Document:

2004 MANAGEMENT INCENTIVE COMPENSATION PLAN

 Exhibit 10.1 
  
 HOUGHTON MIFFLIN COMPANY 
 2004 MANAGEMENT INCENTIVE COMPENSATION PLAN 
  
 Purpose 
  
 The purpose of the 2004 Management
Incentive Plan is to motivate and reward performance that contributes to the achievement of divisional and corporate strategy as defined by specified financial and individual objectives. This year’s plan focuses on two primary financial
measures: Cash Flow and EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization). 
  
 Minimum Performance Requirements 
  
 Financial Objectives 
  
 Payment of incentive compensation for achievement of financial objectives may occur if: 
  

	 	•	Company Cash Flow is         % or more of target (Corporate measures) 

  

	 	•	Division Cash Flow is         % or more of target (Division measures) 

  
 Personal Quantitative Objectives 
  
 Payment of incentive compensation for achievement of individual objectives
may occur if Division Cash Flow is         % or more of target. 
  
 Payout Formulas 
  
 Financial Objectives 
  
 2004 Financial
objectives are Company Cash Flow, Company EBITDA, Division Cash Flow and Division EBITDA. 
  
 Bonus payments will be calculated based on achievement of financial objectives against threshold, target and above target performance. Target bonus is earned as target performance is achieved. Minimum performance
levels (threshold) will result in minimum bonus opportunity for each financial objective. Incremental performance for each objective will result in additional bonus opportunity. Please refer to your management plan letter for more details.

  
 Individual Objectives 
  
 Payment of incentive compensation for achievement of personal quantitative
objectives is based on the Division/Department Officer’s assessment of each participant’s degree of success in achieving the written objectives as established at the start of the year. Maximum payout for achievement of Individual
Objectives occurs when all Individual Objectives are achieved. 
  
 Eligibility

  
 Participants in this plan include executives, directors,
managers, and professional staff as designated by Senior Executives of Houghton Mifflin. 
  
 Dates of Employment 
  
 Individuals who become participants prior to the 15th of the month from January through September may be eligible to participate on a prorated basis. Determination of current year participation will be made by the hiring manager in
conjunction with the Human Resources Manager and Compensation Business Partner. Individuals who become participants in the fourth quarter (October–December) will be eligible for participation in the management incentive plan in the following
year. 

 Voluntary and Involuntary Terminations 
  
 A participant whose employment terminates, voluntarily or involuntarily,
prior to year-end is not eligible for an incentive award, unless required by law, except for the following reasons: 
  
 (1) Retirement after age 55 with at least five years of service, 
  

(2) Death, or permanent disability, 
  
 In the event of retirement, death, or permanent disability, a pro rata share of the award (based on the number of months of eligible employment during
that year) will be paid to the participant, or his or her heirs, based upon the extent of partial achievement of applicable objectives. In the event of a leave of absence during the year, a pro rata share of the award may be paid. 
  
 (3) Organizational Restructuring, Facility Closings and Reduction in Force

  
 In the event of organizational restructuring, facility
closings and reduction in force that occur during the fourth quarter of the year (October–December), employees may be eligible for a pro-rated bonus payment to be calculated through the employee’s separation date. The pro-rated payment
will be determined by using a full year of company/business financial results, and individual performance for the partial year through the employee’s separation date. 
  
 Transfers 
  
 If the participant during the year transfers to another position and continues to participate in the Plan, the employee’s performance will be
measured against the objectives in each position and then prorated on the number of months each position was held. 
  
 Performance Standards 
  
 To be eligible for payment, a participating employee must be in good standing and considered a satisfactory employee as determined by management (not on
written warning or any disciplinary/performance plan) during the plan year. Payment of bonus does not imply or construe that performance may not be addressed at a future date. 
  
 Amendments and Modifications 
  
 Nothing contained in the Plan shall be construed to limit in any way the right of the Company to terminate a participant’s employment, adjust an
employee’s position or salary at any time, or adjust bonus target, or be evidence of any agreement or understanding, expressed or implied, that any person will be employed in a particular position or at a particular rate of compensation. Unless
otherwise stated in a written employment agreement between an individual and the Company, all employees of the Company are employed on an at-will basis. 
  
