证券交易委员会华盛顿，D.c. 20549 ---------------表格10-k / A（标记一）修正案没有。1至/ X /每年报告根据“公约”截至1994年6月30日止1994年6月30日止1994年6月30日或/ /转型报告的第13或15（d）第13或15（d）条。1934年的行为[无需费用]从-------------------------------委托文件编号0-9992 KLA Instruments Corporation（其宪章中规定的注册人的确切姓名）特拉华州04-2564110（（IRS雇主注册或组织）识别号码的国家或其他管辖权。主要行政办公室）（邮政编码）注册人的电话号码，包括区号：（408）证券根据该法案第12（b）条注册：无证券根据该法案第12（G）条注册：常见库存，$ .001 par价值普通股票购买权通过校验标记表示注册人（1）是否提交了第13条所需的所有报告或者15（d）1934年的证券交换法案于前述12个月内（或缩短注册人需要提交此类报告的时间），并且（2）一直符合过去90天内的申报要求。。Yes /X/ No ---- ---- Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. / / The aggregate market value of the voting stock held by non-affiliates of the Registrant based upon the average bid and asked prices of the registrant's stock, as of August 31, 1994, was $994,164,000. Shares of common stock held by each officer and director and by each person or group who owns 5% or more of the outstanding common stock have been excluded in that such persons or groups may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes. The registrant had 22,974,230 shares of Common Stock outstanding as of August 31, 1994. THIS AMENDMENT 10-K/A CONTAINS 4 PAGES. FORM 10-K/A AMENDMENT NO. 1 The undersigned registrant hereby amends Part IV, Item 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K, by filing herewith Exhibit 27, 1994 Year End Financial Data Schedule. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this amendment to be signed on its behalf by the undersigned, thereunto duly authorized. KLA INSTRUMENTS CORPORATION By: /s/ William Turner ----------------------------------- William Turner Vice President/Corporate Controller Date: December 15, 1994 3