Document:

<PAGE>

                                                                     Exhibit 4.4

                               AMENDMENT NO. 2 TO

                          REGISTRATION RIGHTS AGREEMENT

                                February 28, 2000

To each of the Purchasers named in
Schedule I to the Series C Convertible
Preferred Stock Purchase Agreement
dated February 28, 2000 (the "Purchasers")

Ladies and Gentlemen:

     On June 4, 1998, Cidera, Inc. (formerly SkyCache, Inc.), a Delaware
corporation (the "Company"), Douglas E. Humphrey, Lisa Losito, each of the
several purchasers listed on Schedule I to that certain Series A Convertible
Preferred Stock Purchase Agreement of even date therewith, Anchor Financial
Group LLC, and the holders of the Warrants to Purchase shares of the Common
Stock, $.01 par value, of the Company issued pursuant to that certain Bridge
Financing Agreement dated February 16, 1998, entered into a Registration Rights
Agreement (as amended, the "Agreement") of even date therewith. On June 9, 1999,
the parties to the Agreement entered into Amendment No. 1 to the Agreement along
with the several purchasers listed on Schedule I to that certain Series B
Convertible Preferred Stock Purchase Agreement of even date with such Amendment
No. 1.

     The parties to the Agreement now wish to further amend the Agreement to
extend the rights and benefits thereof to holders of Series C Convertible
Preferred Stock, $.01 par value, of the Company (the "Series C Preferred Stock")
issued pursuant to that certain Series C Convertible Preferred Stock Purchase
Agreement of even date herewith (the "Series C Stock Purchase Agreement") by and
among the Company and the Purchasers and to make certain other changes as
hereinafter set forth.

     Section 13(d) of the Agreement provides for such Agreement to be amended
both with the written consent of the Company and the holders of at least
two-thirds of the outstanding shares of Restricted Stock (as defined therein).

     In consideration of and pursuant to the foregoing, the Company covenants
and agrees with each of you that the Agreement is hereby amended as follows:

     1.   All of the shares of Series C Preferred Stock purchased pursuant to
          the Series C Stock Purchase Agreement shall be "Preferred Shares" for
          all purposes and to the same extent as if they were originally
          included as "Preferred Shares"
<PAGE>

          under the Agreement, all references in the Agreement to the "Preferred
          Stock" and the "Purchase Agreement" shall include all of the shares of
          such Series C Preferred Stock and the Series C Stock Purchase
          Agreement, respectively and all references in the Agreement to
          "Purchasers" shall include each Purchaser named in Schedule I to the
          Series C Stock Purchase Agreement.

     2.   Section 4(b) of the Agreement is hereby amended by adding the
          following sentence:

          "Notwithstanding anything to the contrary contained herein, in the
          event that the holders of 33% or more of the then outstanding shares
          of Series C Preferred Stock (or Conversion Shares relating thereto)
          elect not to include their shares of Restricted Stock in at least one
          registration pursuant to this Section 4, such holders will be entitled
          to require the Company to effect two additional registrations pursuant
          to this Section 4, which registrations may be requested by a holder or
          holders of at least 30% of the total shares of Series C Convertible
          Preferred Stock of the Company then outstanding."

     3.   Section 4 of the Agreement is hereby amended by replacing "50%" in the
          fourth line thereof with "30%."

     4.   With respect to registrations on Form S-3, Section 6 of the Agreement
          is hereby amended by replacing "50%" in the second line thereof and
          replacing it with "20%."

     5.   Section 9(d) of the Agreement is hereby amended by replacing:
          "provided, however, that, in any such case, (A) no such holder will be
           --------  -------
          required to contribute any amount in excess of the public offering
          price of all such Restricted Stock, Warrant Shares or Founders' Stock
          offered by it pursuant to such registration statement;" beginning in
          the sixteenth line, with: "provided, however, that, in any such case,
                                     --------  -------
          (A) no such holder will be required to contribute any amount in excess
          of the net proceeds received by such holder for all such Restricted
          Stock, Warrant Shares or Founders' Stock offered by it pursuant to
          such registration statement;".

     6.   Section 13(c) of the Agreement is hereby amended to replace the word
          "Maryland" with the word "Delaware." The following additional language
          is hereby added to such Section 13(c): "Each of the parties hereby
          submits to
<PAGE>

          personal jurisdiction and waives any objection as to venue in the
          State of Delaware. Service of process on the parties in any action
          arising out of or relating to this Agreement shall be effective if
          provided in accordance with Section 13(b). The parties hereby waive
          all right to trial by jury in any action or proceeding to enforce or
          defend any rights under this Agreement."

     7.   Section 13(d) of the Agreement is hereby amended by adding the
          following sentence:

          "Notwithstanding anything to the contrary in this Agreement, the
          provisions of Section 4(b) hereof shall not be amended without the
          consent of holders of at least two-thirds of the outstanding shares of
          the Series C Preferred Stock."

     This Amendment may be executed in two or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same instrument. This Amendment shall be effective upon execution by the
Company and the holders of at least two-thirds of the outstanding shares of
Restricted Stock (as defined in the Agreement).

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]
<PAGE>

     Please indicate your acceptance of the foregoing by signing and returning
the enclosed counterpart of this letter, whereupon this Agreement shall be a
binding agreement between the Company and you.

                                   Very truly yours,

                                   CIDERA, INC.

                                          By: /s/ Douglas E. Humphrey
                                              ---------------------------------
                                                  Douglas E. Humphrey
                                                  President and Chief Executive
                                                  Officer

AGREED TO AND ACCEPTED as of the
date first above written.