 In the event of a Change of Control, this plan shall remain in full effect until such time as it may be ratified, modified or abolished by the acquiring
entity. Any modifications to or dissolution of this Plan by the acquiring entity may only occur prospectively and will not affect entitlements or eligibility before the date of the Change of Control, or such date as it may be modified or abolished
by the acquiring entity. 
  
 Houghton Mifflin reserves the right
to amend the terms of this Plan whenever, in their best judgment, it is in the best interest of the Company to do so. 
  
 The Board of Houghton Mifflin approves any payments based on the recommendation of the CEO of Houghton Mifflin pursuant to the Plan. Any interpretations
of the Plan, including adjustments to the financial objectives under the Plan, shall be theirs to make. Their determinations shall be final and binding on all participants.1999 Employee Stock Purchase Plan, as amended to date

 EXHIBIT 10.1 
  

	
	
	 MARIMBA, INC.
  
 1999 EMPLOYEE STOCK PURCHASE
PLAN
  
  
 (AS AMENDED AND RESTATED APRIL 30, 2004)

 TABLE OF CONTENTS 
  

			
	 	  	Page

	 SECTION 1. PURPOSE OF THE PLAN
	  	1
		
	 SECTION 2. ADMINISTRATION OF THE PLAN
	  	1
	 (a) Committee Composition
	  	1
	 (b) Committee Responsibilities
	  	1
		
	 SECTION 3. ENROLLMENT AND PARTICIPATION
	  	1
	 (a) Offering Periods
	  	1
	 (b) Contribution Periods
	  	1
	 (c) Enrollment
	  	1
	 (d) Duration of Participation
	  	1
	 (e) Applicable Offering Period
	  	2
		
	 SECTION 4. EMPLOYEE CONTRIBUTIONS
	  	2
	 (a) Frequency of Payroll Deductions
	  	2
	 (b) Amount of Payroll Deductions
	  	2
	 (c) Changing Withholding Rate
	  	3
	 (d) Discontinuing Payroll Deductions
	  	3
	 (e) Limit on Number of Elections
	  	3
		
	 SECTION 5. WITHDRAWAL FROM THE PLAN
	  	3
	 (a) Withdrawal
	  	3
	 (b) Re-Enrollment After Withdrawal
	  	3
		
	 SECTION 6. CHANGE IN EMPLOYMENT STATUS
	  	3
	 (a) Termination of Employment
	  	3
	 (b) Leave of Absence
	  	3
	 (c) Death
	  	4
		
	 SECTION 7. PLAN ACCOUNTS AND PURCHASE OF SHARES
	  	4
	 (a) Plan Accounts
	  	4
	 (b) Purchase Price
	  	4
	 (c) Number of Shares Purchased
	  	4
	 (d) Available Shares Insufficient
	  	4
	 (e) Issuance of Stock
	  	4
	 (f) Unused Cash Balances
	  	5
	 (g) Stockholder Approval
	  	5
		
	 SECTION 8. LIMITATIONS ON STOCK OWNERSHIP
	  	5
	 (a) Five Percent Limit
	  	5
	 (b) Dollar Limit
	  	5

  

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	 SECTION 9. RIGHTS NOT TRANSFERABLE
	  	6
		
	 SECTION 10. NO RIGHTS AS AN EMPLOYEE
	  	6
		
	 SECTION 11. NO RIGHTS AS A STOCKHOLDER
	  	6
		
	 SECTION 12. SECURITIES LAW REQUIREMENTS.
	  	7
		
	 SECTION 13. STOCK OFFERED UNDER THE PLAN
	  	7
	 (a) Authorized Shares
	  	7
	 (b) Anti-Dilution Adjustments
	  	7
	 (c) Reorganizations
	  	7
		
	 SECTION 14. AMENDMENT OR DISCONTINUANCE
	  	7
		
	 SECTION 15. DEFINITIONS
	  	8
	 (a) Board
	  	8
	 (b) Code
	  	8
	 (c) Committee
	  	8
	 (d) Company
	  	8
	 (e) Compensation
	  	8
	 (f) Contribution Period
	  	8
	 (g) Corporate Reorganization
	  	8
	 (h) Eligible Employee
	  	8
	 (i) Exchange Act
	  	8
	 (j) Fair Market Value
	  	8
	 (k) IPO
	  	9
	 (l) Offering Period
	  	9
	 (m) Participant
	  	9
	 (n) Participating Company
	  	9
	 (o) Plan
	  	9
	 (p) Plan Account
	  	9
	 (q) Purchase Price
	  	9
	 (r) Stock
	  	9
	 (s) Subsidiary
	  	9

  

 ii 

 MARIMBA, INC. 
 1999 EMPLOYEE STOCK PURCHASE PLAN 
  
 SECTION 1. PURPOSE OF THE PLAN. 
  
