SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-K/A Amendment No. 1 Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended December 31, 1999 Commission File No. 1-3660 Owens Corning One Owens Corning Parkway Toledo, Ohio 43659 Area Code (419) 248-8000 A Delaware Corporation I.R.S. Employer Identification No. 34-4323452 Securities registered pursuant to Section 12(b) of the Act: Title of Each Class Name of Each Exchange on Which Registered Common Stock - $.10 Par Value New York Stock Exchange Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes / X / No / / Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [ ] At February 21, 2000, the aggregate market value of Registrant's $.10 par value common stock (Registrant's voting stock) held by non-affiliates was $850,590,859, assuming for purposes of this computation only that all directors and executive officers are considered affiliates. At February 21, 2000, there were outstanding 55,485,313 shares of Registrant's $.10 par value common stock. Parts of Registrant's definitive 2000 proxy statement filed or to be filed pursuant to Regulation 14A (the "2000 Proxy Statement") are incorporated by reference into Part III of this Form 10-K. Owens Corning's Form 10-K for the year ended December 31, 1999, filed on March 14, 2000, is hereby amended by amending Exhibit 27 thereof to read as set forth below. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. OWENS CORNING Registrant Date: March 20, 2000 /s/ Deyonne F. Epperson ---------------- --------------------------- Deyonne F. Epperson Vice President and Controller