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 11, 2004 AEARO CORPORATION (Exact name of Registrant as specified in charter) Delaware 0-26942 13-3840450 (State or other jurisdiction (Commission file number) (IRS employer of incorporation) identification no.) 5457 West 79th Street, Indianapolis, Indiana 46268 (Address of principal executive offices) (Zip Code) (317) 692-6666 (Registrant's telephone number, including area code) Item 5. Other Events On March 11, 2004, Aearo Corporation issued a press release announcing that Bear Stearns Merchant Banking will acquire Aearo Corporation. Item 7. Financial Statements and Exhibits (c) Exhibit 99.1 Aearo Corporation's Press Release dated March 11, 2004. 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 thereunto duly authorized. Date: March 11, 2004 AEARO CORPORATION By: /s/Jeffrey S. Kulka ---------------------------------- Jeffrey S. Kulka Senior Vice President, Chief Financial Officer, and Treasurer