CARLYLE VENTURE PARTNERS, L.P.

By: Its General Partner, TCG Ventures, Ltd.

By: /s/ J. Mitchell Reese
   -----------------------------
        J. Mitchell Reese
        Attorney in Fact

C/S Venture INVESTORS, L.P.

By: Its General Partner, TCG Ventures, Ltd.

By: /s/ J. Mitchell Reese
   -----------------------------
        J. Mitchell Reese
        Attorney in Fact

Carlyle U.S. Venture Partners, L.P.

By: Its General Partner, TCG Ventures, L.L.C.

By: /s/ J. Mitchell Reese
   -----------------------------
        J. Mitchell Reese
        Managing Director

                      [SIGNATURE PAGE TO AMENDMENT NO. 2
                       TO REGISTRATION RIGHTS AGREEMENT]
<PAGE>

Carlyle Venture Coinvestment, L.L.C.

By: Its Manager, TCG Ventures, L.L.C.

By: /s/ J. Mitchell Reese
   -----------------------------
        J. Mitchell Reese
        Managing Director

/s/ Douglas E. Humphrey
-----------------------
Douglas E. Humphrey

/s/ Lisa Losito
---------------
Lisa Losito

NEW ENTERPRISE ASSOCIATES VIII,
LIMITED PARTNERSHIP

By:  NEA Partners VIII, Limited Partnership
     General Partner

      By: /s/ Peter Barris
         -----------------
         General Partner

NEA PRESIDENTS' FUND, L.P.

By:   NEA General Partners, L.P.
      General Partner

      By: /s/ Peter Barris
         -----------------
          General Partner

NEA VENTURES 1999, L.P.

      By: /s/ Peter Barris
         -----------------
          General Partner

                      [SIGNATURE PAGE TO AMENDMENT NO. 2
                       TO REGISTRATION RIGHTS AGREEMENT]
<PAGE>

INSTITUTIONAL VENTURE PARTNERS VIII, L.P.

By:  its General Partner, Institutional Venture Management VIII, LLC

      By: /s/ R. Thomas Dyal
         -----------------------------------
          R. Thomas Dyal, Managing Director

IVM INVESTMENT FUND VIII, LLC

By:  its Manager Institutional Venture Management VIII, LLC

      By: /s/ R. Thomas Dyal
         -----------------------------------
          R. Thomas Dyal, Managing Director

IVP BROADBAND FUND, L.P.

By:  its General Partner IVP Broadband Management, LLC
By:  its Managing Director, Institutional Venture Management VIII, LLC

      By: /s/ R. Thomas Dyal
         -----------------------------------
          R. Thomas Dyal, Managing Director

INTEL CORPORATION

By: Noel Lazo
    ---------
Its: Assistant Treasurer
     -------------------

PURCHASERS NOT PREVIOUSLY PARTY TO THE
AGREEMENT

GE CAPITAL EQUITY INVESTMENTS, INC.

By:/s/ Steven D. Smith
   -------------------
Name: Steven D. Smith
      ---------------
Title: Managing Director
       -----------------

                      [SIGNATURE PAGE TO AMENDMENT NO. 2
                       TO REGISTRATION RIGHTS AGREEMENT]
<PAGE>

INVESTOR (GUERNSEY) LTD.

By: /s/ David Jeffreys  Marc Hollander
    ----------------------------------
Name: David Jeffreys   Marc Hollander
      --------------------------------
Title:
      --------------------------------

DELL USA, L.P.
By: Dell Gen. P. Corp., its general partner

By: /s/ Alex C. Smith
    -----------------
Name: Alex C. Smith
      ---------------
Title: Vice President
       --------------

PSINET STRATEGIC INVESTMENTS, INC.

By: /s/ Harold S. Wills
    -------------------
Name: Harold S. Wills
      -----------------
Title: V.P. PSINet Strategic Investments, Inc.
       ---------------------------------------

/s/ Edward Postal
-----------------
Edward Postal

/s/ Thom F. Degnan   Diane H. Degnan
------------------------------------
Thom F. and Diane H. Degnan, JTWROS

/s/ Diane H. Degnan
-------------------
Diane H. Degnan,
         as custodian for Jamie Degnan

/s/ Diane H. Degnan
-------------------
Diane H. Degnan,
         as custodian for Todd Degnan

/s/ John Landry
-------------------------------------
John Landry

                      [SIGNATURE PAGE TO AMENDMENT NO. 2
                       TO REGISTRATION RIGHTS AGREEMENT]
<PAGE>

/s/ John Landry, as custodian for Jillian K. Landry
---------------------------------------------------
John Landry,
         as custodian for Jillian K. Landry

/s/ Adam Landry
---------------
Adam J. Landry

MCI WORLDCOM VENTURE FUND, INC.

By: /s/ Susan Mayer
   -----------------------
Name: Susan Mayer
     ---------------------
Title: President
      --------------------

 /s/ John Sidmore
--------------------------
John Sidgmore

/s/ Arno Penzias
--------------------------
Arno Penzias

/s/ Wayne Correia
--------------------------
Wayne Correia

                      [SIGNATURE PAGE TO AMENDMENT NO. 2
                       TO REGISTRATION RIGHTS AGREEMENT]<PAGE>

                                                                    Exhibit 10.1

                                 CIDERA,INC.

