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CDWCDW Corporation · Insider ownership research

CDW Corporation insiders sold $4.8M in the past 12 months. How much of their stake is that?

About 1.7% overall. As a group they ended with more shares than they started with. The biggest seller whose stake can be measured, Sona Chawla, gave up 21% of starting holdings.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 102 of the 311 other companies we can measure (#210 of 312)See ranking
2
buyers among officers and directors (2 trades), past 12 months
0%
of sales were under disclosed trading plans, past 12 months
2 of 19
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Sep 24, 2026Katherine Sanderson had 232 shares ($36K) withheld by the company for taxes (not a market sale). That is 0.9% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Katherine Sanderson
Chief Human Resources Officer and Executive Vice President, Coworker Success
232$153.740.9%25KSep 24, 2026Sep 28, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Less than usual: about half of the 5-year average. 2 insiders sold; the average is 3 a year. Year by year
Latest filing: Filed Oct 5 for a stock award on Oct 1. David Nelms received an award of 258 shares. Filing
112 SEC ownership filings in the period · See the evidence

What stands out

Two officers sold $4.8M with no disclosed plan: Elizabeth Connelly ($3.7M) and Sona Chawla ($1.1M, 21% of holdings). The filings don't state a reason.Elizabeth Connelly: largest such sale, Aug 7, 2026 · Sona Chawla: largest such sale, Dec 8, 2025
Two insiders bought shares: David Nelms (18K shares, $2.0M) and Christine Leahy (4.8K shares, $499K).David Nelms: purchase, May 27, 2026 · Christine Leahy: purchase, May 18, 2026
Selling rose in the last 90 days but the year remains well below the 5-year average: officers and directors sold 27K shares, against an average of 2.4K per 90 days earlier in the period. Most of it was Elizabeth Connelly (27K shares in the last 90 days); 0% of these sales were under disclosed plans.Elizabeth Connelly: largest recent sale, Aug 7, 2026

Percentages cover 17 of 19 officers and directors. Left out: Elizabeth Connelly (most of their shares vested during the period, so a percentage would mislead); Hang Tan (held no vested shares at the start). Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period
Elizabeth Connelly
Chief Commercial Officer and Executive Vice President
Sold 43% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.
$3.7MNo plan disclosed
Sona Chawla
Chief Growth and Innovation Officer and Executive Vice President
21% · $1.1MNo plan disclosed
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed
OctNovDec 2025: $1.1M no plan disclosedDecJanFebMarAprMayJunJulAug 2026: $3.7M no plan disclosed$3.7MAugSepOct

Common questions

Is the CDW Corporation CEO selling stock?

No. Christine Leahy reported no open-market sales in the past 12 months.

Why are CDW Corporation insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any CDW Corporation insiders buying?

Yes. 2 officers or directors reported 2 purchases in the past 12 months (Form 4 code P, which includes private purchases).

How much of their stake did CDW Corporation insiders sell?

About 1.7% overall. As a group they ended with more shares than they started with. The biggest seller whose stake can be measured, Sona Chawla, gave up 21% of starting holdings. That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold2 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Elizabeth Connelly
Chief Commercial Officer and Executive Vice President
$3.7M
27K shares
43%†
i
† Most of the shares Elizabeth Connelly sold arrived during the period, so this is shares sold as a share of the 23K held at the start plus the 41K received, less 1.7K withheld by the company for taxes.
No plan disclosed
Sona Chawla
Chief Growth and Innovation Officer and Executive Vice President
$1.1M
7.4K shares
21%No plan disclosed
The full ownership picture19 of 19 insiders fully reconciled · 19 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Christine Leahy
i
Minor difference of 21 shares. Difference is under 0.5% of holdings.
Chair, President, and Chief Executive Officer, Director
162K0212Kno sales
Vesting, gifts, unvested awards and holding lines for Christine Leahy
0shares vested or exercised
0gifted (net of own trusts)
−4.9Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.01145,161194,480
Christine A. Leahy Gift TrustCommon Stock, par value $0.0117,25017,250

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
23,444$247.19Mar 6, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Reconciliation: minor difference of 21 shares. Difference is under 0.5% of holdings.

