History of M And T Bank Corp ownership of Western Digital Corp (WDC)

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Filed As-Of/On Form FullName
Symbol Country Industry Shares
Activity Shares Change Shares Change Pct. Hypothetical Old Value
Hypothetical New Value Hypothetical Value Change Hypothetical Return Hypothetical Results

Director Ten Pct Other Officer
Officer Title History

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Holdings/Transactions

Filed As-Of/On Form Fullname Symbol Country Industry Shares Activity Shares Change Shares Pct. Change Hypothetical Old Value Hypothetical New Value Hypothetical Value Chg. Hypothetical Return Hypothetical Results Director Other Ten Pct Officer Officer Title History
2009-11-03 2009-09-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 149,220 Sold Some -55,592 -27.14 % $5,124,215 $5,692,743 $568,528 11.09 % $-211,806 History of M And T Bank Corp Ownership Of Western Digital Corp

2009-07-23 2009-06-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 204,812 Added More 78,494 62.13 % $6,181,226 $7,813,578 $1,632,352 26.40 % $625,597 History of M And T Bank Corp Ownership Of Western Digital Corp

2009-04-30 2009-03-31 13F-HR/A Western Digital Corp WDC US Computers-Memory Devices 126,318 Added More 125,351 12962.87 % $2,970,999 $4,819,032 $1,848,032 62.20 % $1,833,885 History of M And T Bank Corp Ownership Of Western Digital Corp

2009-01-30 2008-12-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 967 No Change 0 0 % $14,196 $36,891 $22,695 159.87 % $0 History of M And T Bank Corp Ownership Of Western Digital Corp

2008-11-03 2008-09-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 967 No Change 0 0 % $16,468 $36,891 $20,423 124.01 % $0 History of M And T Bank Corp Ownership Of Western Digital Corp

2008-07-29 2008-06-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 967 No Change 0 0 % $28,410 $36,891 $8,481 29.85 % $0 History of M And T Bank Corp Ownership Of Western Digital Corp

2008-05-06 2008-03-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 967 New Holding 967 100 % $28,604 $36,891 $8,287 28.97 % $8,287 History of M And T Bank Corp Ownership Of Western Digital Corp

2008-02-01 2007-12-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 0 Sold All -867 -100 % - - - 36.49 % $-8,843 History of M And T Bank Corp Ownership Of Western Digital Corp

2007-10-30 2007-09-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 867 New Holding 867 100 % $21,432 $33,076 $11,644 54.32 % $11,644 History of M And T Bank Corp Ownership Of Western Digital Corp

2007-10-12 2007-06-30 13F-HR/A Western Digital Corp WDC US Computers-Memory Devices 0 Sold All -867 -100 % - - - 49.84 % $-11,002 History of M And T Bank Corp Ownership Of Western Digital Corp

2007-05-09 2007-03-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 867 Sold Some -203 -18.97 % $15,771 $33,076 $17,305 109.73 % $-4,052 History of M And T Bank Corp Ownership Of Western Digital Corp

2007-02-05 2006-12-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 1,070 New Holding 1,070 100 % $20,533 $40,821 $20,287 98.80 % $20,287 History of M And T Bank Corp Ownership Of Western Digital Corp

2006-01-27 2005-12-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 0 Sold All -132,500 -100 % - - - 75.48 % $-2,174,325 History of M And T Bank Corp Ownership Of Western Digital Corp

2005-11-03 2005-09-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 132,500 Added More 64,800 95.71 % $1,676,125 $5,054,875 $3,378,750 201.58 % $1,652,400 History of M And T Bank Corp Ownership Of Western Digital Corp

2005-08-11 2005-06-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 67,700 Sold Some -66,900 -49.70 % $1,008,053 $2,582,755 $1,574,702 156.21 % $-1,556,094 History of M And T Bank Corp Ownership Of Western Digital Corp

2005-05-09 2005-03-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 134,600 New Holding 134,600 100 % $1,809,024 $5,134,990 $3,325,966 183.85 % $3,325,966 History of M And T Bank Corp Ownership Of Western Digital Corp

2005-02-08 2004-12-31 13F-HR Western Digital Corp WDC US Computers-Memory Devices 0 Sold All -13,600 -100 % - - - 237.61 % $-365,160 History of M And T Bank Corp Ownership Of Western Digital Corp

2004-11-10 2004-09-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 13,600 Sold Some -3,500 -20.46 % $120,360 $518,840 $398,480 331.07 % $-102,550 History of M And T Bank Corp Ownership Of Western Digital Corp

2004-08-10 2004-06-30 13F-HR Western Digital Corp WDC US Computers-Memory Devices 17,100 New Holding 17,100 100 % $117,648 $652,365 $534,717 454.50 % $534,717 History of M And T Bank Corp Ownership Of Western Digital Corp

Returned 19 Transactions!

