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 12, 2001 BIOTRANSPLANT INCORPORATED (Exact name of registrant as specified in its charter) DELAWARE 000-28324 04-3119555 -------------------------------- ----------------------- ------------------- (State or other jurisdiction of (Commission File Number) (IRS Employer incorporation) Identification No.) Building 75, Third Avenue Charlestown Navy Yard Charlestown, MA 02129 --------------------------------- -------------- (Address of principal executive (Zip Code) offices) Registrant's telephone number, including area code: (617) 241-5200 N/A -------------------------------------------------- (Former name or former address, if changed since last report) Item 5. Other Events. On March 12, 2001, BioTransplant Incorporated issued a press release announcing its operating results for the fourth quarter and fiscal year ended December 31, 2000. See the press release attached hereto as Exhibit 99.1. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. (c) Exhibits. See Exhibit Index attached hereto. 2 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: March 12, 2001 BIOTRANSPLANT INCORPORATED By: /s/ Richard V. Capasso ------------------------------------- Richard V. Capasso Vice President, Finance and Treasurer 3 EXHIBIT INDEX EXHIBIT NO. EXHIBIT Exhibit 99.1 Press release dated March 12, 2001 4