Frederick Kulevich
i
Minor difference of 5 shares. Difference is under 0.5% of holdings.
Officer
36K045Kno sales
Vesting, gifts, unvested awards and holding lines for Frederick Kulevich
0shares vested or exercised
0gifted (net of own trusts)
−1.5Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0136,13544,825

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
5,288$247.19Mar 6, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Reconciliation: minor difference of 5 shares. Difference is under 0.5% of holdings.

Sona Chawla
Chief Growth and Innovation Officer and Executive Vice President
36K−7.4K28K79%
Vesting, gifts, unvested awards and holding lines for Sona Chawla
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0135,51028,153

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
7,477$98.21Mar 9, 2030$295K
8,635$247.19Mar 6, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Albert Miralles Jr.
i
Minor difference of 8 shares. Difference is under 0.5% of holdings.
Chief Financial Officer and Executive Vice President, Enterprise Business Operations
33K048Kno sales
Vesting, gifts, unvested awards and holding lines for Albert Miralles Jr.
0shares vested or exercised
0gifted (net of own trusts)
−2Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0133,09147,644

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
7,828$247.19Mar 6, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Reconciliation: minor difference of 8 shares. Difference is under 0.5% of holdings.

David Nelms
i
Minor difference of 10 shares. Difference is under 0.5% of holdings.
Director
31K052Kno sales
Vesting, gifts, unvested awards and holding lines for David Nelms
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0130,66751,821

Reconciliation: minor difference of 10 shares. Difference is under 0.5% of holdings.

James Bell
i
Minor difference of 7 shares. Difference is under 0.5% of holdings.
Director
24K026Kno sales
Vesting, gifts, unvested awards and holding lines for James Bell
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0124,03626,454

Reconciliation: minor difference of 7 shares. Difference is under 0.5% of holdings.

Elizabeth Connelly
i
Minor difference of 6 shares. Difference is under 0.5% of holdings. New Form 3 filed 2024-10-31; earlier filings set aside.
Chief Commercial Officer and Executive Vice President
23K−27K34Knot meaningful
Vesting, gifts, unvested awards and holding lines for Elizabeth Connelly
+27Kshares vested or exercised
0gifted (net of own trusts)
−1.7Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • New Form 3 filed 2024-10-31; earlier filings set aside.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0122,71434,453

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
13,039$154.47Mar 9, 2031$0
13,787$171.30Feb 24, 2032$0
9,278$212.62Feb 15, 2033$0
4,103$247.19Mar 6, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Reconciliation: minor difference of 6 shares. Difference is under 0.5% of holdings.

Donna Zarcone
Director
21K023Kno sales
Vesting, gifts, unvested awards and holding lines for Donna Zarcone
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0121,21122,958
Katherine Sanderson
i
Minor difference of 6 shares. Difference is under 0.5% of holdings.
Chief Human Resources Officer and Executive Vice President, Coworker Success
19K025Kno sales
Vesting, gifts, unvested awards and holding lines for Katherine Sanderson
0shares vested or exercised
0gifted (net of own trusts)
−3.1Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0119,32924,511

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
5,048$221.45Sep 16, 2034$0

Estimate: options held × ($137.62 − strike price), using the most recent insider trade price on Form 4 (Aug 7, 2026), not a market close.

Reconciliation: minor difference of 6 shares. Difference is under 0.5% of holdings.

Joseph Swedish
i
Minor difference of 2 shares. Difference is under 0.5% of holdings.
Director
18K020Kno sales
Vesting, gifts, unvested awards and holding lines for Joseph Swedish
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0117,85720,444

Reconciliation: minor difference of 2 shares. Difference is under 0.5% of holdings.

Virginia Addicott
i
Minor difference of 5 shares. Difference is under 0.5% of holdings.
Director
17K019Kno sales
Vesting, gifts, unvested awards and holding lines for Virginia Addicott
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0116,72618,675

Reconciliation: minor difference of 5 shares. Difference is under 0.5% of holdings.

Lynda Clarizio
i
Minor difference of 1 share. Difference is under 0.5% of holdings.
Director
14K016Kno sales
Vesting, gifts, unvested awards and holding lines for Lynda Clarizio
0shares vested or exercised
−345gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0114,45015,748

Reconciliation: minor difference of 1 share. Difference is under 0.5% of holdings.

