EXHIBIT 4.1.2

LEGATO SYSTEMS, INC.

1995 STOCK OPTION/STOCK ISSUANCE PLAN

(As Amended through March 26,1999)

(Reflects Stock Splits through August 16, 1999)

(Amended on June 10th 2003)

ARTICLE ONE

ARTICLE FOUR AUTOMATIC OPTION GRANT PROGRAM

I. OPTION TERMS

A. Grant Dates. Option grants shall be made on the dates specified below:

1. Each Eligible Director who is a non-employee Board member on the Plan Effective Date and each Eligible Director who is first elected or appointed as a non-employee Board member after such date shall automatically be granted, on the Plan Effective Date or on the date of such initial election or appointment (as the case may be), a Non-Statutory Option to purchase 96,000 shares of Common Stock.

2. On the date of each Annual Stockholders Meeting, beginning, with the 1996 Annual Meeting, each individual who is to continue to serve as an Eligible Director after such meeting, shall automatically be granted, whether or not such individual is standing for re-election as a Board member at that Annual Meeting, a Non-Statutory Option to purchase an additional 40,000 shares of Common Stock, provided such individual has served as a non-employee Board member for at least six (6) months prior to the date of such Annual Meeting. There shall be no limit on the number of such 40,000-share option grants any one Eligible Director may receive over his or her period of Board service.

B. Exercise Price.

1. The exercise price per share shall be equal to one hundred percent (100%) of the Fair Market Value per share of Common Stock on the option grant date.

2. The exercise price shall be payable in one or more of the alternative forms authorized under the Discretionary Option Grant Program. Except to the extent the sale and remittance procedure specified thereunder is utilized, payment of the exercise price for the purchased shares must be made on the Exercise Date.

C. Option Term. Each option shall have a term of tem (1) years measured from the option grant date.

D. Exercise and Vesting of Options. Each option shall be immediately exercisable for any or all of the option shares. However, any shares purchased

under the option shall be subject to repurchase by the Corporation, at the exercise price paid per share, upon the Optionee’s cessation of Board service prior to vesting in those shares. Each initial grant shall vest, and the Corporation’s repurchase right shall lapse, in a series of four (4) equal and successive annual installments over the Optionee’s period of continued service as a Board member, with the first such installment to vest upon the Optionee’s completion of one (1) year of Board service measured from the option grant date. Each annual grant shall vest, and the Corporation’s repurchase right shall lapse, in two (2) equal and successive annual installments upon the Optionee’s completion of each year of Board service measured from the option grant date.

E. Effect of Termination of Board Service. The following provisions shall govern the exercise of any options held by the Optionee at the time of the Optionee ceases to serve as a Board member:

(i) The Optionee (or, in the event of Optionee’s death, the personal representative of the Optionee’s estate or the person or persons to whom the option is transferred pursuant to the Optionee’s will or in accordance with the laws of descent and distribution) shall have a twelve (12)-month period following the date of such cessation of Board service in which to exercise each such option.

(ii) During the twelve (12)-month exercise period, the option may not be exercised in the aggregate for more than the number of vested shares of Common Stock for which the option is exercisable at the time of the Optionee’s cessation of Board service.

(iii) Should the Optionee cease to serve as a Board member by reason of death of Permanent Disability, then all shares at the time subject to the optional shall immediately vest so that such option may, during the twelve (12)­month exercise period following such cessation of Board service, be exercised for all or any portion of such shares as fully-vested shares of Common Stock.

(iv) In no event shall the option remain exercisable after the expiration of the option term. Upon the expiration of the twelve (12)-month exercise period or (if earlier) upon the expiration of the option term, the option shall terminate and cease to be outstanding for any vested shares for which the option has not been exercised. However, the option shall, immediately upon the Optionee’s cessation of Board service, terminate and cease to be outstanding to the extent it is not exercisable for vested shares on the date of such cessation of Board service.

II. CORPORATE TRANSACTION/CHANGE IN CONTROL/ HOSTILE TAKE-OVER

A. In the event of any Corporate Transaction, the shares of Common Stock at the time subject to each outstanding option but not otherwise vested shall automatically vest in full so that each option shall, immediately prior to the effective date of the Corporate Transaction, become fully exercisable for all of the shares of Common Stock at the time subject to such option and may be exercised for all or any portion of such shares as fully-vested shares of

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Common Stock. Immediately following the consummation of the Corporate Transaction, each automatic option grant shall terminate and cease to be outstanding, except to the extent assumed by the successor corporation (or parent thereof).