                      1998 FOUNDERS STOCK INCENTIVE PLAN

                           (AS AMENDED AND RESTATED)
<PAGE>

                               Table Of Contents
                                  (CONTENTS)

                                                                           Page
<TABLE>
<CAPTION>
<S>                                                                        <C>
ARTICLE 1   DEFINITIONS..................................................   1

ARTICLE 2   PURPOSES.....................................................   3

ARTICLE 3   ADMINISTRATION...............................................   3

ARTICLE 4   RIGHT OF FIRST REFUSAL.......................................   4

     4.1    Right of First Refusal.......................................   4

     4.2    Notice of Proposed Transfer..................................   4

     4.3    Exercise of Right of First Refusal...........................   4

     4.4    Purchase Price...............................................   4

     4.5    Payment......................................................   4

     4.6    Holder's Right to Transfer...................................   4

     4.7    Exempt Transfers.............................................   5

ARTICLE 5   STOCK SUBJECT TO PLAN........................................   5

     5.1    Shared Issues................................................   5

     5.2    Aggregate Limit..............................................   5

     5.3    Reallocation of Shares.......................................   6

ARTICLE 6   OPTIONS......................................................   6

     6.1    Award........................................................   6

     6.2    Option Price.................................................   6

     6.3    Maximum Option Period........................................   6

     6.4    Nontransferability...........................................   6

     6.5    Employee Status..............................................   6

     6.6    Exercise.....................................................   7

     6.7    Payment......................................................   7

     6.8    Installment Payment..........................................   7

     6.9    Stockholder Rights...........................................   8

     6.10   Disposition of Stock.........................................   8

ARTICLE 7   SARS.........................................................   8

     7.1    Award........................................................   8

     7.2    Maximum SAR Period...........................................   8

     7.3    Nontransferability...........................................   8
</TABLE>

<PAGE>

                               Table Of Contents
                                  (CONTINUED)

<TABLE>
<CAPTION>
                                                                                      Page
<S>                                                                                   <C>
     7.4     Exercise...............................................................   8

     7.5     Employee Status........................................................   9

     7.6     Settlement.............................................................   9

     7.7     Stockholder Rights.....................................................   9

ARTICLE 8    STOCK AWARDS...........................................................   9

     8.1     Award..................................................................   9

     8.2     Vesting................................................................   9

     8.3     Employee Status........................................................   9

     8.4     Stockholder Rights; Eligibility Limits, Termination for Cause..........  10

ARTICLE 9    ADJUSTMENT UPON CHANGE IN COMMON STOCK.................................  10

ARTICLE 10   COMPLIANCE WITH LAW AND APPROVAL OF REGULATORY BODIES..................  11

ARTICLE 11   GENERAL PROVISIONS.....................................................  11

    11.1     Effect on Employment and Service.......................................  11

    11.2     Unfunded Plan..........................................................  11

    11.3     Rules of Construction..................................................  12

ARTICLE 12   AMENDMENT..............................................................  12

ARTICLE 13   DURATION OF PLAN.......................................................  12

ARTICLE 14   EFFECTIVE DATE OF PLAN.................................................  12
</TABLE>

                                      ii.

<PAGE>

                                 CIDERA, INC.

                      1998 FOUNDERS STOCK INCENTIVE PLAN

                            (Amended and Restated)

                                 INTRODUCTION

     This Plan is an amendment and restatement of the Company's existing
"SkyCache, Inc. 1998 Founders Stock Incentive Plan," as permitted by Article 12
of the Plan, and shall become effective on the date of approval of the amended
and restated version of the Plan by the Company's board of directors.

                                   ARTICLE 1

                                  DEFINITIONS

     1.1  "Administrator" means the Board and any delegate of the Board that is
appointed in accordance with Article 3.

     1.2  "Affiliate" means any "subsidiary" or "parent" corporation (within the
meaning of Section 424 of the Code) of the Company.

     1.3  "Agreement" means a written agreement (including any amendment or
supplement thereto) between the Company and a Participant specifying the terms
and conditions of a Stock Award, an Option or SAR granted to such Participant.

     1.4  "Board" means the Board of Directors of the Company.

     1.5  "Code" means the Internal Revenue Code of 1986, and any amendments
thereto.

     1.6  "Common Stock" means the common stock of the Company.

     1.7  "Company" means Cidera, Inc., a Delaware corporation.  The Company was
formerly known as SkyCache, Inc. prior to a name change approved by the Board on
January 11, 2000.

     1.8  "Corresponding SAR" means an SAR that is granted in relation to a
particular Option and that can be exercised only upon the surrender to the
Company, unexercised, of that portion of the Option to which the SAR relates.

     1.9  "Fair Market Value" means, on any given date, the value of one share
of the Common Stock determined as follows:

<PAGE>

               (i)    if the Common Stock is listed on an established stock
exchange or traded on the Nasdaq National Market or the Nasdaq SmallCap Market,
the Fair Market Value of a share of Common Stock shall be the closing sales
price for such stock (or the closing bid, if no sales were reported) as quoted
on such exchange or market (or the exchange or market with the greatest volume
of trading in the Common Stock) on the last market trading day prior to the day
of determination, as reported in The Wall Street Journal or such other source as
the Administrator deems reliable.

               (ii)   in the absence of such markets for the Common Stock, the
Fair Market Value shall be determined in good faith by the Administrator using
any reasonable method.

     1.10 "Initial Value" means, with respect to an SAR, the Fair Market Value
on the date of grant.

     1.11 "Option" means a stock option that entitles the holder to purchase
from the Company a stated number of shares of Common Stock at the price set
forth in an Agreement.

     1.12 "Participant" means an employee, consultant or director of the Company
or an Affiliate, including an employee who is a member of the Board or an
individual who provides services to the Company or an Affiliate, who satisfies
the requirements of Company policy and applicable statutes/regulations, and is
selected by the Administrator to receive a Stock Award, an Option (ISO or Non-
Qualified), an SAR, or a combination thereof

     1.13 "Plan" means the Cidera, Inc. 1998 Founders Stock Incentive Plan.