Mukesh Kumar
i
Minor difference of 6 shares. Difference is under 0.5% of holdings.
Chief Services & Solutions Officer and Executive Vice President
10K021Kno sales
Vesting, gifts, unvested awards and holding lines for Mukesh Kumar
0shares vested or exercised
0gifted (net of own trusts)
−1.1Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.0110,39120,723

Reconciliation: minor difference of 6 shares. Difference is under 0.5% of holdings.

Anthony Foxx
i
Minor difference of 2 shares. Difference is under 0.5% of holdings.
Director
5K06.8Kno sales
Vesting, gifts, unvested awards and holding lines for Anthony Foxx
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.015,0306,758

Reconciliation: minor difference of 2 shares. Difference is under 0.5% of holdings.

Sanjay Mehrotra
Director
4.8K06.4Kno sales
Vesting, gifts, unvested awards and holding lines for Sanjay Mehrotra
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.014,7546,391
Peter Locy
i
Minor difference of 1 share. Difference is under 0.5% of holdings.
Senior Vice President and Chief Accounting Officer
3.4K06Kno sales
Vesting, gifts, unvested awards and holding lines for Peter Locy
0shares vested or exercised
0gifted (net of own trusts)
−251withheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.013,3595,951

Reconciliation: minor difference of 1 share. Difference is under 0.5% of holdings.

Marc Jones
i
Minor difference of 1 share. Difference is under 0.5% of holdings.
Director
2.8K04.5Kno sales
Vesting, gifts, unvested awards and holding lines for Marc Jones
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.012,8474,533

Reconciliation: minor difference of 1 share. Difference is under 0.5% of holdings.

Kelly Grier
i
Minor difference of 1 share. Difference is under 0.5% of holdings.
Director
2.4K04.1Kno sales
Vesting, gifts, unvested awards and holding lines for Kelly Grier
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.012,4264,069

Reconciliation: minor difference of 1 share. Difference is under 0.5% of holdings.

Hang Tan
i
Started reporting during the period; starting holdings are from the Form 3.
Chief Strategy & Transformation Officer and Executive Vice President
0034Kno sales
Vesting, gifts, unvested awards and holding lines for Hang Tan
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock, par value $0.01034,179

19 of 19 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (4 exactly, 15 with a minor or footnoted difference). Percentages cover 17 of 19 officers and directors. Left out: Elizabeth Connelly (most of their shares vested during the period, so a percentage would mislead); Hang Tan (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$4.8M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $4.8M across 34,095 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $4.8M

Sales with no 10b5-1 plan and no tax reference in the filing. $3.7M of it is Elizabeth Connelly. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Elizabeth Connelly, Aug 7, 2026

Taxes

14,591 shares ($1.8M) were withheld by the company for taxes, which isn't a market sale.

Purchases · 2 buyers (2 trades)

2 officers and directors bought shares in this period, in 2 trades(Form 4 code P). Across all their filings on record there are 9 purchase trades.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Elizabeth Connelly
Chief Commercial Officer and Executive Vice President
27K$3.7M0%77%Aug 7, 2026 to Aug 7, 2026
Sona Chawla
Chief Growth and Innovation Officer and Executive Vice President
7.4K$1.1M0%23%Dec 8, 2025 to Dec 8, 2025

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$1.1M$0$0$1.1M
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$0$0$0$0
Jun 2026$0$0$0$0
Jul 2026$0$0$0$0
Aug 2026$3.7M$0$0$3.7M
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

Less than usual: about half of the 5-year average. 2 insiders sold; the average is 3 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
34K2$4.8M
Oct 8, 2025
1 year earlier
69K2$12.8M
Oct 8, 2024
2 years earlier
172K3$38.3M
Oct 9, 2023
3 years earlier
4.7K1$956K
Oct 9, 2022
4 years earlier
10K1$1.9M
Oct 9, 2021
5 years earlier
162K6$28.8M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Christine Leahy: minor difference of 21 shares. Difference is under 0.5% of holdings.

Frederick Kulevich: minor difference of 5 shares. Difference is under 0.5% of holdings.

Albert Miralles Jr.: minor difference of 8 shares. Difference is under 0.5% of holdings.

David Nelms: minor difference of 10 shares. Difference is under 0.5% of holdings.

James Bell: minor difference of 7 shares. Difference is under 0.5% of holdings.

Elizabeth Connelly: minor difference of 6 shares. Difference is under 0.5% of holdings.