B. In connection with any Change in Control, the shares of Common Stock at the time subject to each outstanding option but not otherwise vested shall automatically vest in full so that each such option shall, immediately prior to the effective date of the Change in Control, become fully exercisable for all of the share of Common Stock at the time subject to such option and may be exercised for all or any portion of such shares as fully-vested shares of Common Stock. Each such option shall remain exercisable for such fully-vested option shares until the expiration or sooner termination of the option term or the surrender of the option in connection with a Hostile Take-Over.

C. Upon the occurrence of a Hostile Take-Over, the Optionee shall have a thirty (30)-day period in which to surrender to the Corporation each automatic option held by him or her for a period of at least six (6) months. The Optionee shall in return be entitled to a cash distribution from the Corporation in an amount equal to the excess of (i) the Take-Over Price of the shares of Common Stock at the time subject to the surrendered option (whether or not the Optionee is otherwise at the time vested in those shares) over (ii) the aggregate exercise price payable for such shares. Such cash distribution shall be paid within five (5) days following the surrender of the option to the Corporation. No approval or consent of the Board shall be required in connection with such option surrender and cash distribution.

D. The grant of options under the Automatic Option Grant Program shall in no way affect the right of the Corporation to adjust, reclassify, reorganize or otherwise change its capital or business structure or to merge, consolidate, dissolve, liquidate or sell or transfer all or any part of its business or assets.

III. REMAINING TERMS

The remaining terms of each option granted under the Automatic Option Grant Program shall be the same as the terms in effect for option grants made under the Discretionary Option Grant Program.

ARTICLE FIVE

MISCELLANEOUS

I. FINANCING

A. The Plan Administrator may permit any Optionee or Participant to pay the option exercise price under the Discretionary Option Grant Program or the purchase price for share issued under the Stock Issuance Program by delivering a promissory note payable in one or more installments. The terms of any such promissory note (including the interest rate and the terms of repayment) shall be established by the Plan Administrator in its sole discretion. Promissory notes may be authorized with or without security or collateral. In all events, the

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maximum credit available to the Optionee or Participant may not exceed the sum of (i) the aggregate option exercise price or purchase price payable for the purchase shares plus (ii) any Federal, state and local income and employment tax liability incurred by the Optionee or the Participant in connection with the option exercise or share purchase.

B. The Plan Administrator may, in its discretion, determine that one or more such promissory notes shall be subject to forgiveness by the Corporation in whole or in part upon such terms as the Plan Administrator may deem appropriate.

II. TAX WITHHOLDING

A. The Corporation’s obligation to deliver shares of Common Stock upon the exercise of options or stock appreciation rights or upon the issuance or vesting of such shares under the Plan shall be subject to the satisfaction of all applicable Federal, state and local income and employment tax withholding requirements.

B. The Plan Administrator may, in its discretion, provide any or all holders of Non-Statutory Options or unvested shares of Common Stock under the Plan (other than the options granted or the shares issued under the Automatic Option Grant Program) with the right to use shares of Common Stock in satisfaction of all or part of the Taxes incurred by such holders in connection with the exercise of their options or the vesting of their shares. Such right may be provided to any such holder in either or both of the following formats:

(i) Stock Withholding: The election to have the Corporation withhold, from the shares of Common Stock otherwise issuable upon the exercise of such Non-Statutory Option or the vesting of such shares, a portion of those shares with an aggregate Fair Market Value equal to the percentage of the Taxes (not to exceed one hundred percent (100%) designated by the holder.

(ii) Stock Delivery: The election to deliver to the Corporation, at the time the Non-Statutory Option is exercised or the shares vest, one or more share of Common Stock previously acquired by such holder (other than in connection with the option exercise or share vesting triggering the Taxes) with an aggregate Fair Market Value equal to the percentage of the Taxes (not to exceed one hundred percent (100%) designated by the holder.

III. EFFECTIVE DATE AND TERM OF THE PLAN

A. The Plan became effective on the Plan Effective Date and the initial options under the Automatic Option Grant Program were made to the Eligible Directors at that time. The Plan was subsequently amended on March 13, 1998 to (a) increase the share reserve, (b) limit the annual increases to the share reserve, and (c) expand the Board’s authority to administer the Plan and to amend the Plan without stockholder approval. The 1998 restatement, including the 4,000,000-share increase, was approved by the Corporation’s stockholders on May 14, 1998. The Plan was subsequently amended on March 26, 1999 to increase the share reserve by 2,000,000 shares and the amendment was approved by the stockholders at the 1999 Annual Meeting. All share numbers reflect two for one stock splits effected on July 5, 1996, April 17, 1998 and August 13, 1999.

