Weiss & Lurie Announces Lawsuit Against Directors for Backdating Stock Options

The law firm of Weiss & Lurie has filed a derivative lawsuit in Santa Clara Superior Court against certain members of KLA-Tencor Corporation's (Nasdaq:KLAC) Board of Directors, including members of its Compensation and Audit Committees, and certain of its executive officers.

Plaintiff is suing derivatively on behalf of the Company. The Complaint alleges that, in breach of their fiduciary duties, defendants regularly backdated stock options awarded to executive officers. According to the Complaint, defendants' conduct violated the Company's shareholder-approved stock option plans, the Company's corporate governance guidelines, the Company's standards of business conduct, the Company's conflicts of interest policy and industry standards. The action seeks return to the Company of all of the improperly issued backdated stock options, including any proceeds from any options that have been exercised or otherwise monetized, and other relief.

Weiss & Lurie (www.wllawca.com) is currently investigating similar stock grant practices at the following companies:

Company Ticker Symbol

Affiliated Computer Services ACS

Alkermes, Inc. ALKS

Altera ALTR

American Tower AMT

Amkor Technology, Inc. AMKR

Analog Devices, Inc. ADI

Applied Micro Circuits Corp. AMCC

Asyst ASYT

Boston Communications Group Inc. BCGI

Broadcom BRCM

Brocade Communications BRCD

Brooks Automation BRKS

Caremark RX CMX

CNET Networks, Inc. CNET

Delta Petroleum DPTR

F5 Networks, Inc. FFIV

Fresenius FMS

HealthSouth HLSH.PK

Jabil Circuit JBL

Juniper Networks, Inc. JNPR

L3 Communications Holdings LLL

Linear Technology LLTC

M Systems Flash Disk Pioneers Ltd. FLSH

Marvell Technology Group MRVL

Maxim Integrated MXIM

McAfee MFE

Meade Instruments Corp. MEAD

Medarex MEDX

Mercury Interactive MERQ.PK

Michaels Stores MIK

MicroStrategy MSTR

Millennium Pharmaceuticals MLNM

Monster Worldwide MNST

Novellus NVLS

NYFIX NYFX.PK

Openwave Systems Inc. OPWV

Power Integrations POWI

Quest Software QSFT

Rambus RMBS

Renal Care RCI

RSA Security RSAS

SafeNet SFNT

Semtech SMTC

Sepracor SEPR

Stolt-Nielsen SNSA

Sycamore Networks SCMR

Trident Microsystems TRID

Zoran ZRAN

Weiss & Lurie is also investigating claims that certain companies have granted options to executives immediately prior to announcing positive news, thereby rendering their options "in the money" without making proper disclosures of the real value of the options. The SEC maintains that where grants are made available prior to a positive announcement, a failure to discuss timing and value of the grant in SEC filings is a disclosure violation.

Weiss & Lurie, with offices in New York and Los Angeles, has extensive experience in complex litigation, particularly securities and consumer class actions, and has been appointed lead counsel in numerous class and derivative litigations.

If you are a purchaser or holder of the stock of KLA-Tencor or any of the other companies currently being investigated, please contact:

Jordan L. Lurie, Esq.

Leigh A. Parker , Esq.

Weiss & Lurie -- Los Angeles

Telephone: (800) 437-7918

email: info@wllawca.com

internet: www.wllawca.com

CONTACT: Weiss & Lurie -- Los Angeles

(800) 437-7918

www.wllawca.com

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