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

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

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.78	12,700	238,506	552,950	565.7 K to 553 K (-2.25 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.77	22,000	412,940	565,650	587.7 K to 565.7 K (-3.74 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.79	31,500	591,885	587,650	619.2 K to 587.7 K (-5.09 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.80	60,056	1,129,053	619,150	679.2 K to 619.2 K (-8.84 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.84	25,000	471,000	679,206	704.2 K to 679.2 K (-3.55 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.85	58,900	1,110,265	704,206	763.1 K to 704.2 K (-7.72 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.86	10,000	188,600	763,106	773.1 K to 763.1 K (-1.29 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.92	5,000	94,600	773,106	778.1 K to 773.1 K (-0.64 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.94	10,100	191,294	778,106	788.2 K to 778.1 K (-1.28 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	18.95	25,000	473,750	788,206	813.2 K to 788.2 K (-3.07 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	19.00	29,000	551,000	813,206	842.2 K to 813.2 K (-3.44 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	19.02	36,000	684,720	842,206	878.2 K to 842.2 K (-4.10 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Buy	M	6.95	150,000	1,042,500	878,206	728.2 K to 878.2 K (+20.60 %)
Dec 23 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Buy	M	6.50	100,000	650,000	728,206	628.2 K to 728.2 K (+15.92 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Option Exercise	M	8.89	14,125	125,571	45,875
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Option Exercise	M	3.85	9,375	36,094	18,750
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Option Exercise	M	2.10	6,625	13,913	0
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.19	287	4,360	386,759	387 K to 386.8 K (-0.07 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.18	2,900	44,022	387,046	389.9 K to 387 K (-0.74 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.17	1,400	21,238	389,946	391.3 K to 389.9 K (-0.36 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.16	1,000	15,160	391,346	392.3 K to 391.3 K (-0.25 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.15	1,292	19,574	392,346	393.6 K to 392.3 K (-0.33 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.15	30,125	456,397	393,638	423.8 K to 393.6 K (-7.11 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Buy	M	8.89	14,125	125,571	423,763	409.6 K to 423.8 K (+3.45 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Buy	M	3.85	9,375	36,094	409,638	400.3 K to 409.6 K (+2.34 %)
Dec 15 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Buy	M	2.10	6,625	13,913	400,263	393.6 K to 400.3 K (+1.68 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Option Exercise	M	12.84	25,000	321,000	25,000
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Option Exercise	M	8.89	12,000	106,680	36,000
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Option Exercise	M	8.01	2,500	20,025	7,500
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Option Exercise	M	3.85	14,062	54,139	18,750
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Option Exercise	M	2.10	6,750	14,175	0
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Sell	S	15.23	65,426	996,438	95,140	160.6 K to 95.1 K (-40.75 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Buy	M	2.10	6,750	14,175	160,566	153.8 K to 160.6 K (+4.39 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Buy	M	8.01	2,500	20,025	153,816	151.3 K to 153.8 K (+1.65 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Buy	M	8.89	12,000	106,680	151,316	139.3 K to 151.3 K (+8.61 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Buy	M	12.84	25,000	321,000	139,316	114.3 K to 139.3 K (+21.87 %)
Dec 12 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Buy	M	3.85	14,062	54,139	114,316	100.3 K to 114.3 K (+14.03 %)
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.02	1,000	15,020	393,638	394.6 K to 393.6 K (-0.25 %)
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.01	18,436	276,724	394,638	413.1 K to 394.6 K (-4.46 %)
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Sell	S	15.00	2,000	30,000	413,074	415.1 K to 413.1 K (-0.48 %)
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and CEO	Option Exercise	M	13.07	8,000	104,560	192,000
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and CEO	Option Exercise	M	3.85	5,000	19,250	57,500
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and CEO	Buy	M	13.07	8,000	104,560	1,580,462	1.6 M to 1.6 M (+0.51 %)
Dec 08 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and CEO	Buy	M	3.85	5,000	19,250	1,572,462	1.6 M to 1.6 M (+0.32 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Option Exercise	M	4.88	7,500	36,563	30,000
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Option Exercise	M	4.53	2,500	11,325	0
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Sell	S	15.01	7,200	108,072	0	7.2 K to 0 (-100.00 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Sell	S	15.06	2,800	42,168	7,200	10 K to 7.2 K (-28.00 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Buy	M	4.88	7,500	36,563	10,000	2.5 K to 10 K (+300.00 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Buy	M	4.53	2,500	11,325	2,500	0 to 2.5 K