 The Plan was adopted by the Board on February 2, 1999, effective as of the date of the IPO. The purpose of the Plan is to provide Eligible Employees with
an opportunity to increase their proprietary interest in the success of the Company by purchasing Stock from the Company on favorable terms and to pay for such purchases through payroll deductions. The Plan is intended to qualify under section 423
of the Code. 
  
 SECTION 2. ADMINISTRATION OF THE PLAN. 
  
 (a) Committee Composition. The Plan shall be administered by the
Committee. The Committee shall consist exclusively of one or more directors of the Company, who shall be appointed by the Board. 
  
 (b) Committee Responsibilities. The Committee shall interpret the Plan and make all other policy decisions relating to the operation of the Plan.
The Committee may adopt such rules, guidelines and forms as it deems appropriate to implement the Plan. The Committee’s determinations under the Plan shall be final and binding on all persons. 
  
 SECTION 3. ENROLLMENT AND PARTICIPATION. 
  
 (a) Offering Periods. While the Plan is in effect, two overlapping
Offering Periods shall commence in each calendar year. The Offering Periods shall consist of the 24-month periods commencing on each May 1 and November 1, except that the first Offering Period shall commence on the date of the IPO and end on April
30, 2001. 
  
 (b) Contribution Periods. While the Plan is
in effect, two Contribution Periods shall commence in each calendar year. The Contribution Periods shall consist of the six-month periods commencing on each May 1 and November 1, except that the first Contribution Period shall commence on the date
of the IPO and end on October 31, 1999. 
  
 (c) Enrollment.
Any individual who, on the day preceding the first day of an Offering Period, qualifies as an Eligible Employee may elect to become a Participant in the Plan for such Offering Period by executing the enrollment form prescribed for this purpose by
the Committee. The enrollment form shall be filed with the Company at the prescribed location not later than 10 business days prior to the commencement of such Offering Period, unless otherwise provided by the Company. 
  
 (d) Duration of Participation. Once enrolled in the Plan, a
Participant shall continue to participate in the Plan until he or she ceases to be an Eligible Employee, withdraws from the Plan under Section 5(a) or reaches the end of the Contribution Period in which his or 

 her employee contributions were discontinued under Section 4(d) or 8(b). A Participant who discontinued employee
contributions under Section 4(d) or withdrew from the Plan under Section 5(a) may again become a Participant, if he or she then is an Eligible Employee, by following the procedure described in Subsection (c) above. A Participant whose employee
contributions were discontinued automatically under Section 8(b) shall automatically resume participation at the beginning of the earliest Contribution Period ending in the next calendar year, if he or she then is an Eligible Employee. 

 
 (e) Applicable Offering Period. For purposes of calculating the
Purchase Price under Section 7(b), the applicable Offering Period shall be determined as follows: 
  
 (i) Once a Participant is enrolled in the Plan for an Offering Period, such Offering Period shall continue to apply to him or her until
the earliest of (A) the end of such Offering Period, (B) the end of his or her participation under Subsection (d) above or (C) re-enrollment for a subsequent Offering Period under Paragraph (ii) or (iii) below. 
  
 (ii) In the event that the Fair Market Value of Stock on the
last trading day before the commencement of the Offering Period for which the Participant is enrolled is higher than on the last trading day before the commencement of any subsequent Offering Period, the Participant shall automatically be
re-enrolled for such subsequent Offering Period. 
  
 (iii) Any other provision of the Plan notwithstanding, the Company (at its sole discretion) may determine prior to the commencement of any new Offering Period that all Participants shall be re-enrolled for such new Offering Period.

  
 (iv) When a Participant reaches the end of an
Offering Period but his or her participation is to continue, then such Participant shall automatically be re-enrolled for the Offering Period that commences immediately after the end of the prior Offering Period. 
  
 SECTION 4. EMPLOYEE CONTRIBUTIONS. 
  
 (a) Frequency of Payroll Deductions. A Participant may purchase
shares of Stock under the Plan solely by means of payroll deductions. Payroll deductions, as designated by the Participant pursuant to Subsection (b) below, shall occur on each payday during participation in the Plan. 
  