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B. The Plan shall serve as the successor to the Predecessor Plan, and no further option grants shall be made under the Predecessor Plan after the Plan Effective Date. All options outstanding under the Predecessor Plan as of such date shall, immediately upon approval of the plan by the Corporation’s stockholders, be incorporated into the Plan and treated as outstanding options under the Plan. However, each outstanding option so incorporated shall continue to be governed solely by the terms of the documents evidencing such option, and no provision of the Plan shall be deemed to affect or otherwise modify the rights or obligations of the holders of such incorporated options with respect to their acquisition of share of Common Stock.

C. One or more provisions of the Plan, including (without limitations) the option/vesting acceleration provisions of Article Two relating to Corporate Transactions and Change in Control, may, in the Plan Administrator’s discretion, be extended to one or more options incorporated from the Predecessor Plan which do not otherwise contain such provisions.

D. The Plan shall terminate upon the earliest of (i) April 30, 2005, (ii) the date on which all shares available for issuance under the Plan shall have been issued pursuant to the exercise of the options or the issuance of shares (whether vested or unvested) under the Plan or (iii) the termination of all outstanding options in connection with a Corporate Transaction. Upon such Plan termination, all options and unvested stock issuance outstanding on such date shall thereafter continue to have force and effect in accordance with the provisions of the documents evidencing such options or issuances.

IV. AMENDMENT OF THE PLAN

A. The Board shall have complete and exclusive power and authority to amend or modify the Plan in any or all respects. However, no such amendment or modification shall adversely affect the rights and obligations with respect to options, stock appreciation rights or unvested stock issuances at the time outstanding under the Plan unless the Optionee or the Participant consents to such amendment or modification. The Board shall obtain the approval of the Corporation’s stockholders to any Plan amendment to the extent required by law or to the extent that the Board deems it advisable.

B. Options to purchase shares of Common Stock may be granted under the Discretionary Option Grant Program and shares of Common Stock may be issued under the Stock Issuance Program that are in each instance in excess of the number of shares then available for issuance under the Plan, provided that to the extent stockholder approval is required of any such increase, any excess shares actually issued under those programs shall be held in escrow until there is obtained stockholder approval of amendment sufficiently increasing the approval is not obtained within twelve (12) months after the date the first such excess issuances are made, then (i) any unexercised options granted on the basis of such excess shares issued under the Plan and held in escrow, together with interest (at the applicable Short Term Federal Rate) for the period the shares were held in escrow, and such shares shall thereupon be automatically cancelled and cease to be outstanding.

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V. USE OF PROCEEDS

Any cash proceeds received by the Corporation from the sale of shares of Common Stock under the Plan shall be used for general corporate purposes.

VI. REGULATORY APPROVALS

A. The implementation of the Plan, the granting of any option or stock appreciation right under the Plan and the issuance of any shares of Common Stock (i) upon the exercise of any option or stock appreciation right or (ii) under the Stock Issuance Program shall be subject to the Corporation’s procurement of all approvals and permits required by regulatory authorities having jurisdiction over the Plan, the options and stock appreciation rights granted under it and the shares of Common Stock issued pursuant to it.

B. No shares of Common Stock or other assets shall be issued or delivered under the Plan unless and until there shall have been compliance with all applicable requirements of Federal and state securities laws, including the filing and effectiveness of the Form S-8 registration statement for the shares of Common Stock issuance under the Plan, and all applicable listing requirements of any stock exchange (or the NASDAQ National Market, if applicable) on which Common Stock is then listed for trading.

VII. NO EMPLOYMENT/SERVICE RIGHTS

Nothing in the Plan shall confer upon the Optionee or the Participant any right to continue in Service for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Parent or Subsidiary employing or retaining such person) or of the Optionee or the Participant, which rights are hereby expressly reserved by each, to terminate such person’s Service at any time for any reason, with or without cause.