Katherine Sanderson: minor difference of 6 shares. Difference is under 0.5% of holdings.

Joseph Swedish: minor difference of 2 shares. Difference is under 0.5% of holdings.

Virginia Addicott: minor difference of 5 shares. Difference is under 0.5% of holdings.

Lynda Clarizio: minor difference of 1 share. Difference is under 0.5% of holdings.

Mukesh Kumar: minor difference of 6 shares. Difference is under 0.5% of holdings.

Anthony Foxx: minor difference of 2 shares. Difference is under 0.5% of holdings.

Peter Locy: minor difference of 1 share. Difference is under 0.5% of holdings.

Marc Jones: minor difference of 1 share. Difference is under 0.5% of holdings.

Kelly Grier: minor difference of 1 share. Difference is under 0.5% of holdings.

Inferred rename: "Madison Dearborn Capital Partners V-A, L.P" is treated as the same holder as "MDP A, 10,261,348 shares held directly by MDP C, 388,665 shares held directly by MDP Exec and 9,925,836 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (66,739,156 shares). Old name, new name

Inferred rename: "MDP A, 10,261,348 shares held directly by MDP C, 388,665 shares held directly by MDP Exec and 9,925,836 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 10,059,896 shares held directly by MDP C, 381,035 shares held directly by MDP Exec and 9,730,971 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (59,256,652 shares). Old name, new name

Inferred rename: "MDP A, 10,059,896 shares held directly by MDP C, 381,035 shares held directly by MDP Exec and 9,730,971 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 9,061,799 shares held directly by MDP C, 343,230 shares held directly by MDP Exec and 8,765,509 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (58,093,318 shares). Old name, new name

Inferred rename: "MDP A, 9,061,799 shares held directly by MDP C, 343,230 shares held directly by MDP Exec and 8,765,509 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 7,723,056 shares held directly by MDP C, 292,523 shares held directly by MDP Exec and 7,470,538 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (52,329,565 shares). Old name, new name

Inferred rename: "MDP A, 7,723,056 shares held directly by MDP C, 292,523 shares held directly by MDP Exec and 7,470,538 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 7,518,715 shares held directly by MDP C, 284,783 shares held directly by MDP Exec and 7,272,879 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (44,598,665 shares). Old name, new name

Inferred rename: "MDP A, 7,518,715 shares held directly by MDP C, 284,783 shares held directly by MDP Exec and 7,272,879 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 6,170,272 shares held directly by MDP C, 233,709 shares held directly by MDP Exec and 5,968,525 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (43,418,650 shares). Old name, new name

Inferred rename: "MDP A, 6,170,272 shares held directly by MDP C, 233,709 shares held directly by MDP Exec and 5,968,525 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 4,620,857 shares held directly by MDP C, 175,023 shares held directly by MDP Exec and 4,469,771 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (35,631,736 shares). Old name, new name

Inferred rename: "MDP A, 4,620,857 shares held directly by MDP C, 175,023 shares held directly by MDP Exec and 4,469,771 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 4,437,042 shares held directly by MDP C, 168,061 shares held directly by MDP Exec and 4,291,966 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (26,684,265 shares). Old name, new name

Inferred rename: "MDP A, 4,437,042 shares held directly by MDP C, 168,061 shares held directly by MDP Exec and 4,291,966 shares held directly by MDCP Co-Investor" is treated as the same holder as "various MDP funds described above through his investment in MDP V. Each of MDP A, MDP C, MDP Exec and MDP Co-Investor and Mr", because the old name was never reported again and the new one opened with the same balance (25,622,779 shares). Old name, new name

Inferred rename: "various MDP funds described above through his investment in MDP V. Each of MDP A, MDP C, MDP Exec and MDP Co-Investor and Mr" is treated as the same holder as "MDP A, 2,269,348 shares held directly by MDP C, 85,955 shares held directly by MDP Exec and 2,195,147 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (19,655,469 shares). Old name, new name

Inferred rename: "Providence Equity Partners VI L.P" is treated as the same holder as "PEP VI, 11,419,500 shares held directly by PEP VI-A and 7,777,188 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (59,007,410 shares). Old name, new name

Inferred rename: "PEP VI, 11,419,500 shares held directly by PEP VI-A and 7,777,188 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 11,195,311 shares held directly by PEP VI-A and 7,624,505 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (52,391,755 shares). Old name, new name

