EXHIBIT 10.17.1 ================================================================================ SEI Investments Company ___________________________________ First Amendment Dated as of December 15, 1998 to Note Purchase Agreement Dated as of February 24, 1997 ___________________________________ Re: $20,000,000 7.20% Senior Notes, Series A, due February 24, 2007 and $15,000,000 7.27% Senior Notes, Series B, due February 24, 2012 ================================================================================ 123 SEI INVESTMENTS COMPANY OAKS, PENNSYLVANIA 19456 FIRST AMENDMENT Dated as of December 15, 1998 To NOTE PURCHASE AGREEMENT Dated as of February 24, 1997 Re: $20,000,000 7.20% Senior Notes, Series A, due February 24, 2007 and $15,000,000 7.27% Senior Notes, Series B, due February 24, 2012 To the Noteholders Which are Signatories to this Amendment Reference is made to the Note Purchase Agreement, dated as of February 24, 1997 (the "Note Agreement"), among the undersigned, SEI Investments Company, a Pennsylvania corporation (the "Company"), and each of the Purchasers named on Schedule A thereto (the "Purchasers"). Unless otherwise herein defined or the context hereof shall otherwise require, capitalized terms used in this First Amendment (the or this "First Amendment"), shall have the respective meanings specified in the Note Agreement. RECITALS: A. The Company and each of the Purchasers have heretofore entered into the Note Agreement. The Company has heretofore issued $20,000,000 aggregate principal amount of its 7.20% Senior Notes, Series A, due February 24, 2007 (the "Series A Notes") and $15,000,000 aggregate principal amount of its 7.27% Senior Notes, Series B, due February 24, 2012 (the "Series B Notes", the Series A Notes and Series B Notes are hereinafter collectively referred to as the "Notes"). On the date hereof, $19,000,000 aggregate principal amount of the Series A Notes and $14,000,000 aggregate principal amount of the Series B Notes are outstanding. B. The Company and the holders of the Notes (the "Noteholders") now desire to amend the Note Agreement in the respects, but only in the respects, hereinafter set forth. C. All requirements of law have been fully complied with and all other acts and things necessary to make this First Amendment a valid, legal and binding instrument according to its terms for the purposes herein expressed have been done or performed. Now, therefore, the Company requests the following amendments to the Note Agreement, and, based on the representations and warranties of the Company herein set forth and subject to the terms and conditions herein provided, the Noteholders are willing to enter into such amendments. 124 Section 1. Amendments. Section 10.3 of the Note Agreement shall be and is hereby amended in its entirety to read as follows: "Section 10.3. Consolidated Net Worth (a) The Company will not, at any time on or before September 30, 1998, permit Consolidated Net Worth to be less than the sum of (i) $30,000,000, plus (ii) an aggregate amount equal to 30% of its Consolidated Net Income (but, in each case, only if a positive number) for each completed fiscal year beginning with the fiscal year ending on December 31, 1997, plus (iii) 30% of its Consolidated Net Income (but only if a positive number) for the period beginning on the first day of the then current fiscal year and ending at the end of the then most recently completed fiscal quarter. (b) The Company will not, at any time after September 30, 1998 and on or before December 31, 1999, permit Consolidated Net Worth to be less than the sum of (i) $43,000,000, plus (ii) 25% of its Consolidated Net Income (but only if a positive number) for the period beginning on the first day of the fiscal year ending on December 31, 1999 and ending at the end of the then most recently completed fiscal quarter. (c) The Company will not, at any time after December 31, 1999, permit Consolidated Net Worth to be less than the sum of (i) $43,000,000, plus (ii) an amount equal to 25% of its Consolidated Net Income (but only if a positive number) for the fiscal year ending on December 31, 1999, plus (iii) an aggregate amount equal to 50% of its Consolidated Net Income (but, in each case, only if a positive number) for each completed fiscal year beginning with the fiscal year ending on December 31, 2000, plus (iv) 50% of its Consolidated Net Income (but only if a positive number) for the period beginning on the first day of the then current fiscal year and ending at the end of the then most recently completed fiscal quarter." Section 2. Representations and Warranties of the Company. To induce the Noteholders to execute and deliver this First Amendment (which representations shall survive the execution and delivery of this First Amendment), the Company represents and warrants to the Noteholders that: (a) this First Amendment has been duly authorized, executed and delivered by it and this First Amendment constitutes the legal, valid and binding obligation, contract and agreement of the Company enforceable against it in accordance with its terms, except as enforcement may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws or equitable principles relating to or limiting creditors' rights generally; (b) the Note Agreement, as amended by this First Amendment, constitutes the legal, valid and binding obligation, contract and agreement of the Company enforceable against it in accordance with its terms, except as enforcement may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws or equitable principles relating to or limiting creditors' rights generally; 125 (c) the execution, delivery and performance