Melexis N.V. — Major Shareholding Notification 2011

Mar 2, 2011

Disclosure of Major Shareholding

Regulated information published in view of the transparency directive.

Ieper, Belgium – March 2nd, 2011 at 18.00 hrs CET

According to Belgian law, a shareholder whose direct or indirect stake reaches, exceeds or drops below a threshold of 5% or any multiple of 5% has to disclose this. Melexis NV has not provided for any threshold provision in its articles of association, by which the legal threshold of 5% and all of its multiples is applicable.

In accordance with the stipulations of Title II of the Law of May 2nd, 2007 and the Royal Decree of February 14th 2008, Xtrion NV has notified Melexis NV that on February 23rd 2011 the total participation of its affiliates has passed the threshold of 55% of the shares issued by Melexis NV.

The total participation includes the share participation held by Melexis Tessenderlo NV and Melexis NV, which jointly passed the threshold of 5%.

Number of shares held by Xtrion NV: 21.644.399 Number of corresponding votes held by Xtrion NV: 21.644.399 Representing 50,05 % of the total votes.

Number of shares held by Melexis NV: 1.661.726 Number of corresponding votes held by Melexis NV: 1.661.726 Representing 3,84 % of the total votes.

Number of shares held by Melexis Tessenderlo NV: 504.471 Number of corresponding votes held by Melexis Tessenderlo NV: 504.471 Representing 1,17 % of the total votes.

The participation declaration can be accessed on: http://www.melexis.com/html/pdf/Notificiation-Xtrion-Mar2011.pdf

For further information, please contact: Karen van Griensven CFO Melexis Tessenderlo NV Phone: +32 13 67 07 79 Fax: +32 13 67 21 34 Email: investor@melexis.com

About Melexis

Melexis Microelectronic Integrated Systems N.V. (Euronext Brussels:MELE) imagines, creates and delivers innovative mixed signal integrated circuits. Melexis ICs are driving green solutions that enable our customers to bring more energy efficient automotive systems to market. Melexis product portfolio addresses 4 classes of ICs; Sensor, Optoelectronic, Wireless and Actuators. Sensors include magnetic, MEMs, and sensor interface ICs. Optoelectronic products encompass linear arrays, single point sensors, infrared thermometers and CMOS wide dynamic range and night vision cameras. Wireless ICs focus on RKE, TPMS, ISM band applications, NFC, RFID reader and smart tag solutions. Actuator ICs cover LIN and CAN bus networking ICs and advanced BLDC motor driver technology. Melexis is proud of its participation toward reducing the human race's global environmental footprint. For more information, visit http://www.melexis.com.

Disclaimer

Except for those statements that report the Company's historical results, the statements being made are forward looking statements. Actual results could differ materially from those projected in the forward-looking statements. Factors which could cause actual results to differ from expectations include the following: volatility in supply and demand affecting revenues and market prices, price and availability of silicon foundry, assembly and test prices, assembly and test subcontract capacity required to meet financial targets and/or meet backlog requirements, risks and delays associated with bringing up new production capabilities or with

deliveries from subcontractors, timing and market acceptance of new products, increased expenses associated with new product acceptance of new products, increased expenses associated with new product introductions of process changes, delays in developing or achieving volume production of new products, which can result in delays or failure to contribute to revenues and profits, ability of the Company to maintain its customer and vendor base and delays in and/or inability in raising additional capital.