Inferred rename: "PEP VI, 11,195,311 shares held directly by PEP VI-A and 7,624,505 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 10,084,564 shares held directly by PEP VI-A and 6,868,037 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (51,363,192 shares). Old name, new name

Inferred rename: "PEP VI, 10,084,564 shares held directly by PEP VI-A and 6,868,037 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 8,594,722 shares held directly by PEP VI-A and 5,853,390 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (46,267,171 shares). Old name, new name

Inferred rename: "PEP VI, 8,594,722 shares held directly by PEP VI-A and 5,853,390 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 8,367,319 shares held directly by PEP VI-A and 5,698,518 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (39,431,897 shares). Old name, new name

Inferred rename: "PEP VI, 8,367,319 shares held directly by PEP VI-A and 5,698,518 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 6,866,683 shares held directly by PEP VI-A and 4,676,518 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (38,388,588 shares). Old name, new name

Inferred rename: "PEP VI, 6,866,683 shares held directly by PEP VI-A and 4,676,518 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 5,142,393 shares held directly by PEP VI-A and 3,502,199 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (31,503,791 shares). Old name, new name

Inferred rename: "PEP VI, 5,142,393 shares held directly by PEP VI-A and 3,502,199 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 4,937,831 shares held directly by PEP VI-A and 3,362,883 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (23,592,886 shares). Old name, new name

Inferred rename: "PEP VI, 4,937,831 shares held directly by PEP VI-A and 3,362,883 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 3,787,856 shares held directly by PEP VI-A and 2,579,699 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (22,654,372 shares). Old name, new name

Inferred rename: "PEP VI, 3,787,856 shares held directly by PEP VI-A and 2,579,699 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 2,525,478 shares held directly by PEP VI-A and 1,719,964 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (17,378,378 shares). Old name, new name

Inferred rename: "Jason J. Richards Trust which" is treated as the same holder as "Jason J. Richards Trust", because the old name was never reported again and the new one opened with the same balance (132,797 shares). Old name, new name

Inferred rename: "Lindsay M. Richards Trust which" is treated as the same holder as "Lindsay M. Richards Trust", because the old name was never reported again and the new one opened with the same balance (132,798 shares). Old name, new name

Inferred rename: "Providence Equity Partners VI L.P" is treated as the same holder as "PEP VI, 11,419,500 shares held directly by PEP VI-A and 7,777,188 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (59,007,410 shares). Old name, new name

Inferred rename: "PEP VI, 11,419,500 shares held directly by PEP VI-A and 7,777,188 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 11,195,311 shares held directly by PEP VI-A and 7,624,505 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (52,391,755 shares). Old name, new name

Inferred rename: "PEP VI, 11,195,311 shares held directly by PEP VI-A and 7,624,505 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 10,084,564 shares held directly by PEP VI-A and 6,868,037 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (51,363,192 shares). Old name, new name

Inferred rename: "PEP VI, 10,084,564 shares held directly by PEP VI-A and 6,868,037 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 8,594,722 shares held directly by PEP VI-A and 5,853,390 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (46,267,171 shares). Old name, new name

Inferred rename: "PEP VI, 8,594,722 shares held directly by PEP VI-A and 5,853,390 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 8,367,319 shares held directly by PEP VI-A and 5,698,518 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (39,431,897 shares). Old name, new name

Inferred rename: "PEP VI, 8,367,319 shares held directly by PEP VI-A and 5,698,518 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 6,866,683 shares held directly by PEP VI-A and 4,676,518 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (38,388,588 shares). Old name, new name

Inferred rename: "PEP VI, 6,866,683 shares held directly by PEP VI-A and 4,676,518 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 5,142,393 shares held directly by PEP VI-A and 3,502,199 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (31,503,791 shares). Old name, new name

Inferred rename: "PEP VI, 5,142,393 shares held directly by PEP VI-A and 3,502,199 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 4,937,831 shares held directly by PEP VI-A and 3,362,883 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (23,592,886 shares). Old name, new name

Inferred rename: "PEP VI, 4,937,831 shares held directly by PEP VI-A and 3,362,883 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 3,787,856 shares held directly by PEP VI-A and 2,579,699 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (22,654,372 shares). Old name, new name

