X0201 4 2004-04-08 0000790705 TEKELEC TKLC 0001283689 VOGT CHARLES D C/O TEKELEC 26580 W. AGOURA ROAD CALABASAS CA 91302 0 1 0 0 Pres. NA & CALA Sales Ops. None 0 D Employee Stock Option (Right to buy) 3.11 2004-04-08 4 A 0 77187 A 2013-01-21 Common Stock 77187 77187 D Employee Stock Option (right to buy) 3.11 2004-04-08 4 A 0 35252 A 2013-01-21 Common Stock 35252 35252 D Employee Stock Option (Right to buy) 3.11 2004-04-08 4 A 0 10480 A 2004-04-08 2013-01-21 Common Stock 10480 10480 D Employee Stock Option (Right to buy) 18.08 2004-04-08 4 A 0 100000 0 A 2012-06-30 Common Stock 100000 100000 D Option to purchase 77,187 shares vests and becomes exercisable cumulatively as to 36,985 shares on 04/08/2004; and as to 40,202 shares in nine equal monthly installments commencing 04/22/2004. In connection with the Acquisition of Taqua, Inc. by Tekelec (the "Acquisition"), option to purchase 77,187 shares of Tekelec Common Stock received in exchange for the Reporting Person's employee stock option to acquire 2,400,000 shares of Taqua, Inc. Common Stock at an exercise price of $0.10 per share. Option to purchase 35,252 shares vests and becomes exercisable cumulatively as to 2,858 shares on 04/08/2004; and as to 32,394 shares in nine equal monthly installments commencing 04/21/2004. In connection with the Acquisition, option to purchase 35,252 shares of Tekelec Common Stock received in exchange for the Reporting Person's employee stock option to acquire 1,096,111 shares of Taqua, Inc. Common Stock at an exercise price of $0.10 per share. In connection with the Acquisition, option to purchase 10,480 shares of Tekelec Common Stock received in exchange for the Reporting Person's employee stock option to acquire 325,864 shares of Taqua, Inc. Common Stock at an exercise price of $0.10 per share. Option to pruchase 100,000 shares vests and becomes exercisable in 16 equal quarterly installments commencing 09/30/2004. Option is exercisable as to each installment of vested shares for a period of four years following the vesting date. Reporting Person is an Officer of the Issuer and his full title is: President of North America/CALA Sales Operations. Charles Vogt 2004-04-12