Securiities和Exchange委员会华盛顿州，D.C.20549根据1934年证券交易所第13亿号附表13G修正案1号1号：KLA Instruments Corp _________________________________________________________________________________________________________________身份证号码。报告人员审议美国22-1211670 2的议员22-1211670 2）：（a）n / abeplay官网ued（b）n / a 3）秒仅使用：4）组织地点：互保险公司组织新泽西州的股票股权股份股份：5）唯一投票权：452,600见展出A 6）共同投票权：4,288,487见展出A 7）唯一分数幂：452,600见展览A 8）分享积分功率：4,675,887见展览A 9）综合金额有利的金额：5,128,487见展出A 10）行（9）总金额不包括股份：n / a 11）股票的股票百分比（9）：10.1se展出A 12）报告人员类型：BD，IC，IA项1（a）。发行人姓名：KLA Instruments Corp项目1（b）。发行人的执行办公室地址：160 RIO ROBLES SAN JOSE，CA 95161第2项（A）。人员申请名称：美国审慎保险公司第2（b）项。beplay官网ued首席运营办公室的地址：纽瓦克，新泽西州07102-3777项目2（c）。 CITIZENSHIP: A mutual insurance company organized under the laws of the State of New Jersey ITEM 2(d). TITLE OF CLASS SECURITIES: Common Stock ITEM 2(e). CUSIP NUMBER: 482480100 ITEM 3. The Person filing this statement is an Insurance Company as defined in Section 3(a)(19) of the Securities Exchange Act of 1934, a Broker-Dealer registered under Section 15 of that Act and an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. ITEM 4. OWNERSHIP: (a) Number of Shares Benefically Owned: 5,128,487 See Exhibit A (b) Percent of Class: 10.1 See Exhibit A Number (c) Powers Of Shares --------------------- --------- Sole power to vote or 452,600 See Exhibit A to direct the vote Shared power to vote or 4,288,487 See Exhibit A to direct the vote Sole power to dispose or 452,600 See Exhibit A to direct disposition Shared power to dispose 4,675,887 See Exhibit A or to direct disposition ITEM 5. OWNERSHIP OF 5% OR LESS OF A CLASS: Not Applicable ITEM 6. OWNERSHIP OF MORE THAN 5% ON BEHALF OF ANOTHER PERSON: See Exhibit A ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE ULTIMATE PARENT COMPANY: Not Applicable ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP: Not Applicable ITEM 9. NOTICE OF DISSOLUTION OF GROUP: Not Applicable ITEM 10. CERTIFICATION: By signing below, The Prudential Insurance Company of America certifies that, to the best of its knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were note acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. The filing of this statement should not be construed as an admission that Prudential is, for purposes of Sections 13(d) or 13(g) of the Securities Exchange Act of 1934, the beneficial owner of such shares. SIGNATURE After reasonable inquiry and to the best of its knowledge and belief, The Prudential Insurance Company of America certifies that the information set forth in this statement is true, complete and correct. THE PRUDENTIAL INSURANCE COMPANY OF AMERICA By: Derek D. Burke Director, Securities Law Compliance Date: June 10, 1996 As of: May 31, 1996 Exhibit A --------- ITEM 6. OWNERSHIP OF MORE THAN 5% ON BEHALF OF ANOTHER PERSON: ------------------------------------------------------ The Prudential Insurance Company of America ("Prudential") may have direct or indirect voting and/or investment discretion over 5,128,487 shares of the Issuer's common stock which are held for the benefit of its clients by its separate accounts, externally managed accounts, registered investment companies, subsidiaries and/or other affiliates. Prudential is reporting the combined holdings of these entities for the purpose of administrative convenience. These shares were acquired in the ordinary course of business, and not with the purpose or effect of changing or influencing control of the Issuer. The filing of this statement should not be construed as an admission that Prudential is, for the purposes of Sections 13 or 16 of the Securities Exchange Act of 1934, the beneficial owner of these shares.