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Option Exercise	M	6.00	173,521	1,041,126	0
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Option Exercise	M	3.85	100,000	385,000	0
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.95	56,400	843,180	628,206	684.6 K to 628.2 K (-8.24 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.97	32,000	479,040	684,606	716.6 K to 684.6 K (-4.47 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.96	16,021	239,674	716,606	732.6 K to 716.6 K (-2.19 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.94	33,700	503,478	732,627	766.3 K to 732.6 K (-4.40 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.93	60,400	901,772	766,327	826.7 K to 766.3 K (-7.31 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.92	40,200	599,784	826,727	866.9 K to 826.7 K (-4.64 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.91	25,900	386,169	866,927	892.8 K to 866.9 K (-2.90 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	14.90	23,700	353,130	892,827	916.5 K to 892.8 K (-2.59 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	15.01	2,000	30,020	916,527	918.5 K to 916.5 K (-0.22 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	15.02	32,400	486,648	918,527	950.9 K to 918.5 K (-3.41 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	15.03	7,900	118,737	950,927	958.8 K to 950.9 K (-0.82 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	15.04	7,350	110,544	958,827	966.2 K to 958.8 K (-0.76 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Sell	S	15.05	4,300	64,715	966,177	970.5 K to 966.2 K (-0.44 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Buy	M	6.00	173,521	1,041,126	970,477	797 K to 970.5 K (+21.77 %)
Dec 02 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman of the Boa ...	Buy	M	3.85	100,000	385,000	796,956	697 K to 797 K (+14.35 %)
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	PARDUN THOMAS E	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	KIMSEY WILLIAM L	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	DENERO HENRY T	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	BEHRENDT PETER D	Director	Option Exercise	A	13.76	12,500	172,000	12,500
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	CARRILLO JOSEPH R	Principal Accountin ...	Grant	A	0.00	15,000	0	68,452	53.5 K to 68.5 K (+28.06 %)
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Senior VP & CTO	Grant	A	0.00	50,000	0	100,254	50.3 K to 100.3 K (+99.49 %)
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Option Exercise	A	13.76	250,000	3,440,000	250,000
Nov 21 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Executive VP & COO	Grant	A	0.00	300,000	0	415,074	115.1 K to 415.1 K (+260.70 %)
Sep 02 2005	WDC	WESTERN DIGITAL CO ...	MOGHADAM HOSSEIN M	Sr. VP, Research & ...	Payment of Exercise	F	13.59	3,833	52,090	50,254	54.1 K to 50.3 K (-7.09 %)
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Option Exercise	D	10.21	78,125	797,656	171,875
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Grant	A	0.00	1,250,000	0	1,567,462	317.5 K to 1.6 M (+393.75 %)
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Sell	D	0.00	28,333	0	317,462	345.8 K to 317.5 K (-8.19 %)
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Option Exercise	M	0.00	450,000	0	0
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Sell	D	9.22	450,000	4,149,000	345,000	795 K to 345 K (-56.60 %)
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	SHAKEEL ARIF	President and COO	Buy	M	0.00	450,000	0	795,000	345 K to 795 K (+130.43 %)
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Option Exercise	D	13.07	18,750	245,063	281,250
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Option Exercise	D	10.21	187,500	1,914,375	312,500
Aug 29 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Sell	D	0.00	50,000	0	696,956	747 K to 697 K (-6.69 %)
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Option Exercise	M	0.00	630,000	0	0
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Sell	D	9.22	630,000	5,808,600	746,956	1.4 M to 747 K (-45.75 %)
Jul 01 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Buy	M	0.00	630,000	0	1,376,956	747 K to 1.4 M (+84.34 %)
Jun 22 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Option Exercise	M	8.81	7,200	63,450	0
Jun 22 2005	WDC	WESTERN DIGITAL CO ...	MASSENGILL MATTHEW E	Chairman and CEO	Buy	M	8.81	7,200	63,450	746,956	739.8 K to 747 K (+0.97 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Option Exercise	M	4.40	30,000	132,000	45,000
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Sell	S	16.01	100	1,601	6,500	6.6 K to 6.5 K (-1.52 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Sell	S	16.00	1,900	30,400	6,600	8.5 K to 6.6 K (-22.35 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Sell	S	15.98	12,300	196,554	8,500	20.8 K to 8.5 K (-59.13 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Sell	S	15.97	1,700	27,149	20,800	22.5 K to 20.8 K (-7.56 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Sell	S	15.96	14,000	223,440	22,500	36.5 K to 22.5 K (-38.36 %)
Jun 09 2005	WDC	WESTERN DIGITAL CO ...	LAMBERT MICHAEL D	Director	Buy	M	4.40	30,000	132,000	36,500	6.5 K to 36.5 K (+461.54 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	CARRILLO JOSEPH R	Principal Accountin ...	Option Exercise	M	8.81	3,200	28,200	0