     1.14 "SAR" means a stock appreciation right that in accordance with the
terms of an Agreement entitles the holder to receive, with respect to each share
of Common Stock encompassed by the exercise of such SAR, the amount determined
by the Administrator and specified in an Agreement. In the absence of such a
determination, the holder shall be entitled to receive, with respect to each
share of Common Stock encompassed by the exercise of such SAR, the excess of the
Fair Market Value on the date of exercise over the Initial Value. References to
"SARs" include both Corresponding SARs and SARs granted independently of
Options, unless the context requires otherwise.

     1.15 "Stock Award" means Common Stock awarded to a Participant under
Article 8.

     1.16 "Ten Percent Stockholder" means any individual owning more than ten
percent (10%) of the total combined voting power of all classes of stock of the
Company or of an Affiliate. An individual shall be considered to own any voting
stock owned (directly or indirectly) by or for his brothers, sisters, spouse,
ancestors or lineal descendants and shall be considered to own proportionately
any voting stock owned (directly or indirectly) by or for a corporation,
partnership, estate or trust of which such individual is a stockholder, partner
or beneficiary.

                                      2.
<PAGE>

                                   ARTICLE 2

                                   PURPOSES

     The Plan is intended to assist the Company and its Affiliates in recruiting
and retaining individuals with ability and initiative by enabling such persons
to participate in the future success of the Company and its Affiliates and to
associate their interests with those of the Company and its stockholders. The
Plan is intended to permit the grant of both Options qualifying under Section
422 of the Code ("incentive stock options") and Options not so qualifying, and
the grant of SARs and Stock Awards. No Option that is intended to be an
incentive stock option shall be invalid for failure to qualify as an incentive
stock option. The proceeds received by the Company from the sale of Common Stock
pursuant to this Plan shall be used for general corporate purposes.

                                   ARTICLE 3

                                 ADMINISTRATION

     The Plan shall be administered by the Administrator. The Administrator
shall have authority to grant Stock Awards, Options and SARs upon such terms
(not inconsistent with the provisions of this Plan) as the Administrator may
consider appropriate. Such terms may include conditions (in addition to those
contained in this Plan) on the exercisability of all or any part of an Option or
SAR or on the transferability or forfeitability of a Stock Award.
Notwithstanding any such conditions, the Administrator may, in its discretion,
accelerate the time at which any Option or SAR may be exercised, or the time at
which a Stock Award may become transferable or nonforfeitable. In addition, the
Administrator shall have complete authority to interpret all provisions of this
Plan; to prescribe the form of Agreements; to adopt, amend, and rescind rules
and regulations pertaining to the administration of the Plan; and to make all
other determinations necessary or advisable for the administration of this Plan,
except as limited in Article 12 herein. The express grant in the Plan of any
specific power to the Administrator shall not be construed as limiting any power
or authority of the Administrator. Any decision made, or action taken, by the
Administrator in connection with the administration of this Plan shall be final
and conclusive. Neither the Administrator nor any member of the Board shall be
liable for any act done in good faith with respect to this Plan or any
Agreement, Option, SAR or Stock Award. All expenses of administering this Plan
shall be borne by the Company.

     The Board, in its discretion, may delegate to one or more officers of the
Company all or part of the Board's authority and duties with respect to grants
and awards, in which case references to the Administrator in this Article 3
shall include the Board's delegate or delegates. The Board may revoke or amend
the terms of a delegation at any time but such action shall not invalidate any
prior actions of the Board's delegate or delegates that were consistent with the
terms of the Plan and the prior delegation.

                                      3.

<PAGE>

                                   ARTICLE 4

                             RIGHT OF FIRST REFUSAL

     4.1  Right of First Refusal. Before any Common Stock held by any
Participant ("Purchase Shares") upon exercise of an Option or any transferee of
such shares (either being sometimes referred to herein as the "Holder") may be
sold or otherwise transferred (including without limitation a transfer by gift
or operation of law), the Company and/or its assignee(s) shall have an
assignable right of first refusal to purchase the Purchase Shares to be sold or
transferred (the "Offered Shares") on the terms and conditions set forth in this
Article 4 (the "Right of First Refusal").

     4.2  Notice of Proposed Transfer. The Holder of the Purchase Shares shall
deliver to the Company a written notice (the "Notice") stating: (i) the Holder's
bona fide intention to sell or otherwise transfer the Offered Shares; (ii) the
name of each proposed bona fide purchaser or other transferee ("Proposed
Transferee"); (iii) the number of Offered Shares to be transferred to each
Proposed Transferee; (iv) the bona fide cash price or other consideration for
which the Holder proposes to transfer the Offered Shares (the "Offered Price");
and (v) that the Holder will offer to sell the Offered Shares to the Company
and/or its assignee(s) at the Offered Price as provided in this Article 4.

     4.3  Exercise of Right of First Refusal. At any time within thirty (30)
days after the date of the Notice, the Company and/or its assignee(s) may, by
giving written notice to the Holder, elect to purchase all of the Offered Shares
proposed to be transferred to any one or more of the Proposed Transferees named
in the Notice, at the purchase price determined as specified below.

     4.4  Purchase Price. The purchase price for the Offered Shares purchased
under this Article 4 will be the Offered Price. If the Offered Price includes
consideration other than cash, then the cash equivalent value of the non-cash
consideration shall conclusively be deemed to be the value of such non-cash
consideration as determined in good faith by the Administrator.