 (b) Amount of Payroll Deductions. An Eligible Employee shall designate
on the enrollment form the portion of his or her Compensation that he or she elects to have withheld for the purchase of Stock. Such portion shall be a whole percentage of the Eligible Employee’s Compensation, but not less than 1% nor more than
10% or such lesser percentage established by the Committee from time to time. 
  

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 (c) Changing Withholding Rate. If a Participant wishes to change the rate of payroll withholding,
he or she may do so by filing a new enrollment form with the Company at the prescribed location at any time. The new withholding rate shall be effective as soon as reasonably practicable after such form has been received by the Company. The new
withholding rate shall be a whole percentage of the Eligible Employee’s Compensation, but not less than 1% nor more than 10% or such lesser percentage established by the Committee. 
  
 (d) Discontinuing Payroll Deductions. If a Participant wishes to discontinue employee contributions entirely, he or
she may do so by filing a new enrollment form with the Company at the prescribed location at any time. Payroll withholding shall cease as soon as reasonably practicable after such form has been received by the Company. (In addition, employee
contributions may be discontinued automatically pursuant to Section 8(b).) A Participant who has discontinued employee contributions may resume such contributions by filing a new enrollment form with the Company at the prescribed location. Payroll
withholding shall resume as soon as reasonably practicable after such form has been received by the Company. 
  
 (e) Limit on Number of Elections. No Participant shall make more than two elections under Subsection (c) or (d) above within any Contribution
Period. 
  
 SECTION 5. WITHDRAWAL FROM THE PLAN. 
  
 (a) Withdrawal. A Participant may elect to withdraw from the Plan by
filing the prescribed form with the Company at the prescribed location at any time before the last day of a Contribution Period. As soon as reasonably practicable thereafter, payroll deductions shall cease and the entire amount credited to the
Participant’s Plan Account shall be refunded to him or her in cash, without interest. No partial withdrawals shall be permitted. 
  
 (b) Re-Enrollment After Withdrawal. A former Participant who has withdrawn from the Plan shall not be a Participant until he or she re-enrolls in
the Plan under Section 3(c). Re-enrollment may be effective only at the commencement of an Offering Period. 
  
 SECTION 6. CHANGE IN EMPLOYMENT STATUS. 
  
 (a) Termination of Employment. Termination of employment as an Eligible Employee for any reason, including death, shall be treated as an automatic withdrawal from the Plan under Section 5(a). (A transfer from
one Participating Company to another shall not be treated as a termination of employment.) 
  
 (b) Leave of Absence. For purposes of the Plan, employment shall not be deemed to terminate when the Participant goes on a military leave, a sick leave or another bona fide leave of absence, if the leave
was approved by the Company in writing. Employment, however, shall be deemed to terminate 90 days after the Participant goes on a leave, unless a contract or statute guarantees his or her right to return to work. Employment shall be deemed to
terminate in any event when the approved leave ends, unless the Participant immediately returns to work. 
  

 3 

 (c) Death. In the event of the Participant’s death, the amount credited to his or her Plan
Account shall be paid to a beneficiary designated by him or her for this purpose on the prescribed form or, if none, to the Participant’s estate. Such form shall be valid only if it was filed with the Company at the prescribed location before
the Participant’s death. 
  
 SECTION 7. PLAN ACCOUNTS AND PURCHASE OF
SHARES. 
  
 (a) Plan Accounts. The Company shall
maintain a Plan Account on its books in the name of each Participant. Whenever an amount is deducted from the Participant’s Compensation under the Plan, such amount shall be credited to the Participant’s Plan Account. Amounts credited to
Plan Accounts shall not be trust funds and may be commingled with the Company’s general assets and applied to general corporate purposes. No interest shall be credited to Plan Accounts. 
  
 (b) Purchase Price. The Purchase Price for each share of Stock
purchased at the close of a Contribution Period shall be the lower of: 
  
 (i) 85% of the Fair Market Value of such share on the last trading day in such Contribution Period; or 
  
 (ii) 85% of the Fair Market Value of such share on the last trading day before the commencement of the applicable Offering Period (as
determined under Section 3(e)) or, in the case of the first Offering Period under the Plan, 85% of the price at which one share of Stock is offered to the public in the IPO. 
  
