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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
Sep 06 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Buy	M	40.68	2,500	101,700	67,500	65 K to 67.5 K (+3.85 %)
Sep 02 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Gift	G	0.00	30,000	0	1,614,375	1.6 M to 1.6 M (-1.82 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	M	40.68	2,500	101,700	0
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	M	40.24	2,500	100,600	0
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	M	37.05	5,000	185,250	0
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	M	37.05	5,000	185,250	5,000
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Sell	S	49.75	2,500	124,375	4,200	6.7 K to 4.2 K (-37.31 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Buy	M	40.24	2,500	100,600	6,700	4.2 K to 6.7 K (+59.52 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Sell	S	49.75	2,500	124,375	4,200	6.7 K to 4.2 K (-37.31 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Buy	M	40.68	2,500	101,700	6,700	4.2 K to 6.7 K (+59.52 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Sell	S	49.75	5,000	248,750	4,200	9.2 K to 4.2 K (-54.35 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Buy	M	37.05	5,000	185,250	9,200	4.2 K to 9.2 K (+119.05 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Sell	S	49.75	5,000	248,750	4,200	9.2 K to 4.2 K (-54.35 %)
Aug 29 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Buy	M	37.05	5,000	185,250	9,200	4.2 K to 9.2 K (+119.05 %)
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	16.97	14,696	249,391	156,032
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	10.63	35,304	375,282	0
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	49.63	14,696	729,408	162,658	177.4 K to 162.7 K (-8.29 %)
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	16.97	14,696	249,391	177,354	162.7 K to 177.4 K (+9.03 %)
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	49.63	35,304	1,752,247	162,658	198 K to 162.7 K (-17.83 %)
Aug 23 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	10.63	35,304	375,282	197,962	162.7 K to 198 K (+21.70 %)
Aug 22 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Option Exercise	M	29.31	3,000	87,930	14,200
Aug 22 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Sell	S	49.40	3,000	148,196	1,791	4.8 K to 1.8 K (-62.62 %)
Aug 22 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Buy	M	29.31	3,000	87,930	4,791	1.8 K to 4.8 K (+167.50 %)
Aug 22 2005	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Option Exercise	M	10.63	5,000	53,150	22,000
Aug 22 2005	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Sell	S	49.30	5,000	246,500	3,508	8.5 K to 3.5 K (-58.77 %)
Aug 22 2005	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Buy	M	10.63	5,000	53,150	8,508	3.5 K to 8.5 K (+142.53 %)
Aug 19 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	49.26	40,000	1,970,344	298,000	338 K to 298 K (-11.83 %)
Aug 04 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	M	10.81	75,000	810,750	0
Aug 04 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	51.27	75,000	3,845,063	1,644,375	1.7 M to 1.6 M (-4.36 %)
Aug 04 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	51.27	75,000	3,845,063	1,141	76.1 K to 1.1 K (-98.50 %)
Aug 04 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Buy	M	10.81	75,000	810,750	76,141	1.1 K to 76.1 K (+6,573.18 %)
Aug 03 2005	KLAC	KLA TENCOR CORP	MARKS MICHAEL E	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	KAUFMAN STEPHEN P	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	BOND ROBERT T	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	BINGHAM H RAYMOND	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Aug 03 2005	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	A	51.35	2,500	128,375	2,500
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	45.16	1,187	53,605	2,563
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	44.69	13,260	592,556	0
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	44.69	1,740	77,756	13,260
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	40.66	712	28,950	1,538
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	712	32,040	4,176	4.9 K to 4.2 K (-14.57 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	40.66	712	28,950	4,888	4.2 K to 4.9 K (+17.05 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	1,187	53,415	4,176	5.4 K to 4.2 K (-22.13 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	45.16	1,187	53,605	5,363	4.2 K to 5.4 K (+28.42 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	13,260	596,700	4,176	17.4 K to 4.2 K (-76.05 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	44.69	13,260	592,556	17,436	4.2 K to 17.4 K (+317.53 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	1,740	78,300	4,176	5.9 K to 4.2 K (-29.41 %)