     4.5  Payment.  Payment of the purchase price for Offered Shares will be
payable, at the option of the Company and/or its assignee(s) (as applicable), by
check or by cancellation of all or a portion of any outstanding indebtedness of
the Holder to the Company (or to such assignee, in the case of a purchase of
Offered Shares by such assignee) or by any combination thereof. The purchase
price will be paid without interest within sixty (60) days after the Company's
receipt of the Notice, or, at the option of the Company and/or its assignee(s),
in the manner and at the time(s) set forth in the Notice.

     4.6  Holder's Right to Transfer. If all of the Offered Shares proposed in
the Notice to be transferred to a given Proposed Transferee are not purchased by
the Company and/or its assignee(s) as provided in this Article 4, then the
Holder may sell or otherwise transfer such Offered Shares to that Proposed
Transferee at the Offered Price or at a higher price, provided that such sale or
other transfer is consummated within 120 days after the date of the Notice, and
provided further, that (i) any such sale or other transfer is effected in
compliance with all applicable securities laws and (ii) the Proposed Transferee
agrees in writing that the provisions

                                      4.

<PAGE>

of this Article 4 will continue to apply to the Offered Shares in the hands of
such Proposed Transferee. If the Offered Shares described in the Notice are not
transferred to the Proposed Transferee within such 120 day period, then a new
Notice must be given to the Company, and the Company will again be offered the
Right of First Refusal before any Purchase Shares held by the Holder may be sold
or otherwise transferred.

     4.7  Exempt Transfers.  Notwithstanding anything to the contrary in this
Article 4, the following transfers of Purchase Shares will be exempt from the
Right of First Refusal: (1) the transfer of any or all of the Purchase Shares
during Participant's lifetime by gift or on Participant's death by will or
intestacy to Participant's "immediate family" (as defined below) or to a trust
for the benefit of Participant or Participant's immediate family, provided that
each transferee or other recipient agrees in a writing satisfactory to the
Company that the provisions of this Section will continue to apply to the
transferred Purchase Shares in the hands of such transferee or other recipient;
(ii) any transfer of Purchase Shares made pursuant to a statutory merger or
statutory consolidation of the Company with or into another corporation or
corporations (except that the Right of First Refusal will continue to apply
thereafter to such Purchase Shares, in which case the surviving corporation of
such merger or consolidation shall succeed to the rights or the Company under
this Section unless the agreement of merger or consolidation expressly otherwise
provides); or (iii) any transfer of Purchase Shares pursuant to the winding up
and dissolution of the Company.  As used herein, the term "immediate family"
will mean Participant's spouse, the lineal descendant or antecedent, father,
mother, brother or sister, adopted child or grandchild of Participant or
Participant's spouse, or the spouse of any child, adopted child, grandchild or
adopted grandchild of Participant or Participant's spouse, and a person
domiciled with the Participant and whom by affidavit is the domestic partner of
the Participant in a committed relationship with one another.

                                   ARTICLE 5

                             STOCK SUBJECT TO PLAN

     5.1  Shared Issues. Upon the award of shares of Common Stock pursuant to a
Stock Award the Company may issue shares of Common Stock from its authorized but
unissued Common Stock. Upon the exercise of any Option or SAR the Company may
deliver to the Participant (or the Participant's broker if the Participant so
directs), shares of Common Stock from its authorized but unissued Common Stock.

     5.2  Aggregate Limit. The maximum aggregate number of shares of Common
Stock that may be issued under this Plan pursuant to the exercise of SARs and
Options and the grant of Stock Awards is 1,370,054 shares. The maximum aggregate
number of shares that may be issued under this Plan shall be subject to
adjustment as provided in Article 9. The exercise of an SAR will reduce the
maximum aggregate number of shares of Common Stock that may be issued under this
Plan only to the extent that the SAR is settled by the issuance of shares of
Common Stock.

     5.3  Reallocation of Shares.  If an Option is terminated, in whole or in
part, for any reason other than its exercise or the exercise of a Corresponding
SAR that is settled with Common Stock, the number of shares of Common Stock
allocated to the Option or portion

                                      5.

<PAGE>

thereof may be reallocated to other Options, SARs and Stock Awards to be granted
under this Plan. If an SAR is terminated, in whole or in part, for any reason
other than its exercise and settlement with Common Stock or the exercise of a
related Option, the number of shares of Common Stock allocated to the SAR or
portion thereof may be reallocated to other Options, SARs and Stock Awards to be
granted under this Plan. If a Stock Award is forfeited, in whole or in part, the
number of shares forfeited may be reallocated to other Options, SARs and Stock
Awards to be granted under this Plan.

                                   ARTICLE 6

                                    OPTIONS

     6.1  Award. In accordance with the provisions of Article 4, the
Administrator will designate each individual to whom an Option is to be granted
and will specify the number of shares of Common Stock covered by such awards.

     6.2  Option Price. The price per share or the formula for determining the
price per share for Common Stock purchased on the exercise of an Option shall be
determined by the Administrator on the date of grant. Notwithstanding the
preceding sentence, the price per share for Common Stock purchased on the
exercise of any Option that is an incentive stock option shall not be less than
the Fair Market Value on the date the Option is granted or, in the case of an
incentive stock option granted to an individual who is a Ten Percent Stockholder
on the date such option is granted, shall not be less than one hundred ten
percent (110%) of the Fair Market Value on the date the Option is granted.