 (c) Number of Shares Purchased. As of the last day of each Contribution Period, each Participant shall be deemed to
have elected to purchase the number of shares of Stock calculated in accordance with this Subsection (c), unless the Participant has previously elected to withdraw from the Plan in accordance with Section 5(a). The amount then in the
Participant’s Plan Account shall be divided by the Purchase Price, and the number of shares that results shall be purchased from the Company with the funds in the Participant’s Plan Account. The foregoing notwithstanding, no Participant
shall purchase more than 4,000 shares of Stock with respect to any Contribution Period nor more than the amounts of Stock set forth in Sections 8(b) and 13(a). The Committee may determine with respect to all Participants that any fractional share,
as calculated under this Subsection (c), shall be (i) rounded down to the next lower whole share or (ii) credited as a fractional share. 
  
 (d) Available Shares Insufficient. In the event that the aggregate number of shares that all Participants elect to purchase during a Contribution
Period exceeds the maximum number of shares remaining available for issuance under Section 13(a), then the number of shares to which each Participant is entitled shall be determined by multiplying the number of shares available for issuance by a
fraction, the numerator of which is the number of shares that such Participant has elected to purchase and the denominator of which is the number of shares that all Participants have elected to purchase. 
  
 (e) Issuance of Stock. Certificates representing the shares of Stock
purchased by a Participant under the Plan shall be issued to him or her as soon as reasonably practicable after the 
  

 4 

 close of the applicable Contribution Period, except that the Committee may determine that such shares shall be held for
each Participant’s benefit by a broker designated by the Committee (unless the Participant has elected that certificates be issued to him or her). Shares may be registered in the name of the Participant or jointly in the name of the Participant
and his or her spouse as joint tenants with right of survivorship or as community property. 
  
 (f) Unused Cash Balances. An amount remaining in the Participant’s Plan Account that represents the Purchase Price for any fractional share shall be carried over in the Participant’s Plan Account to
the next Contribution Period. Any amount remaining in the Participant’s Plan Account that represents the Purchase Price for whole shares that could not be purchased by reason of Subsection (c) above, Section 8(b) or Section 13(a) shall be
refunded to the Participant in cash, without interest. 
  
 (g)
Stockholder Approval. Any other provision of the Plan notwithstanding, no shares of Stock shall be purchased under the Plan unless and until the Company’s stockholders have approved the adoption of the Plan. 
  
 SECTION 8. LIMITATIONS ON STOCK OWNERSHIP. 
  
 (a) Five Percent Limit. Any other provision of the Plan
notwithstanding, no Participant shall be granted a right to purchase Stock under the Plan if such Participant, immediately after his or her election to purchase such Stock, would own stock possessing more than 5% of the total combined voting power
or value of all classes of stock of the Company or any parent or Subsidiary of the Company. For purposes of this Subsection (a), the following rules shall apply: 
  
 (i) Ownership of stock shall be determined after applying the attribution rules of section 424(d) of the
Code; 
  
 (ii) Each Participant shall be deemed
to own any stock that he or she has a right or option to purchase under this or any other plan; and 
  
 (iii) Each Participant shall be deemed to have the right to purchase 4,000 shares of Stock under this Plan with respect to each
Contribution Period. 
  
 (b) Dollar Limit. Any other
provision of the Plan notwithstanding, no Participant shall purchase Stock with a Fair Market Value in excess of the following limit: 
  
 (i) In the case of Stock purchased during an Offering Period that commenced in the current calendar year, the limit shall be equal to (A)
$25,000 minus (B) the Fair Market Value of the Stock that the Participant previously purchased in the current calendar year (under this Plan and all other employee stock purchase plans of the Company or any parent or Subsidiary of the Company).

  
 (ii) In the case of Stock purchased during an
Offering Period that commenced in the immediately preceding calendar year, the limit shall be equal 
  

 5 

 to (A) $50,000 minus (B) the Fair Market Value of the Stock that the Participant previously purchased
(under this Plan and all other employee stock purchase plans of the Company or any parent or Subsidiary of the Company) in the current calendar year and in the immediately preceding calendar year. 
  
 (iii) In the case of Stock purchased during an Offering
Period that commenced in the second preceding calendar year, the limit shall be equal to (A) $75,000 minus (B) the Fair Market Value of the Stock that the Participant previously purchased (under this Plan and all other employee stock purchase plans
of the Company or any parent or Subsidiary of the Company) in the current calendar year and in the two preceding calendar years. 
  
