X0305 4 2012-05-01 0 0001356104 Mellanox Technologies, Ltd. MLNX 0001242652 GRAY MICHAEL 350 OAKMEAD PARKWAY SUITE 100 SUNNYVALE CA 94085 0 1 0 0 Chief Financial Officer Ordinary Shares 2012-05-01 4 S 0 1900 58.2065 D 31850 D Ordinary Shares 2012-05-01 4 S 0 2350 58.8562 D 29500 D Ordinary Shares 439 I By Trust Restricted share units ("RSU's"). The Reporting Person is entitled to receive one (1) ordinary share for each one (1) RSU. The sales reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2011. This transaction was executed in multiple trades in prices ranging from $57.73 to $58.63. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a shareholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Includes 29,500 Restricted Share Units ("RSUs"). The Reporting Person is entitled to receive one (1) ordinary share for each one (1) RSU. This transaction was executed in multiple trades in prices ranging from $58.64 to $59.25. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a shareholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Shares held by the M&M Gray Family 2001 Trust U/T/A, for which Mr. Gray is a trustee. /s/ Michael Gray 2012-05-03