     6.3  Maximum Option Period. The maximum period in which an Option may be
exercised shall be determined by the Administrator on the date of grant, except
that no Option that is an incentive stock option shall be exercisable after the
expiration of ten years from the date such Option was granted. In the case of an
incentive stock option that is granted to a Participant who is a Ten Percent
Stockholder on the date of grant, such Option shall not be exercisable after the
expiration of five years from the date of grant. The terms of any Option that is
an incentive stock option may provide that it is exercisable for a period less
than such maximum period.

     6.4  Nontransferability. Each Option granted under this Plan shall be
nontransferable except by will or by the laws of descent and distribution. In
the event of any such transfer, the Option and any Corresponding SAR that
relates to such Option must be transferred to the same person or persons or
entity or entities. During the lifetime of the Participant to whom the Option is
granted, the Option may be exercised only by the Participant. No right or
interest of a Participant in any Option or Stock obtained under this Plan shall
be liable for, or subject to, any lien, obligation, assignment, or liability of
such Participant.

     6.5  Employee Status. For purposes of determining the applicability of
Section 422 of the Code (relating to incentive stock options), or in the event
that the terms of any Option provide that it may be exercised only during
employment or within a specified period of time after termination of employment,
the Administrator may decide to what extent leaves of absence for governmental
or military service shall not be deemed interruptions of continuous

                                      6.

<PAGE>

employment. Employment shall not be considered interrupted for plan
participation or continuous vesting, for leaves of absence or any other extended
absence outside the current control of the employee.

     6.6  Exercise.  Subject to the provisions of this Plan and the applicable
Agreement, an Option may be exercised in whole at any time or in part from time
to time at such times and in compliance with such requirements as the
Administrator shall determine; provided, however, that incentive stock options
(granted under the Plan and all plans of the Company and its Affiliates) may not
be first exercisable in a calendar year for stock having a Fair Market Value
(determined as of the date an Option is granted) exceeding $100,000. An Option
granted under this Plan may be exercised with respect to any number of whole
shares, less than the full number for which the Option could be exercised. A
partial exercise of an Option shall not affect the right to exercise the Option
from time to time in accordance with this Plan and the applicable Agreement with
respect to the remaining shares subject to the Option. The exercise of an Option
shall result in the termination of any Corresponding SAR to the extent of the
number of shares with respect to which the Option is exercised.

     6.7  Payment. Unless otherwise provided by the Agreement, payment of the
Option price shall be made in cash or a cash equivalent acceptable to the
Administrator. If the Agreement provides, payment of all or part of the Option
price may be made on a cashless basis by surrendering shares of Common Stock to
the Company. If Common Stock is used to pay all or part of the Option price, the
sum of the cash and cash equivalent and the Fair Market Value (determined as of
the day preceding the date of exercise) of the shares surrendered must not be
less than the Option price of the shares for which the Option is being
exercised.

     6.8  Installment Payment. If the Participant is employed by the Company or
an Affiliate on the date the Option is exercised, payment of all or part of the
Option price may be made in installments. In that event the Company shall lend
the Participant an amount equal to not more than ninety percent (90%) of the
Option price of the shares acquired by the exercise of the Option. This amount
shall be evidenced by the Participant's promissory note and shall be payable in
not more than sixty equal monthly installments, unless the amount of the loan
exceeds the maximum loan value for the shares purchased, which value shall be
established from time to time by regulations of the Board of Governors of the
Federal Reserve System. In that event, the note shall be payable in equal
quarterly installments over a period of time not to exceed five years. The
Administrator, however, may vary such terms and make such other provisions
concerning the unpaid balance of such purchase price in the case of hardship,
subsequent termination of employment, leave of absence or other absence beyond
the current control of the employee, absence on military or government service,
or subsequent death of the Participant as in its discretion are necessary or
advisable in order to protect the Company, promote the purposes of the Plan and
comply with regulations of the Board of Governors of the Federal Reserve System
relating to securities credit transactions.

     The Participant shall pay interest on the unpaid balance at the minimum
rate necessary to avoid imputed interest or original issue discount under the
Code. All shares acquired with cash borrowed from the Company shall be pledged
to the Company as security for the repayment thereof. In the discretion of the
Administrator, shares of stock may be released from such pledge proportionately
as payments on the note (together with interest) are made, provided the release
of

                                      7.

<PAGE>

such shares complies with the regulations of the Federal Reserve System relating
to securities credit transactions then applicable. While shares are so pledged,
and so long as there has been no default in the installment payments, such
shares shall remain registered in the name of the Participant, and he shall have
the right to vote such shares and to receive all dividends thereon.

     6.9  Stockholder Rights. No Participant shall have any rights as a
stockholder with respect to shares subject to his Option until the date of
exercise of such Option.

     6.10 Disposition of Stock.  A Participant shall notify the Company of any
sale or other disposition of Common Stock acquired pursuant to an option that
was an incentive stock option if such sale or disposition occurs (i) within two
years of the grant of an Option or (ii) within one year of the issuance of the
Common Stock to the Participant. Such notice shall be in writing and directed to
the Secretary of the Company.

                                   ARTICLE 7

                                     SARS

     7.1  Award.  The Administrator will designate each individual to whom SARs
are to be granted and will specify the number of shares covered by such awards.
No Participant may be granted Corresponding SARs (under all incentive stock
option plans of the Company and its Affiliates) that are related to incentive
stock options which are first exercisable in any calendar year for stock having
an aggregate Fair Market Value (determined as of the date the related Option is
granted) that exceeds $100,000.

