UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 ---------------------------------------------------- FORM 11-K (mark one) [X] Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 for the Fiscal Year Ended December 31, 2003 [ ] Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 Commission File Number 1-8002 THERMO ELECTRON CORPORATION CHOICE PLAN A. Full title of the plan and address of the plan, if different from that of the issuer named below: Thermo Electron Corporation Choice Plan B. Name of issuer of the securities held pursuant to the plan and the address of the principal executive office: Thermo Electron Corporation 81 Wyman Street P.O. Box 9046 Waltham, Massachusetts 02454-9046 Thermo Electron Corporation Choice Plan December 31, 2003 and 2002 -------------------------------------------------------------------------------- Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed by the undersigned hereunto duly authorized. THERMO ELECTRON CORPORATION CHOICE PLAN By: Thermo Electron Corporation, Pension Committee By: /s/ Theo Melas-Kyriazi ----------------------------------------------- Theo Melas-Kyriazi Chief Financial Officer and Member of the Plan Administrator Date: June 25, 2004 Thermo Electron Corporation Choice Plan Financial Statements and Supplementary Information December 31, 2003 and 2002 Thermo Electron Corporation Choice Plan Index December 31, 2003 and 2002 --------------------------------------------------------------------------------------------------------------------------------- Page(s) Report of Independent Registered Public Accounting Firm............................................................ 1 Financial Statements Statements of Net Assets Available for Benefits..................................................................... 2 Statement of Changes in Net Assets Available for Benefits........................................................... 3 Notes to Financial Statements....................................................................................... 4-7 Supplementary Schedule* Schedule H, line 4i - Schedule of Assets Held (at End of Year)...................................................... 8 * Other supplemental schedules required by Section 2520-103.10 of the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable. Thermo Electron Corporation Choice Plan Report of Independent Registered Public Accounting Firm -------------------------------------------------------------------------------- To the Participants, Administrator and Pension Committee of Thermo Electron Corporation Choice Plan In our opinion, the accompanying statements of net assets available for benefits and the related statement of changes in net assets available for benefits present fairly, in all material respects, the net assets available for benefits of Thermo Electron Corporation Choice Plan (the "Plan") at December 31, 2003 and 2002, and the changes in net assets available for benefits for the year ended December 31, 2003 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States) and auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule H, line 4i - schedule of assets held (at end of year) is presented for the purpose of additional analysis and is not a required part of the basic financial statements but is supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This supplemental schedule is the responsibility of the Plan's management. The supplemental schedule has been subjected to the auditing procedures applied in the audit of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole. PricewaterhouseCoopers LLP Boston, Massachusetts June 18, 2004 1 Thermo Electron Corporation Choice Plan Statements of Net Assets Available for Benefits December 31, 2003 and 2002 --------------------------------------------------------------------------------------------------------------------------------- 2003 2002 -------------- -------------- Assets Investments, at fair value $ 427,399,405 $ 345,632,550 Loans to participants 5,636,340 5,976,961 -------------- -------------- 433,035,745 351,609,511 -------------- -------------- Receivables Employer contributions 712,594 546,587 Participant contributions 1,442,413 1,082,122 Other 548 5,616 -------------- -------------- 2,155,555 1,634,325 -------------- -------------- Net assets available for benefits $ 435,191,300 $ 353,243,836 ============== ============== See accompanying notes to financial statements. 2 Thermo Electron Corporation Choice Plan Statement of Changes in Net Assets Available for Benefits For the Year Ended December 31, 2003 --------------------------------------------------------------------------------------------------------------------------------- Addition to net assets attributed to investment income Interest and dividends $ 8,423,928 Net appreciation in fair value of investments 72,025,833 -------------- Total investment income 80,449,761 -------------- Contributions Employer 11,703,913 Participant 24,510,500 -------------- Total contributions 36,214,413 -------------- Deductions from net assets attributed to Benefits paid to participants 34,686,849 Administrative expenses 29,861 -------------- Total deductions 34,716,710 Net increase in net assets available for benefits 81,947,464 Net assets available for benefits Beginning of year 353,243,836 -------------- End of year $ 435,191,300 ============== See accompanying notes to financial statements. 3 Thermo Electron Corporation Choice Plan Notes to Financial Statements December 31, 2003 and 2002 -------------------------------------------------------------------------------- 1. Plan Description The following description of the Thermo Electron Corporation Choice Plan (the Plan) provides only general information. Participants should refer to the Plan agreement for a more complete description of the Plan's provisions. General The Plan is a defined contribution plan. The Plan covers eligible full-time and part-time employees of Thermo Electron Corporation and subsidiaries (the Company) who have completed two months of service. