes of
indemnification. The Company and each Purchaser agree that it
would not be just and equitable if contribution pursuant to this
Section 5(e)(iv) were determined solely by pro rata
allocation (even if the Purchasers were treated as one entity
for such purpose) or by any other method of allocation which
does not take account of the equitable considerations referred
to in this paragraph. Notwithstanding the provisions of this
Section 5(e)(iv), no Purchaser shall be required to
contribute any amount in excess of the amount by which the
Difference exceeds the amount of any damages that such Purchaser
has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be
entitled to contribution from any person who is not guilty of
such fraudulent misrepresentation. The Purchasers’
obligations to contribute pursuant to this
Section 5(e)(iv) are several and not joint.

     
(f) Rule 144 Information. For two years
after the date of this Agreement, the Company shall file in a
timely manner all reports required to be filed by it under the
Securities Act and the Exchange Act and the rules and
regulations promulgated thereunder and shall take such further
action to the extent required to enable the Purchasers to sell
the Purchased Securities pursuant to Rule 144 under the
Securities Act (as such rule may be amended from time to time).

     
(g) Substitution of Escrow Agent. If the
Company (i) gives notice of removal to the Escrow Agent (as
defined in the Escrow Agreement) or (ii) receives a notice
of resignation from the Escrow Agent, the Company will promptly
provide notice of such removal or resignation to the Purchasers.
If the Escrow Agent is removed or resigns as Escrow Agent under
the Escrow Agreement, the Company agrees to appoint a nationally
recognized banking or financial institution, having a trust
office in Houston, Texas or New York, New York, as the successor
escrow agent under the Escrow Agreement.

     
6. ADVISORY FEE. The Purchasers acknowledge
that the Company intends to pay to C.E. Unterberg, Towbin, as
financial advisor, a fee in respect of the sale of the Purchased
Securities. Each of the parties to this Agreement hereby
represents that, on the basis of any actions and agreements by
it, there are no other brokers or finders entitled to
compensation in connection with the sale of the Purchased
Securities to the Purchasers. The Company shall indemnify and
hold harmless the Purchasers from and against all fees,
commission or other payments owing by the Company to C.E.
Unterberg, Towbin or any other Person acting on behalf of the
Company hereunder. Each Purchaser shall, severally and not
jointly, indemnify and hold harmless the Company from and
against all fees, commission or other payments owing by such
Purchasers to any Person, other than C.E. Unterberg, Towbin,
acting on behalf of the Purchasers hereunder.

A-18

 

     
7. CONDITIONS TO THE PURCHASERS’ OBLIGATIONS AT
CLOSING. The obligations of the Purchasers to consummate
the transactions contemplated herein are subject to the
fulfillment or waiver, on or before the Closing, of each of the
following conditions:

     
(a) Representations and Warranties True. Each
of the representations and warranties of the Company contained
in Section 3 shall be true and correct in all
material respects on and as of the date hereof (provided,
however, that such qualification shall only apply to
representation or warranties not otherwise qualified by
materiality) and on and as of the Closing Date with the same
effect as though such representations and warranties had been
made as of the Closing (except for representations and
warranties that speak as of a specific date).

     
(b) Performance. The Company shall have
performed and complied in all material respects with all
agreements, obligations and conditions contained in this
Agreement that are required to be performed or complied with by
it on or before the Closing and shall have obtained all
approvals, consents and qualifications necessary to complete the
purchase and sale described herein; provided, however, as
provided in Section 2 hereof, the Company may
furnish to each Purchaser a facsimile copy of the warrant
representing the Purchased Warrant and of the stock
certificate(s) representing the Purchased Shares purchased by
such Purchaser no later than the next Business Day following the
Closing Date, with the original stock certificate(s) to be
delivered to such Purchaser by overnight courier no later than
the third (3rd) Business Day following the Closing Date.

     
(c) Company Compliance Certificate. The
Company will have delivered to the Purchasers a certificate
signed on its behalf by its Chief Executive Officer or Chief
Financial Officer, dated as of the Closing Date, certifying that
the conditions specified in Sections 7(a) and
7(b) hereof have been fulfilled.

     
(d) Agreements. The Company shall have
executed and delivered to the Purchasers this Agreement and the
Escrow Agreement.

     
(e) Securities Exemptions. The offer and sale
of the Purchased Securities to the Purchasers pursuant to this
Agreement shall be exempt from the registration requirements of
the Securities Act and the registration and/or qualification
requirements of all applicable state securities laws.

     
(f) Good Standing Certificate. The Company
shall have delivered to the Purchasers a certificate of the
Secretary of State of the State of Texas, dated as of a date
within five days of the date of the Closing, with respect to the
good standing of the Company.

     
(g) Secretary’s Certificate. The Company
shall have delivered to the Purchasers a certificate of the
Company executed by the Company’s Secretary, dated as of
the Closing Date, attaching and certifying to the truth and
correctness of (1) the Articles of Incorporation,
(2) the Bylaws and (3) the resolutions adopted by the
Company’s Board of Directors in connection with the
transactions contemplated by this Agreement.

     
(h) Opinion of Company Counsel. The
Purchasers will have received opinions, on behalf of the
Company, substantially in the form attached hereto as
Exhibit C and dated as of the Closing Date, from
(i) Baker Botts L.L.P., counsel to the Company, and
(ii) Ron Woessner, the Company’s General Counsel.

     
(i) No Statute or Rule Challenging
Transaction. No statute, rule, regulation, executive
order, decree, ruling, injunction, action, proceeding or
interpretation shall have been enacted, entered, promulgated,
endorsed or adopted by any court or governmental authority of
competent jurisdiction or any self-regulatory organization or
the staff of any of the foregoing, having authority over the
matters contemplated hereby which questions the validity of, or
challenges or prohibits the consummation of, any of the
transactions contemplated by this Agreement.

     
(j) Other Actions. The Company shall have
executed such certificates, agreements, instruments and other
documents, and taken such other actions as shall be customary or
reasonably requested by the Purchasers in writing in connection
with the transactions contemplated hereby.

A-19

 

     
8. CONDITIONS TO THE COMPANY’S OBLIGATIONS AT
CLOSING. The obligations of the Company to consummate
the transactions contemplated herein are subject to the
fulfillment or waiver, on or before the Closing, of each of the
following conditions:

     
(a) Representations and Warranties True. Each
of the representations and warranties of the Purchasers
contained in Section 4shall be true and correct in
all material respects on and as of the date hereof and on and as
of the Closing Date with the same effect as though such
representations and warranties had been made as of the Closing
(except for representations and warranties that speak as of a
specific date).

     
(b) Performance. The Purchasers shall have
performed and complied in all material respects with all
agreements, obligations and conditions contained in this
Agreement that are required to be performed or complied with by
them on or before the Closing and shall have obtained all
approvals, consents and qualifications necessary to complete the
purchase and sale described herein.

     
(c) Agreements. Each Purchaser shall have
executed and delivered to the Company this Agreement and
Appendix I and II hereto.

     
(d) Securities Exemptions. The offer and sale
of the Purchased Securities to the Purchasers pursuant to this
Agreement shall be exempt from the registration requirements of
the Securities Act and the registration and/or qualification
requirements of all applicable state securities laws.

     
(e) Payment of Purchase Price. The Purchasers
shall have delivered to the Company by wire transfer of
immediately available funds, full payment of the purchase price
for the Purchased Securities as specified in
Section 1(b).

     
(f) No Statute or Rule Challenging
Transaction. No statute, rule, regulation, executive
order, decree, ruling, injunction, action, proceeding or
interpretation shall have been enacted, entered, promulgated,
endorsed or adopted by any court or governmental authority of
competent jurisdiction or any self-regulatory organization or
the staff of any of the foregoing, having authority over the
matters contemplated hereby which questions the validity of, or
challenges or prohibits the consummation of, any of the
transactions contemplated by this Agreement.

     
(g) Other Actions. The Purchasers shall have
executed such certificates, agreements, instruments and other
documents, and taken such other actions as shall be customary or
reasonably requested by the Company in connection with the
transactions contemplated hereby.

     
9. MISCELLANEOUS.

     
(a) Successors and Assigns. The terms and
conditions of this Agreement will inure to the benefit of and be
binding upon the respective successors and permitted assigns of
the parties. The Company shall not assign this Agreement or any
rights or obligations hereunder without the prior written
consent of each Purchaser holding Purchased Shares and Warrant
Shares (excluding any Purchased Shares or Warrant Shares sold to
the public pursuant to Rule 144 or otherwise). Any
Purchaser may assign its rights under this Agreement to any
person to whom such Purchaser assigns or transfers any of the
Purchased Securities, provided that such transferee agrees in
writing to be bound by the terms and provisions of this
Agreement, and such transfer is in compliance with the terms and
provisions of this Agreement and permitted by federal and state
securities laws.

     
(b) Governing Law. This Agreement will be
governed by and construed and enforced under the internal laws
of the State of New York, without reference to principles of
conflict of laws or choice of laws. EACH PARTY HEREBY
IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO
REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE
HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS
AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

     
(c) Survival. The representations and
warranties of the Company contained in Section 3 of
this Agreement and of the Purchasers contained in
Section 4 of this Agreement shall survive until the
second (2nd) anniversary of the Closing Date.

A-20

 

     
(d) Counterparts. This Agreement may be
executed in two or more counterparts, each of which will be
deemed an original, but all of which together will constitute
one and the same instrument.

     
(e) Headings. The headings and captions used
in this Agreement are used for convenience only and are not to
be considered in construing or interpreting this Agreement. All
references in this Agreement to sections, paragraphs, exhibits
and schedules will, unless otherwise provided, refer to sections
and paragraphs hereof and exhibits and schedules attached
hereto, all of which exhibits and schedules are incorporated
herein by reference.

     
(f) Notices. Any notices and other
communications required or permitted under this Agreement shall
be in writing and shall be delivered (i) personally by hand
or by courier, (ii) mailed by United States first-class
mail, postage prepaid or (iii) sent by facsimile directed
(A) if to any Purchaser, at such Purchaser’s address
or facsimile number set forth on Schedule A to this
Agreement, or at such address or facsimile number as such
Purchaser may designate by giving at least ten
(10) days’ advance written notice to the Company or
(b) if to the Company, to its address or facsimile number
set forth below, or at such other address or facsimile number as
the Company may designate by giving at least ten
(10) days’ advance written notice to the Purchasers.
All such notices and other communications shall be deemed given
upon (i) receipt or refusal of receipt, if delivered
personally, (ii) three days after being placed in the mail,
if mailed, or (iii) confirmation of facsimile transfer, if
faxed.

     
If to the Company:

		
	 	
    Zix Corporation
	 	
    2711 N. Haskell Avenue
	 	
    Suite 2300, LB36
	 	
    Dallas, Texas 75204-2960
	 	
    Attn: Ronald A. Woessner, General Counsel
	 	
    Facsimile: 214.515.7385

     
with a copy to:

		
	 	
    Baker Botts L.L.P.
	 	
    2001 Ross Avenue
	 	
    Dallas, Texas 75201
	 	
    Attn: Sarah Rechter
	 	
    Facsimile: 214.661.4419

     
(g) Amendments and Waivers. This Agreement
may be amended and the observance of any term of this Agreement
may be waived only with the written consent of the Company and
the Purchasers holding at least a majority of the total
aggregate number of the Purchased Shares and Warrant Shares then
outstanding (excluding any shares then already sold to the
public pursuant to Rule 144 or otherwise); provided,
however, that if the amendment or waiver would materially
change or adversely affect the rights or obligations of any
Purchaser under this Agreement, the written consent of the
Company and each Purchaser holding Purchased Shares and Warrant
Shares (excluding any Purchased Shares or Warrant Shares sold to
the public pursuant to Rule 144 or otherwise) shall be
required to effect such amendment or waiver. Any amendment
effected in accordance with this Section 9(g) will
be binding upon the Purchasers, the Company and their respective
successors and assigns.

     
(h) Severability. If any provision of this
Agreement is held to be unenforceable under applicable law, such
provision will be excluded from this Agreement and the balance
of the Agreement will be interpreted as if such provision were
so excluded and will be enforceable in accordance with its terms.

     
(i) Entire Agreement. This Agreement,
together with all exhibits and schedules hereto, constitute the
entire agreement and understanding of the parties with respect
to the subject matter hereof and supersede any and all prior
negotiations, correspondence, agreements, understandings, duties
or obligations between the parties with respect to the subject
matter hereof.

A-21

 

     
(j) Further Assurances. From and after the
date of this Agreement, upon the request of the Company or the
Purchasers, the Company and the Purchasers will execute and
deliver such instruments, documents or other writings, and take
such other actions, as may be reasonably necessary or desirable
to confirm and carry out and to effectuate fully the intent and
purposes of this Agreement.

     
(k) Meaning of Include and Including.
Whenever in this Agreement the word “include” or
“including” is used, it shall be deemed to mean
“include, without limitation” or “including,
without limitation,” as the case may be, and the language
following “include” or “including” shall not
be deemed to set forth an exhaustive list.

     
(l) Fees, Costs and Expenses. Except as
otherwise provided for in this Agreement, all fees, costs and
expenses (including attorneys’ fees and expenses) incurred
by any party hereto in connection with the preparation,
negotiation and execution of this Agreement and the exhibits and
schedules hereto and the consummation of the transactions
contemplated hereby and thereby (including the costs associated
with any filings with, or compliance with any of the
requirements of any governmental authorities), shall be the sole
and exclusive responsibility of such party.

     
(m) 8-K Filing and Publicity. As soon as
practicable following the execution of this Agreement, but in no
event later than 8:30 a.m., eastern time, on the day
following the Execution Date, the Company shall file a Current
Report on Form 8-K with the SEC describing the terms of the
transactions contemplated by this Agreement and attaching this
Agreement and the press release referred to below as exhibits to
such filing (the “8-K Filing” including
all attachments). Neither the Company nor any Purchaser shall
issue any press releases or any other public statements (other
than any filings required pursuant to applicable securities
laws) with respect to the transactions contemplated by this
Agreement; provided, however, that the Company shall be
entitled, without the prior approval of any Purchaser, to issue
any press release or make any other public disclosure (including
a press release (concerning the offering of the Purchased
Securities) pursuant to Rule 135(c) under the Securities
Act) with respect to such transactions (i) in substantial
conformity with the 8-K Filing and (ii) as is required
by applicable laws and regulations; and, provided further, that
no such release may identify a Purchaser unless such Purchaser
has consented thereto in writing, or as required by law.

