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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in KLA CORP. Get notifications about new insider transactions in KLA CORP for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jan 29 2004	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	A	58.10	15,000	871,500	15,000
Jan 29 2004	KLAC	KLA TENCOR CORP	NICHOLS STUART J	VP and General Coun ...	Option Exercise	A	58.10	3,000	174,300	3,000
Jan 29 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Option Exercise	A	58.10	3,000	174,300	3,000
Jan 29 2004	KLAC	KLA TENCOR CORP	KISPERT JOHN H	Chief Financial Off ...	Option Exercise	A	58.10	15,000	871,500	15,000
Jan 29 2004	KLAC	KLA TENCOR CORP	KISPERT JOHN H	Chief Financial Off ...	Option Exercise	A	58.10	15,000	871,500	15,000
Jan 29 2004	KLAC	KLA TENCOR CORP	DICKERSON GARY E	President and COO	Option Exercise	A	58.10	25,000	1,452,500	25,000
Jan 28 2004	KLAC	KLA TENCOR CORP	COHEN AVI	VP, Pattern Solutio ...	Option Exercise	A	58.10	8,000	464,800	8,000
Dec 17 2003	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	55.08	50,000	2,754,000	161,230	211.2 K to 161.2 K (-23.67 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	44.69	2,709	121,058	19,169
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	37.05	2,500	92,625	10,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	34.67	5,000	173,350	20,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	33.75	5,041	170,134	0
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	32.75	875	28,656	8,459
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	29.31	3,000	87,930	25,500
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	26.25	875	22,969	7,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,000	297,691	2,279	7.3 K to 2.3 K (-68.69 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	34.67	5,000	173,350	7,279	2.3 K to 7.3 K (+219.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,500	148,846	2,279	4.8 K to 2.3 K (-52.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	37.05	2,500	92,625	4,779	2.3 K to 4.8 K (+109.70 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	3,000	178,615	2,279	5.3 K to 2.3 K (-56.83 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	29.31	3,000	87,930	5,279	2.3 K to 5.3 K (+131.64 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	32.75	875	28,656	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	26.25	875	22,969	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,709	161,289	2,279	5 K to 2.3 K (-54.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	44.69	2,709	121,058	4,988	2.3 K to 5 K (+118.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,041	300,132	2,279	7.3 K to 2.3 K (-68.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	33.75	5,041	170,134	7,320	2.3 K to 7.3 K (+221.19 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	44.69	2,709	121,058	19,169
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	37.05	2,500	92,625	10,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	34.67	5,000	173,350	20,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	33.75	5,041	170,134	0
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	32.75	875	28,656	8,459
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	29.31	3,000	87,930	25,500
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	26.25	875	22,969	7,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,000	297,691	2,279	7.3 K to 2.3 K (-68.69 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	34.67	5,000	173,350	7,279	2.3 K to 7.3 K (+219.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,500	148,846	2,279	4.8 K to 2.3 K (-52.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	37.05	2,500	92,625	4,779	2.3 K to 4.8 K (+109.70 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	3,000	178,615	2,279	5.3 K to 2.3 K (-56.83 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	29.31	3,000	87,930	5,279	2.3 K to 5.3 K (+131.64 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	32.75	875	28,656	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	26.25	875	22,969	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,709	161,289	2,279	5 K to 2.3 K (-54.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	44.69	2,709	121,058	4,988	2.3 K to 5 K (+118.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,041	300,132	2,279	7.3 K to 2.3 K (-68.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	33.75	5,041	170,134	7,320	2.3 K to 7.3 K (+221.19 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	44.69	2,709	121,058	19,169