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA). On May 31, 2002, the Thermo Neslab, Inc. 401(k) Plan was merged into the Plan. The balance of $14,627,249 for the net assets available for benefits as of May 31, 2002 was transferred into the Plan. On July 31, 2002, the Thermo Finnigan LLC 401(k) Plan was merged into the Plan. The balance of $47,453,179 for the net assets available for benefits as of July 31, 2002 was transferred into the Plan. As of December 31, 2002, the participant accounts and the net assets of the Spectra-Physics 401(k) Plan were transferred into the Plan, totaling $36,004,050. The financial statements reflect the merger as if it occurred at the close of business December 31, 2002. The participants of Spectra-Physics of the 401(k) plan were allowed to contribute effective January 1, 2003. Contributions Each year participants may contribute up to 50% of pre-tax annual compensation or $12,000, as defined in the Plan. Participants may also contribute amounts representing distributions from other qualified defined benefit or defined contribution plans. Beginning on the first day of the calendar month following completion of one year of service, the Company makes non-discretionary matching contributions equal to 200% of the first 2% and 25% of the next 2% of base compensation that a participant contributes to the Plan. Participants direct the investment of their contributions and the Company match into various investment options offered by the Plan. The Plan currently offers the Company's common stock fund and sixteen investment funds as investment options for participants. Contributions are subject to certain limitations. Participant Accounts Each participant's account is credited with the participant's contributions and allocations of the Company's contribution and plan earnings, and charged with an allocation of administrative expenses, if any. Allocations are based on participant earnings or account balances, as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Vesting Participants are immediately vested in their voluntary contributions plus actual earnings thereon. Vesting in the Company matching contributions plus actual earnings thereon is based on years of service. A participant is 100% vested after three years of credited service. A participant is automatically 100% vested in all contributions upon the attainment of age 65, upon becoming permanently disabled, or upon death while still an active participant. 4 Thermo Electron Corporation Choice Plan Notes to Financial Statements December 31, 2003 and 2002 -------------------------------------------------------------------------------- Participant Loans Participants may only borrow from their employee portion of fund accounts a minimum of $1,000 up to a maximum equal to $50,000 or 50% of the vested account balance, whichever is less. The term of the loan is generally five years except when use of the proceeds is for the purchase of a primary residence, for which the term can be up to 30 years. The loans are secured by the balance in the participant's account and bear interest at a rate commensurate with local prevailing rates as determined by the plan administrator. The interest rates on plan loans range from 5% to 11% at December 31, 2003. Principal and interest are repaid through payroll deductions. Benefit Payments and Plan Withdrawals On termination of service due to death, disability or retirement, a participant (or beneficiary) may elect to receive either a lump-sum amount equal to the value of the participant's vested interest in his or her account or periodic installments. For termination of service due to other reasons, a participant may receive the value of the vested interest in his or her account as a lump-sum distribution. Withdrawals may be made under certain other circumstances in accordance with the Plan document. Forfeitures Upon a participant's break in service, as defined, the nonvested portion of the participant's account is forfeited and is used to reduce the Company's future funding requirements. If a participant who has terminated employment is rehired by the Company before the greater of a five-year break in service or the number of the participant's years of service prior to the participant's break in service, the participant shall be reinstated in such forfeited amount. In 2003, Company contributions were reduced by $205,477 from forfeited nonvested accounts. Transfer In/Out In connection with certain reorganization activities at the Company, the assets of certain other plans sponsored by subsidiaries of the Company have been transferred into the Plan in connection with the merger of those plans. Additionally, the reorganization has involved a number of business dispositions. As a result, the plan assets in the accounts of the affected employees have sometimes been transferred to plans sponsored by the acquirers of these businesses disposed. 2. Summary of Significant Accounting Policies Use of Estimates The Plan's financial statements are prepared on the accrual basis of accounting. The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and changes therein. Actual results could differ from those estimates. Certain prior year balances have been reclassified to conform with the current year financial statement presentation. Investment Valuation Investments are stated at fair value as determined by Fidelity Management Trust Company, a trust company that is the trustee and custodian of the Plan's investment assets. Common shares are valued based on quoted market prices. Registered investment companies and bank collective investment funds are valued based on net asset value. Participant loans are valued at cost plus accrued interest, which approximates fair value. Payment of Benefits Benefits are recorded when paid. 5 Thermo Electron Corporation Choice Plan Notes to Financial Statements December 31, 2003 and 2002 -------------------------------------------------------------------------------- Risks and Uncertainties The Plan invests in a combination of investment securities which are exposed to various risks, such as interest rate, market and credit. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in risks in the near term would materially affect participants' account balances and the amounts reported in the statement of net assets available for benefits and the statement of changes in net assets available for benefits. 3. Tax Status The Plan has received a favorable determination letter dated September 18, 2003 from the Internal Revenue Service. The Plan has been amended since receiving the determination letter; however, the Plan administrator, management and the Plan's tax counsel believe that the Plan has been designed and operated in compliance with the applicable requirements of the Internal Revenue Code. 4. Investments Investments that represent five percent or more of the Plan's net assets are as follows: December 31, ------------------------------- 2003 2002 ------------- ------------- Dodge and Cox Stock Fund $ 68,531,423 $ - Managed Income Portfolio II: Class II 80,699,253 82,028,407 Fidelity Equity-Income II Fund - 46,954,580 Fidelity Blue Chip Growth Fund 53,078,631 43,974,327 Fidelity Balanced Fund 53,083,335 42,617,193 Fidelity Magellan Fund 30,880,451 24,014,123 Fidelity Growth Company Fund 31,880,444 20,369,301 Fidelity Diversified International Fund 25,597,955 - U.S. Equity Index Commingled Pool 23,610,546 18,548,584 PIMCO Total Return Fund: Class ADM - 17,699,913 Purchases and sales of investments are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on ex-dividend date. 5. Related Party Transactions Certain Plan investments are managed by the Fidelity Management Trust Company, which is a trustee as defined by the Plan. Therefore, these transactions qualify as party-in-interest transactions. There were no fees paid by the Plan for investment management services for the period ended December 31, 2003. These transactions, as well as participant loans, qualify as party in interest transactions. The Plan invests in a unitized stock fund, Thermo Electron Stock Fund (the Fund), which is comprised of a short-term investment fund component and shares of common stock of the Company. The unit values of the Fund are recorded and maintained by the trustee. During the year ended December 31, 2003, the Plan purchased units of the Fund in the approximate amount of $960,367, sold units of the Fund in the approximate amount of $2,033,948, and had net appreciation and dividends on the Fund in the approximate amount of $2,731,447. The total value of the Plan's interest in the Fund was approximately $14,081,420 and $12,423,554 at December 31, 2003 and 2002, respectively. 6 Thermo Electron Corporation Choice Plan Notes to Financial Statements December 31, 2003 and 2002 -------------------------------------------------------------------------------- 6. Plan Termination Although it has not expressed an intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of Plan termination, participants would become 100% vested in their employer contributions. 7. Administrative Expenses The Company and the Plan pay for administrative expenses associated with management of and professional services for the Plan. Administrative fees for hardship withdrawals and loan transactions are paid by the participants. The administrative expenses included in the statement of changes in net assets available for benefits represent expenses paid by the participants. During the year, the Plan received a settlement of approximately $147,000 from the prior recordkeeper. The proceeds from the settlement were utilized to offset administrative expenses. 8. Subsequent Event The Company recently announced that it has entered into a definitive agreement for the sale of its optical technologies segment, Spectra-Physics, to Newport Corporation. As a result of this disposition, the active participation in the Plan of employees in this segment will cease as of the sale date. 7 Thermo Electron Corporation Choice Plan Schedule H, Line 4i Schedule of Assets Held (at End of Year) December 31, 2003 Supplemental Schedule --------------------------------------------------------------------------------------------------------------------------------- Description of Investments Units/Shares Current Value Mutual Funds Dodge and Cox Stock Fund 602,315 $ 68,531,423 Fidelity Balanced Fund (1) 3,169,154 53,083,335 Fidelity Blue Chip Growth Fund (1) 1,339,355 53,078,631 Fidelity Diversified International Fund (1) 1,061,275 25,597,955 Fidelity Growth Company Fund (1) 636,717 31,880,444 Fidelity Magellan Fund (1) 315,945 30,880,451 Freedom 2000 Fund (1) 52,957 623,829 Freedom 2010 Fund (1) 122,622 1,596,544 Freedom 2020 Fund (1) 247,734 3,225,503 Freedom 2030 Fund (1) 169,773 2,198,563 Freedom 2040 Fund (1) 67,289 508,701 Freedom Income Fund (1) 73,671 817,014 PIMCO Total Return Fund: Class ADM 1,781,095 19,075,530 T. Rowe Price Small-Cap Stock Fund, Inc. 640,109 17,910,263 Fidelity Group Trust for Employee Benefit Plans Managed Income Portfolio II: Class II (1) 80,699,253 80,699,253 U.S. Equity Index Commingled Pool (1) 699,157 23,610,546 Thermo Electron Stock Fund (1) 898,069 14,081,420 Loans to participants (for a term not exceeding 30 years at interest rates ranging from 5% to 11%) (1) 5,636,340 --------------- $ 433,035,745 =============== (1) All investments are a party in interest to the Plan. 8 Thermo Electron Corporation Choice Plan Exhibit Index December 31, 2003 and 2002 --------------------------------------------------------------------------------------------------------------------------------- Exhibit Number Description of Exhibit --------------------------------------------------------------------------------------------------------------------------------- 23.1 Consent of PricewaterhouseCoopers LLP. 32.1 Certification of the Vice President of Human Resources Pursuant to 18 U.S.C. Section 1350. 32.2 Certification of the Chief Financial Officer Pursuant to 18 U.S.C. Section 1350. 9