     
(n) Waivers. No waiver by any party to this
Agreement of any default with respect to any provision,
condition or requirement of this Agreement shall be deemed to be
a continuing waiver in the future or a waiver of any other
provision, condition or requirement hereof, nor shall any delay
or omission of any party to exercise any right hereunder in any
manner impair the exercise of any such right accruing to it
thereafter.

     
(o) Stock Splits, Dividends and other Similar
Events. The provisions of this Agreement shall be
appropriately adjusted to reflect any stock split, stock
dividend, reorganization or other similar event that may occur
with respect to the Company after the date hereof.

     
(p) Remedies. In addition to being entitled
to exercise all rights provided herein or granted by law,
including recovery of damages, each Purchaser and the Company
will be entitled to specific performance under this Agreement.
The parties agree that monetary damages may not be adequate
compensation for any loss incurred by reason of any breach of
obligations described in the foregoing sentence and hereby
agrees to waive in any action for specific performance of any
such obligation the defense that a remedy at law would be
adequate.

[Remainder of page intentionally left blank.]

A-22

 

     
IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date and year first above written.

		
	 	
    ZIX CORPORATION

			
	 	By: 	
    /s/ Brad Almond

		
	 	
     

	 	
    Name: Brad Almond
	 	
    Title:   Chief Financial Officer

[PURCHASER SIGNATURE PAGES TO FOLLOW]

Signature Page to Securities Purchase Agreement

A-23

 

SIGNATURE PAGE TO SECURITIES PURCHASE AGREEMENT

DATED AS OF AUGUST 9, 2005

BY AND AMONG

ZIX CORPORATION

AND EACH PURCHASER NAMED THEREIN

     
The undersigned hereby executes and delivers to Zix Corporation,
the Securities Purchase Agreement (the
“Agreement”) to which this signature
page is attached effective as of the date of the Agreement,
which Agreement and signature page, together with all
counterparts of such Agreement and signature pages of the other
Purchasers named in such Agreement, shall constitute one and the
same document in accordance with the terms of such Agreement.

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    250,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    82,500
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    250,000
	 	 	 	 	 
	 	 	
    Schottenfeld Qualified Associates, L.P.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Richard Schottenfeld	 	 
	 	 	 
	 	 	
    Name:	 	
    Richard Schottenfeld	 	 
	 	 	 
	 	 	
    Title:	 	
    Managing Member	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    33,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Cranshire Capital, L.P.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Mitchell P. Kopin	 	 
	 	 	 
	 	 	
    Name:	 	
    Mitchell P. Kopin	 	 
	 	 	 
	 	 	
    Title:	 	
    President of Downshire Capital, Inc.,
	 	 	 
	 	 	 	 	
    the General Partner of the Purchaser
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    26,400
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Nite Capital LP	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Keith A. Goodman	 	 
	 	 	 
	 	 	
    Name:	 	
    Keith A. Goodman	 	 
	 	 	 
	 	 	
    Title:	 	
    Manager of the General	 	 
	 	 	 
	 	 	 	 	
    Partner of the Purchaser
	 	 	 

A-24

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    33,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Bluegrass Growth Fund, LP	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Brian Shatz	 	 
	 	 	 
	 	 	
    Name:	 	
    Brian Shatz	 	 
	 	 	 
	 	 	
    Title:	 	
    Managing Member – Bluegrass
	 	 	 
	 	 	 	 	
    Growth Fund, LLC
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    26,400
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Alpha Capital AG	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Konrad Ackermann	 	 
	 	 	 
	 	 	
    Name:	 	
    Konrad Ackermann	 	 
	 	 	 
	 	 	
    Title:	 	
    Director	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    260,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    85,800
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    260,000
	 	 	 	 	 
	 	 	
    Gryphon Master Fund, L.P.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ E.B. Lyon IV	 	 
	 	 	 
	 	 	
    Name:	 	
    E.B. Lyon IV	 	 
	 	 	 
	 	 	
    Title:	 	
    Authorized Agent	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    140,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    46,200
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    140,000
	 	 	 	 	 
	 	 	
    GSSF Master Fund, LP	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ E.B. Lyon IV	 	 
	 	 	 
	 	 	
    Name:	 	
    E.B. Lyon IV	 	 
	 	 	 
	 	 	
    Title:	 	
    Authorized Agent	 	 
	 	 	 

A-25

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    115,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    37,950
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    115,000
	 	 	 	 	 
	 	 	
    Precept Capital Master Fund, G.P.	 	 
	 	 	 
	 	 	
    “Purchaser”	 	 	 	 
	 	 	
    By:	 	
    its agent & attorney in fact, Precept Capital Management, LP
	 	 	
    By:	 	
    its General Partner, Precept Management LLC
	 	 	
    Signature:	 	
    /s/ D. Blair Baker	 	 
	 	 	 
	 	 	
    Name:	 	
    D. Blair Baker	 	 
	 	 	 
	 	 	
    Title:	 	
    President and CEO	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    66,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    JMG Capital Partners, LP	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Jonathan Glaser	 	 
	 	 	 
	 	 	
    Name:	 	
    Jonathan Glaser	 	 
	 	 	 
	 	 	
    Title:	 	
    Member Manager of the GP	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    66,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    JMG Triton Offshore Fund, Ltd.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Jonathan Glaser	 	 
	 	 	 
	 	 	
    Name:	 	
    Jonathan Glaser	 	 
	 	 	 
	 	 	
    Title:	 	
    Member Manager of the
	 	 	 
	 	 	 	 	
    Investment Manager
	 	 	 

A-26

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    600,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    198,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    600,000
	 	 	 	 	 
	 	 	
    Heartland Group, Inc. solely on behalf of the Heartland Value
    Plus Fund
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Nicole J. Best	 	 
	 	 	 
	 	 	
    Name:	 	
    Nicole J. Best	 	 
	 	 	 
	 	 	
    Title:	 	
    Treasurer and Principal
	 	 	 
	 	 	 	 	
    Accounting Officer
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    33,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Diamond Opportunity Fund, LLC	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Rob Rubin	 	 
	 	 	 
	 	 	
    Name:	 	
    Rob Rubin	 	 
	 	 	 
	 	 	
    Title:	 	
    Principal	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    2,000,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    660,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    2,000,000
	 	 	 	 	 
	 	 	
    Andrew J. Hoff	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Andrew J. Hoff	 	 
	 	 	 
	 	 	
    Name:	 	
    Andrew J. Hoff	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    800,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    264,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    800,000
	 	 	 	 	 
	 	 	
    George W. Haywood	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ George W. Haywood	 	 
	 	 	 
	 	 	
    Name:	 	
    George W. Haywood	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-27

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    132,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    Superius Securities GP Profit Sharing Plan
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ James Hudgins	 	 
	 	 	 
	 	 	
    Name:	 	
    James Hudgins	 	 
	 	 	 
	 	 	
    Title:	 	
    Trustee	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    22,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    7,260
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    22,000
	 	 	 	 	 
	 	 	
    Arthur R. Puglia	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Arthur R. Puglia	 	 
	 	 	 
	 	 	
    Name:	 	
    Arthur R. Puglia	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    6,600
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    Manickam Ganesh	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Manickam Ganesh	 	 
	 	 	 
	 	 	
    Name:	 	
    Manickam Ganesh	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    6,600
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    William McCauley	 	 
	 	 	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ William McCauley	 	 
	 	 	 
	 	 	
    Name:	 	
    William McCauley	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-28

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    40,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    13,200
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    40,000
	 	 	 	 	 
	 	 	
    Alapatt P. Thomas, MD	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Alapatt P. Thomas, MD	 	 
	 	 	 
	 	 	
    Name:	 	
    Alapatt P. Thomas, MD	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    22,600
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    7,458
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    22,600
	 	 	 	 	 
	 	 	
    Hersey Norris	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Hersey Norris	 	 
	 	 	 
	 	 	
    Name:	 	
    Hersey Norris	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    37,400
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    12,342
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    37,400
	 	 	 	 	 
	 	 	
    Howard Raphaelson	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Howard Raphaelson	 	 
	 	 	 
	 	 	
    Name:	 	
    Howard Raphaelson	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased	 	
    6,600
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    20,000
	 	 	 	 	 
	 	 	
    Ronald S. Carvalho	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Ronald S. Carvalho	 	 
	 	 	 
	 	 	
    Name:	 	
    Ronald S. Carvalho	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-29

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    30,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    9,900
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    30,000
	 	 	 	 	 
	 	 	
    William Leggio	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ William Leggio	 	 
	 	 	 
	 	 	
    Name:	 	
    William Leggio	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    139,600
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    46,068
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    139,600
	 	 	 	 	 
	 	 	
    Capra Global Managed Assets, Ltd.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ James R. Capra	 	 
	 	 	 
	 	 	
    Name:	 	
    James R. Capra	 	 
	 	 	 
	 	 	
    Title:	 	
    Director	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    60,400
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    19,932
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    60,400
	 	 	 	 	 
	 	 	
    CGMA Special Accounts, LLC	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ James R. Capra	 	 
	 	 	 
	 	 	
    Name:	 	
    James R. Capra	 	 
	 	 	 
	 	 	
    Title:	 	
    Director	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    66,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Antonio R. Sanchez, Jr.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Antonio R. Sanchez, Jr.	 	 
	 	 	 
	 	 	
    Name:	 	
    Antonio R. Sanchez, Jr.	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-30

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    66,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Con Egan	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Con Egan	 	 
	 	 	 
	 	 	
    Name:	 	
    Con Egan	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    150,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    49,500
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    150,000
	 	 	 	 	 
	 	 	
    Conor O’Driscoll	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Conor O’Driscoll	 	 
	 	 	 
	 	 	
    Name:	 	
    Conor O’Driscoll	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    120,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    39,600
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    120,000
	 	 	 	 	 
	 	 	
    Fulvio Dobrich	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Fulvio Dobrich	 	 
	 	 	 
	 	 	
    Name:	 	
    Fulvio Dobrich	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    33,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    John M. Craig	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    John M. Craig	 	 
	 	 	 
	 	 	
    Name:	 	
    John M. Craig	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-31

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    60,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    19,800
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    60,000
	 	 	 	 	 
	 	 	
    Anthony J. Pannella	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Anthony J. Pannella	 	 
	 	 	 
	 	 	
    Name:	 	
    Anthony J. Pannella	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    60,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    19,800
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    60,000
	 	 	 	 	 
	 	 	
    Stephen D. Baska	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Stephen D. Baska	 	 
	 	 	 
	 	 	
    Name:	 	
    Stephen D. Baska	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    33,446
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    11,037
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    33,446
	 	 	 	 	 
	 	 	
    Antonio R. Sanchez, III	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Antonio R. Sanchez, III	 	 
	 	 	 
	 	 	
    Name:	 	
    Antonio R. Sanchez, III	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    40,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    13,200
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    40,000
	 	 	 	 	 
	 	 	
    Robert P. Janke and Debbie Hansman	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Robert P. Janke /s/ Debbie Hansman
	 	 	 
	 	 	
    Name:	 	
    Robert P. Janke    Debbie Hansman
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-32

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    16,724
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    5,519
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    16,724
	 	 	 	 	 
	 	 	
    Richard D. Spurr	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Richard D. Spurr	 	 
	 	 	 
	 	 	
    Name:	 	
    Richard D. Spurr	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    3,346
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    1,104
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    3,346
	 	 	 	 	 
	 	 	
    Bradley C. Almond	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Bradley C. Almond	 	 
	 	 	 
	 	 	
    Name:	 	
    Bradley C. Almond	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    3,346
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    1,104
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    3,346
	 	 	 	 	 
	 	 	
    Charles N. Kahn III	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Charles N. Kahn III	 	 
	 	 	 
	 	 	
    Name:	 	
    Charles N. Kahn III	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    33,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    100,000
	 	 	 	 	 
	 	 	
    Anthony V. Milone	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Anthony V. Milone	 	 
	 	 	 
	 	 	
    Name:	 	
    Anthony V. Milone	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 

A-33

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    50,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    16,500
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    50,000
	 	 	 	 	 
	 	 	
    Sapphire Capital Partners, L.P.	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Matthew Buten	 	 
	 	 	 
	 	 	
    Name:	 	
    Matthew Buten	 	 
	 	 	 
	 	 	
    Title:	 	
    Managing Member	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    26,400
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    80,000
	 	 	 	 	 
	 	 	
    Reuben Taub	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Reuben Taub	 	 
	 	 	 
	 	 	
    Name:	 	
    Reuben Taub	 	 
	 	 	 
	 	 	
    Title:	 	
    N/A	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    132,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    C.E. Unterberg, Towbin Capital Partners I, L.P.
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Andrew Arno	 	 
	 	 	 
	 	 	
    Name:	 	
    Andrew Arno	 	 
	 	 	 
	 	 	
    Title:	 	
    Managing Member of the GP	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    23,920
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    7,894
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    23,920
	 	 	 	 	 
	 	 	
    SRB Greenway Capital, L.P.	 	 
	 	 	 
	 	 	
    “Purchaser” By:	 	
    

    SRB Management, L.P., General Partner
	 	 	 
	 	 	
    By:	 	
    BC Advisors, L.L.C., General Partner
	 	 	 
	 	 	
    Signature:	 	
    /s/ Stephen R. Becker	 	 
	 	 	 
	 	 	
    Name:	 	
    Stephen R. Becker	 	 
	 	 	 
	 	 	
    Title:	 	
    Member	 	 
	 	 	 

A-34

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    162,680
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    53,684
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    162,680
	 	 	 	 	 
	 	 	
    SRB Greenway Capital (QP), L.P.	 	 
	 	 	 