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	37.05	2,500	92,625	10,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	34.67	5,000	173,350	20,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	33.75	5,041	170,134	0
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	32.75	875	28,656	8,459
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	29.31	3,000	87,930	25,500
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	M	26.25	875	22,969	7,000
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,000	297,691	2,279	7.3 K to 2.3 K (-68.69 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	34.67	5,000	173,350	7,279	2.3 K to 7.3 K (+219.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,500	148,846	2,279	4.8 K to 2.3 K (-52.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	37.05	2,500	92,625	4,779	2.3 K to 4.8 K (+109.70 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	3,000	178,615	2,279	5.3 K to 2.3 K (-56.83 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	29.31	3,000	87,930	5,279	2.3 K to 5.3 K (+131.64 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	32.75	875	28,656	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	875	52,096	2,279	3.2 K to 2.3 K (-27.74 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	26.25	875	22,969	3,154	2.3 K to 3.2 K (+38.39 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	2,709	161,289	2,279	5 K to 2.3 K (-54.31 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	44.69	2,709	121,058	4,988	2.3 K to 5 K (+118.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Sell	S	59.54	5,041	300,132	2,279	7.3 K to 2.3 K (-68.87 %)
Dec 03 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Buy	M	33.75	5,041	170,134	7,320	2.3 K to 7.3 K (+221.19 %)
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	M	47.23	5,000	236,150	0
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	M	47.23	5,000	236,150	5,000
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	59.11	5,000	295,562	100,000	105 K to 100 K (-4.76 %)
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	47.23	5,000	236,150	105,000	100 K to 105 K (+5.00 %)
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	59.11	5,000	295,562	100,000	105 K to 100 K (-4.76 %)
Dec 01 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	47.23	5,000	236,150	105,000	100 K to 105 K (+5.00 %)
Dec 15 2003	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Sell	S	57.00	1,369	78,033	29,555	30.9 K to 29.6 K (-4.43 %)
Nov 24 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	31.81	521	16,574	6,771
Nov 24 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	56.78	521	29,582	357	878 to 357 (-59.34 %)
Nov 24 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	31.81	521	16,574	878	357 to 878 (+145.94 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	M	46.28	10,000	462,800	0
Nov 12 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	59.52	10,000	595,151	100,000	110 K to 100 K (-9.09 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	46.28	10,000	462,800	110,000	100 K to 110 K (+10.00 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	51.23	650	33,299	2,600
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	37.05	650	24,083	2,600
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	34.67	1,300	45,071	5,200
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	29.31	325	9,526	11,375
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	59.16	650	38,454	357	1 K to 357 (-64.55 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	51.23	650	33,299	1,007	357 to 1 K (+182.07 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	59.16	1,300	76,908	357	1.7 K to 357 (-78.46 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	34.67	1,300	45,071	1,657	357 to 1.7 K (+364.15 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	59.16	650	38,454	357	1 K to 357 (-64.55 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	37.05	650	24,083	1,007	357 to 1 K (+182.07 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	59.16	325	19,227	357	682 to 357 (-47.65 %)
Nov 12 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	29.31	325	9,526	682	357 to 682 (+91.04 %)
