WDC

SEC source: 0001266824-04-000087 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 929,356

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000087 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 723,106

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000089 · edgardoc.xml · derivative · entry 5

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,500

Underlying: Common Stock · 7,500 shares

Expires 2011-01-23

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option vested 25% 12 months from the grant date of 1/23/2001 and 6.25% vested at the end of each three-month period between 1/24/2002 through 10/23/2004. The remaining shares underlying the option will vest 6.25 % at the end of each three-month period thereafter.

SEC source: 0001266824-04-000089 · edgardoc.xml · derivative · entry 4

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Common Stock · 7,500 shares

Expires 2011-11-29

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The option vested 25% 12 months from the grant date of 11/29/2001 and 6.25% vested at the end of each three-month period between 11/30/2002 through 11/29/2004. The remaining shares underlying the option will vest 6.25 % at the end of each three-month period thereafter.

F2 · derivative.expiration_date: The expiration date was inadvertently reported as 11/19/2011 on a form filed on 6/28/2002.

SEC source: 0001266824-04-000089 · edgardoc.xml · nonDerivative · entry 3

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001266824-04-000089 · edgardoc.xml · nonDerivative · entry 2

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000089 · edgardoc.xml · nonDerivative · entry 1

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,500

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000063 · edgardoc.xml · derivative · entry 2

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,386

Underlying: Common Stock · 340 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000065 · edgardoc.xml · derivative · entry 1

BEHRENDT PETER D · CIK 0001216720 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000069 · edgardoc.xml · derivative · entry 1

DENERO HENRY T · CIK 0001227538 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000071 · edgardoc.xml · derivative · entry 1

KIMSEY WILLIAM L · CIK 0001232832 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000073 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000075 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000077 · edgardoc.xml · derivative · entry 1

PARDUN THOMAS E · CIK 0001232833 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000079 · edgardoc.xml · derivative · entry 1

COTE KATHLEEN A · CIK 0001181540 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each three-month period thereafter.

SEC source: 0001266824-04-000081 · edgardoc.xml · derivative · entry 6

BOOTH I MACALLISTER · CIK 0001017389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,100 shares

Expires 2007-01-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

F2 · derivative.exercise_price: 1-for-1

F1 · derivative.exercise_date: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

SEC source: 0001266824-04-000081 · edgardoc.xml · derivative · entry 5

BOOTH I MACALLISTER · CIK 0001017389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,100 shares

Expires 2006-04-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

F2 · derivative.exercise_price: 1-for-1

F1 · derivative.exercise_date: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

SEC source: 0001266824-04-000081 · edgardoc.xml · nonDerivative · entry 3

BOOTH I MACALLISTER · CIK 0001017389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,211

F1 · security: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

SEC source: 0001266824-04-000081 · edgardoc.xml · nonDerivative · entry 2

BOOTH I MACALLISTER · CIK 0001017389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,411

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

SEC source: 0001266824-04-000081 · edgardoc.xml · nonDerivative · entry 1

BOOTH I MACALLISTER · CIK 0001017389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,311

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The phantom stock units were previously granted to the reporting person pursuant to the issuer's Non-Employee Directors Restricted Stock Unit Plan. On the reporting person's termination of services as a director on November 18, 2004, the phantom stock units became payable to the reporting person in cash in accordance with that Plan.

SEC source: 0001266824-04-000063 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,046

Underlying: Common Stock · 199 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000061 · edgardoc.xml · derivative · entry 1

CARRILLO JOSEPH R · CIK 0001232830 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,000

Underlying: Common Stock · 19,000 shares

Expires 2014-11-09

F1 · derivative.exercise_date: Options vest 25% of the total shares granted on the first anniversary of the grant date and 6.25% vesting at the end of each quarter thereafter.

SEC source: 0001266824-05-000037 · edgardoc.xml · nonDerivative · entry 1

PARDUN THOMAS E · CIK 0001232833 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trust

Disclosed balance after: 0

F1 · kind: On October 25, 2004, contrary to its limited discretionary authority, the investment manager of the reporting person's family trust account sold 5,000 shares held in such account. On January 28, 2005, also contrary to its limited discretionary authority, the investment manager repurchased 5,000 shares for deposit into the family trust account. Both the sale and the purchase were neither initiated by the reporting person, or by the other trustee of the family trust, nor made known to either of them at the time.

F1 · shares: On October 25, 2004, contrary to its limited discretionary authority, the investment manager of the reporting person's family trust account sold 5,000 shares held in such account. On January 28, 2005, also contrary to its limited discretionary authority, the investment manager repurchased 5,000 shares for deposit into the family trust account. Both the sale and the purchase were neither initiated by the reporting person, or by the other trustee of the family trust, nor made known to either of them at the time.

SEC source: 0001266824-04-000059 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,847

Underlying: Common Stock · 359 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000053 · primary_doc.xml · derivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,038 shares

Expires 2004-10-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

F2 · derivative.exercise_date: Exercisable 100% one year from the grant date.