	 	 	
    “Purchaser”	 	 	 	 
	 	 	 
	 	 	
    By:	 	
    SRB Management, L.P., General Partner
	 	 	 
	 	 	
    By:	 	
    BC Advisors, L.L.C., General Partner
	 	 	 
	 	 	
    Signature:	 	
    /s/ Stephen R. Becker	 	 
	 	 	 
	 	 	
    Name:	 	
    Stephen R. Becker	 	 
	 	 	 
	 	 	
    Title:	 	
    Member	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    13,400
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    4,422
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    13,400
	 	 	 	 	 
	 	 	
    SRB Greenway Offshore Operating Fund, L.P.
	 	 	 
	 	 	
    “Purchaser”	 	 	 	 
	 	 	 
	 	 	
    By:	 	
    SRB Management, L.P., General Partner
	 	 	 
	 	 	
    By:	 	
    BC Advisors, L.L.C., General Partner
	 	 	 
	 	 	
    Signature:	 	
    /s/ Steve Becker	 	 
	 	 	 
	 	 	
    Name:	 	
    Steve Becker	 	 
	 	 	 
	 	 	
    Title:	 	
    Member	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    66,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    200,000
	 	 	 	 	 
	 	 	
    Shea Ventures, LLC	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ John C. Morrissey	 	 
	 	 	 
	 	 	
    Name:	 	
    John C. Morrissey	 	 
	 	 	 
	 	 	
    Title:	 	
    Vice President	 	 
	 	 	 

A-35

 

	 	 	 	 	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    2,250,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    742,500
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    2,250,000
	 	 	 	 	 
	 	 	
    Amulet Limited	 	 
	 	 	 
	 	 	
    “Purchaser”	 	 	 	 
	 	 	 
	 	 	
    By:	 	
    Amaranth Advisors L.L.C., its Trading Advisor
	 	 	 
	 	 	
    Signature:	 	
    /s/ Karl J. Wachter	 	 
	 	 	 
	 	 	
    Name:	 	
    Karl J. Wachter	 	 
	 	 	 
	 	 	
    Title:	 	
    Authorized Signatory	 	 
	 	 	 
	 	 	
    Number of Purchased Shares Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    Number of Purchased Warrants Purchased:	 	
    132,000
	 	 	 	 	 
	 	 	
    Total Number of Units Purchased:	 	
    400,000
	 	 	 	 	 
	 	 	
    Omicron Master Trust	 	 
	 	 	 
	 	 	
    “Purchaser” Signature:	 	
    

    /s/ Oliver Morali	 	 
	 	 	 
	 	 	
    Name:	 	
    Oliver Morali	 	 
	 	 	 
	 	 	
    Title:	 	
    Managing Partner, Investment Advisor
	 	 	 

A-36

 

SCHEDULE A

SCHEDULE OF PURCHASERS

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Schottenfeld Qualified
Associates, L.P.

800 Third Avenue

10th Floor

New York, New York 10022

Tel: 212.300.2218

Fax: 212.838.5820

Attn: Richard Schottenfeld

	 	 	250,000	 	 	 	150,000	 	 	 	100,000	 	 	 	82,500	 	 	 	49,500	 	 	 	33,000	 	 	 	375,000.00	 	 	 	250,000.00	 	 	 	625,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Cranshire Capital, L.P.

666 Dundee Road, Suite 1901

Northbrook, IL 60062

Tel: 847.562.9030

Fax: 847.562.9031

Attn: Mitchell Kopin

	 	 	100,000	 	 	 	60,000	 	 	 	40,000	 	 	 	33,000	 	 	 	19,800	 	 	 	13,200	 	 	 	150,000.00	 	 	 	100,000.00	 	 	 	250,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Nite Capital LP

100 East Cook Avenue

Suite 201

Libertyville, IL 60048

Tel: 847.968.2655

Fax: 847.968.2648

Attn: Keith A. Goodman

	 	 	80,000	 	 	 	48,000	 	 	 	32,000	 	 	 	26,400	 	 	 	15,840	 	 	 	10,560	 	 	 	120,000.00	 	 	 	80,000.00	 	 	 	200,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Bluegrass Growth Fund, LP

122 E. 42nd Street

Suite 2606

New York, NY 10168

Tel: 212.682.2392

Fax: 212.202.9624

Attn: Brian Shatz

	 	 	100,000	 	 	 	60,000	 	 	 	40,000	 	 	 	33,000	 	 	 	19,800	 	 	 	13,200	 	 	 	150,000.00	 	 	 	100,000.00	 	 	 	250,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Alpha Capital AG

c/o LH Financial

160 Central Park South

Suite 2701

New York, NY 10019

Tel: 212.586.8224

Fax: 212.586.8244

Attn: Joseph Hammer

	 	 	80,000	 	 	 	48,000	 	 	 	32,000	 	 	 	26,400	 	 	 	15,840	 	 	 	10,560	 	 	 	120,000.00	 	 	 	80,000.00	 	 	 	200,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Gryphon Master Fund, L.P.

100 Crescent Court

Suite 490

Dallas, Texas 75201

Tel: 214.871.6752

Fax: 214.871.6711

Attn: Mr. Tim Stobaugh

	 	 	260,000	 	 	 	156,000	 	 	 	104,000	 	 	 	85,800	 	 	 	51,480	 	 	 	34,320	 	 	 	390,000.00	 	 	 	260,000.00	 	 	 	650,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	GSSF Master Fund, LP

100 Crescent Court

Suite 490

Dallas, Texas 75201

Tel: 214.871.6752

Fax: 214.871.6711

Attn: Mr. Tim Stobaugh

	 	 	140,000	 	 	 	84,000	 	 	 	56,000	 	 	 	46,200	 	 	 	27,720	 	 	 	18,480	 	 	 	210,000.00	 	 	 	140,000.00	 	 	 	350,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Precept Capital Master
Fund, G.P.

100 Crescent Court

Suite 850

Dallas, Texas 75201

Tel: 214.880.7444

Fax: 214.880.0082

Attn: John Bateman

	 	 	115,000	 	 	 	69,000	 	 	 	46,000	 	 	 	37,950	 	 	 	22,770	 	 	 	15,180	 	 	 	172,500.00	 	 	 	115,000.00	 	 	 	287,500.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	JMG Capital Partners, LP

11601 Wilshire Blvd.

Suite 2180

Los Angeles, CA 90025

Tel: 310.601.2825

Fax: 310.61.2890

Attn: Mr. Jonathan Glaser

	 	 	200,000	 	 	 	120,000	 	 	 	80,000	 	 	 	66,000	 	 	 	39,600	 	 	 	26,400	 	 	 	300,000.00	 	 	 	200,000.00	 	 	 	500,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	JMG Triton Offshore
Fund, Ltd.

11601 Wilshire Blvd.

Suite 2180

Los Angeles, CA 90025

Tel: 310.601.2825

Fax: 310.61.2890

Attn: Mr. Jonathan Glaser

	 	 	200,000	 	 	 	120,000	 	 	 	80,000	 	 	 	66,000	 	 	 	39,600	 	 	 	26,400	 	 	 	300,000.00	 	 	 	200,000.00	 	 	 	500,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Heartland Value Plus
Fund c/o

Brown Brothers

Harriman & Co.

c/o Heartland Group, Inc.

789 N. Water St., Suite 500

Milwaukee, WI 53202

Tel: 414.977.8748

Fax: 414.347.0364

Attn: Nicole J. Best

	 	 	600,000	 	 	 	360,000	 	 	 	240,000	 	 	 	198,000	 	 	 	118,800	 	 	 	79,200	 	 	 	900,000.00	 	 	 	600,000.00	 	 	 	1,500,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Diamond Opportunity
Fund, LLC

500 Skokie Blvd.

Suite 310

Northbrook, IL 60062

Tel: 847.559.1002

Fax: 847.919.4410

Attn: Richard Marks

	 	 	100,000	 	 	 	60,000	 	 	 	40,000	 	 	 	33,000	 	 	 	19,800	 	 	 	13,200	 	 	 	150,000.00	 	 	 	100,000.00	 	 	 	250,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Andrew J. Hoff

731 N. Jackson Street

Suite 812

Milwaukee, WI 53202

Tel: 414.276.8576

Fax: 414.831.0122

	 	 	2,000,000	 	 	 	1,200,000	 	 	 	800,000	 	 	 	660,000	 	 	 	396,000	 	 	 	264,000	 	 	 	3,000,000.00	 	 	 	2,000,000.00	 	 	 	5,000,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	George W. Haywood

3023 Q. Street, N.W.

Washington, D.C. 20007

Tel: 917.699.3522

Fax: 516.937.5050

(Attn: Gary Moomjian)

	 	 	800,000	 	 	 	480,000	 	 	 	320,000	 	 	 	264,000	 	 	 	158,400	 	 	 	105,600	 	 	 	1,200,000.00	 	 	 	800,000.00	 	 	 	2,000,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Superius Securities
GP Profit
Sharing Plan

94 Grand Avenue

Englewood, NJ 07631

Tel: 201.568.8800

Fax: 201.568.9392

Attn: Mr. James Hudgins

	 	 	400,000	 	 	 	240,000	 	 	 	160,000	 	 	 	132,000	 	 	 	79,200	 	 	 	52,800	 	 	 	600,000.00	 	 	 	400,000.00	 	 	 	1,000,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Arthur R. Puglia

23499 Columbus Rd.

Columbus, NJ 08022
Tel: 609.298.1809
Fax: 609.291.0942

	 	 	22,000	 	 	 	13,200	 	 	 	8,800	 	 	 	7,260

(4,400 /

2,860)*	 	 	 	4,356

(2,640 /

1,716)*	 	 	 	2,904

(1,760 /

1,144)*	 	 	 	33,000.00	 	 	 	22,000.00	 	 	 	55,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Manickam Ganesh

5 Eccleston Court

Montville, NJ 07045

Tel: 973.263.2345

Fax: 973.669.1687

	 	 	20,000	 	 	 	12,000	 	 	 	8,000	 	 	6,600

(4,000 /

2,600)*
	 	3,960

(2,400 /

1,560)*
	 	2,640

(1,600 /

1,040)*
	 	 	30,000.00	 	 	 	20,000.00	 	 	 	55,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	William McCauley

492 Ackerson Avenue

Wyckoff, NJ 07481

Tel: 201.891.7798

	 	 	20,000	 	 	 	12,000	 	 	 	8,000	 	 	6,600

(4,000 /

2,600)*
	 	3,960

(2,400 /

1,560)*
	 	 	2,640

(1,600 /

1,040)*	 	 	 	30,000.00	 	 	 	20,000.00	 	 	 	55,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Alapatt P. Thomas, MD

9 Manor Drive

Warren, NJ 07059

Tel: 973.374.4187

Fax: 973.374.3473

	 	 	40,000	 	 	 	24,000	 	 	 	16,000	 	 	13,200

(8,000 /

5,200)*
	 	7,920

(4,800 /

3,120)*
	 	5,280

(3,200 /

2,080)*
	 	 	60,000.00	 	 	 	40,000.00	 	 	 	100,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Hersey Norris

8553 Caratoke Hwy, US
Hwy 158

Harbinger, NC 27941

Tel: 252.491.2673

Fax: 252.991.8302

	 	 	22,600	 	 	 	13,560	 	 	 	9,040	 	 	7,458

(4,458 /

3,000)*
	 	4,475

(2,712 /

1,763)*
	 	2,983

(1,746 /

1,237)*
	 	 	33,900.00	 	 	 	22,600.00	 	 	 	56,500.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Howard Raphaelson

10 Chauncey Place

Woodbury, NY 11797

Tel: 212.268.3222

Fax: 212.268.3313

	 	 	37,400	 	 	 	22,440	 	 	 	14,960	 	 	12,342

(7,342 /

5,000)*
	 	7,405

(4,488 /

2,917)*
	 	4,937

(2,854 /

2,083)*
	 	 	56,100.00	 	 	 	37,400.00	 	 	 	93,500.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Ronald S. Carvalho

107 Osborne Place

Cranford, NJ 07016

Tel: 908.208.3060

Fax: 908.709.1886

	 	 	20,000	 	 	 	12,000	 	 	 	8,000	 	 	6,600

(4,000 /

2,600)*
	 	3,960

(2,400 /

1,560)*
	 	2,640

(1,600 /

1,040)*
	 	 	30,000.00	 	 	 	20,000.00	 	 	 	55,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	William R. Leggio

2 Charlton Street

Apt. 11K

New York, NY 10014

Tel: 212.966.4443

Fax: 212.431.9369

	 	 	30,000	 	 	 	18,000	 	 	 	12,000	 	 	9,900

(6,000 /

3,900)*
	 	5,940

(3,600 /

2,340)*
	 	3,960

(2,400 /

1,560)*
	 	 	45,000.00	 	 	 	30,000.00	 	 	 	75,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Capra Global Managed
Assets, Ltd.

c/o Walkers SPV Limited

P.O. Box 908GT, Walker
House

Mary Street, Georgetown

Grand Cayman, Cayman
Islands

Tel: 914.925.7750

Fax: 914.925.8856

Attn: Mr. John Briggs

	 	 	139,600	 	 	 	83,760	 	 	 	55,840	 	 	 	46,068	 	 	 	27,641	 	 	 	18,427	 	 	 	209,400.00	 	 	 	139,600.00	 	 	 	349,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	CGMA Special Accounts,
LLC

c/o Walkers SPV Limited

P.O. Box 908GT, Walker
House

Mary Street, Georgetown

Grand Cayman, Cayman
Islands

Tel: 914.925.7750

Fax: 914.925.8856

Attn: Mr. John Briggs

	 	 	60,400	 	 	 	36,240	 	 	 	24,160	 	 	 	19,932	 	 	 	11,959	 	 	 	7,973	 	 	 	90,600.00	 	 	 	60,400.00	 	 	 	151,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Antonio R. Sanchez, Jr.