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APPENDIX

The following definitions shall be in effect under the Plan:

A. Automatic Option Grant Program shall mean the automatic option grant program in effect under the Plan.

B. Board shall mean the Corporation’s Board of Directors.

C. Change in Control shall mean a change in ownership or control of the Corporation affected through neither of the following transactions:

(i) the acquisition, directly or indirectly, by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation) of beneficial ownership (within the meaning of Rulel3d-3 of the 1934 Act) of securities pursuant to a tender or exchange offer made directly to the Corporation’s stockholders which the Board does not recommend such stockholders to accept, or

(ii) a change in the composition of the Board over a period of thirty-six (35) consecutive months or less such that a majority of the Board members ceases, by reason of one or more contested elections of Board membership, to be comprised of individuals who either (A) have been Board members continuously since the beginning of such period or (B) have been elected or nominated for election as Board members during such period by at least a majority of the Board members described in clause (A) who were still in office at the time the Board approved such election or nomination.

D. Code shall mean the Internal Revenue Code of 1986, as amended.

E. Common Stock shall mean the Corporation’s common stock.

F. Corporate Transaction shall mean either of the following stockholder-approved transactions to which the Corporation is a party:

(i) a merger or consolidation in which securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation’s outstanding securities are transferred to a person or persons different from the persons holding those immediately prior to such transaction; or

(ii) the sale, transfer or other disposition of all or substantially all of the Corporation’s assets in complete liquidation or dissolution of the Corporation

G. Corporation shall mean Legato Systems, Inc., a Delaware corporation.

H. Discretionary Option Grant Program shall mean the discretionary option grant program in effect under the Plan.

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I. Domestic Relations Order shall mean any judgment, decree or order (including approval of a property settlement agreement) which provides or otherwise conveys, pursuant to applicable State domestic relations laws (including community property laws), marital property rights to any spouse or former spouse of the Optionee.

J. Eligible Director shall mean a non-employee Board member eligible to participate in the Automatic Option Grant Program in accordance with the eligibility provisions of Article One.

K. Employee shall mean an individual who is in the employ of the Corporation (or any Parent or Subsidiary), subject to the control and direction of the employer entity as to both the work to be performed and the manner and method of performance.

L. Exercise Date shall mean the date on which the Corporation shall have received written notice of the option exercise.

M. Fair Market Value per share of Common Stock on any relevant date shall be determined in accordance with the following provisions:

(i) If the Common Stock is at the time traded on the NASDAQ National Market, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question, as such price is reported by the National Association of Securities Dealers on the NASDAQ National Market or any successor system. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists.

(ii) If the Common Stock is at the time listed on any Stock Exchange, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question on the Stock Exchange determined by the Plan Administrator to be the primary market for the Common Stock, as such price is officially quoted in the composite tape of transactions on such exchange. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists.

(iii) For purposes of option grants made on the Plan Effective Date, the Fair Market Value shall be deemed to be equal to the established initial offering price per share.

N. Hostile Take-Over shall mean a change in ownership of the Corporation affected through the following transaction:

(i) the acquisition, directly or indirectly, by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation) of beneficial ownership (within the mean of Rule 13d-3 of the 1934 Act) of securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation’s outstanding securities pursuant to a tender or exchange offer made directly to the Corporation’s stockholders which the Board does not recommend such stockholders to accept, and

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(ii) more than fifty percent (50%) of the securities so acquired are accepted from persons other than Section 16 Insiders.

O. Incentive Option shall mean an option which satisfies the requirements of Code Section 422.

P. Involuntary Termination shall mean the termination of the Service of any individual which occurs by reason of:

(i) such individual’s involuntary dismissal or discharge by the Corporation for reasons other than Misconduct, or

(ii) such individual’s voluntary resignation following (A) a change in his or her position with the Corporation which materially reduces his or her level of responsibility, (B) a reduction in his or her level of compensation (including base salary, fringe benefits and any non-discretionary and objective-standard incentive payment or bonus award) by more than fifteen percent (15%) or (C) a relocation of such individual’s place of employment by more than fifty (50) miles, provided and only if such change, reduction or relocation is effected by the Corporation without the individual’s consent.

Q. Misconduct shall mean the commission of any act of fraud, embezzlement or dishonesty by the Optionee or Participant, any unauthorized use or disclosure by such person of confidential information or trade secrets of the Corporation (or any Parent or Subsidiary), or any other intentional misconduct by such person adversely affecting the business or affairs of the Corporation (or any Parent or Subsidiary) in a material manner. The foregoing definition shall not be deemed to be inclusive of all the acts or omissions which the Corporation (or any Parent or Subsidiary) may consider as grounds for the dismissal or discharge of any Optionee, Participant or other person in the Service of the Corporation (or any Parent or Subsidiary).