Note: All amounts are based on price of stock at date reported versus the current price! They do not represent actual profit/loss!
There has been no adjustmentsfor splits!

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Filed	As-Of/On	Form	Fullname	Symbol	Country	Industry	Shares	Activity	Shares Change	Shares Pct. Change	Hypothetical Old Value	Hypothetical New Value	Hypothetical Value Chg.	Hypothetical Return	Hypothetical Results	History
2009-11-03	2009-09-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	149,220	Sold Some	-55,592	-27.14 %	$5,124,215	$5,692,743	$568,528	11.09 %	$-211,806	History of M And T Bank Corp Ownership Of Western Digital Corp
2009-07-23	2009-06-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	204,812	Added More	78,494	62.13 %	$6,181,226	$7,813,578	$1,632,352	26.40 %	$625,597	History of M And T Bank Corp Ownership Of Western Digital Corp
2009-04-30	2009-03-31	13F-HR/A	Western Digital Corp	WDC	US	Computers-Memory Devices	126,318	Added More	125,351	12962.87 %	$2,970,999	$4,819,032	$1,848,032	62.20 %	$1,833,885	History of M And T Bank Corp Ownership Of Western Digital Corp
2009-01-30	2008-12-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	967	No Change	0	0 %	$14,196	$36,891	$22,695	159.87 %	$0	History of M And T Bank Corp Ownership Of Western Digital Corp
2008-11-03	2008-09-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	967	No Change	0	0 %	$16,468	$36,891	$20,423	124.01 %	$0	History of M And T Bank Corp Ownership Of Western Digital Corp
2008-07-29	2008-06-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	967	No Change	0	0 %	$28,410	$36,891	$8,481	29.85 %	$0	History of M And T Bank Corp Ownership Of Western Digital Corp
2008-05-06	2008-03-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	967	New Holding	967	100 %	$28,604	$36,891	$8,287	28.97 %	$8,287	History of M And T Bank Corp Ownership Of Western Digital Corp
2008-02-01	2007-12-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	0	Sold All	-867	-100 %	-	-	-	36.49 %	$-8,843	History of M And T Bank Corp Ownership Of Western Digital Corp
2007-10-30	2007-09-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	867	New Holding	867	100 %	$21,432	$33,076	$11,644	54.32 %	$11,644	History of M And T Bank Corp Ownership Of Western Digital Corp
2007-10-12	2007-06-30	13F-HR/A	Western Digital Corp	WDC	US	Computers-Memory Devices	0	Sold All	-867	-100 %	-	-	-	49.84 %	$-11,002	History of M And T Bank Corp Ownership Of Western Digital Corp
2007-05-09	2007-03-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	867	Sold Some	-203	-18.97 %	$15,771	$33,076	$17,305	109.73 %	$-4,052	History of M And T Bank Corp Ownership Of Western Digital Corp
2007-02-05	2006-12-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	1,070	New Holding	1,070	100 %	$20,533	$40,821	$20,287	98.80 %	$20,287	History of M And T Bank Corp Ownership Of Western Digital Corp
2006-01-27	2005-12-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	0	Sold All	-132,500	-100 %	-	-	-	75.48 %	$-2,174,325	History of M And T Bank Corp Ownership Of Western Digital Corp
2005-11-03	2005-09-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	132,500	Added More	64,800	95.71 %	$1,676,125	$5,054,875	$3,378,750	201.58 %	$1,652,400	History of M And T Bank Corp Ownership Of Western Digital Corp
2005-08-11	2005-06-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	67,700	Sold Some	-66,900	-49.70 %	$1,008,053	$2,582,755	$1,574,702	156.21 %	$-1,556,094	History of M And T Bank Corp Ownership Of Western Digital Corp
2005-05-09	2005-03-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	134,600	New Holding	134,600	100 %	$1,809,024	$5,134,990	$3,325,966	183.85 %	$3,325,966	History of M And T Bank Corp Ownership Of Western Digital Corp
2005-02-08	2004-12-31	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	0	Sold All	-13,600	-100 %	-	-	-	237.61 %	$-365,160	History of M And T Bank Corp Ownership Of Western Digital Corp
2004-11-10	2004-09-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	13,600	Sold Some	-3,500	-20.46 %	$120,360	$518,840	$398,480	331.07 %	$-102,550	History of M And T Bank Corp Ownership Of Western Digital Corp
2004-08-10	2004-06-30	13F-HR	Western Digital Corp	WDC	US	Computers-Memory Devices	17,100	New Holding	17,100	100 %	$117,648	$652,365	$534,717	454.50 %	$534,717	History of M And T Bank Corp Ownership Of Western Digital Corp