1920 Sandman Street

Laredo, Texas 78041

Tel: 956.722.8092

Fax: 956.722.1017

	 	 	200,000	 	 	 	120,000	 	 	 	80,000	 	 	 	66,000	 	 	 	39,600	 	 	 	26,400	 	 	 	300,000.00	 	 	 	200,000.00	 	 	 	500,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Con Egan

225 East 70th

Penthouse B

New York, NY 10021

Tel: 212.317.4815

Fax: 212.317.4819

	 	 	200,000	 	 	 	120,000	 	 	 	80,000	 	 	 	66,000	 	 	 	39,600	 	 	 	26,400	 	 	 	300,000.00	 	 	 	200,000.00	 	 	 	500,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Conor O’Driscoll

355 Locust Avenue

Rye, NY 10580

Tel: 916.967.8726

Fax: 212.317.4819

	 	 	150,000	 	 	 	90,000	 	 	 	60,000	 	 	 	49,500	 	 	 	29,700	 	 	 	19,800	 	 	 	225,000.00	 	 	 	150,000.00	 	 	 	375,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Fulvio Dobrich

c/o Galileo Asset
Management

570 Lexington Avenue

24th Floor

New York, NY 10022

Tel: 212.812.7661

Fax: 212.812.7666

	 	 	120,000	 	 	 	72,000	 	 	 	48,000	 	 	 	39,600	 	 	 	23,760	 	 	 	15,840	 	 	 	180,000.00	 	 	 	120,000.00	 	 	 	300,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	John M. Craig

46 Cheese Spring Road

Wilton, CT 06897

Tel: 203.761.9846

Fax: 203.761.9846

	 	 	100,000	 	 	 	60,000	 	 	 	40,000	 	 	 	33,000	 	 	 	19,800	 	 	 	13,200	 	 	 	150,000.00	 	 	 	100,000.00	 	 	 	250,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Anthony J. Pannella

Wilentz, Goldman &
Spitzer PA

90 Woodbridge Center
Drive

Woodbridge, NJ 07095

Tel: 732.855.6460

Fax: 732.726.6528

	 	 	60,000	 	 	 	36,000	 	 	 	24,000	 	 	 	19,800	 	 	 	11,880	 	 	 	7,920	 	 	 	90,000.00	 	 	 	60,000.00	 	 	 	150,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Stephen D. Baksa

2 Woods Lane

Chatham, NJ 07928

Tel: 973.635.4710

	 	 	60,000	 	 	 	36,000	 	 	 	24,000	 	 	 	19,800	 	 	 	11,880	 	 	 	7,920	 	 	 	90,000.00	 	 	 	60,000.00	 	 	 	150,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Antonio R. Sanchez,
III†

1111 Bagby

Suite 1600

Houston, Texas 77002

Tel: 713.783.8000

Fax: 713.783.0915

	 	 	33,446	 	 	 	20,068	 	 	 	13,378	 	 	 	11,037	 	 	 	6,623	 	 	 	4,414	 	 	 	60,003.32	 	 	 	40,000.22	 	 	 	100,003.54	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Robert P. Janke and
Debbie Hansman

121 Highland Blvd.

Bozeman, MT 59715

Tel: 406.586.7537

Attn: Mr. Robert Janke

	 	 	40,000	 	 	 	24,000	 	 	 	16,000	 	 	 	13,200	 	 	 	7,920	 	 	 	5,280	 	 	 	60,000.00	 	 	 	40,000.00	 	 	 	100,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Richard D. Spurr†

2711 North Haskell

Suite 2200, LB 36

Dallas, Texas 75204

Tel: 214.370.2031

Fax: 214.370.2295

	 	 	16,724	 	 	 	10,034	 	 	 	6,690	 	 	 	5,519	 	 	 	3,312	 	 	 	2,207	 	 	 	30,001.66	 	 	 	20,003.10	 	 	 	50,004.76	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Bradley Christian
Almond†

1541 El Campo

Dallas, Texas 75218

Tel: 214.370.2097

	 	 	3,346	 	 	 	2,008	 	 	 	1,338	 	 	 	1,104	 	 	 	663	 	 	 	441	 	 	 	6,003.92	 	 	 	4,000.62	 	 	 	10,004.54	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Charles N. Kahn, III†

4545 Glebe Road

Arlington, VA 22207

Tel: 202.624.1534

Fax: 202.737.6832

	 	 	3,346	 	 	 	2,008	 	 	 	1,338	 	 	 	1,104	 	 	 	663	 	 	 	441	 	 	 	6,003.92	 	 	 	4,000.62	 	 	 	10,004.54	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Anthony V. Milone

1 Hillview Court

Armonk, NY 10504

or

c/o HAN

1305 Maroneck Avenue

White Plains, NY 10605

Tel: 914.328.3300 x19

Fax: 914.328.3380

	 	 	100,000	 	 	 	60,000	 	 	 	40,000	 	 	 	33,000	 	 	 	19,800	 	 	 	13,200	 	 	 	150,000.00	 	 	 	100,000.00	 	 	 	250,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Sapphire Capital
Partners, L.P.

527 Madison Avenue

7th Floor

New York, NY 10013

Tel: 212.419.3948

Fax: 212.419.3952

Attn: Mr. Matthew Buton

	 	 	50,000	 	 	 	30,000	 	 	 	20,000	 	 	 	16,500	 	 	 	9,900	 	 	 	6,600	 	 	 	75,000.00	 	 	 	50,000.00	 	 	 	125,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Reuben Taub

607 West End Avenue

Apartment 4A

New York, NY 10024

Tel: 917.312.8099

Fax: 212.496.6307

	 	 	80,000	 	 	 	48,000	 	 	 	32,000	 	 	 	26,400	 	 	 	15,840	 	 	 	10,560	 	 	 	120,000.00	 	 	 	80,000.00	 	 	 	200,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	C.E. Unterberg,
Towbin Capital
Partners I, L.P.

c/o C.E. Unterberg,
Towbin

350 Madison Avenue

New York, NY 10017

Tel: 212.389.8055

Fax: 212.389.8455

Attn: Andrew Arno

	 	 	400,000	 	 	 	240,000	 	 	 	160,000	 	 	 	132,000	 	 	 	79,200	 	 	 	52,800	 	 	 	600,000.00	 	 	 	400,000.00	 	 	 	1,000,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	SRB Greenway
Capital, L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham

	 	 	23,920	 	 	 	14,352	 	 	 	9,568	 	 	 	7,894	 	 	 	4,736	 	 	 	3,158	 	 	 	35,880.00	 	 	 	23,920.00	 	 	 	59,800.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	SRB Greenway
Capital (QP), L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham

	 	 	162,680	 	 	 	97,608	 	 	 	65,072	 	 	 	53,684	 	 	 	32,211	 	 	 	21,473	 	 	 	244,020.00	 	 	 	162,680.00	 	 	 	406,700.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	SRB Greenway
Offshore Operating
Fund, L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham

	 	 	13,400	 	 	 	8,040	 	 	 	5,360	 	 	 	4,422	 	 	 	2,653	 	 	 	1,769	 	 	 	20,100.00	 	 	 	13,400.00	 	 	 	33,500.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Shea Ventures, LLC

655 Brea Canyon Road

Walnut, CA 91789

Tel: 909.594.9500

Fax: 909.869.0840

Attn: Mr. Edmund H.
Shea, Jr.

	 	 	200,000	 	 	 	120,000	 	 	 	80,000	 	 	 	66,000	 	 	 	39,600	 	 	 	26,400	 	 	 	300,000.00	 	 	 	200,000.00	 	 	 	500,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Amulet Limited

c/o Dundee Leeds
Management

Services (Cayman)
Ltd.

28N. Church Street,
Waterfront

Centre, George Town,
Grand Cayman,

Cayman Islands, British
West Indies

with copies to:

c/o Amaranth Advisors
L.L.C.

One American Lane

Greenwich, CT 06831

Tel: 203.422.3340

Fax: 203.422.3540

Attn: General Counsel

	 	 	2,250,000	 	 	 	1,350,000	 	 	 	900,000	 	 	 	742,500	 	 	 	445,500	 	 	 	297,000	 	 	 	3,375,000.00	 	 	 	2,250,000.00	 	 	 	5,625,000.00	 

 

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Total Number of	 	Number of	 	Number of	 	Total Number of	 	Number of	 	Number of	 	 	 	 	 	 
	Name and Address	 	Purchased Shares	 	Firm Shares	 	Excess Shares	 	Purchased Warrants	 	Firm Warrants	 	Excess Warrants	 	Firm Funds	 	Excess Funds	 	Total Purchase Price
	Omicron Master Trust

c/o Omicron Capital, L.P.

650 Fifth Avenue

24th Floor

New York, NY 10019

Tel: 212.258.2323

Fax: 212.258.2315

Attn: Brian Daly

	 	 	400,000	 	 	 	240,000	 	 	 	160,000	 	 	 	132,000	 	 	 	79,200	 	 	 	52,800	 	 	 	600,000.00	 	 	 	400,000.00	 	 	 	1,000,000.00	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Total:

	 	 	10,503,862	 	 	 	6,302,318	 	 	 	4,201,544	 	 	 	3,466,274	 	 	 	2,079,767	 	 	 	1,386,507	 	 	 	15,772,512.82	 	 	 	10,515,004.56	 	 	 	26,287,517.38	 

† Denotes Purchaser purchasing at Insider Per Unit Price

* Denotes portion of total (issued to Purchaser/ issued to Mr. Kayvan Karoon)

 

 

APPENDIX I

STOCK CERTIFICATE AND WARRANT QUESTIONNAIRE

     Pursuant to Section 4(l) of the Agreement, please provide us with the following
information:

     1. The exact name that the Purchaser’s Purchased Shares and Purchased Warrant are to be
registered in (this is the name that will appear on your stock certificate(s)). A nominee name may
be used if appropriate:

 

 

     2. The relationship between the Purchaser of the Purchased Shares and the Purchased Warrant
and the Registered Holder listed in response to Item 1 above:

 

 

     3. The mailing address of the Registered Holder listed in response to Item 1 above:

 

 

 

 

     4. The Social Security Number or Tax Identification Number of the Registered Holder listed in
response to Item 1 above:

 

 

 

 

APPENDIX II

REGISTRATION STATEMENT/SUITABILITY QUESTIONNAIRE

Pursuant to Section 4(l) of the Agreement, please provide the information below. All
capitalized terms not defined in this Appendix II shall have the meanings assigned to them in the
Agreement.

PART A

In connection with the preparation of the Registration Statement, please provide us with the
following information:

     Pursuant to the “Selling Stockholder” section of the Registration Statement, please state the
Purchaser’s name exactly as it should appear in the Registration Statement:

 

     Please provide the number of shares of Common Stock that the Purchaser will own immediately
after Closing, including those Shares purchased by the Purchaser pursuant to the Agreement and
those shares purchased by the Purchaser through other transactions:

 

     Please explain the nature of the beneficial ownership of the shares of Common Stock owned by
the Purchaser organization, including any shares of Common Stock not held of record by the
Purchaser:

 

 

 

 

 

 

     If the Purchaser is not a natural person, please identify each natural person who will
exercise sole or shared voting and/or dispositive power with respect to the shares of Common Stock
owned by the Purchaser immediately after the Closing. Please also specify in what capacity such
person(s) will exercise their voting and/or dispositive power with respect to such shares.

 

 

	 	 	 
	Natural Person(s)	 	Relationship to Purchaser
	 
	 	 
	 

	 	 
	 
	 	 
	 

	 	 
	 
	 	 

     Disclose the details of any rights to acquire shares of Common Stock that the Purchaser may
have:

 

 

 

 

 

 

     Has the Purchaser had any material relationship within the past three years with the Company
or its affiliates?

     Yes  ̈ No  ̈

     If yes, please indicate the nature of any such relationships below:

 

 

 

 

 

 

     Is the Purchaser a broker-dealer registered with the SEC?

Yes  ̈ No  ̈

     Is the Purchaser affiliated with any registered broker-dealer?

Yes  ̈ No  ̈

 

 

     If yes, please identify such broker-dealer and explain the relationship that such
registered broker-dealer has with the Purchaser (including details of any affiliation or
other relationship).

	 	 	 
	Registered Broker-Dealer	 	Relationship to Purchaser
	 
	 	 
	 

	 	 
	 
	 	 
	 

	 	 
	 
	 	 

PART B

Pursuant to Section 4 of the Agreement, please provide us with the following information,
and we will use the Purchaser’s responses to qualify the Purchaser for purposes of federal and
state securities laws:

 

IDENTIFICATION

			
	Name:	 	 

Address of principal place of business:

 

 

 

 

			
	State (or Country) of formation or incorporation:	 	 

			
	Contact Person:	 	 

			
	Telephone Number:	 	 

			
	Facsimile Number:	 	 

			
	Email Address:	 	 

			
	Type of Entity (corporation, partnership, trust, etc.):	 	 

			
	Social Security or Taxpayer or Employer Identification Number:	 	 

 

 

     STATUS AS AN ACCREDITED INVESTOR

Please confirm that the Purchaser is an “accredited investor” as defined under the Securities Act
of 1933, as amended (the “Act”), by checking all applicable boxes to indicate the exemption
qualifying you as an accredited investor, as provided in Rule 501(a) under the Securities Act of
1933, as amended.

