X0201 4 2004-02-26 0000790705 TEKELEC TKLC 0001236899 PIPPIN TERESA A C/O TEKELEC 26580 W. AGOURA RD. CALABASAS CA 91302 0 1 0 0 V.P. Human Resources Common Stock 2004-02-26 4 M 0 2500 8.54 A 3450 D Common Stock 2004-02-26 4 M 0 67500 15.00 A 70950 D Common Stock 2004-02-26 4 S 0 70000 19.2495 D 950 D Employee Stock Option (right to buy) 8.54 2004-02-26 4 M 0 2500 0 D Common Stock 2500 32500 D Employee Stock Option (right to buy) 15.00 2004-02-26 4 M 0 67500 15.00 D 2009-02-04 Common Stock 67500 15502 D Option to purchase 40,000 shares vests and becomes exercisable in 16 equal quarterly installments commencing 6/30/03. Each of the 16 quarterly installments will expire on the four-year anniversary of its vesting. Option to purchase 148,812 shares vests and becomes exercisable as to 31,476 shares on 2/4/2000; 9,000 shares on each of 6/30/2000, 9/30/2000 and 12/31/2000; as to 7334 shares on each of 3/31/2001, 6/30/2001 and 9/30/2001; as to 7332 shares on 12/31/2001; as to 7,334 shares on each of 3/31/2002, 6/30/2002, and 9/30/2002; and as to 7,332 shares on 12/31/2002; as to 7,334 shares on each of 3/31/2003, 6/30/2003 and 9/30/2003; as to 7,332 shares on 12/31/2003; and as to 2,334 shares on 3/31/2004. Teresa A. Pippin 2004-02-27