     7.2  Maximum SAR Period. The maximum period in which an SAR may be
exercised shall be determined by the Administrator on the date of grant, except
that no Corresponding SAR that is related to an incentive stock option shall be
exercisable after the expiration of ten years from the date such related Option
was granted. In the case of a Corresponding SAR that is related to an incentive
stock option granted to a Participant who is a Ten Percent Stockholder, such
Corresponding SAR shall not be exercisable after the expiration of five years
from the date such related Option was granted. The terms of any Corresponding
SAR that is related to an incentive stock option may provide that it is
exercisable for a period less than such maximum period.

     7.3  Nontransferability.  Each SAR granted under this Plan shall be
nontransferable except by will or by the laws of descent and distribution. In
the event of any such transfer, a Corresponding SAR and the related Option must
be transferred to the same person or persons or entity or entities. During the
lifetime of the Participant to whom the SAR is granted, the SAR may be exercised
only by the Participant. No right or interest of a Participant in any SAR shall
be liable for, or subject to, any lien, obligation, or, liability of such
Participant.

     7.4  Exercise.  Subject to the provisions of this Plan and the applicable
Agreement, an SAR may be exercised in whole at any time or in part from time to
time at such times and in compliance with such requirements as the Administrator
shall determine; provided, however, that a Corresponding SAR that is related to
an incentive stock option may be exercised only to the extent that the related
Option is exercisable and only when the Fair Market Value exceeds the

                                      8.

<PAGE>

option price of the related Option. An SAR granted under this Plan may be
exercised with respect to any number of whole shares less than the full number
for which the SAR could be exercised. A partial exercise of an SAR shall not
affect the right to exercise the SAR from time to time in accordance with this
Plan and the applicable Agreement with respect to the remaining shares subject
to the SAR. The exercise of a Corresponding SAR shall result in the termination
of the related Option to the extent of the number of shares with respect to
which the SAR is exercised.

     7.5  Employee Status. If the terms of any SAR provide that it may be
exercised only during employment or within a specified period of time after
termination of employment, the Administrator may decide to what extent leaves of
absence for governmental or military service shall not be deemed interruptions
of continuous employment. Employment shall not be considered interrupted for
plan participation or continuous vesting, for leaves of absence or any other
extended absence outside the current control of the employee.

     7.6  Settlement. At the Administrator's discretion, the amount payable as a
result of the exercise of an SAR may be settled in cash, Common Stock, or a
combination of cash and Common Stock. No fractional share will be deliverable
upon the exercise of an SAR but a cash payment will be made in lieu thereof.

     7.7  Stockholder Rights. No Participant shall, as a result of receiving an
SAR award, have any rights as a stockholder of the Company or any Affiliate
until the date that the SAR is exercised and then only to the extent that the
SAR is settled by the issuance of Common Stock.

                                   ARTICLE 8

                                 STOCK AWARDS

     8.1  Award.  The Administrator will designate each individual to whom a
Stock Award is to be made and will specify the number of shares of Common Stock
covered by such awards.

     8.2  Vesting.  The Administrator, on the date of the award, may prescribe
that a Participant's rights in the Stock Award shall be forfeitable or otherwise
restricted for a period of time or subject to such conditions as may be set
forth in the Agreement and or an incorporated Confidentiality and Engagement
Agreement or similar instrument as set out in 8.4.

     8.3  Employee Status.  In the event that the terms of any Stock Award
provide that shares may become transferable and nonforfeitable thereunder only
after completion of a specified period of employment, the Administrator may
decide in each case to what extent leaves of absence for governmental or
military service shall not be deemed interruptions of continuous employment.
Employment shall not be considered interrupted for plan participation or
continuous vesting, for leaves of absence or any other extended absence outside
the current control of the employee.

     8.4  Stockholder Rights; Eligibility Limits, Termination for Cause.  Prior
any forfeiture (in accordance with the applicable Agreement and/or
Confidentiality and Engagement Agreement, and while the shares of Common Stock
granted pursuant to the Stock Award may be

                                      9.

<PAGE>

forfeited or are nontransferable), a Participant will have all rights of a
stockholder with respect to a Stock Award, including the right to receive
dividends and vote the shares; provided, however, that during such period (i) a
Participant may not sell, transfer, pledge, exchange, hypothecate, or otherwise
dispose of shares of Common Stock granted pursuant to a Stock Award, nor are
such shares subject to any form of levy; (ii) the Company shall retain custody
of the certificates evidencing shares of Common Stock granted pursuant to a
Stock Award, and (iii) the Participant will deliver to the Company a stock
power, endorsed in blank, with respect to each Stock Award. The limitations set
forth in the preceding sentence shall not apply after the shares of Common Stock
granted under the Stock Award are transferable and are no longer forfeitable.

     Notwithstanding any other provision herein, at the Company's request, each
Participant shall execute with the Agreement hereunder, any contract which is
referenced in the Agreement where that contract is intended to protect Company
trade secrets, the dissemination of Company information, and/or limitations on
competition by a Participant. Any grant made in contravention of this provision
shall be void or voidable and be entirely without effect. Furthermore, the
Agreement and/or any contract as described above may delineate penalties for
breach thereof, including but not limited to forfeiture of all rights of
participation in this Plan, with full forfeiture of all benefits received or
anticipated to be received under this Plan.

     Termination for cause shall, at the sole discretion of the Administrator,
cause total forfeiture under this Plan, both of benefits already received and
those which are anticipated. Termination for cause is defined as any act of
dishonesty where the Company is the victim; or where there is any breach of any
Agreement; or where a Participant deliberately has materially and in some
measurable way endangered the operations of the Company or any client or any
affiliate of the Company; or where there has been gross dereliction or
abdication of duty or refusal to perform assigned duties consistent with
required responsibilities; or where the Participant has violated in connection
with Company work any employment law barring discrimination or implicating
issues of safety of other persons, firms or property.

