1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 1 TO FORM 10-Q ON FORM 10-Q/A [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED DECEMBER 31, 1996 Commission file number 0-7438 DYNATECH CORPORATION - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Massachusetts 04-2258582 - ---------------------------------------- --------------------------------------- (State or other jurisdiction of (I.R.S. Employer Identification Number) incorporation or organization) 3 New England Executive Park Burlington, Massachusetts 01803-5087 - ---------------------------------------- --------------------------------------- (Address of principal executive offices) (Zip Code) (617) 272-6100 - -------------------------------------------------------------------------------- (Registrant's telephone number, including area code) 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 --- --- APPLICABLE ONLY TO CORPORATE ISSUERS: Indicate the number of shares outstanding of each of the registrant's common stock, as of January 15, 1997: 17,072,653 2 The Registrant hereby amends its Quarterly Report on Form 10-Q for the quarterly period ended December 31, 1996 to properly reflect the number of shares of the Registrant's common stock outstanding on January 15, 1997, as reflected on the cover page to this Amendment No. 1 on Form 10-Q/A. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Amendment No. 1 on Form 10-Q/A to be signed by the undersigned, duly authorized. DYNATECH CORPORATION Date: March 12, 1997 By: /s/ Allan M. Kline ------------------------------------- Allan M. Kline, Chief Financial Officer and Treasurer