CDW

SEC source: 0001183830-26-000012 · wk-form4_1791230744.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,820.61

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation 2021 Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

SEC source: 0001402057-26-000104 · wk-form4_1791230690.xml · nonDerivative · entry 1

Swedish Joseph · CIK 0001179745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,443.53

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation 2021 Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

SEC source: 0002037332-26-000009 · wk-form4_1790626196.xml · nonDerivative · entry 1

Sanderson Katherine Elizabeth · CIK 0002037332 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,510.71

F1 · shares: Represents shares withheld to cover taxes incurred in connection with the settlement of the restricted stock unit award previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000097 · wk-form4_1789416709.xml · nonDerivative · entry 1

KULEVICH FREDERICK J. · CIK 0001719308 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,824.73

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000101 · wk-form4_1789416739.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,562.61

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000102 · wk-form4_1789416744.xml · nonDerivative · entry 1

Jones Marc Ellis · CIK 0001762291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,533.26

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000100 · wk-form4_1789416732.xml · nonDerivative · entry 1

Kumar Mukesh · CIK 0002081482 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,722.657

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000098 · wk-form4_1789416716.xml · nonDerivative · entry 1

Sanderson Katherine Elizabeth · CIK 0002037332 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,742.52

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000099 · wk-form4_1789416724.xml · nonDerivative · entry 1

ADDICOTT VIRGINIA C. · CIK 0001667743 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,675.46

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000096 · wk-form4_1789416701.xml · nonDerivative · entry 1

CLARIZIO LYNDA M · CIK 0001660318 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,747.96

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000094 · wk-form4_1789416685.xml · nonDerivative · entry 1

Foxx Anthony R · CIK 0001831914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,757.9

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000095 · wk-form4_1789416693.xml · nonDerivative · entry 1

TAN HANG · CIK 0002129822 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,179.49

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000093 · wk-form4_1789416680.xml · nonDerivative · entry 1

MIRALLES ALBERT JOSEPH JR · CIK 0001605507 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,643.8

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000091 · wk-form4_1789416665.xml · nonDerivative · entry 1

LEAHY CHRISTINE A · CIK 0001215336 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,480.41

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000092 · wk-form4_1789416671.xml · nonDerivative · entry 1

LOCY PETER R · CIK 0001927457 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,950.6

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000088 · wk-form4_1789416648.xml · nonDerivative · entry 1

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,453.34

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000090 · wk-form4_1789416660.xml · nonDerivative · entry 1

Swedish Joseph · CIK 0001179745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,231.53

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000089 · wk-form4_1789416654.xml · nonDerivative · entry 1

Grier Kelly J · CIK 0001945869 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,068.95

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000087 · wk-form4_1789416642.xml · nonDerivative · entry 1

BELL JAMES A · CIK 0001182047 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,453.99

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation 2021 Long-Term Incentive Plan.

SEC source: 0001402057-26-000070 · wk-form4_1787171346.xml · nonDerivative · entry 1

Kumar Mukesh · CIK 0002081482 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,530.357

F1 · shares: Represents shares withheld to cover taxes incurred in connection with the settlement of the restricted stock unit award previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000068 · wk-form4_1786479982.xml · derivative · entry 5

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 14,900 shares

Expires 2030-03-09

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: 14,900 options were granted of which one third of the shares vested on each of March 9, 2021, 2022, and 2023. The grant was made under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000068 · wk-form4_1786479982.xml · derivative · entry 4

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 11,795 shares

Expires 2029-02-25

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: 11,795 options were granted of which one third of the shares vested on each of February 25, 2020, 2021, and 2022. The grant was made under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000068 · wk-form4_1786479982.xml · nonDerivative · entry 3

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,215.46

F1 · shares: The price reported is the average weighted price. The shares were sold in multiple transactions at prices ranging from $137.345 to $137.978, inclusive. The reporting person undertakes to provide to the SEC, the Issuer and any security holder, the full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001402057-26-000068 · wk-form4_1786479982.xml · nonDerivative · entry 2

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,910.46

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: 0001402057-26-000068 · wk-form4_1786479982.xml · nonDerivative · entry 1

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,010.46

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: 0001402057-26-000057 · wk-form4_1783368571.xml · nonDerivative · entry 1

Swedish Joseph · CIK 0001179745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,202.4

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

SEC source: 0001402057-26-000058 · wk-form4_1783368600.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,415.02

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

SEC source: 0001402057-26-000046 · wk-form4_1781294646.xml · nonDerivative · entry 1

Swedish Joseph · CIK 0001179745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,994.4

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000052 · wk-form4_1781294693.xml · nonDerivative · entry 1

