EXHIBIT 10.20**INFORMATICA CORPORATION****JOHN ENTENMANN SEVERANCE AGREEMENT AND RELEASE**     This Severance Agreement and Release (“Agreement”) is made by and between InformaticaCorporation (the “Company”), and John Entenmann (“Executive”).     WHEREAS, Executive was employed by the Company as its Executive Vice President, CorporateStrategy and Marketing;     WHEREAS, Executive has resigned from such position effective November 1, 2005, and     WHEREAS, the Executive agrees to release the Company other from any claims arising from orrelated to Executive’s service relationship;     NOW THEREFORE, in consideration of the mutual promises made herein, the Company and Executive(collectively referred to as “the Parties”) hereby agree as follows:     1. Separation of Employment. Executive hereby agrees, not later than October 19,2005, to provide the Company a signed and irrevocable letter of resignation acknowledging theresignation of his employment effective upon November 1, 2005 (the “Separation Date”).     2. Payment of Salary. Executive shall be entitled to all salary, wages and accruedvacation and all other benefits due to Executive through the Separation Date.     3. Consideration. As consideration for Executive entering into this Agreement, theCompany agrees to provide Executive with the following additional benefits:          (a) Lump-Sum Salary Payment. A lump-sum payment equal to two (2) months’ ofExecutive’s annual base salary, specifically **$47,500.00**, less applicable withholding.          (b) Lump-Sum COBRA Payment. A lump-sum payment equal to two (2) months’ COBRApremiums, specifically **$2,250.26**.          (c) Performance Bonus Payment. A lump-sum payment (less applicable withholding)awarded to Executive reflecting Executive’s allocation of any performance bonus payable coincidentwith the Company’s performance for the third (3rd) quarter of 2005 — with such amountto be paid to Executive at such time as Second Half 2005 Bonuses are paid out generally to theCompany’s employees. Such bonus amount shall be reduced by any commissions refund payable toCompany by Executive.     4. Release of Claims. Executive agrees that the foregoing consideration representssettlement in full of all outstanding obligations owed to Executive by the Company. Executive, onbehalf of himself and his respective heirs, executors and assigns, hereby fully and foreverreleases the Company and its officers, directors, employees, investors, shareholders,administrators, predecessor and successor corporations, and assigns, of and from any claim, duty,obligation or cause of action relating to any matters of any kind, whether presently known orunknown, suspected or unsuspected,
 

 
that any of them may possess arising from any omissions, acts or facts that have occurred upuntil and including the effective date of this Agreement including, without limitation,          (a) any and all claims relating to or arising from Executive’s employment relationship withthe Company and the termination of that relationship;          (b) any and all claims relating to, or arising from, Executive’s right to purchase, or actualpurchase of shares of stock of the Company;          (c) any and all claims for wrongful discharge of employment; breach of contract, both expressand implied; breach of a covenant of good faith and fair dealing, both express and implied;negligent or intentional infliction of emotional distress; negligent or intentionalmisrepresentation; negligent or intentional interference with contract or prospective economicadvantage; and defamation;          (d) any and all claims for violation of any federal, state or municipal statute, including,but not limited to, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, theAge Discrimination in Employment Act of 1967, the Americans with Disabilities Act of 1990, and theCalifornia Fair Employment and Housing Act;          (e) any and all claims arising out of any other laws and regulations relating to employment oremployment discrimination; and          (f) any and all claims for attorneys’ fees and costs.The Company and Executive agree that the release set forth in this section shall be and remain ineffect in all respects as a complete general release as to the matters released. This release doesnot extend to any obligations incurred under this Agreement.     The parties acknowledge that they have been advised by legal counsel and are familiar with theprovisions of California Civil Code Section 1542, which provides as follows:**A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT KNOW OR SUSPECT TOEXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM MUST HAVEMATERIALLY AFFECTED HIS SETTLEMENT WITH THE DEBTOR.**     The parties, being aware of said Code Section, agrees to expressly waive any rights they mayhave thereunder, as well as under any other statute or common law principles of similar effect.     5. Return of Company Property. Executive agrees to return all Company property,including all computing equipment, to the Company upon the effectiveness of this Agreement.     6. Indemnification. Executive shall be entitled to indemnification, in accordancewith the applicable provisions of the Company’s articles of incorporation and bylaws, againstexpense, liability and loss that Executive may incur by reason of any action, suit or proceedingarising from or relating to the performance of Executive’s duties as an officer of the Company orany of its subsidiaries.
