UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________ FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 15, 2000 DYNEGY HOLDINGS INC. (Exact name of registrant as specified in its charter) DELAWARE 1-029311 94-3248415 (State of Incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 1000 LOUISIANA, SUITE 5800 HOUSTON, TEXAS 77002 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (713) 507-6400 ITEM 5. OTHER EVENTS On March 15, 2000, Dynegy Holdings Inc., a Delaware corporation (the "Company"), entered into an Underwriting Agreement, attached as Exhibit 1.1 hereto, with the Underwriters named therein with respect to the issue and sale by the Company of $300,000,000 aggregate principal amount of 8.125% Senior Notes due March 15, 2005 (the "Senior Notes") in an underwritten public offering. The Senior Notes were registered under the Securities Act of 1933, as amended, pursuant to the Company's shelf registration statements on Form S-3 (File No. 333-60253 and File No. 333-89021). The closing respecting the Senior Notes occurred on March 20, 2000. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS (c) Exhibit No. Description of Exhibit - ----------- ---------------------- 1.1 Underwriting Agreement dated March 15, 2000, among the Company and the Underwriters named therein relating to the sale of Senior Notes. 4.1 Form of 8.125% Senior Note due March 15, 2005. 2 SIGNATURE 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. Dated: March 20, 2000 DYNEGY HOLDINGS INC. By: /s/ Lisa Q. Metts --------------------------------- Name: Lisa Q. Metts Title: Vice President 3 EXHIBIT INDEX EXHIBIT NUMBER DESCRIPTION - -------- ----------- 1.1 Underwriting Agreement dated March 15, 2000, among the Company and the Underwriters named therein relating to the sale of Senior Notes. 4.1 Form of 8.125% Senior Note due March 15, 2005. 4