 ̈ a corporation, organization described in Section 501(c)(3) of the Internal Revenue Code, a
Massachusetts or similar business trust or a partnership, in each case, not formed for the purpose
of this investment, with total assets in excess of $5,000,000;

 ̈ a private business development company as defined in Section 202(a)(22) of the Investment
Advisers Act of 1940;

 ̈ a Small Business Investment Company licensed by the U.S. Small Business Administration
under Section 301(c) or (d) of the Small Business Investment Act of 1958;

 ̈ an investment company registered under the Investment Company Act of 1940 or a business
development company as defined in Section 2(a)(48) of that Act;

 ̈ a bank as defined in Section 3(a)(2) or a savings and loan association or other institution
defined in Section 3(a)(5)(A) of the Act acting in either an individual or fiduciary capacity;

 ̈ an insurance company as defined in Section 2(13) of the Securities Act;

 ̈ an employee benefit plan within the meaning of Title I of the Employee Retirement Income
Security Act of 1974 whose investment decision is made by a fiduciary which is either a bank,
savings and loan association, insurance company, or registered investment advisor, or whose total
assets exceed $5,000,000, or, if a self-directed plan, a plan whose investment decisions are made
solely by persons who are accredited investors;

 ̈ a director, executive officer or general partner of the issuer of the securities being
offered or sold;

 ̈ a natural person whose individual net worth, or joint net worth with your spouse, at the
time of purchase exceeds $1,000,000;

 ̈ a natural person who had an individual income in excess of $200,000 in each of the two most
recent years or joint income with your spouse in excess of $300,000 in each of those years and has
a reasonable expectation of reaching the same income level in the current year;

 ̈ a trust with total assets in excess of $5,000,000, not formed for the specific purpose of
acquiring the securities offered, purchase is directed by a sophisticated person as described in
Rule 506(b)(2)(ii) of the Securities Act;

 ̈ an entity in which all the equity owners are accredited investors; or

 

 

	o	 	other – Please describe:

 

 

 

RESIDENCE INFORMATION

               Please indicate the jurisdiction in which the Purchaser resides, if the Purchaser is a natural
person, or in which the Purchaser is chartered and the jurisdiction in which it maintains its
principal offices:

 

INVESTMENT REPRESENTATION

Is the Purchaser purchasing the securities offered for its and for investment purposes only?

      Yes  ̈       No  ̈

If no, please state for whom is the Purchaser investing and/or the reason for investing.

 

 

 

SIGNATURE

The above information is true and correct in all material respects and the undersigned
recognizes that the Company and its counsel are relying on the truth and accuracy of such
information in reliance on the exemption under the Securities Act. The undersigned agrees to
notify the Company promptly of any changes in the foregoing information which may occur
prior to the investment.

	 	 	 
	Executed at                                                                  ,
                                                                  on                               , 2005.
	 

	 	 
	Name of Entity:
	 	 
	 

	 	 

	 	 	 	 	 
	By:

	 	 	 	 
	 

	 	 	 	 
	(Signature)	 	 
	 
	 	 	 	 
	 	 	 
	(Name and title of signatory)	 	 

IF THE INVESTMENT WILL BE MADE BY MORE THAN ONE ENTITY, WHETHER OR
NOT AFFILIATED, PLEASE COMPLETE A COPY OF THIS QUESTIONNAIRE FOR
EACH ENTITY.

 

 

EXHIBIT A

FORM OF WARRANT

Filed as Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed on August 9, 2005.

 

 

EXHIBIT B

DISCLOSURE LETTER

Introduction

     Reference is made to that certain Securities Purchase Agreement, dated as of August 9, 2005
(the “Agreement”), by and among Zix Corporation, a Texas corporation (the “Company”), and each of
the purchasers listed on Schedule A attached thereto (collectively, the “Purchasers”).
Capitalized terms used and not otherwise defined herein shall have the meanings given to such terms
in the Agreement.

     The schedules that constitute this Disclosure Letter are qualified in their entirety by
reference to the specific provisions of the Agreement. Inclusion of information herein shall not
constitute an admission or raise any inference that such information rises to a level of
materiality or is determinative of any standard of materiality.

     Matters reflected in this Disclosure Letter are not necessarily limited to matters required by
the Agreement to be reflected in this Disclosure Letter. Such additional matters are set forth for
informational purposes only and do not necessarily include other matters of a similar nature.
Unless otherwise stated, all statements made herein are made as of the date of the execution of the
Agreement.

     Matters disclosed in this Disclosure Schedule shall be deemed to be disclosed with respect to
all sections of the Agreement to which such disclosure is reasonably pertinent.

     Headings have been inserted on the schedules set forth in this Disclosure Letter for
convenience of reference only and shall to no extent have the effect of amending or changing the
express description of the sections as set forth in the Agreement.

 

 

Schedule 3(b)

Capitalization

     1. The Company (i) has issued convertible promissory notes, as amended and restated on July
22, 2005, to Omicron Master Trust and Amulet Limited in the aggregate principal amount of $20
million and (ii) has issued common stock purchase warrants covering an aggregate of 1,000,000
shares, as amended and restated on July 22, 2005, to Omicron Master Trust and Amulet Limited. The
convertible promissory notes are convertible into shares of Common Stock at a conversion price of
$6 and redeemable for shares of Common Stock at less than market value at the date of redemption.
In addition, the Company may also be obligated to issue additional warrants to purchase common
stock of the Company in connection with cash redemptions of the principal amounts under the
convertible promissory notes. In addition, the convertible promissory notes and the common stock
purchase warrants are subject to anti-dilution adjustments that will be triggered by the
transactions contemplated by the Agreement.

     2. In connection with the Agreement, the Company will be obligated to issue to C.E. Unterberg,
Towbin warrants representing 2% of the aggregate number of common shares issued to the investors,
pursuant to that certain Engagement Letter, dated as of July 2005, between the Company and C.E.
Unterberg, Towbin.

     3. The Company has issued warrants to HFTP Investment L.L.C., Gala Offshore Master Fund, Ltd.
and Caerus Fund Ltd. that contain certain anti-dilution adjustments that will be triggered by the
payment of interest in kind on the convertible promissory notes issued to Omicron Master Trust and
Amulet Limited and the transactions contemplated by the Agreement.

 

 

Schedule 3(g)

Governmental Consents

     1. Completion of review by the Nasdaq Stock Market, Inc. of the Notification Form: Listing of
Additional Shares regarding the securities to be issued under the Agreement, submitted by the
Company on July 14, 2005.

 

 

Schedule 3(h) 

Non-Contravention

     1. Each of Omicron Master Trust and Amulet Limited have certain participation rights to
purchase up to 30% of any capital raising transactions entered into by the Company under the
Purchase Agreements, dated November 1, 2004, as amended by Amendment No. 1 to the Purchase
Agreements dated April 13, 2005, that will be triggered by the transactions contemplated by the
Agreement. Such participation rights will have been exercised, or the time period for exercise of
such rights will have expired, prior to the execution of the Agreement.

 

 

Schedule 3(i) 

Litigation

     1. The Company has learned of the filing of several putative class action lawsuits in the U.S.
District Court for the Northern District of Texas against the Company and certain of its current
and former officers. The suits allege that defendants made materially false and misleading
statements and/or omissions in violation of Sections 10(b) and 20(a) of the Securities Exchange Act
of 1934. The suits seek unspecified damages on behalf of a purported class of purchasers of the
Company’s common stock during the period from October 30, 2003 to May 4, 2004. The case is
awaiting the appointment of the lead plaintiff.

     2. The Company has learned of the filing of a “shareholder derivative” lawsuit in the U.S.
District Court for the Northern District of Texas against the Company. This suit seeks to require
the Company, on behalf of its shareholders, to initiate legal action for unspecified damages
against the individual defendants named in the putative class action lawsuits, for alleged breaches
of fiduciary duty, abuse of control, insider selling and other alleged violations of law during the
aforementioned time period. The purported shareholder derivative lawsuit relates to the allegedly
materially false and misleading statements and/or omissions that are the subject of the purported
shareholder class action lawsuits.

     3. A former employee of the Company has asserted that the Company owes such employee
commission-related compensation in the aggregate amount of approximately $250,000. Arbitration
proceedings have commenced with respect to such claims.

 

 

Schedule 3(m) 

Transactions with Officers and Directors

     1. The Chairman of the Company’ s Board, John A. Ryan, and the Company have agreed that his
salary will be reduced to $10,000 per month pursuant to an agreement effective June 1, 2005.

     2. Certain directors and officers of the Company may participate in the transactions
contemplated by the Agreement.

 

 

Schedule 3(o)

Registration Rights Agreements

     1. Registration Rights Agreement, dated September 17, 2002, by and among the Company and HFTP
Investment L.L.C., Gala Offshore Master Fund, Ltd. and Caerus Fund Ltd. (requiring the filing of a
registration statement upon the triggering of certain anti-dilution adjustments to the warrants
issued to such investors, including the payment of interest in kind on the convertible promissory
notes issued to Omicron Master Trust and Amulet Limited and the transactions contemplated under the
Agreement).

     2. Engagement Letter, dated as of July 2005, between the Company and C.E. Unterberg, Towbin,
relating to the registration of shares of Common Stock issuable upon exercise of Warrants to be
issued in connection with Agreement.

     3. Amended and Restated Registration Rights Agreement, dated July 22, 2005, between the
Company and Omicron Master Trust.

     4. Amended and Restated Registration Rights Agreement, dated July 22, 2005, between the
Company and Amulet Limited.

 

 

Schedule 3(p)

Title to Property and Assets

     1. Liens covering the Company’s Accounts, Equipment and Fixtures and any proceeds relating to
the foregoing, pursuant to that certain Security Agreement, entered into as of January 30, 2004, by
and between the Company and Aventis Inc.

     The obligations secured by the Security Agreement are a promissory note dated as of January
30, 2004 in the original principal amount of $3,000,000 payable to Aventis Inc. and a Master
Services Agreement dated as of January 30, 2004, pursuant to which Aventis Inc. paid $4,000,000 to
Company in respect of services to be rendered by Company to Aventis Inc.

     2. Lien covering PocketScript, Inc. inventory, equipment, accounts, contract rights, chattel
paper, general intangibles, instruments, machinery and equipment, vehicles, insurance policies, and
proceeds pertaining to items supplied by T-Mobile USA, Inc., a supplier of some of the Blackberry
PDA’s used by PocketScript users.

     3. Capital Lease Agreement between the Company and Dell Inc. with respect to certain equipment
leased by the Company for the use of its customers.

 

 

EXHIBIT C

FORM OF OPINION

     1. The Company is a corporation validly existing and in good standing under the laws of the
State of Texas.

     2. The Company has the corporate power required (i) to own and operate its property and assets
and carry on its business as presently conducted as described in its Annual Report on Form 10-K, as
amended, for the year ended December 31, 2004 and (ii) to execute, deliver and perform its
obligations under each of the Transaction Documents.

     3. The Purchased Shares have been duly authorized and will be validly issued, fully paid and
non-assessable when such shares have been duly delivered against payment therefor as contemplated
by the Purchase Agreement and, to our knowledge, are not subject to any pre-emptive
rights or similar rights, except for pre-emptive rights which on the Closing Date are being
exercised or for which the time period for exercise has expired.

     4. The issuance of the Purchased Warrants has been duly authorized and, to our knowledge, is
not subject to any pre-emptive rights or similar rights, except for pre-emptive rights which on the
Closing Date are being exercised or for which the time period for exercise has expired, and the
Purchased Warrants will be validly issued when duly delivered against payment therefor as
contemplated by the Purchase Agreement. 

     5. The Warrant Shares have been duly authorized and reserved for issuance, and will be validly
issued, fully paid and non-assessable when such shares have been duly delivered upon exercise of
the Purchased Warrants against payment therefor in accordance with the terms of the Purchased
Warrants and, to our knowledge, are not subject to any pre-emptive rights or similar rights, except
for pre-emptive rights which on the Closing Date are being exercised or for which the time period
for exercise has expired.

     6. The Company has taken all corporate action necessary to authorize the execution, delivery
and performance of each of the Transaction Documents and has duly executed and delivered each of
the Transaction Documents.

     7. Each of the Transaction Documents constitutes a valid and binding obligation of the
Company, enforceable against the Company in accordance with the terms of each such Transaction
Document.

     8. The execution and delivery by the Company of the Transaction Documents and the consummation
of the transactions contemplated thereby by the Company, does not: (i) result in the violation of
the Articles of Incorporation or By-laws of the Company, as amended or (ii) result in the violation
of any Texas or federal law.

     9. The execution and delivery by the Company of the Transaction Documents and the consummation
by the Company of the transactions contemplated thereby, does not require

 

 

approval from or any filings with any governmental authority under Texas or federal law,
except for (i) approvals or filings contemplated by the Transaction Documents and (ii) approvals or
filings as have been filed, obtained or made.

     10. The authorized capital of the stock of the Company consists of 175,000,000 shares of
Common Stock and 10,000,000 shares of Preferred Stock.

     11. The Company is not an “investment company” within the meaning of the Investment Company
Act of 1940, as amended.

     12. Assuming the accuracy of the representations and warranties of each of the Purchasers in
Section 4 of the Purchase Agreement and assuming the compliance by each Purchaser with its
covenants set forth therein, the issuance and sale of the Purchased Securities under the
circumstances contemplated by the Transaction Documents does not require registration under the
Securities Act of 1933, as amended.

     The foregoing opinions are further subject to the following assumptions, limitations and
qualifications:

     A. With respect to the opinion expressed in Paragraph 1, we have relied solely on a
certificate of good standing, a copy of which has been furnished to you.

     B. The opinion expressed in Paragraph 7 is qualified (i) by the effects of applicable laws
relating to bankruptcy, insolvency, and other similar laws relating to or affecting the rights and
remedies of creditors generally, (ii) with respect to the remedies of specific performance and
injunctive and other forms of equitable relief, by the availability of equitable defenses and the
discretion of the court before which any enforcement thereof may be brought and (iii) by general
principles of equity, including, without limitation, concepts of materiality, reasonableness, good
faith and fair dealing (regardless of whether considered in a proceeding in equity or at law).

     C. We express no opinion as to the validity, binding effect or enforceability of (i)
provisions that purport to establish evidentiary standards, (ii) provisions relating to
severability, indemnity, contribution, set off, delay or omission of enforcement of rights or
remedies, (iii) provisions purporting to waive rights or defenses, (iv) provisions that purport to
restrict available remedies or establish remedies, (v) provisions relating to consent to
jurisdiction, choice of forum or choice of law, (vi) provisions under which any consent may be
unreasonably withheld or (vii) any provision if and to the extent that such provision (x) is a
liquidated damages provision, to the extent that such provision constitutes a penalty or forfeiture
or is otherwise contrary to public policy, or (y) provides a remedy for breach that may be deemed
to be disproportionate to actual damages or may be deemed to be a penalty.