Jun 29 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	44.69	1,740	77,756	5,916	4.2 K to 5.9 K (+41.67 %)
May 27 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Option Exercise	M	29.31	2,300	67,413	17,200
May 27 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Sell	S	45.80	2,300	105,340	1,367	3.7 K to 1.4 K (-62.72 %)
May 27 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Buy	M	29.31	2,300	67,413	3,667	1.4 K to 3.7 K (+168.25 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	37.05	1,875	69,469	1,875
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	34.67	2,250	78,008	3,750
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	33.75	334	11,273	0
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	32.75	625	20,469	1,375
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	29.31	1,875	54,956	6,375
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	26.25	750	19,688	750
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.05	2,250	101,366	4,176	6.4 K to 4.2 K (-35.01 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	34.67	2,250	78,008	6,426	4.2 K to 6.4 K (+53.88 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	1,875	84,375	4,176	6.1 K to 4.2 K (-30.99 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	37.05	1,875	69,469	6,051	4.2 K to 6.1 K (+44.90 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	1,875	84,375	4,176	6.1 K to 4.2 K (-30.99 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	29.31	1,875	54,956	6,051	4.2 K to 6.1 K (+44.90 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.02	625	28,138	4,176	4.8 K to 4.2 K (-13.02 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	32.75	625	20,469	4,801	4.2 K to 4.8 K (+14.97 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	750	33,750	4,176	4.9 K to 4.2 K (-15.23 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	26.25	750	19,688	4,926	4.2 K to 4.9 K (+17.96 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	45.00	334	15,030	4,176	4.5 K to 4.2 K (-7.41 %)
May 27 2005	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	33.75	334	11,273	4,510	4.2 K to 4.5 K (+8.00 %)
Jun 02 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	45.72	5,000	228,611	65,000	70 K to 65 K (-7.14 %)
May 17 2005	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Grant	A	0.00	10,000	0	10,000	0 to 10 K
May 11 2005	KLAC	KLA TENCOR CORP	MARKS MICHAEL E	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	KAUFMAN STEPHEN P	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	BOND ROBERT T	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	BINGHAM H RAYMOND	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	M	17.78	1,946	34,600	0
May 11 2005	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Buy	M	17.78	1,946	34,600	1,946	0 to 1.9 K
May 11 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	A	40.24	2,500	100,600	2,500
May 11 2005	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	A	40.24	2,500	100,600	2,500
Mar 10 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Sell	S	48.08	5,000	240,400	70,000	75 K to 70 K (-6.67 %)
Mar 03 2005	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	50.00	20,000	1,000,024	338,000	358 K to 338 K (-5.59 %)
Feb 28 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	10.63	43,968	467,380	35,304
Feb 28 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	50.49	43,968	2,220,063	162,107	206.1 K to 162.1 K (-21.34 %)
Feb 28 2005	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	10.63	43,968	467,380	206,075	162.1 K to 206.1 K (+27.12 %)
Jan 26 2005	KLAC	KLA TENCOR CORP	BINGHAM H RAYMOND	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	TOMPKINS JON D	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	MARKS MICHAEL E	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	KAUFMAN STEPHEN P	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	ELKUS RICHARD J JR	Director	Gift	G	0.00	5,000	0	75,000	80 K to 75 K (-6.25 %)
Jan 26 2005	KLAC	KLA TENCOR CORP	BOND ROBERT T	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Jan 26 2005	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	A	44.76	2,500	111,900	2,500
Dec 15 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	M	10.81	25,000	270,250	75,000
Dec 15 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	46.98	25,000	1,174,523	762	25.8 K to 762 (-97.04 %)
Dec 15 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Buy	M	10.81	25,000	270,250	25,762	762 to 25.8 K (+3,280.84 %)
Dec 15 2004	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Option Exercise	M	12.50	5,000	62,500	280
Dec 15 2004	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Sell	S	47.17	5,000	235,829	0	5 K to 0 (-100.00 %)
Dec 15 2004	KLAC	KLA TENCOR CORP	URBANEK LIDA	Director	Buy	M	12.50	5,000	62,500	5,000	0 to 5 K