Kumar Mukesh · CIK 0002081482 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,677.7

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 6.23 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000043 · wk-form4_1781294627.xml · nonDerivative · entry 1

Sanderson Katherine Elizabeth · CIK 0002037332 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,499.48

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000045 · wk-form4_1781294640.xml · nonDerivative · entry 1

Grier Kelly J · CIK 0001945869 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,061.77

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 0.78 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000049 · wk-form4_1781294669.xml · nonDerivative · entry 1

KULEVICH FREDERICK J. · CIK 0001719308 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,640.06

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 4.69 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000050 · wk-form4_1781294677.xml · nonDerivative · entry 1

ADDICOTT VIRGINIA C. · CIK 0001667743 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,593.33

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 5.36 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000054 · wk-form4_1781294717.xml · nonDerivative · entry 1

CLARIZIO LYNDA M · CIK 0001660318 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,740.78

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 0.78 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000047 · wk-form4_1781294652.xml · nonDerivative · entry 1

BELL JAMES A · CIK 0001182047 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,358.29

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 6.56 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000056 · wk-form4_1781294736.xml · nonDerivative · entry 1

Jones Marc Ellis · CIK 0001762291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,513.33

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 1.29 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000055 · wk-form4_1781294729.xml · nonDerivative · entry 1

TAN HANG · CIK 0002129822 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,966.69

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000053 · wk-form4_1781294701.xml · nonDerivative · entry 1

LEAHY CHRISTINE A · CIK 0001215336 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,655.11

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000051 · wk-form4_1781294685.xml · nonDerivative · entry 1

LOCY PETER R · CIK 0001927457 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,921.15

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000048 · wk-form4_1781294661.xml · nonDerivative · entry 1

MIRALLES ALBERT JOSEPH JR · CIK 0001605507 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,344.47

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 7.75 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000044 · wk-form4_1781294632.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,186.02

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

SEC source: 0001402057-26-000042 · wk-form4_1781294619.xml · nonDerivative · entry 1

CONNELLY ELIZABETH H. · CIK 0001761744 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,215.46

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 6.2 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000041 · wk-form4_1781294611.xml · nonDerivative · entry 1

Foxx Anthony R · CIK 0001831914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,728.19

F1 · shares: Dividend equivalents awarded pursuant to outstanding restricted stock unit awards previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 1.94 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001402057-26-000040 · wk-form4_1780085005.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,025.12

F1 · shares: Represents shares of common stock purchased by the reporting person on the open market.

SEC source: 0001402057-26-000034 · wk-form4_1779221578.xml · nonDerivative · entry 1

LEAHY CHRISTINE A · CIK 0001215336 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,356.67

F1 · shares: Represents shares of common stock purchased by the reporting person on the open market.

F2 · balance_after: This figure has been adjusted to reflect the addition of 21.1 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0002129822-26-000003 · wk-form4_1778704510.xml · nonDerivative · entry 1

TAN HANG · CIK 0002129822 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,802

F1 · shares: This is a grant of restricted stock units under the CDW Corporation Long-Term Incentive Plan. The restricted stock units vest as to one third of the shares on each of May 11, 2027, 2028, and 2029.

SEC source: 0001927457-26-000008 · wk-form4_1778704502.xml · nonDerivative · entry 1

LOCY PETER R · CIK 0001927457 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,902.6

F1 · shares: This is a grant of restricted stock units under the CDW Corporation Long-Term Incentive Plan. The restricted stock units vest on March 5, 2029.

F2 · balance_after: This figure has been adjusted to reflect the addition of 0.61 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001179745-26-000008 · wk-form4_1775247811.xml · nonDerivative · entry 1

Swedish Joseph · CIK 0001179745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,963.45

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

F2 · balance_after: This figure has been adjusted to reflect the addition of 1.77 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0001183830-26-000008 · wk-form4_1775248255.xml · nonDerivative · entry 1

NELMS DAVID W · CIK 0001183830 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,025.12

F1 · shares: This is a grant of fully vested restricted stock units under the CDW Corporation Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement.

F2 · balance_after: This figure has been adjusted to reflect the addition of 9.5 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.

SEC source: 0002037332-26-000006 · wk-form4_1774297216.xml · nonDerivative · entry 1

Sanderson Katherine Elizabeth · CIK 0002037332 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,434.22

F1 · shares: Represents shares withheld to cover taxes incurred in connection with the settlement of the restricted stock unit award previously granted under the CDW Corporation Long-Term Incentive Plan.

F2 · balance_after: This figure has been adjusted to reflect the addition of 6.08 shares, representing dividend equivalent awards on March 10, 2026, which were inadvertently omitted from the Form 4 filed on March 12, 2026.