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     7. Mutual Non-Disparagement. The Company agrees that its executive officers willrefrain from any disparagement, criticism, defamation, slander of Executive, or tortiousinterference with the contracts and relationships of the Executive. Executive agrees to refrainfrom any disparagement, criticism, defamation, slander of the Company or its employees, or tortiousinterference with the contracts and relationships of the Company.     8. Non-Solicitation. In consideration for the severance benefits Executive is toreceive herein Executive agrees that he will not, at any time during the six months following hisSeparation Date, directly or indirectly solicit any individuals to leave the Company’s employ forany reason or interfere in any other manner with the employment relationships at the time existingbetween the Company and its current employees. The foregoing restrictions will not apply to anygeneral advertisements or solicitations that are published in a publicly available medium or insituations where a Company employee initially approaches and solicits Executive in connection witha position available with Executive’s then current employer.     9. SECTION INTENTIONALLY LEFT BLANK     10. Tax Consequences. The Company makes no representations or warranties with respectto the tax consequences of the payment of any sums or provision of any benefits or acceleratedvesting to Executive under the terms of this Agreement. The Company will withhold sums fromExecutive’s compensation hereunder sufficient to satisfy the Company’s withholding obligations.Executive agrees and understands that he is responsible for payment, if any, of local, state and/orfederal taxes on the sums paid hereunder by the Company and any penalties or assessments thereon.     11. No Admission of Liability. No action taken by the Parties hereto, or either ofthem, either previously or in connection with this Agreement shall be deemed or construed to be (a)an admission of the truth or falsity of any claims heretofore made or (b) an acknowledgment oradmission by either party of any fault or liability whatsoever to the other party or to any thirdparty.     12. Costs. The Parties shall each bear their own costs, expert fees, attorneys’ feesand other fees incurred in connection with this Agreement.     13. Arbitration and Equitable Relief.          (a) The parties hereto agree that, to the extent permitted by law, any dispute or controversyarising out of, relating to, or in connection with this Agreement, or the interpretation, validity,construction, performance, breach, or termination thereof shall be settled by arbitration to beheld in San Mateo County, California, in accordance with the National Rules for the Resolution ofEmployment Disputes then in effect of the American Arbitration Association (the “Rules”). Thearbitrator may grant injunctions or other relief in such dispute or controversy. The decision ofthe arbitrator shall be final, conclusive and binding on the parties to the arbitration. Judgmentmay be entered on the arbitrator’s decision in any court having jurisdiction.          (b) The arbitrator shall apply California law to the merits of any dispute or claim, withoutreference to rules of conflict of law. The arbitration proceedings shall be governed by federalarbitration law and by the Rules, without reference to state arbitration law. The parties heretohereby expressly consent to the personal jurisdiction of the state and federal courts located inCalifornia for
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any action or proceeding arising from or relating to this Agreement and/or relating to anyarbitration in which the parties are participants.          (c) The Company and Executive shall each pay one-half of the costs and expenses of sucharbitration, and shall separately pay its counsel fees and expenses.          (d) THE PARTIES HERETO HAVE READ AND UNDERSTAND SECTION 13, WHICH DISCUSSES ARBITRATION. THEPARTIES HERETO UNDERSTAND THAT BY SIGNING THIS AGREEMENT, THEY AGREE, TO THE EXTENT PERMITTED BYLAW, TO SUBMIT ANY FUTURE CLAIMS ARISING OUT OF, RELATING TO, OR IN CONNECTION WITH THIS AGREEMENT,OR THE INTERPRETATION, VALIDITY, CONSTRUCTION, PERFORMANCE, BREACH, OR TERMINATION THEREOF TOBINDING ARBITRATION, AND THAT THIS ARBITRATION CLAUSE CONSTITUTES A WAIVER OF THEIR RIGHT TO A JURYTRIAL AND RELATES TO THE RESOLUTION OF ALL DISPUTES RELATING TO ALL ASPECTS OF THEEMPLOYER/EMPLOYEE RELATIONSHIP, INCLUDING BUT NOT LIMITED TO, THE FOLLOWING CLAIMS:                  (i) ANY AND ALL CLAIMS FOR WRONGFUL DISCHARGE OF EMPLOYMENT; BREACH OF CONTRACT, BOTH EXPRESSAND IMPLIED; BREACH OF THE COVENANT OF GOOD FAITH AND FAIR DEALING, BOTH EXPRESS AND IMPLIED;NEGLIGENT OR INTENTIONAL INFLICTION OF EMOTIONAL DISTRESS; NEGLIGENT OR INTENTIONALMISREPRESENTATION; NEGLIGENT OR INTENTIONAL INTERFERENCE WITH CONTRACT OR PROSPECTIVE ECONOMICADVANTAGE; AND DEFAMATION.                  (ii) ANY AND ALL CLAIMS FOR VIOLATION OF ANY FEDERAL STATE OR MUNICIPAL STATUTE, INCLUDING,BUT NOT LIMITED TO, TITLE VII OF THE CIVIL RIGHTS ACT OF 1964, THE CIVIL RIGHTS ACT OF 1991, THEAGE DISCRIMINATION IN EMPLOYMENT ACT OF 1967, THE AMERICANS WITH DISABILITIES ACT OF 1990, THE FAIRLABOR STANDARDS ACT, THE CALIFORNIA FAIR EMPLOYMENT AND HOUSING ACT, AND LABOR CODE SECTION 201, *etseq*;                  (iii) ANY AND ALL CLAIMS ARISING OUT OF ANY OTHER LAWS AND REGULATIONS RELATING TO EMPLOYMENTOR EMPLOYMENT DISCRIMINATION.     14. Authority. The Company represents and warrants that the undersigned has theauthority to act on behalf of the Company and to bind the Company and all who may claim through itto the terms and conditions of this Agreement. Executive represents and warrants that he has thecapacity to act on his own behalf and on behalf of all who might claim through his to bind them tothe terms and conditions of this Agreement.     15. No Representations. Each party represents that it has had the opportunity toconsult with an attorney, and has carefully read and understands the scope and effect of theprovisions of this Agreement. Neither party has relied upon any representations or statements madeby the other party hereto which are not specifically set forth in this Agreement.
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     16. Severability. In the event that any provision hereof becomes or is declared by acourt of competent jurisdiction to be illegal, unenforceable or void, this Agreement shall continuein full force and effect without said provision.     17. Entire Agreement. This Agreement along with the previously executed EmployeeProprietary Information and Inventions Agreement and the Executive Severance Agreement representthe entire agreement and understanding between the Company and Executive concerning Executive’semployment transition and eventual separation from the Company, and supersedes, replaces and fullydischarges all obligations under any and all prior agreements and understandings concerningExecutive’s relationship with the Company and his compensation by the Company.     18. No Oral Modification. This Agreement may only be amended in writing signed byExecutive and the Company’s Chief Executive Officer.     19. Effective Date. This Agreement is effective as of the date that this Agreement issigned by last party to execute the agreement.     20. Counterparts. This Agreement may be executed in counterparts, and eachcounterpart shall have the same force and effect as an original and shall constitute an effective,binding agreement on the part of each of the undersigned.     21. Cooperation with the Company. Executive agrees to cooperate fully with theCompany, including but not limited to, responding to requests from the Company’s Chief FinancialOfficer or the Company’s legal counsel in connection with any and all existing or futurelitigation. The Executive also agrees to furnish upon request, information necessary in order toassist Company in meeting Company’s reporting requirements and Executive’s continuing Section 16reporting obligations on a timely manner and as prescribed by the then current SEC and/or NASDAQrules. Executive understands that he remains subject to the SEC and NASDAQ prohibitions oninsider trading even after the Effective Date of this agreement.     In addition, and prior to November 2, 2005, Executive agrees to provide to Company, a writtentransition report which shall include, without limitation, a list of any and all projects on whichExecutive is currently working including status of such projects, key deliverables and items whichwill require additional attention. Such transition report shall also include a list of anymarketing personnel related matters which may require action after the Separation Date — includingany specific information communicated by Executive’s direct reports as part of Executive’stransition meetings with such employees.     22. Voluntary Execution of Agreement. This Agreement is executed voluntarily andwithout any duress or undue influence on the part or behalf of the Parties hereto, with the fullintent of releasing all claims. The Parties acknowledge that:          (a) They have read this Agreement;
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          (b) They have been represented in the preparation, negotiation, and execution of thisAgreement by legal counsel of their own choice or that they have voluntarily declined to seek suchcounsel;          (c) They understand the terms and consequences of this Agreement and of the releases itcontains;          (d) They are fully aware of the legal and binding effect of this Agreement.     IN WITNESS WHEREOF, the Parties have executed this Agreement.      Informatica Corporation