 For purposes of this Subsection (b), the Fair Market Value of Stock shall be determined in each case as of the beginning of the Offering Period in which such Stock is
purchased. Employee stock purchase plans not described in section 423 of the Code shall be disregarded. If a Participant is precluded by this Subsection (b) from purchasing additional Stock under the Plan, then his or her employee contributions
shall automatically be discontinued and shall resume at the beginning of the earliest Contribution Period ending in the next calendar year (if he or she then is an Eligible Employee). 
  
 SECTION 9. RIGHTS NOT TRANSFERABLE. 
  
 The rights of any Participant under the Plan, or any Participant’s interest in any Stock or moneys to which he or she may be entitled under the Plan,
shall not be transferable by voluntary or involuntary assignment or by operation of law, or in any other manner other than by beneficiary designation or the laws of descent and distribution. If a Participant in any manner attempts to transfer,
assign or otherwise encumber his or her rights or interest under the Plan, other than by beneficiary designation or the laws of descent and distribution, then such act shall be treated as an election by the Participant to withdraw from the Plan
under Section 5(a). 
  
 SECTION 10. NO RIGHTS AS AN EMPLOYEE. 

 
 Nothing in the Plan or in any right granted under the Plan shall confer
upon the Participant any right to continue in the employ of a Participating Company for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Participating Companies or of the Participant, which rights
are hereby expressly reserved by each, to terminate his or her employment at any time and for any reason, with or without cause. 
  
 SECTION 11. NO RIGHTS AS A STOCKHOLDER. 
  
 A Participant shall have no rights as a stockholder with respect to any shares of Stock that he or she may have a right to purchase under the Plan until
such shares have been purchased on the last day of the applicable Contribution Period. 
  

 6 

 SECTION 12. SECURITIES LAW REQUIREMENTS. 
  
 Shares of Stock shall not be issued under the Plan unless the issuance and delivery of such shares comply with (or are
exempt from) all applicable requirements of law, including (without limitation) the Securities Act of 1933, as amended, the rules and regulations promulgated thereunder, state securities laws and regulations, and the regulations of any stock
exchange or other securities market on which the Company’s securities may then be traded. 
  
 SECTION 13. STOCK OFFERED UNDER THE PLAN. 
  
 (a) Authorized Shares. The number of shares of Stock available for purchase under the Plan shall be 500,000 (subject to adjustment pursuant to this Section 13). As of January 1 of each year, commencing with the
year 2000, the aggregate number of shares of Stock available for purchase during the life of the Plan shall automatically increase by a number equal to the lesser of (a) 2% of the total number of shares of Stock then outstanding or (b) 500,000.

  
 (b) Anti-Dilution Adjustments. The aggregate number of
shares of Stock offered under the Plan, the share limitation described in Section 7(c) and the price of shares that any Participant has elected to purchase shall be adjusted proportionately by the Committee for any increase or decrease in the number
of outstanding shares of Stock resulting from a subdivision or consolidation of shares or the payment of a stock dividend, any other increase or decrease in such shares effected without receipt or payment of consideration by the Company, the
distribution of the shares of a Subsidiary to the Company’s stockholders or a similar event. 
  
 (c) Reorganizations. Any other provision of the Plan notwithstanding, immediately prior to the effective time of a Corporate Reorganization, the
Offering Period and Contribution Period then in progress shall terminate and shares shall be purchased pursuant to Section 7, unless the Plan is assumed by the surviving corporation or its parent corporation pursuant to the plan of merger or
consolidation. The Plan shall in no event be construed to restrict in any way the Company’s right to undertake a dissolution, liquidation, merger, consolidation or other reorganization. 
  
 SECTION 14. AMENDMENT OR DISCONTINUANCE. 
  
 The Plan shall continue in effect until the tenth anniversary of the date of
the Plan’s approval by the Company’s stockholders; provided, however, that the Board shall have the right to amend, extend, suspend or terminate the Plan at any time and without notice. Except as provided in Section 13, any increase in the
aggregate number of shares of Stock to be issued under the Plan shall be subject to approval by a vote of the stockholders of the Company. In addition, any other amendment of the Plan shall be subject to approval by a vote of the stockholders of the
Company to the extent required by an applicable law or regulation. The Plan was amended on October 19, 2000 by the Board to increase the share limitation described in Section 7(c) from 500 shares to 1,500 shares, on April 15, 2003 by the Board to
increase such share limitation from 1,500 shares to 4,000 shares, and on April 30, 2004 by the Board to limit the term of the Plan to the tenth anniversary of the date of the Plan’s approval by the Company’s stockholders. 
  