     D. With respect to the opinion expressed in Paragraph 7, we have assumed that each party to
the Transaction Documents (other than the Company) (i) has the power and, in the case of natural
persons, the legal capacity to execute, deliver and perform its respective obligations under the
Transaction Documents to which it is a party and (ii) has duly authorized, executed and delivered
each of the Transaction Documents and that each of the Transaction Documents constitutes the valid
and binding obligation of such party, enforceable against such party in

 

 

accordance with its terms. We have also assumed for the purposes of our opinion in Paragraph
7, that the laws of the State of New York are the same as the laws of the State of Texas regarding
the enforceability of a document.

     E. We are not passing upon, and assume no responsibility for, the accuracy, completeness or
fairness of the representations, warranties or covenants of the Company contained in each of the
Transaction Documents.

     F. As used in this opinion letter, “our knowledge,” or similar phrases, shall mean the
current, actual knowledge, without independent investigation or verification, of those attorneys
who are currently members or associates of, or counsel to, our firm who have directly participated
in this engagement.

     G. With respect to matters relating to the Company’s compliance with Nasdaq regulations
relating to shareholder approval, we have relied solely on the letter of The Nasdaq Stock Market,
Inc. to the Company dated August 8, 2005 and on telephonic advice from The Nasdaq Stock Market,
Inc. to attorneys in our firm.

 

 

EXHIBIT D

FORM OF ESCROW AGREEMENT

Filed as Exhibit 10.1 to the
Registrant’s Current Report on Form 8-K/A dated
August 9, 2005,

filed on October 21, 2005.exv10w1

 

Exhibit 10.1

ESCROW AGREEMENT

     THIS ESCROW AGREEMENT (this “Agreement”), dated as of August 9, 2005 (the “Effective Time”),
is by and among Zix Corporation, a Texas corporation (the “Company”), and JPMorgan Chase Bank,
N.A., a national banking association, as escrow agent hereunder (the “Escrow Agent”).

Preamble

     The Company presently intends to raise capital in a private offering of its securities (the
“Offering”) pursuant to that certain Securities Purchase Agreement, dated of even date herewith
(the “Securities Purchase Agreement”), by and among the Company and each of the purchasers listed
on Schedule A thereto (collectively, the “Purchasers”). As required by the Securities
Purchase Agreement, the proceeds with respect to the Excess Units, as such term is defined in the
Securities Purchase Agreement, and identified on Schedule A to the Securities Purchase
Agreement and Schedule A hereto as the “Excess Funds” are to be placed in escrow hereunder
with the Escrow Agent (the “Escrow Funds”). The Escrow Agent is willing to hold and administer
such Escrow Funds and any income thereon and additions thereto, and to pay and distribute the
amounts held by it in accordance with the terms of this Agreement.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements contained herein, and
for other good and valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties agree as follows:

ARTICLE I

ESTABLISHMENT OF ESCROW

     Section 1.1 Escrow Funds. Contemporaneously with the Company’s receipt of the
proceeds of the Offering, the Company shall immediately deposit, or arrange for the immediate
deposit of, the Escrow Funds with the Escrow Agent. From and after receipt of the Escrow Funds by
the Escrow Agent, the Escrow Agent will hold and disburse the Escrow Funds (together with any cash
or other property received in respect thereof or earned thereon, which shall become a part of the
Escrow Funds) only in accordance with the provisions of this Agreement. Prior to the release and
distribution of the Escrow Funds, the Escrow Agent shall hold the Escrow Funds for the benefit of
the Company and the Purchasers pursuant to the terms of this Agreement.

     Section 1.2 Investments. The Escrow Agent shall invest and reinvest the Escrow Funds
and any other cash received by the Escrow Agent with respect thereto in such Eligible Investments
as the Company designates in writing to the Escrow Agent and shall not be responsible or liable for
any loss, tax or other charge accruing from any investment made in accordance herewith. The
“Eligible Investments” shall be those investments set forth in Schedule B attached hereto.
All earnings received from the investment of the Escrow Funds (the “Investment Earnings”) shall be
credited to, and shall become a part of, the Escrow Funds (and any losses on such investments shall be

1

 

debited from the Escrow Funds). Unless otherwise directed in writing, the Escrow Funds shall be
invested and reinvested in the JPMorgan Chase Cash Escrow. The Escrow Agent or any of its
affiliates may receive compensation with respect to any investment directed hereunder.

     Section 1.3 Additional Interest. In accordance with Section 1(b)(ii) of the
Securities Purchase Agreement, while held by the Escrow Agent, the Escrow Funds shall accrue
interest from and including the day following the Closing Date (as defined in the Securities
Purchase Agreement) to and excluding the date of release at a rate of 7.0% per annum (computed on
the basis of a 365-day year) (the “Interest Amount”). If the Escrow Funds are released to the
Company pursuant to Section 2.2(a), the Company shall promptly pay the Interest Amount to
the Purchasers. If the Escrow Funds are released to the Purchasers pursuant to Section
2.2(b), to the extent the Investment Earnings are less than the Interest Amount, the Company
shall promptly pay to the Purchasers the amount, if any, equal to such shortfall.

ARTICLE II

TERM; RELEASE OF ESCROW FUNDS

     Section 2.1 Term. The term of this Agreement shall commence at the Effective Time
and shall terminate at such time as all Escrow Funds have been distributed pursuant to the terms of
this Agreement.

     Section 2.2 Release of Escrow Funds. The Escrow Agent shall release and distribute
the Escrow Funds (including any Investment Earnings) as follows:

     (a) to the Company, upon the Escrow Agent’s receipt of a certificate substantially in
the form of Exhibit A, executed by a duly authorized officer of the Company and
certifying to the Escrow Agent that the Shareholder Approval contemplated by Section
5(d) of the Securities Purchase Agreement has been obtained on or before 5:00 P.M. CST,
Houston, Texas time, on November 22, 2005.

     (b) to the Purchasers, upon the Escrow Agent’s receipt from the Company of a
certificate substantially in the form of Exhibit A, executed by a duly authorized
officer of the Company and certifying to the Escrow Agent that the Shareholder Approval
contemplated by Section 5(d) of the Purchase Agreement was not obtained on or
before 5:00 P.M. CST, Houston, Texas time, on November 22, 2005, with each Purchaser to
receive a portion of the Escrow Funds equal to the sum of:

     (i) the amount of funds set forth next to its name on Schedule A
attached hereto under the column entitled “Excess Funds”; and

2

 

     (ii) such Purchaser’s pro rata share, based upon such Purchaser’s Excess Funds
vis-a-vis other Purchasers, of any Investment Earnings accrued on the Escrow Funds
while held by the Escrow Agent.

     If the Shareholder Approval contemplated by Section 5(d) of the Securities
Purchase Agreement is not obtained and the Company does not deliver a certificate to the
Escrow Agent pursuant to this Section 2.2(b) within 2 business days following
November 22, 2005, the Escrow Agent shall deliver the Escrow Funds, including any earnings
accrued on the Escrow Funds, to the Purchasers at the address or accounts, as applicable,
provided on Schedule A.

     The Escrow Agent shall promptly (and in any event within two business days from receipt of
notice) release and distribute the Escrow Funds (and any earnings accrued thereon), as described
above, in accordance with the payment instructions provided by an executed certificate
substantially in the form of Exhibit A provided to the Escrow Agent by the Company.

     Section 2.3 Effect of Final Delivery. This Agreement shall continue in full force
and effect until the Escrow Agent has delivered all of the Escrow Funds pursuant to the terms
hereof. Except as set forth in Section 4.12, after all of such funds have been so
delivered, all rights, duties and obligations of the respective parties hereunder shall terminate.

ARTICLE III

THE ESCROW AGENT

     Section 3.1 Appointment. The Company hereby designates and appoints the Escrow Agent
as “Escrow Agent” under this Agreement, and the Escrow Agent hereby accepts such designation and
appointment, subject to all of the provisions of this Agreement.

Section 3.2 Compensation; Expenses Reimbursement.

     (a) The Company agrees to pay the Escrow Agent’s compensation for its normal services
hereunder in accordance with the executed fee proposal, by and between the Escrow Agent and
the Company, which may be subject to change as mutually agreed upon from time to time
between the Company and the Escrow Agent.

     (b) The Company agrees to reimburse the Escrow Agent on demand for all costs and
expenses incurred in connection with the administration of this Agreement or the escrow
created hereby or the performance or observance of its duties hereunder which are in excess
of its compensation for normal services hereunder, including payment of any reasonable
legal fees and expenses incurred by the Escrow Agent in connection with resolution of any
claim by any party hereunder.

3

 

     Section 3.3 Escrow Agent Terms and Conditions.

     (a) The duties, responsibilities and obligations of the Escrow Agent shall be limited
to those expressly set forth herein, and no duties, responsibilities or obligations shall
be inferred or implied. The Escrow Agent, in its capacity as such, shall not be subject
to, nor required to comply with, any other agreement to which the Company is a party, even
though reference thereto may be made herein, or to comply with any direction or instruction
(other than those contained herein or delivered in accordance with this Agreement) from the
Company or any entity acting on its behalf. The Escrow Agent shall not be required to, and
shall not, expend or risk any of its own funds or otherwise incur any financial liability
in the performance of any of its duties hereunder.

     (b) If at any time the Escrow Agent is served with any judicial or administrative
order, judgment, decree, writ or other form of judicial or administrative process which in
any way affects the Escrow Funds (including but not limited to orders of attachment or
garnishment or other forms of levies or injunctions or stays relating to the transfer of
the Escrow Funds), the Escrow Agent is authorized to comply therewith in any manner as it
or legal counsel of its own choosing deems appropriate; and if the Escrow Agent complies
with any such judicial or administrative order, judgment, decree, writ or other form of
judicial or administrative process, the Escrow Agent shall not be liable to any of the
parties hereto or to any other person or entity even though such order, judgment, decree,
writ or process may be subsequently modified or vacated or otherwise determined to have
been without legal force or effect.

     (c) (i) The Escrow Agent shall not be liable for any action taken or omitted, or for
any loss or injury resulting from its actions or its performance or lack of performance of
its duties hereunder in the absence of gross negligence or willful misconduct on its part.
In no event shall the Escrow Agent be liable (A) for acting in accordance with or relying
upon any instruction, notice, demand, certificate or document from the Company or any
entity acting on behalf of the Company, to the extent such reliance is contemplated by this
Agreement, (B) in no event shall the Escrow Agent be liable for special, indirect or
consequential loss or damage of any kind whatsoever (including but not limited to lost
profits), even if the Escrow Agent has been advised of the likelihood of such loss or
damage and regardless of the form of action, (C) for the acts or omissions of its nominees,
correspondents, designees, subagents or subcustodians selected with reasonable care, or (D)
for an amount in excess of the value of the Escrow Funds.

          (ii) If any fees, expenses or costs incurred by, or any obligations owed to, the
Escrow Agent hereunder are not promptly paid when due, the Escrow Agent may reimburse
itself therefor from the Escrow Funds. In such event, the Escrow Agent shall notify the
Company of any such reimbursement from the Escrow Funds and shall furnish to the Company
copies
of all related invoices and other statements, and the Company shall promptly restore any
amount deducted from the Escrow Funds.

4

 

          (iii) The Escrow Agent may consult with legal counsel of its own selection at the
expense of the Company as to any matter relating to this Agreement, and the Escrow Agent
shall not incur any liability in acting in good faith in accordance with any advice from
such counsel.

          (iv) The Escrow Agent shall not incur any liability for not performing any act or
fulfilling any duty, obligation or responsibility hereunder by reason of any occurrence
beyond the control of the Escrow Agent (including, but not limited to, any act or provision
of any present or future law or regulation or governmental authority, any act of God or
war, or the unavailability of the Federal Reserve Bank wire or telex or other wire or
communication facility).

     (d) The Escrow Agent shall provide the Company with monthly statements identifying
transactions, transfers or holdings of the Escrow Funds, and each such statement shall be
deemed to be correct and final upon receipt thereof by such party unless the Escrow Agent
is notified in writing to the contrary within thirty (30) business days of the date of such
statement.

     (e) The Escrow Agent shall not be responsible in any respect for the form, execution,
validity, value or genuineness of documents or securities deposited hereunder, or for any
description therein, or for the identity, authority or rights of persons executing or
delivering or purporting to execute or deliver any such document, security or endorsement.

     (f) Notices, instructions or other communications shall be in writing and shall be
given to the address set forth in the “Notices” provision herein (or to such other address
as may be substituted therefor by written notification to the Escrow Agent or the Company).
Notices to the Escrow Agent shall be deemed to be given when actually received by the
Escrow Agent. The Escrow Agent is authorized to comply with and rely upon any notices,
instructions or other communications believed by it in good faith to have been sent or
given by the Company or by a person or persons authorized by the Company. Whenever under
the terms hereof the time for giving a notice or performing an act falls upon a Saturday,
Sunday, or New York Stock Exchange holiday, such time shall be extended to the next day on
which the Escrow Agent is open for business.

     (h) The Company shall be liable for and shall reimburse and indemnify the Escrow Agent
and hold the Escrow Agent harmless from and against any and all claims, losses,
liabilities, costs, damages or expenses (including reasonable attorneys’ fees and expenses)
(collectively, “Losses”) arising from or in connection with or related to this Agreement or
being the Escrow Agent hereunder (including, but not limited to, Losses incurred by the
Escrow Agent in connection with its successful defense, in whole or in part, of

5

 

any claim of gross negligence or willful misconduct on its part); provided, however, that
nothing contained herein shall require the Escrow Agent to be indemnified for Losses caused
by its own gross negligence or willful misconduct.

     (i) (i) The Company may remove the Escrow Agent at any time by giving to the Escrow
Agent thirty (30) calendar days’ prior notice in writing signed by the Company. The Escrow
Agent may resign at any time by giving the Company thirty (30) calendar days’ prior written
notice thereof.