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	CARRILLO JOSEPH R	Principal Accountin ...	Sell	S	15.03	2,800	42,084	52,044	54.8 K to 52 K (-5.11 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	CARRILLO JOSEPH R	Principal Accountin ...	Sell	S	15.04	400	6,016	54,844	55.2 K to 54.8 K (-0.72 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	CARRILLO JOSEPH R	Principal Accountin ...	Buy	M	8.81	3,200	28,200	55,244	52 K to 55.2 K (+6.15 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Option Exercise	M	4.38	75,000	328,125	0
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.00	38,000	570,000	0	38 K to 0 (-100.00 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.02	16,800	252,336	38,000	54.8 K to 38 K (-30.66 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.03	2,500	37,575	54,800	57.3 K to 54.8 K (-4.36 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.04	1,700	25,568	57,300	59 K to 57.3 K (-2.88 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.05	10,000	150,500	59,000	69 K to 59 K (-14.49 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.09	5,100	76,959	69,000	74.1 K to 69 K (-6.88 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Sell	S	15.10	900	13,590	74,100	75 K to 74.1 K (-1.20 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	MOORE ROGER H/CA	Director	Buy	M	4.38	75,000	328,125	75,000	0 to 75 K
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Option Exercise	M	4.88	15,000	73,125	37,500
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Sell	S	15.00	15,000	225,000	0	15 K to 0 (-100.00 %)
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	COTE KATHLEEN A	Director	Buy	M	4.88	15,000	73,125	15,000	0 to 15 K
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Option Exercise	M	6.23	45,000	280,350	25,000
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Option Exercise	M	2.10	35,000	73,500	5,000
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Sell	S	15.03	3,400	51,102	232,291	235.7 K to 232.3 K (-1.44 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Sell	S	15.02	7,200	108,144	235,691	242.9 K to 235.7 K (-2.96 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Sell	S	15.01	3,600	54,036	242,891	246.5 K to 242.9 K (-1.46 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Sell	S	15.00	60,800	912,000	246,491	307.3 K to 246.5 K (-19.79 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Buy	M	6.23	45,000	280,350	307,291	262.3 K to 307.3 K (+17.16 %)
Jun 03 2005	WDC	WESTERN DIGITAL CO ...	BUKATY RAYMOND M	Sr VP, Admin, Gen C ...	Buy	M	2.10	35,000	73,500	262,291	227.3 K to 262.3 K (+15.40 %)
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	BEHRENDT PETER D	Director	Option Exercise	M	4.38	30,000	131,250	20,000
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	BEHRENDT PETER D	Director	Sell	S	14.73	30,000	441,951	21,131	51.1 K to 21.1 K (-58.67 %)
Jun 01 2005	WDC	WESTERN DIGITAL CO ...	BEHRENDT PETER D	Director	Buy	M	4.38	30,000	131,250	51,131	21.1 K to 51.1 K (+141.97 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	12.88	16,000	206,000	0
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	12.84	18,751	240,763	31,249
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	11.69	4,000	46,750	0
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	10.25	27,600	282,900	0
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	6.00	15,000	90,000	0
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	3.85	46,875	180,469	28,125
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Option Exercise	M	2.10	46,375	97,388	6,625
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.57	934	13,608	43,782	44.7 K to 43.8 K (-2.09 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.56	2,022	29,440	44,716	46.7 K to 44.7 K (-4.33 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.55	17,724	257,884	46,738	64.5 K to 46.7 K (-27.50 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.54	15,936	231,709	64,462	80.4 K to 64.5 K (-19.82 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.53	14,226	206,704	80,398	94.6 K to 80.4 K (-15.03 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.52	12,516	181,732	94,624	107.1 K to 94.6 K (-11.68 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.51	22,155	321,469	107,140	129.3 K to 107.1 K (-17.14 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Sell	S	14.50	124,581	1,806,425	129,295	253.9 K to 129.3 K (-49.07 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	10.25	27,600	282,900	253,876	226.3 K to 253.9 K (+12.20 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	12.88	16,000	206,000	226,276	210.3 K to 226.3 K (+7.61 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	12.84	18,751	240,763	210,276	191.5 K to 210.3 K (+9.79 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	11.69	4,000	46,750	191,525	187.5 K to 191.5 K (+2.13 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	6.00	15,000	90,000	187,525	172.5 K to 187.5 K (+8.69 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	3.85	46,875	180,469	172,525	125.7 K to 172.5 K (+37.31 %)
May 26 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Buy	M	2.10	46,375	97,388	125,650	79.3 K to 125.7 K (+58.50 %)
May 27 2005	WDC	WESTERN DIGITAL CO ...	COYNE JOHN F	Sr. VP, Worldwide O ...	Grant	A	0.00	70,000	0	113,782	43.8 K to 113.8 K (+159.88 %)

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