by the Company of this First Amendment (i) has been duly authorized by all requisite corporate action, (ii) does not require the consent or approval of any governmental or regulatory body or agency, and (iii) will not (A) violate (1) any provision of law, statute, rule or regulation or its Articles of Incorporation or bylaws, (2) any order of any court or any rule, regulation or order of any other agency or government binding upon it, or (3) any provision of any material indenture, agreement or other instrument to which it is a party or by which its properties or assets are or may be bound, or (B) result in a breach or constitute (alone or with due notice or lapse of time or both) a default under any indenture, agreement or other instrument referred to in clause (iii)(A)(3) of this (S)2.1(C); (d) as of the date hereof and after giving effect to this First Amendment, no Default or Event of Default has occurred which is continuing; and (e) all the representations and warranties contained in Section 5 of the Note Agreement are true and correct in all material respects with the same force and effect as if made by the Company on and as of the date hereof. Section 3. Conditions to Effectiveness of This First Amendment. This First Amendment shall not become effective until, and shall become effective when, each and every one of the following conditions shall have been satisfied: (a) executed counterparts of this First Amendment, duly executed by the Company and the holders of at least 51% of the outstanding principal amount of the Notes, shall have been delivered to the Noteholders; (b) the representations and warranties of the Company set forth in (S)2 hereof are true and correct on and with respect to the date hereof; (c) the Company shall have paid all costs and expenses incurred by the Noteholders in connection with the consummation of the transactions contemplated by this First Amendment, including, without limitation, the fees and expenses of Chapman and Cutler, special counsel to the Noteholders, which are reflected in statements of such counsel rendered on or prior to the effective date of this First Amendment; and (d) in consideration of the agreement of the Noteholders to amend the Note Agreement as set forth in (S)1, each Noteholder shall have received a fee equal to 0.35% of the unpaid principal amount of the Notes held by such Noteholder, whether or not such Noteholder shall have executed and delivered a counterpart to this First Amendment. Upon receipt of all of the foregoing, this First Amendment shall become effective. Section 4. Miscellaneous. Section 4.1. Construction. This First Amendment shall be construed in connection with and as part of the Note Agreement, and except as modified and expressly amended by this First Amendment, all terms, conditions and covenants contained in the Note Agreement and the Notes are hereby ratified and shall be and remain in full force and effect. 126 Section 4.2. Notices. Any and all notices, requests, certificates and other instruments executed and delivered after the execution and delivery of this First Amendment may refer to the Note Agreement without making specific reference to this First Amendment but nevertheless all such references shall include this First Amendment unless the context otherwise requires. Section 4.3. Captions. The descriptive headings of the various Sections or parts of this First Amendment are for convenience only and shall not affect the meaning or construction of any of the provisions hereof. Section 4.4. Governing Law. This First Amendment shall be construed and enforced in accordance with, and the rights of the parties shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would require the application of the laws of a jurisdiction other than such State. Section 4.5. Counterparts. The execution hereof by you shall constitute a contract between us for the uses and purposes hereinabove set forth, and this First Amendment may be executed in any number of counterparts, each executed counterpart constituting an original, but all together only one agreement. 127 In Witness Whereof, the Company and the Noteholders have caused this First Amendment to be executed, all as of the day and the year first above-written. SEI Investments Company By: /s/ Todd Cipperman ------------------------------------- Its: Vice President ------------------------------------- Accepted and Agreed to: Connecticut General Life Insurance Company By: CIGNA Investments, Inc. By: /s/ James R. Kuzemchak ---------------------------------------- Its: Managing Director ---------------------------------------- Connecticut General Life Insurance Company, on behalf of one or more separate accounts By: CIGNA Investments, Inc. By: /s/ James R. Kuzemchak ---------------------------------------- Its: Managing Director ---------------------------------------- Insurance Company of North America By: CIGNA Investments, Inc. By: /s/ James R. Kuzemchak ---------------------------------------- Its: Managing Director ---------------------------------------- Pacific Employers Insurance Company By: CIGNA Investments, Inc. By: /s/ James R. Kuzemchak ---------------------------------------- Its: Managing Director ---------------------------------------- 128 The Lincoln National Life Insurance Company By: Lincoln Investment Management, Inc., Its Attorney-In-Fact By: /s/ Timothy J. Powell ---------------------------------------- Its: Vice President ---------------------------------------- Nationwide Life Insurance Company By: /s/ Mark W. Poeppelman ---------------------------------------- Its: Authorized Signatory ---------------------------------------- 129