SEC source: 0001266824-04-000053 · primary_doc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 473,106

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

SEC source: 0001266824-04-000055 · edgardoc.xml · derivative · entry 2

CARRILLO JOSEPH R · CIK 0001232830 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,019 shares

Expires 2004-10-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

F2 · derivative.exercise_date: Exercisable 100% one year from the grant date.

SEC source: 0001266824-04-000055 · edgardoc.xml · nonDerivative · entry 1

CARRILLO JOSEPH R · CIK 0001232830 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,886

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

SEC source: 0001266824-04-000057 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,488

Underlying: Common Stock · 210 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000052 · edgardoc.xml · derivative · entry 2

BUKATY RAYMOND M · CIK 0001232829 · Sr. V.P., Gen. Counsel & Secty

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 443 shares

Expires 2004-10-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

F2 · derivative.exercise_date: Exercisable 100% one year from the grant date.

SEC source: 0001266824-04-000052 · edgardoc.xml · nonDerivative · entry 1

BUKATY RAYMOND M · CIK 0001232829 · Sr. V.P., Gen. Counsel & Secty

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,410

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of a stock option that would have soon expired and was originally granted in October 1999 under the Issuer's Broad-Based Stock Incentive Plan.

SEC source: 0001266824-04-000050 · primary_doc.xml · derivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,800 shares

Expires 2004-09-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of stock options that would have soon expired and were originally granted in September 1994 under the Issuer's Amended and Restated Employee Stock Option Plan in a transaction exempt under Rule 16b-3.

F2 · derivative.exercise_date: On September 8, 1995, 25% of the total shares granted became exercisable and 6.25% became exercisable each quarter thereafter.

SEC source: 0001266824-04-000050 · primary_doc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467,068

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction is a purchase of stock pursuant to the exercise of stock options that would have soon expired and were originally granted in September 1994 under the Issuer's Amended and Restated Employee Stock Option Plan in a transaction exempt under Rule 16b-3.

SEC source: 0001266824-04-000049 · edgardoc.xml · derivative · entry 2

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,278

Underlying: Common Stock · 386 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000049 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,892

Underlying: Common Stock · 237 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000046 · primary_doc.xml · derivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 420,000 shares

Expires 2004-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 1-for-1

SEC source: 0001266824-04-000046 · primary_doc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446,268

SEC source: 0001266824-04-000046 · primary_doc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 866,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000047 · primary_doc.xml · derivative · entry 4

SHAKEEL ARIF · CIK 0001232828 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 300,000 shares

Expires 2004-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 1-for-1

SEC source: 0001266824-04-000047 · primary_doc.xml · nonDerivative · entry 2

SHAKEEL ARIF · CIK 0001232828 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,735

F1 · balance_after: Includes 2,561 shares of WDC common stock acquired under the issuer's Employee Stock Purchase Plan on January 31, 2004.

SEC source: 0001266824-04-000047 · primary_doc.xml · nonDerivative · entry 1

SHAKEEL ARIF · CIK 0001232828 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 612,735

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000045 · edgardoc.xml · derivative · entry 2

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,655

Underlying: Common Stock · 383 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000043 · edgardoc.xml · derivative · entry 2

CARRILLO JOSEPH R · CIK 0001232830 · V.P. & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,200 shares

Expires 2004-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: One year from grant date 25% of the total shares became exercisable on May 19,1995, and 6.25% became exercisable each quarter thereafter.

SEC source: 0001266824-04-000043 · edgardoc.xml · nonDerivative · entry 1

CARRILLO JOSEPH R · CIK 0001232830 · V.P. & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,382

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 6,508 shares and 3,197 shares acquired under the issuer's Employee Stock Purchase plan on July 31, 2003 and January 31, 2004 respectively.

SEC source: 0001266824-04-000045 · edgardoc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,272

Underlying: Common Stock · 231 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000039 · primary_doc.xml · derivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,008 shares

Expires 2004-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: One year from grant date 25% of the total shares become exercisable, and 6.25% become exercisable each quarter thereafter.

SEC source: 0001266824-04-000039 · primary_doc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001266824-04-000038 · primary_doc.xml · derivative · entry 2

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,041

Underlying: Common Stock · 288 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000038 · primary_doc.xml · derivative · entry 1

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,753

Underlying: Common Stock · 175 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

SEC source: 0001266824-04-000031 · primary_doc.xml · derivative · entry 2

MOORE ROGER H/CA · CIK 0001204825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,578

Underlying: Common Stock · 303 shares

Expires not disclosed

F1 · derivative.exercise_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.

F1 · derivative.expiration_date: The deferred stock units reported above reflect the conversion of cash directors fees into deferred stock units, to be paid in shares of the issuer's common stock on a one-for-one basis at the time elected by the reporting person, pursuant to the issuer's Non-Employee Directors Stock-For-Fees Plan and the issuer's Deferred Compensation Plan.