Inferred rename: "PEP VI, 3,787,856 shares held directly by PEP VI-A and 2,579,699 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 2,525,478 shares held directly by PEP VI-A and 1,719,964 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (17,378,378 shares). Old name, new name

Inferred rename: "PEP VI, 2,525,478 shares held directly by PEP VI-A and 1,719,964 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 1,707,231 shares held directly by PEP VI-A and 1,162,701 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (11,586,692 shares). Old name, new name

Inferred rename: "PEP VI, 1,707,231 shares held directly by PEP VI-A and 1,162,701 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 1,584,494 shares held directly by PEP VI-A and 1,079,112 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (7,832,639 shares). Old name, new name

Inferred rename: "PEP VI, 1,584,494 shares held directly by PEP VI-A and 1,079,112 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP VI, 792,246 shares held directly by PEP VI-A and 539,556 shares held directly by PEP Co-Investor", because the old name was never reported again and the new one opened with the same balance (7,269,531 shares). Old name, new name

Inferred rename: "PEP VI, 792,246 shares held directly by PEP VI-A and 539,556 shares held directly by PEP Co-Investor" is treated as the same holder as "PEP GP, the general partner of PEP VI, PEP VI-A and PEP Co-Investor and Providence Equity Partners VI LLC", because the old name was never reported again and the new one opened with the same balance (3,634,765 shares). Old name, new name

Inferred rename: "Mark A. Orloff Irrevocable Trust, the assets" is treated as the same holder as "Mark A. Orloff Irrevocable Trust", because the old name was never reported again and the new one opened with the same balance (21,065 shares). Old name, new name

Inferred rename: "Ann E. Ziegler 2012 Gift Trust which" is treated as the same holder as "Ann E. Ziegler 2012 Gift Trust", because the old name was never reported again and the new one opened with the same balance (314,533 shares). Old name, new name

Inferred rename: "Ann E. Ziegler IRA Northern Trust Bank which" is treated as the same holder as "Ann E. Ziegler IRA Northern Trust Bank", because the old name was never reported again and the new one opened with the same balance (39,121 shares). Old name, new name

Inferred rename: "Madison Dearborn Capital Partners V-A, L.P" is treated as the same holder as "MDP A, 10,261,348 shares held directly by MDP C, 388,665 shares held directly by MDP Exec and 9,925,836 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (66,739,156 shares). Old name, new name

Inferred rename: "MDP A, 10,261,348 shares held directly by MDP C, 388,665 shares held directly by MDP Exec and 9,925,836 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 10,059,896 shares held directly by MDP C, 381,035 shares held directly by MDP Exec and 9,730,971 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (59,256,652 shares). Old name, new name

Inferred rename: "MDP A, 10,059,896 shares held directly by MDP C, 381,035 shares held directly by MDP Exec and 9,730,971 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 9,061,799 shares held directly by MDP C, 343,230 shares held directly by MDP Exec and 8,765,509 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (58,093,318 shares). Old name, new name

Inferred rename: "MDP A, 9,061,799 shares held directly by MDP C, 343,230 shares held directly by MDP Exec and 8,765,509 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 7,723,056 shares held directly by MDP C, 292,523 shares held directly by MDP Exec and 7,470,538 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (52,329,565 shares). Old name, new name

Inferred rename: "MDP A, 7,723,056 shares held directly by MDP C, 292,523 shares held directly by MDP Exec and 7,470,538 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 7,518,715 shares held directly by MDP C, 284,783 shares held directly by MDP Exec and 7,272,879 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (44,598,665 shares). Old name, new name

Inferred rename: "MDP A, 7,518,715 shares held directly by MDP C, 284,783 shares held directly by MDP Exec and 7,272,879 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 6,170,272 shares held directly by MDP C, 233,709 shares held directly by MDP Exec and 5,968,525 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (43,418,650 shares). Old name, new name

Inferred rename: "MDP A, 6,170,272 shares held directly by MDP C, 233,709 shares held directly by MDP Exec and 5,968,525 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 4,620,857 shares held directly by MDP C, 175,023 shares held directly by MDP Exec and 4,469,771 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (35,631,736 shares). Old name, new name