Nov 06 2003	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 07 2003	KLAC	KLA TENCOR CORP	MARKS MICHAEL E	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 07 2003	KLAC	KLA TENCOR CORP	MARKS MICHAEL E	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 06 2003	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 06 2003	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 06 2003	KLAC	KLA TENCOR CORP	KAUFMAN STEPHEN P	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	KAUFMAN STEPHEN P	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 06 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 06 2003	KLAC	KLA TENCOR CORP	BOND ROBERT T	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 06 2003	KLAC	KLA TENCOR CORP	BOND ROBERT T	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Nov 05 2003	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 05 2003	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Oct 30 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	M	9.31	55,000	512,050	105,000
Oct 30 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	57.39	55,000	3,156,599	24,130	79.1 K to 24.1 K (-69.51 %)
Oct 30 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Buy	M	9.31	55,000	512,050	79,130	24.1 K to 79.1 K (+227.93 %)
Nov 05 2003	KLAC	KLA TENCOR CORP	BINGHAM H RAYMOND	Director	Option Exercise	A	59.44	5,000	297,200	10,000
Nov 05 2003	KLAC	KLA TENCOR CORP	BINGHAM H RAYMOND	Director	Option Exercise	A	59.44	5,000	297,200	5,000
Oct 30 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	M	37.05	5,000	185,250	0
Oct 30 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	57.39	5,000	286,925	100,000	105 K to 100 K (-4.76 %)
Oct 30 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	37.05	5,000	185,250	105,000	100 K to 105 K (+5.00 %)
Oct 28 2003	KLAC	KLA TENCOR CORP	WALLACE RICHARD P	Executive Vice Pres ...	Option Exercise	A	53.86	30,000	1,615,800	30,000
Oct 29 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	A	53.86	12,000	646,320	12,000
Oct 28 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Option Exercise	A	53.86	6,000	323,160	6,000
Oct 28 2003	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	A	53.86	50,000	2,693,000	50,000
Oct 28 2003	KLAC	KLA TENCOR CORP	NICHOLS STUART J	Vice President and	Option Exercise	A	53.86	6,000	323,160	6,000
Oct 28 2003	KLAC	KLA TENCOR CORP	KISPERT JOHN H	Chief Financial Off ...	Option Exercise	A	53.86	30,000	1,615,800	30,000
Oct 28 2003	KLAC	KLA TENCOR CORP	KISPERT JOHN H	Chief Financial Off ...	Option Exercise	A	53.86	30,000	1,615,800	30,000
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	A	53.86	6,000	323,160	6,000
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	31.81	2,604	82,840	7,292
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Option Exercise	M	29.31	1,625	47,629	11,700
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	55.70	1,625	90,513	357	2 K to 357 (-81.99 %)
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	29.31	1,625	47,629	1,982	357 to 2 K (+455.18 %)
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Sell	S	55.70	2,604	145,043	357	3 K to 357 (-87.94 %)
Oct 28 2003	KLAC	KLA TENCOR CORP	CAMPAGNA JOHN PETER	Vice President and ...	Buy	M	31.81	2,604	82,840	2,961	357 to 3 K (+729.41 %)
Oct 28 2003	KLAC	KLA TENCOR CORP	DICKERSON GARY E	President and	Option Exercise	A	53.86	50,000	2,693,000	50,000
Oct 28 2003	KLAC	KLA TENCOR CORP	FORTINO DENNIS J	Executive Vice Pres ...	Option Exercise	A	53.86	30,000	1,615,800	30,000
Oct 27 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	M	37.05	5,000	185,250	5,000
Oct 27 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	53.47	5,000	267,350	100,000	105 K to 100 K (-4.76 %)
Oct 27 2003	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	37.05	5,000	185,250	105,000	100 K to 105 K (+5.00 %)
Sep 16 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	M	9.31	30,000	279,300	160,000
Sep 16 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	57.09	30,000	1,712,556	24,130	54.1 K to 24.1 K (-55.42 %)
Sep 16 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Buy	M	9.31	30,000	279,300	54,130	24.1 K to 54.1 K (+124.33 %)
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Option Exercise	M	33.75	3,000	101,250	334
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Option Exercise	M	29.31	6,000	175,860	16,500
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Sell	S	57.86	6,000	347,183	3,196	9.2 K to 3.2 K (-65.25 %)
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Buy	M	29.31	6,000	175,860	9,196	3.2 K to 9.2 K (+187.73 %)
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Sell	S	57.86	3,000	173,591	3,196	6.2 K to 3.2 K (-48.42 %)
Sep 08 2003	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Accoun ...	Buy	M	33.75	3,000	101,250	6,196	3.2 K to 6.2 K (+93.87 %)
Aug 29 2003	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Sell	S	58.38	5,000	291,900	20,519	25.5 K to 20.5 K (-19.59 %)
Aug 25 2003	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	57.64	50,000	2,882,055	1,785,866	1.8 M to 1.8 M (-2.72 %)

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