          (ii) Within five (5) calendar days after giving the foregoing notice of removal to the
Escrow Agent or receiving the foregoing notice of resignation from the Escrow Agent, the
Company shall appoint a successor escrow agent. If a successor escrow agent has not
accepted such appointment within thirty (30) days after the giving of such notice, the
Escrow Agent may apply to a court of competent jurisdiction for the appointment of a
successor escrow agent or for other appropriate relief. The costs and expenses (including
reasonable attorneys’ fees and expenses) incurred by the Escrow Agent in connection with
such proceeding shall be paid by the Company.

          (iii) Upon receipt of the identity of the successor escrow agent, the Escrow Agent
shall either deliver the Escrow Funds then held hereunder to the successor escrow agent,
less the Escrow Agent’s earned but unpaid fees, costs and expenses or other obligations
owed to the Escrow Agent, or hold such Escrow Funds (or any portion thereof, without any
obligation to reinvest the same), pending distribution, until all such fees, costs and
expenses or other obligations are paid.

          (iv) Upon delivery of the Escrow Funds to the successor escrow agent, the Escrow Agent
shall have no further duties, responsibilities or obligations hereunder.

     (j) (i) In the event of any ambiguity or uncertainty hereunder or in any notice,
instruction or other communication received by the Escrow Agent hereunder, the Escrow Agent
may, in its sole discretion, refrain from taking any action other than retain possession of
the Escrow Funds, until the Escrow Agent receives written instructions, signed by the
Company and the Purchasers, which eliminate such ambiguity or uncertainty.

          (ii) IN THE EVENT OF ANY DISPUTE BETWEEN OR CONFLICTING CLAIMS BY OR AMONG THE COMPANY
AND/OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY ESCROW FUNDS, THE ESCROW AGENT SHALL
BE ENTITLED, IN ITS SOLE DISCRETION, TO REFUSE TO COMPLY WITH ANY AND ALL CLAIMS, DEMANDS
OR INSTRUCTIONS WITH RESPECT TO SUCH ESCROW FUNDS SO LONG AS SUCH DISPUTE OR CONFLICT SHALL
CONTINUE, AND THE ESCROW AGENT SHALL NOT BE OR BECOME LIABLE IN ANY WAY TO

6

 

THE COMPANY FOR FAILURE OR REFUSAL TO COMPLY WITH SUCH CONFLICTING CLAIMS, DEMANDS OR
INSTRUCTIONS. THE ESCROW AGENT SHALL BE ENTITLED TO REFUSE TO ACT UNTIL, IN ITS SOLE
DISCRETION, EITHER (I) SUCH CONFLICTING OR ADVERSE CLAIMS OR DEMANDS SHALL HAVE BEEN
DETERMINED BY A FINAL ORDER, JUDGMENT OR DECREE OF A COURT OF COMPETENT JURISDICTION, WHICH
ORDER, JUDGMENT OR DECREE IS NOT SUBJECT TO APPEAL, OR SETTLED BY AGREEMENT BETWEEN THE
CONFLICTING PARTIES AS EVIDENCED IN A WRITING SATISFACTORY TO THE ESCROW AGENT OR (II) THE
ESCROW AGENT SHALL HAVE RECEIVED SECURITY OR AN INDEMNITY SATISFACTORY TO IT SUFFICIENT TO
HOLD IT HARMLESS FROM AND AGAINST ANY AND ALL LOSSES WHICH IT MAY INCUR BY REASON OF SO
ACTING. THE ESCROW AGENT MAY, IN ADDITION, ELECT, IN ITS SOLE DISCRETION, TO COMMENCE AN
INTERPLEADER ACTION OR SEEK OTHER JUDICIAL RELIEF OR ORDERS AS IT MAY DEEM, IN ITS SOLE
DISCRETION, NECESSARY. THE COSTS AND EXPENSES (INCLUDING REASONABLE ATTORNEYS’ FEES AND
EXPENSES) INCURRED IN CONNECTION WITH SUCH PROCEEDING SHALL BE PAID BY, AND SHALL BE DEEMED
AN OBLIGATION OF THE COMPANY.

     (k) The Escrow Agent shall be under no duty to enforce payment of any subscription
which is to be paid to and held by it.

     (l) The Escrow Agent shall in no event have any liability in connection with its
investment, reinvestment or liquidation, in good faith and in accordance with the terms
hereof, of any Escrow Funds held by it hereunder, including, without limitation, any
liability for any delay not resulting from gross negligence or willful misconduct in such
investment, reinvestment or liquidation, or for any loss of income incident to any such
delay.

     (m) The Escrow Agent shall not be called upon to advise any party as to selling or
retaining, or taking or refraining from taking any action with respect to, any securities
or other property deposited hereunder.

     (n) It is understood that fees and usual charges agreed upon from the Escrow Agent’s
services shall be considered compensation for its services as contemplated by this
Agreement, and if the Escrow Agent renders any service not provided for in this Agreement,
or if there is any assignment of any interest in the subject matter of this Agreement by
the Company or any modification of this Agreement, or if any controversy arises under this
Agreement or the Escrow Agent is made a party to any litigation pertaining to this
Agreement, or the subject matter of this Agreement, the Escrow Agent shall be reasonably
compensated for those extraordinary services and reimbursed for all costs and expenses
occasioned by such services, controversy or litigation and the Company hereby promises to
pay such sums upon demand.

7

 

ARTICLE IV

MISCELLANEOUS

     Section 4.1 Governing Law. This Agreement shall be interpreted, construed, enforced
and administered in accordance with the internal substantive laws (and not the choice of law rules)
of the State of Texas.

     Section 4.2 Amendment. Except as otherwise permitted herein, this Agreement may be
modified only by a written amendment signed by all the parties hereto, and no waiver of any
provision hereof shall be effective unless expressed in a writing signed by the party to be
charged.

     Section 4.3 Waiver. The rights and remedies conferred upon the parties hereto shall
be cumulative, and the exercise or waiver of any such right or remedy shall not preclude or inhibit
the exercise of any additional rights or remedies. The waiver of any right or remedy hereunder
shall not preclude the subsequent exercise of such right or remedy.

     Section 4.4 Binding Obligation. The Company hereby represents and warrants (a) that
this Agreement has been duly authorized, executed and delivered on its behalf and constitutes its
legal, valid and binding obligation and (b) that the execution, delivery and performance of this
Agreement by the Company do not and will not violate any applicable law or regulation.

     Section 4.5 Severability. The invalidity, illegality or unenforceability of any
provision of this Agreement shall in no way affect the validity, legality or enforceability of any
other provision; and if any provision is held to be unenforceable as a matter of law, the other
provisions shall not be affected thereby and shall remain in full force and effect.

     Section 4.6 Entire Agreement. This Agreement shall constitute the entire agreement
of the parties with respect to the subject matter and supersedes all prior oral or written
agreements in regard thereto.

     Section 4.7 Headings. The headings contained in this Agreement are for convenience
of reference only and shall have no effect on the interpretation or operation hereof.

     Section 4.8 Counterparts. This Agreement may be executed, by facsimile or otherwise,
by each of the parties hereto in any number of counterparts, each of which counterpart, when so
executed and delivered, shall be deemed to be an original and all such counterparts shall together
constitute one and the same agreement.

8

 

     Section 4.9 Transferability; Third Party Beneficiaries. The parties to this
Agreement may not transfer any interest in the Escrow Funds or any other right under this Agreement
to any other party without the prior written consent of the other party to this Agreement. It is
expressly acknowledged and agreed by the parties that the Purchasers are intended to be and shall
be third party beneficiaries of this Agreement entitled to the benefits specified herein. Except
as set forth in this Section 4.9, this Agreement is for the exclusive benefit of the
parties hereto and their respective successors hereunder, and shall not be deemed to give, either
express or implied, any legal or equitable right, remedy, or claim to any other entity or person
whatsoever.

     Section 4.10 Binding Effect. This Agreement shall inure to the benefit of and be
binding upon the respective heirs, executors, administrators, successors and assigns of the parties
hereto.

     Section 4.11 Notices. All notices or other communications which are required or
permitted hereunder shall be in writing and sufficient if delivered by hand, by facsimile
transmission, by registered or certified mail, postage prepaid, or by courier or overnight carrier,
to the persons at the addresses set forth below (or at such other address as may be provided
hereunder), and shall be deemed to have been delivered as of the date so delivered:

     If to Company:

Zix Corporation

2711 N. Haskell Avenue, Suite 2200

Dallas, Texas 75204

Attn: Ronald A. Woessner, General Counsel

Facsimile: (214) 515-7385

     with a copy to:

Baker Botts L.L.P.

2001 Ross Avenue

Dallas, Texas 75201-2980

Attn: Sarah Rechter

Facsimile: (214) 661-4419

     If to the Escrow Agent:

JPMorgan Chase Bank, N.A.

600 Travis Street, 53rd Floor

Houston, Texas 77002

Attn: Luis Bustamante

Facsimile: (713) 216-6927

9

 

If to any Purchaser, at such Purchaser’s address or facsimile number set forth on Schedule
A to this Agreement;

or such other person or address as shall be furnished in writing by any of the parties and any such
notice or communication shall be deemed to have been given as of the date so mailed.

     Section 4.12 Survival. The following provisions shall survive any termination of
this Agreement or the resignation or removal of the Escrow Agent: Sections 3.2,
3.3(c), 3.3(h), 3.3(j)(ii), 4.9 and this Section 4.12.

     Section 4.13 Account Opening Information/TINs.

     (a) Account Opening Information. For accounts opened in the US, to help the
government fight the funding of terrorism and money laundering activities, Federal law
requires all financial institutions to obtain, verify, and record information that
identifies each person who opens an account. Accordingly, when an account is opened, the
Escrow Agent will ask for information that will allow it to identify relevant parties.

     (b) TINs. Tax Matters. The Company represents that its correct Taxpayer
Identification Number (“TIN”) assigned by the Internal Revenue Service (“IRS”) or any other
taxing authority is set forth on the signature page hereof. In addition, all interest or
other income earned under this Agreement shall be allocated and/or paid as directed by this
Agreement and reported by the recipient to the Internal Revenue Service or any other taxing
authority. Notwithstanding such written directions, the Escrow Agent shall report and, as
required, withhold any taxes as it determines may be required by any law or regulation in
effect at the time of the distribution. In the absence of timely direction, all Escrow
Funds shall be retained and reinvested from time to time by the Escrow Agent as provided in
Section 1.2. In the event that any earnings remain undistributed at the end of any
calendar year, the Escrow Agent shall report to the Internal Revenue Service or such other
authority such earnings as it deems appropriate or as required by any applicable law or
regulation or, to the extent consistent therewith, as directed in writing by the Company.
In the absence of such written directions, undistributed earnings will be attributed to and
reported on as belonging to the Company. In addition, the Escrow Agent shall withhold any
taxes it deems appropriate and shall remit such taxes to the appropriate authorities. Any
tax returns or reports required to be prepared and filed on behalf of or by the Company or
Purchasers, as applicable, will be prepared and filed by the Company or the Purchasers, as
applicable, and the Escrow Agent shall have no responsibility for the preparation and/or
filing or any tax return with respect to the Escrow Funds. In addition, any tax or other
payments required to be made pursuant to such tax return or filing will be paid by the
Company or Purchasers, as appropriate. The Escrow Agent shall have no
responsibility for such payment unless directed to do so by the appropriate authorized
party.

10

 

     Section 4.14 Security Procedures. In the event funds transfer instructions are
given, whether in writing, by telecopier or otherwise, the Escrow Agent is authorized to seek
confirmation of such instructions by telephone call-back to the person or persons designated on
Schedule C hereto, and the Escrow Agent may rely upon the confirmation of anyone purporting
to be the person or persons so designated. The persons and telephone numbers for call-backs may be
changed only in a writing actually received and acknowledged by the Escrow Agent. If the Escrow
Agent is unable to contact any of the authorized representatives identified in Schedule C,
the Escrow Agent is hereby authorized to seek confirmation of such instructions by telephone
call-back to any one or more of the Company’s executive officers (“Executive Officers”), which
shall include the titles of Chief Executive Officer, Chief Financial Officer, General Counsel and
Senior Vice President, as the Escrow Agent may select. Such Executive Officer shall deliver to the
Escrow Agent a fully executed incumbency certificate evidencing the authority of such Executive
Officer, and the Escrow Agent may rely upon the confirmation of anyone purporting to be any such
officer. The Escrow Agent and the Company’s or any Purchaser’s bank in any funds transfer may rely
solely upon any account numbers or similar identifying numbers provided by the Company to identify
(i) the Company or any Purchaser, (ii) the Company’s or any Purchaser’s bank, or (iii) an
intermediary bank. The Escrow Agent may apply any of the Escrow Funds for any payment order it
executes using any such identifying number, even when its use may result in a person other than the
Company or a Purchaser being paid, or the transfer of Escrow Funds to a bank other than the
Company’s or a Purchaser’ bank or an intermediary bank designated. The parties to this Agreement
acknowledge that these security procedures are commercially reasonable.

[Signatures on following page]

11

 

     IN WITNESS WHEREOF, the parties have executed this Escrow Agreement as of the day and year
first above written.

	 	 	 	 	 
	 	ESCROW AGENT

 	 
	 	By:  	/s/ May Ng 	 
	 	 	Name:  	May Ng 	 
	 	 	Title:  	Vice President, Trust Officer 	 
	 

Tax Certification: Taxpayer ID#: 75-2216818

Customer is a (check one):

	 	 	 	 	 	 	 
	  X  Corporation
	 	___Municipality	 	___Partnership	 	___Non-profit or Charitable Org
	___Individual

	 	___REMIC
	 	___Trust
	 	___Other ___

Under the penalties of perjury, the undersigned certifies that:

	(1)	 	the entity is organized under the laws of the United States
	 
	(2)	 	the number shown above is its correct Taxpayer Identification Number (or it is waiting for a
number to be issued to it); and
	 
	(3)	 	it is not subject to backup withholding because: (a) it is exempt from backup withholding or
(b) it has not been notified by the Internal Revenue Service (IRS) that it is subject to
backup withholding as a result of failure to report all interest or dividends, or (c) the IRS
has notified it that it is no longer subject to backup withholding.

(If the entity is subject to backup withholding, cross out the words after the (3) above.)

