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): February 11, 2000 SYCAMORE NETWORKS, INC. (Exact name of registrant as specified in its charter) Delaware 000-27273 04-3410558 -------------- ------------------------ ------------------- (State of (Commission File Number) (IRS Employer Incorporation) Identification No.) 10 Elizabeth Drive, Chelmsford, MA 01824 --------------------------------------------------- (Address of principal executive offices) (Zip Code) (978) 250-2900 ---------------------------------------------------- (Registrant's telephone number, including area code) N/A ------------------------------------------------------------- (Former name or former address, if changed since last report) ITEM 5. OTHER EVENTS. Sycamore Networks, Inc. (the "Company") effected a three-for-one stock split of its common stock, $0.001 par value per share ("Common Stock") in the form of a stock dividend paid on February 11, 2000 to those holders of record of the Company's Common Stock at the close of business on February 4, 2000. A copy of the press release issued by the Company announcing the three-for-one stock split is attached hereto as Exhibit 99.1 and is incorporated herein by reference. ITEM 7. EXHIBITS. EXHIBIT NUMBER DESCRIPTION - ------- ----------- 99.1 Press Release dated January 26, 2000 issued by Sycamore Networks, Inc. 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. Date: February 14, 2000 SYCAMORE NETWORKS, INC. By: __________________________________ Frances M. Jewels Chief Financial Officer, Vice President, Finance and Administration and Secretary EXHIBIT INDEX EXHIBIT NUMBER DESCRIPTION - ------- ----------- 99.1 Press Release dated January 26, 2000 issued by Sycamore Networks, Inc.