 7 

 SECTION 15. DEFINITIONS. 
  

(a) “Board” means the Board of Directors of the Company, as constituted from time to time. 
  
 (b) “Code” means the Internal Revenue Code of 1986, as
amended. 
  
 (c) “Committee” means a committee of
the Board, as described in Section 2. 
  
 (d)
“Company” means Marimba, Inc., a Delaware corporation. 
  
 (e) “Compensation” means (i) the total compensation paid in cash to a Participant by a Participating Company, including salaries, wages, bonuses, incentive compensation, commissions, overtime pay and shift premiums, plus
(ii) any pre-tax contributions made by the Participant under section 401(k) or 125 of the Code. “Compensation” shall exclude all non-cash items, moving or relocation allowances, cost-of-living equalization payments, car allowances, tuition
reimbursements, imputed income attributable to cars or life insurance, severance pay, fringe benefits, contributions or benefits received under employee benefit plans, income attributable to the exercise of stock options, and similar items. The
Committee shall determine whether a particular item is included in Compensation. 
  
 (f) “Contribution Period” means a six-month period during which contributions may be made toward the purchase of Stock under the Plan, as determined pursuant to Section 3(b). 
  
 (g) “Corporate Reorganization” means: 
  
 (i) The consummation of a merger or consolidation of the
Company with or into another entity or any other corporate reorganization; or 
  
 (ii) The sale, transfer or other disposition of all or substantially all of the Company’s assets or the complete liquidation or dissolution of the Company. 
  
 (h) “Eligible Employee” means any employee of a
Participating Company whose customary employment is for more than five months per calendar year and for more than 20 hours per week. 
  
 The foregoing notwithstanding, an individual shall not be considered an Eligible Employee if his or her participation in the Plan is prohibited by the law
of any country which has jurisdiction over him or her or if he or she is subject to a collective bargaining agreement that does not provide for participation in the Plan. 
  
 (i) “Exchange Act” means the Securities Exchange Act of 1934, as amended. 
  
 (j) “Fair Market Value” means the market price of Stock,
determined by the Committee as follows: 
  
 (i)
If the Stock was traded on The Nasdaq National Market on the date in question, then the Fair Market Value shall be equal to the last-transaction price quoted for such date by The Nasdaq National Market; 
  

 8 

 (ii) If the Stock was traded on a stock exchange on the date in question, then the Fair
Market Value shall be equal to the closing price reported by the applicable composite transactions report for such date; or 
  
 (iii) If none of the foregoing provisions is applicable, then the Fair Market Value shall be determined by the Committee in good faith on
such basis as it deems appropriate. 
  
 Whenever possible, the determination of
Fair Market Value by the Committee shall be based on the prices reported in The Wall Street Journal or as reported directly to the Company by Nasdaq or a stock exchange. Such determination shall be conclusive and binding on all persons.

  
 (k) “IPO” means the initial offering of Stock
to the public pursuant to a registration statement filed by the Company with the Securities and Exchange Commission. 
  
 (l) “Offering Period” means a 24-month period with respect to which the right to purchase Stock may be granted under the Plan, as
determined pursuant to Section 3(a). 
  
 (m)
“Participant” means an Eligible Employee who elects to participate in the Plan, as provided in Section 3(c). 
  
 (n) “Participating Company” means (i) the Company and (ii) each present or future Subsidiary designated by the Committee or the Board as
a Participating Company. 
  
 (o) “Plan” means
this Marimba, Inc. 1999 Employee Stock Purchase Plan, as it may be amended from time to time. 
  
 (p) “Plan Account” means the account established for each Participant pursuant to Section 7(a). 
  
 (q) “Purchase Price” means the price at which Participants may purchase Stock under the Plan, as determined pursuant to Section 7(b).

  
 (r) “Stock” means the Common Stock of the
Company. 
  
 (s) “Subsidiary” means any
corporation (other than the Company) in an unbroken chain of corporations beginning with the Company, if each of the corporations other than the last corporation in the unbroken chain owns stock possessing 50% or more of the total combined voting
power of all classes of stock in one of the other corporations in such chain. 
  

 9

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