Investors who do not supply a tax identification number will be subject to backup withholding in

accordance with IRS regulations.

Note: The IRS does not require your consent to any provision of this document other than the
certifications required to avoid backup withholding .

	 	 	 	 	 
	 	COMPANY 

 	 
	 	By:  	/s/ Brad Almond 	 
	 	 	Name:  	Brad Almond 	 
	 	 	Title:  	Chief Financial Officer 	 
	 

Signature Page to Escrow Agreement

 

 

Exhibit A

Form of Certificate

for Release of Escrow Funds

          Reference is made to that certain Escrow Agreement (the “Escrow Agreement”), dated as of
___, 2005, between Zix Corporation, a Texas corporation (the “Company”), and ___,
a ___(the “Escrow Agent”). Capitalized terms used herein and not otherwise defined
shall have the respective meanings specified in the Escrow Agreement. The undersigned, duly
authorized officer of the Company, hereby certifies to the Escrow Agent as follows:

     (1) The conditions set forth in [Section 2.2(a)/Section 2.2(b)] for the release of the Escrow
Funds to the [Company/Purchasers] have been satisfied; and

     (2) The Escrow Agent is hereby directed to release the Escrow Funds (including the Investment
Earnings) to the [Company/Purchasers] pursuant to [Section 2.2(a)/Section 2.2(b)] of the Escrow
Agreement.

          Please disburse the Escrow Funds to the [Company/Purchasers] in accordance with [Section
2.2(a)/Section 2.2(b)] of the Escrow Agreement to [___] by wire transfer of
immediately available funds to [wire instructions to be inserted].

          In WITNESS WHEREOF, the undersigned has executed and delivered this certificate on the ___
day of ___, ___.

	 	 	 	 	 
	 	ZIX CORPORATION

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

 

 

SCHEDULE A

PURCHASERS

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Schottenfeld Qualified Associates, L.P. 

800 Third Avenue

10th Floor

New York, New York 10022

Tel: 212.300.2218

Fax: 212.838.5820

Attn: Richard Schottenfeld
	 	$	250,000.00	 
	 
	 	 	 	 
	Cranshire Capital, L.P.

666 Dundee Road, Suite 1901

Northbrook, IL 60062

Tel: 847.562.9030

Fax: 847.562.9031

Attn: Mitchell Kopin
	 	$	100,000.00	 
	 
	 	 	 	 
	Nite Capital LP

100 East Cook Avenue

Suite 201

Libertyville, IL 60048

Tel: 847.968.2655

Fax: 847.968.2648

Attn: Keith A. Goodman
	 	$	80,000.00	 
	 
	 	 	 	 
	Bluegrass Growth Fund, LP

122 E. 42nd Street

Suite 2606

New York, NY 10168

Tel: 212.682.2392

Fax: 212.202.9624

Attn: Brian Shatz
	 	$	100,000.00	 
	 
	 	 	 	 
	Alpha Capital AG

Pradefant 7

a490 Furstentus

Vaduz, Lichtenstein

Tel:

Fax:

Attn: Mr. Konrad Ackerman
	 	$	80,000.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Gryphon Master Fund, L.P.

100 Crescent Court

Suite 490

Dallas, Texas 75201

Tel: 214.871.6752

Fax: 214.871.6711

Attn: Mr. Tim Stobaugh
	 	$	260,000.00	 
	 
	 	 	 	 
	GSSF Master Fund, LP

100 Crescent Court

Suite 490

Dallas, Texas 75201

Tel: 214.871.6752

Fax: 214.871.6711

Attn: Mr. Tim Stobaugh
	 	$	140,000.00	 
	 
	 	 	 	 
	Precept Capital Master Fund, G.P.

100 Crescent Court

Suite 850

Dallas, Texas 75201

Tel: 214.880.7444

Fax: 214.880.0082

Attn: John Bateman
	 	$	115,000.00	 
	 
	 	 	 	 
	JMG Capital Partners, LP

11601 Wilshire Blvd.

Suite 2180

Los Angeles, CA 90025

Tel: 310.601.2825

Fax: 310.61.2890

Attn: Mr. Jonathan Glaser
	 	$	200,000.00	 
	 
	 	 	 	 
	JMG Triton Offshore Fund, Ltd.

11601 Wilshire Blvd.

Suite 2180

Los Angeles, CA 90025

Tel: 310.601.2825

Fax: 310.61.2890

Attn: Mr. Jonathan Glaser
	 	$	200,000.00	 
	 
	 	 	 	 
	Heartland Value Plus Fund c/o Brown
Brothers Harriman & Co.

c/o Heartland Group, Inc.

789 N. Water St., Suite 500

Milwaukee, WI 53202

Tel: 414.977.8748

Fax: 414.347.0364

Attn: Nicole J. Best
	 	$	600,000.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Diamond Opportunity Fund, LLC

500 Skokie Blvd.

Suite 310

Northbrook, IL 60062

Tel: 847.559.1002

Fax: 847.919.4410

Attn: Richard Marks
	 	$	100,000.00	 
	 
	 	 	 	 
	Andrew J. Hoff

731 N. Jackson Street

Suite 812

Milwaukee, WI 53202

Tel: 414.276.8576

Fax: 414.831.0122
	 	$	2,000,000.00	 
	 
	 	 	 	 
	George W. Haywood

3023 Q. Street, N.W.

Washington, D.C. 20007

Tel: 917.699.3522

Fax: 516.937.5050 (Attn: Gary Moomjian)
	 	$	800,000.00	 
	 
	 	 	 	 
	Superius Securities GP Profit
Sharing Plan

94 Grand Avenue

Englewood, NJ 07631

Tel: 201.568.8800

Fax: 201.568.9392

Attn: Mr. James Hudgins
	 	$	400,000.00	 
	 
	 	 	 	 
	Arthur R. Puglia

23499 Columbus Rd.

Columbus, NJ 08022

Tel: 609.298.1809

Fax: 609.291.0942
	 	$	22,000.00	 
	 
	 	 	 	 
	Manickam Ganesh

5 Eccleston Court

Montville, NJ 07045

Tel: 973.263.2345

Fax: 973.669.1687
	 	$	20,000.00	 
	 
	 	 	 	 
	William McCauley

492 Ackerson Avenue

Wyckoff, NJ 07481

Tel: 201.891.7798
	 	$	20,000.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Alapatt P. Thomas, MD

9 Manor Drive

Warren, NJ 07059

Tel: 973.374.4187

Fax: 973.374.3473
	 	$	40,000.00	 
	 
	 	 	 	 
	Hersey Norris

8553 Caratoke Hwy, US Hwy 158

Harbinger, NC 27941

Tel: 252.491.2673

Fax: 252.991.8302
	 	$	22,600.00	 
	 
	 	 	 	 
	Howard Raphaelson

10 Chauncey Place

Woodbury, NY 11797

Tel: 212.268.3222

Fax: 212.268.3313
	 	$	37,400.00	 
	 
	 	 	 	 
	Ronald S. Carvalho

107 Osborne Place

Cranford, NJ 07016

Tel: 908.208.3060

Fax: 908.709.1886
	 	$	20,000.00	 
	 
	 	 	 	 
	William R. Leggio

2 Charlton Street

Apt. 11K

New York, NY 10014

Tel: 212.966.4443

Fax: 212.431.9369
	 	$	30,000.00	 
	 
	 	 	 	 
	Capra Global Managed Assets, Ltd.

c/o Walkers SPV Limited

P.O. Box 908GT, Walker House

Mary Street, Georgetown

Grand Cayman, Cayman Islands

Tel: 914.925.7750

Fax: 914.925.8856

Attn: Mr. John Briggs
	 	$	139,600.00	 
	 
	 	 	 	 
	CGMA Special Accounts, LLC

c/o Walkers SPV Limited

P.O. Box 908GT, Walker House

Mary Street, Georgetown

Grand Cayman, Cayman Islands

Tel: 914.925.7750

Fax: 914.925.8856

Attn: Mr. John Briggs
	 	$	60,400.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Antonio R. Sanchez, Jr.

1920 Sandman Street

Laredo, Texas 78041

Tel: 956.722.8092

Fax: 956.722.1017
	 	$	200,000.00	 
	 
	 	 	 	 
	Con Egan

225 East 70th

Penthouse B

New York, NY 10021

Tel: 212.317.4815

Fax: 212.317.4819
	 	$	200,000.00	 
	 
	 	 	 	 
	Conor O’Driscoll

355 Locust Avenue

Rye, NY 10580

Tel: 916.967.8726

Fax: 212.317.4819
	 	$	150,000.00	 
	 
	 	 	 	 
	Fulvio Dobrich

c/o Galileo Asset Management

570 Lexington Avenue

24th Floor

New York, NY 10022

Tel: 212.812.7661

Fax: 212.812.7666
	 	$	120,000.00	 
	 
	 	 	 	 
	John M. Craig

46 Cheese Spring Road

Wilton, CT 06897

Tel: 203.761.9846

Fax: 203.761.9846

(phone prior to fax)
	 	$	100,000.00	 
	 
	 	 	 	 
	Anthony J. Pannella

Wilentz, Goldman & Spitzer PA

90 Woodbridge Center Drive

Woodbridge, NJ 07095

Tel: 732.855.6460

Fax: 732.726.6528
	 	$	60,000.00	 
	 
	 	 	 	 
	Stephen D. Baksa

2 Woods Lane

Chatham, NJ 07928

Tel: 973.635.4710
	 	$	60,000.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Antonio R. Sanchez, III

1111 Bagby

Suite 1600

Houston, Texas 77002

Tel: 713.783.8000

Fax: 713.783.0915
	 	$	40,000.22	 
	 
	 	 	 	 
	Robert P. Janke and Debbie Hansman

121 Highland Blvd.

Bozeman, MT 59715

Tel: 406.586.7537

Attn: Mr. Robert Janke
	 	$	40,000.00	 
	 
	 	 	 	 
	Richard D. Spurr

2711 North Haskell

Suite 2200, LB 36

Dallas, Texas 75204

Tel: 214.370.2031

Fax: 214.370.2295
	 	$	20,003.10	 
	 
	 	 	 	 
	Bradley Christian Almond

1541 El Campo

Dallas, Texas 75218

Tel: 214.370.2097
	 	$	4,000.62	 
	 
	 	 	 	 
	Charles N. Kahn, III

4545 Glebe Road

Arlington, VA 22207

Tel: 202.624.1534

Fax: 202.737.6832
	 	$	4,000.62	 
	 
	 	 	 	 
	Anthony V. Milone

1 Hillview Court

Armonk, NY 10504

or

c/o HAN

1305 Maroneck Avenue

White Plains, NY 10605

Tel: 914.328.3300 x19

Fax: 914.328.3380
	 	$	100,000.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Sapphire Capital Partners, L.P.

527 Madison Avenue

7th Floor

New York, NY 10013

Tel: 212.419.3948

Fax: 212.419.3952

Attn: Mr. Matthew Buton
	 	$	50,000.00	 
	 
	 	 	 	 
	Reuben Taub

607 West End Avenue

Apartment 4A

New York, NY 10024

Tel: 917.312.8099

Fax: 212.496.6307
	 	$	80,000.00	 
	 
	 	 	 	 
	C.E. Unterberg, Towbin Capital
Partners I, L.P.

c/o C.E. Unterberg, Towbin

350 Madison Avenue

New York, NY 10017

Tel: 212.389.8055

Fax: 212.389.8455

Attn: Andrew Arno
	 	$	400,000.00	 
	 
	 	 	 	 
	SRB Greenway Capital, L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham
	 	$	23,920.00	 
	 
	 	 	 	 
	SRB Greenway Capital (QP), L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham
	 	$	162,680.00	 
	 
	 	 	 	 
	SRB Greenway Offshore Operating Fund, L.P.

300 Crescent Court

Suite 1111

Dallas, Texas 75201

Tel: 214.756.6073

Fax: 214.756.6079

Attn: Joe Worsham
	 	$	13,400.00	 

 

 

	 	 	 	 	 
	Name and Address	 	Excess Funds	 
	Shea Ventures, LLC

655 Brea Canyon Road

Walnut, CA 91789

Tel: 909.594.9500

Fax: 909.869.0840

Attn: Mr. Edmund H. Shea, Jr.
	 	$	200,000.00	 
	 
	 	 	 	 
	Amulet Limited

c/o Dundee Leeds Management Services (Cayman) Ltd.

28N. Church Street, Waterfront Centre, George Town, 

Grand Cayman,

Cayman Islands, British West Indies

with copies to:

c/o Amaranth Advisors L.L.C.

One American Lane

Greenwich, CT 06831

Tel: 203.422.3340

Fax: 203.422.3540

Attn: General Counsel
	 	$	2,250,000.00	 
	 
	 	 	 	 
	Omicron Master Trust

c/o Omicron Capital, L.P.

650 Fifth Avenue

24th Floor

New York, NY 10019

Tel: 212.258.2323

Fax: 212.258.2315

Attn: Brian Daly
	 	$	400,000.00	 
	 
	 	 	 	 
	Total:
	 	$	10,515,004.56	 

 

 

Schedule B

Eligible Investments

	1.	 	Direct obligations of, or obligations the principal and interest on which is unconditionally
guaranteed by, the United States, maturing not more than 90 days after the acquisition
thereof.
	 
	2.	 	Trust funds, trust accounts, interest-bearing demand or time deposits (including certificates
of deposit) in a federally insured commercial bank incorporated under the laws of the United
States or any State thereof so long as the commercial paper or other short-term debt
obligations of such commercial bank have a short-term credit rating of at least A-1 by
Standard & Poor’s Corporation or P-1 by Moody’s Investors Services, Inc., maturing not more
than 90 days after the acquisition thereof.

 

 

Schedule C

Telephone Number(s) for Call-Backs and

Person(s) Designated to Confirm Funds Transfer Instructions

Company:

	 	 	 
	Name	 	Telephone Number
	1. Bradley C. Almond, Chief Financial Officer

	 	214-370-2000
	2. Ronald A. Woessner, General Counsel

	 	214-370-2000

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