R. 1934 Act shall mean the Securities Exchange Act of 1934, as amended.

S. Non-Statutory Option shall mean an option not intended to satisfy the requirements of Code Section 422.

T. Optionee shall mean any person to whom an option is granted under the Discretionary Option Grant or Automatic Option Grant Program.

U. Parent shall mean any corporation (other than the Corporation) in an unbroken chain of corporations ending with the Corporation, provided each corporation in the unbroken chain (other than the Corporation) owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain.

V. Participant shall mean any person who is issued shares of Common Stock under the Stock Issuance Program.

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W. Permanent Disability or Permanently Disabled shall mean the inability of the Optionee or the Participant to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment expected to result in death or to be of continuous duration of twelve (12) months or more. However, solely for the purposes of the Automatic Option Grant Program, Permanent Disability or Permanently Disabled shall mean the inability of the non-employee Board member to perform his or her usual duties as a Board member by reason of any medically determinable physical or mental impairment expected to result in death or to be of continuous duration of twelve (12) months or more.

X. Plan shall mean the Corporation’s 1995 Stock Option/Stock Issuance Plan, as set forth in this document.

Y. Plan Administrator shall mean the particular entity, whether the Primary Committee, the Board or the Secondary Committee, which is authorized to administer the Discretionary Option Grant and Stock Issuance Programs with respect to one or more classes of eligible persons, to the extent such entity is carrying out its administrative functions under those programs with respect to the persons under its jurisdiction.

Z. Plan Effective Date shall mean the date on which the Underwriting Agreement is executed and the initial public offering price of the Common Stock is established.

AA. Predecessor Plan shall mean the Corporation’s existing 1989 Stock Option and Restricted Stock Plan

BB. Primary Committee shall mean the committee of two (2) or more non-employee Board members appointed by the Board to administer the Discretionary Option Grant and Stock Issuance Programs with respect to Section 16 Insiders.

CC. Qualified Domestic Relations Order shall mean a Domestic Relations Order which substantially complies with the requirements of Code Section 414(p). The Plan Administrator shall have the sole discretion to determine whether a Domestic Relations Order is a Qualified Relations Order.

DD. Secondary Committee shall mean a committee of two (2) or more Board members appointed by the Board to administer the Discretionary Option Grant and Stock Issuance Programs with respect to eligible persons other than Section 16 Insiders.

EE. Section 16 Insider shall mean an officer or director of the Corporation subject to the short-swing profit liabilities of Section 16 of the 1934 Act.

FF. Section 12(g) Registration Date shall mean the first date on which the Common Stock is registered under Section 12(g) of the 1934 Act:

GG. Service shall mean the provision of services to the Corporation (or any Parent or Subsidiary) by a person in the capacity of an Employee, a non-employee member of the board of directors or a consultant or independent advisor, except to the extent otherwise specifically provided in the documents evidencing the option’ grant or stock issuance.

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HH. Stock Exchange shall mean either the American Stock Exchange or the New York Stock Exchange.

II. Stock Issuance Agreement shall mean the agreement entered into by the Corporation and the Participant at the time of issuance of shares of Common Stock under the Stock Issuance Program.

JJ. Stock Issuance Program shall mean the stock issuance program in effect under the Plan.

KK. Subsidiary shall mean any corporation (other than the Corporation) in an unbroken chain or corporations beginning with the Corporation, provided each corporation (other than the last corporation) in the unbroken chain owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain.

LL. Take-Over Price shall mean the greater of (i) the Fair Market Value per share of Common Stock on the date the option is surrendered to the Corporation in connection with a Hostile Take-Over or (ii) the highest reported price per share of Common Stock paid by the tender offeror in effecting such Hostile Take-Over. However, if the surrendered option is an Incentive Option, the Take-Over Price shall not exceed the clause (i) price per share.

MM. Taxes shall mean the Federal, state and local income and employment tax liabilities incurred by the holder of Non-Statutory Options or unvested shares of Common Stock in connection with the exercise of such holder’s options or the vesting of his or her shares.

NN. 10% Stockholder shall mean the owner of the stock (as determined under Code Section 424(d) possessing ten percent (10%) or more of the total combined voting power of all classes of stock of the Corporation (or any Parent or Subsidiary).

OO. Underwriting Agreement shall mean the agreement between the Corporation and the underwriter or underwriters managing the initial public offering of the Common Stock.

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