Dec 13 2004	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Option Exercise	M	23.28	10,000	232,800	0
Dec 13 2004	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Sell	S	46.39	10,000	463,877	0	10 K to 0 (-100.00 %)
Dec 13 2004	KLAC	KLA TENCOR CORP	BARNHOLT EDWARD W	Director	Buy	M	23.28	10,000	232,800	10,000	0 to 10 K
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	34.67	1,500	52,005	6,000
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	32.75	5,500	180,125	2,000
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	29.31	8,250	241,808	8,250
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Option Exercise	M	26.25	2,375	62,344	1,500
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	49.02	1,500	73,530	3,835	5.3 K to 3.8 K (-28.12 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	34.67	1,500	52,005	5,335	3.8 K to 5.3 K (+39.11 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	49.02	8,250	404,415	3,835	12.1 K to 3.8 K (-68.27 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	29.31	8,250	241,808	12,085	3.8 K to 12.1 K (+215.12 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	49.02	5,500	269,610	3,835	9.3 K to 3.8 K (-58.92 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	32.75	5,500	180,125	9,335	3.8 K to 9.3 K (+143.42 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Sell	S	49.02	2,375	116,423	3,835	6.2 K to 3.8 K (-38.24 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	LAMB MAUREEN L	VP Finance & Treasu ...	Buy	M	26.25	2,375	62,344	6,210	3.8 K to 6.2 K (+61.93 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Option Exercise	M	29.31	3,000	87,930	19,500
Dec 06 2004	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Sell	S	49.68	3,000	149,050	981	4 K to 981 (-75.36 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Hall Jeffrey	VP, Corporate Finan ...	Buy	M	29.31	3,000	87,930	3,981	981 to 4 K (+305.81 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Option Exercise	M	10.63	3,500	37,205	27,000
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Option Exercise	M	10.63	2,500	26,575	30,500
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Sell	S	49.23	3,500	172,305	2,936	6.4 K to 2.9 K (-54.38 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Buy	M	10.63	3,500	37,205	6,436	2.9 K to 6.4 K (+119.21 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Sell	S	49.24	2,500	123,100	2,936	5.4 K to 2.9 K (-45.99 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	Glasser Lance A	Executive Vice Pres ...	Buy	M	10.63	2,500	26,575	5,436	2.9 K to 5.4 K (+85.15 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	16.97	47,361	803,716	170,728
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	49.28	47,361	2,334,168	161,938	209.3 K to 161.9 K (-22.63 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	16.97	47,361	803,716	209,299	161.9 K to 209.3 K (+29.25 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	16.97	2,639	44,784	218,089
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	47.50	2,639	125,353	161,938	164.6 K to 161.9 K (-1.60 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	16.97	2,639	44,784	164,577	161.9 K to 164.6 K (+1.63 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Option Exercise	M	16.97	2,639	44,784	218,089
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Sell	S	47.50	2,639	125,353	161,938	164.6 K to 161.9 K (-1.60 %)
Dec 06 2004	KLAC	KLA TENCOR CORP	SCHROEDER KENNETH L	Chief Executive Off ...	Buy	M	16.97	2,639	44,784	164,577	161.9 K to 164.6 K (+1.63 %)
Nov 02 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Option Exercise	M	10.81	25,000	270,250	100,000
Nov 02 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Gift	G	0.00	25,000	0	1,719,375	1.7 M to 1.7 M (-1.43 %)
Nov 02 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Sell	S	45.20	25,000	1,130,098	762	25.8 K to 762 (-97.04 %)
Nov 02 2004	KLAC	KLA TENCOR CORP	LEVY KENNETH	Chairman of the Boa ...	Buy	M	10.81	25,000	270,250	25,762	762 to 25.8 K (+3,280.84 %)
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	37.05	600	22,230	6,167
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	37.05	700	25,935	6,767
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	37.05	2,233	82,733	7,467
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	37.05	300	11,115	9,700
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	34.67	499	17,300	12,334
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	34.67	3,902	135,282	12,833
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	34.67	2,867	99,399	16,735
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	34.67	398	13,799	19,602
Oct 27 2004	KLAC	KLA TENCOR CORP	YARBRO STAN	Group VP, Field Ope ...	Option Exercise	M	33.75	334	11,273	0

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