SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 15 Certification and Notice of Termination of Registration under Section 12(g) of the Securities Exchange Act of 1934 or Suspension of Duty to File Reports Under Sections 13 and 15(d) of the Securities Exchange Act of 1934 Commission File Number: 1-8002 THERMO ELECTRON CORPORATION ------------------------------------------------------------------------------- (Exact Name of Registrant as Specified in its Charter) 81 WYMAN STREET WALTHAM, MASSACHUSETTS 02454-9046 (781) 622-1000 ------------------------------------------------------------------------------- (Address, including Zip Code, and Telephone Number, including Area Code, of Registrant's Principal Executive Offices) UNITS, EACH CONSISTING OF ONE FRACTIONAL SHARE OF COMMON STOCK, $1.00 PAR VALUE PER SHARE, AND ONE REDEMPTION RIGHT ------------------------------------------------------------------------------- (Title of Each Class of Securities Covered by this Form) COMMON STOCK, $1.00 PAR VALUE PER SHARE ------------------------------------------------------------------------------- (Titles of All Other Classes for Which a Duty to File Reports Under Section 13(a) or 15(d) Remains) Please place an X in the box(es) to designate the appropriate rule provisions relied upon to terminate or suspend the duty to file reports: Rule 12g-4(a)(1)(i) / / Rule 12h-3(b)(1)(i) x Rule 12g-4(a)(1)(ii) / / Rule 12h-3(b)(1)(ii) / / Rule 12g-4(a)(2)(i) / / Rule 12h-3(b)(2)(i) / / Rule 12g-4(a)(2)(ii) / / Rule 12h-3(b)(2)(ii) / / Rule 15d-6 / / Approximate number of holders of record as of the certification or notice date: 4 Pursuant to the requirements of the Securities Exchange Act of 1934, Thermo Electron Corporation has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person. Date: May 2, 2001 By: /s/ Kenneth J. Apicerno ------------------------------- Kenneth J. Apicerno Treasurer