Bad Ragaz, Switzerland, May 26, 2014 - INFICON Holding AG (SIX Swiss Exchange: IFCN), a leading manufacturer of vacuum instrumentation and process control software for the semiconductor and related industries and other industrial applications, announced today that according to a notification received on May 23, 2014 from BlackRock Inc.nd Street, New York NY 10022, USA, (Contact: Duncan Murray, BlackRock Investment Management (UK) Limited, Throgmorton Avenue, London EC2N 2DL, UK, Tel +44 20 7743 3334) this company holds after a sale of shares on May 21, 2014 with 114,710 registered shares and 5 CFD sale positions a total of 4.98%  of the voting rights in INFICON Holding AG.

The voting rights are held indirectly via BlackRock Delaware Holdings Inc., 400 Howard Street, San Francisco, CA 94105, U.S.A.; BlackRock Financial Management, Inc.nd Street, New York, NY 10055, U.S.A.; BlackRock Group Limited, 12 Throgmorton Avenue, London, EC2N 2DL, U.K.; BlackRock Advisors Holdings, Inc.nd Street, New York, NY 10055, U.S.A.; BlackRock Holdco 2, Inc., 1209 Orange Street, Wilmington, DE 19801, U.S.A.; BlackRock Holdco 4, LLC, 1209 Orange Street, Wilmington, DE 19801, U.S.A.; BlackRock Holdco 6, LLC, 1209 Orange Street, Wilmington, DE 19801, U.S.A.; BlackRock, Inc.nd Street, New York, NY 10055, U.S.A.; BlackRock International Holdings, Inc.nd Street, New York, NY 10055, U.S.A.; BR Jersey International Holdings L.P., One Waverley Place, 4th Floor, St. Helier, JE1 OBR, Jersey; BlackRock Luxembourg Holdco S.à r.I., 6D, Route de Trèves, Senningerberg, L-2633, Luxembourg, as well as directly via BlackRock Advisors (UK) Limited, 12 Throgmorton Avenue, London, EC2N 2DL, U.K.; BlackRock Fund Advisors, 400 Howard Street, San Francisco, CA 94105, U.S.A.; BlackRock Institutional Trust Company, National Association, 400 Howard Street, San Francisco, CA 94105, U.S.A.; BlackRock International Limited, 12 Throgmorton Avenue, London, EC2N 2DL, U.K.; BlackRock Investment Management (UK) Limited, 12 Throgmorton Avenue, London, EC2N 2DL, U.K.; BlackRock (Luxembourg) S.A., 6D, Route de Trèves, Senningerberg, L-2633, Luxembourg.

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