                                   ARTICLE 9

                    ADJUSTMENT UPON CHANGE IN COMMON STOCK

     The maximum number of shares as to which Options, SARs and Stock Awards may
be granted under this Plan and the terms of outstanding Stock Awards, Options,
and SARs shall be adjusted as the Board shall determine to be equitably required
in the event that (a) the Company (i) effects one or more stock dividends, stock
split-ups, subdivisions or consolidations of shares or (ii) engages in a
transaction to which Section 424 of the Code applies or (b) there occurs any
other event which, in the judgment of the Board necessitates such action. Any
determination made under this Article 9 by the Board shall be final and
conclusive.

     The issuance by the Company of shares of stock of any class, or securities
convertible into shares of stock of any class, for cash or property, or for
labor or services, either upon direct sale or upon the exercise of rights or
warrants to subscribe therefor, or upon conversion of shares or obligations of
the Company convertible into such shares or other securities, shall not affect,
and no adjustment by reason thereof shall be made with respect to, the maximum
number of

                                      10.

<PAGE>

shares as to which Options, SARs and Stock Awards may be granted or the terms of
outstanding Stock Awards, Options or SARs.

     The Administrator may make Stock Awards and may grant Options and SARs in
substitution for performance shares, phantom shares, stock awards, stock
options, stock appreciation rights, or similar awards held by an individual who
becomes an employee of the Company or an Affiliate in connection with a
transaction described in the first paragraph of this Article 9. Notwithstanding
any provision of the Plan (other than the limitation of Section 5.2), the terms
of such substituted Stock Awards or Option or SAR grants shall be as the
Administrator, in its discretion, determines is appropriate.

                                   ARTICLE 10

             COMPLIANCE WITH LAW AND APPROVAL OF REGULATORY BODIES

     No Option or SAR shall be exercisable, no Common Stock shall be issued, no
certificates for shares of Common Stock shall be delivered, and no payment shall
be made under this Plan except in compliance with all applicable federal and
state laws and regulations (including, without limitation, withholding tax
requirements), any listing agreement to which the Company is a party, and the
rules of all domestic stock exchanges on which the Company's shares may be
listed. The Company shall have the right to rely on an opinion of its counsel as
to such compliance. Any share certificate issued to evidence Common Stock when a
Stock Award is granted or for which an Option or SAR is exercised may bear such
legends and statements as the Administrator may deem advisable to assure
compliance with federal and state laws and regulations. No Option or SAR shall
be exercisable, no Stock Award shall be granted, no Common Stock shall be
issued, no certificate for shares shall be delivered, and no payment shall be
made under this Plan until the Company has obtained such consent or approval as
the Administrator may deem advisable from regulatory bodies having jurisdiction
over such matters.

                                   ARTICLE 11

                               GENERAL PROVISIONS

     11.1 Effect on Employment and Service.  Neither the adoption of this Plan,
its operation, nor any documents describing or referring to this Plan (or any
part thereof) shall confer upon any individual any right to continue in the
employ or service of the Company or an Affiliate or in any way affect any right
and power of the Company or an Affiliate to terminate the employment or service
of any individual at any time with or without assigning a reason therefor.

     11.2 Unfunded Plan. The Plan, insofar as it provides for grants, shall be
unfunded, and the Company shall not be required to segregate any assets that may
at any time be represented by grants under this Plan. Any liability of the
Company to any person with respect to any grant under this Plan shall be based
solely upon any contractual obligations that may be created pursuant to this
Plan. No such obligation of the Company shall be deemed to be secured by any
pledge of, or other encumbrance on, any property of the Company.

                                      11.

<PAGE>

     11.3 Rules of Construction. Headings are given to the articles and sections
of this Plan solely as a convenience to facilitate reference. The reference to
any statute, regulation, or other provision of law shall be construed to refer
to any amendment to or successor of such provision of law.

                                  ARTICLE 12

                                   AMENDMENT

     The Board may amend or terminate this Plan from time to time; provided,
however, that no amendment may become effective until stockholder approval is
obtained if (i) the amendment increases the aggregate number of shares of Common
Stock that may be issued under the Plan or (ii) the amendment changes the class
of individuals eligible to become Participants. No amendment shall, without a
Participant's consent, adversely affect any rights of such Participant under any
outstanding Stock Award, Option or SAR outstanding at the time such amendment is
made. No amendment (other than (i) and (ii) above) may be undertaken to this
Plan or Agreements hereunder without the express written permission of the
Participant; no Participant refusal to agree to such an amendment may be taken
into account in any aspect of employment with the Company or participation in
this or any subsequent Plan.

                                  ARTICLE 13

                               DURATION OF PLAN

     No Stock Award, Option or SAR may be granted under this Plan more than ten
years after the earlier of the date this Plan is adopted by the Board or the
date this Plan is approved by stockholders in accordance with Article 14. Stock
Awards, Options and SARs granted before that date shall remain valid in
accordance with their terms.

                                   ARTICLE 14

                             EFFECTIVE DATE OF PLAN

     Options and SARs may be granted under this Plan upon its adoption by the
Board, provided that no Option or SAR shall be effective or exercisable unless
this Plan is approved by a majority of the votes entitled to be cast by the
Company's stockholders, voting either in person or by proxy, at a duly held
stockholders' meeting within twelve months of such adoption. Stock Awards may be
granted under this Plan upon the later of its adoption by the Board or its
approval by stockholders in accordance with the preceding sentence.

                                     12.

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