Inferred rename: "MDP A, 4,620,857 shares held directly by MDP C, 175,023 shares held directly by MDP Exec and 4,469,771 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 4,437,042 shares held directly by MDP C, 168,061 shares held directly by MDP Exec and 4,291,966 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (26,684,265 shares). Old name, new name

Inferred rename: "MDP A, 4,437,042 shares held directly by MDP C, 168,061 shares held directly by MDP Exec and 4,291,966 shares held directly by MDCP Co-Investor" is treated as the same holder as "various MDP funds described above through his investment in MDP V. Each of MDP A, MDP C, MDP Exec and MDP Co-Investor and Mr", because the old name was never reported again and the new one opened with the same balance (25,622,779 shares). Old name, new name

Inferred rename: "various MDP funds described above through his investment in MDP V. Each of MDP A, MDP C, MDP Exec and MDP Co-Investor and Mr" is treated as the same holder as "MDP A, 2,269,348 shares held directly by MDP C, 85,955 shares held directly by MDP Exec and 2,195,147 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (19,655,469 shares). Old name, new name

Inferred rename: "MDP A, 2,269,348 shares held directly by MDP C, 85,955 shares held directly by MDP Exec and 2,195,147 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 1,534,086 shares held directly by MDP C, 58,106 shares held directly by MDP Exec and 1,483,926 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (13,104,898 shares). Old name, new name

Inferred rename: "MDP A, 1,534,086 shares held directly by MDP C, 58,106 shares held directly by MDP Exec and 1,483,926 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 1,423,796 shares held directly by MDP C, 53,929 shares held directly by MDP Exec and 1,377,243 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (8,858,951 shares). Old name, new name

Inferred rename: "MDP A, 1,423,796 shares held directly by MDP C, 53,929 shares held directly by MDP Exec and 1,377,243 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, 711,359 shares held directly by MDP C, 26,944 shares held directly by MDP Exec and 688,100 shares held directly by MDCP Co-Investor", because the old name was never reported again and the new one opened with the same balance (8,222,059 shares). Old name, new name

Inferred rename: "MDP A, 711,359 shares held directly by MDP C, 26,944 shares held directly by MDP Exec and 688,100 shares held directly by MDCP Co-Investor" is treated as the same holder as "MDP A, MDP C, MDP Exec and MDP Co-Investor, Paul J. Finnegan may be deemed to", because the old name was never reported again and the new one opened with the same balance (4,107,916 shares). Old name, new name

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology1,170 filings from SEC EDGAR, and how we read them

All 1,170 Forms 3, 4 and 5 filed for CDW Corporation (SEC CIK 1402057) from Jun 27, 2013 to Oct 5, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages. 1 filing was left out because CDW Corporation filed them as an owner of another company's stock.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (28)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Christina CorleySep 12, 202475,294 shares, last reported balance as of Sep 10, 2024
Carolyn WiesenhahnSep 14, 20231,903 shares, last reported balance as of Sep 13, 2023
Paul FinneganMar 14, 2023436,625,971 shares, last reported balance as of Mar 10, 2023
Paul FinneganMar 14, 202325,622,779 shares, last reported balance as of May 22, 2015
Ilaria MocciaroMar 14, 20221,129 shares, last reported balance as of Mar 10, 2022
Collin KeboAug 18, 202163,423 shares, last reported balance as of Aug 16, 2021
Steven AlesioMar 11, 202121,206 shares, last reported balance as of Mar 10, 2021
Barry AllenMar 11, 202135,175 shares, last reported balance as of Mar 10, 2021
Benjamin ChereskinMar 11, 2021392,584 shares, last reported balance as of Mar 10, 2021
Matthew TrokaMay 14, 202062,457 shares, last reported balance as of May 13, 2020
Douglas EckroteMay 12, 2020141,533 shares, last reported balance as of May 11, 2020
Jill BillhornMay 12, 202014,930 shares, last reported balance as of May 11, 2020
Christina RotherMar 11, 2020101,521 shares, last reported balance as of Feb 10, 2020
Jonathan StevensMar 11, 202081,988 shares, last reported balance as of Feb 10, 2020
Neil FairfieldMar 11, 20206,505 shares, last reported balance as of Feb 10, 2020
Mark ChongMar 11, 202011,997 shares, last reported balance as of Feb 14, 2020
Robert KirbyMar 11, 202027,534 shares, last reported balance as of Feb 18, 2020
Thomas RichardsDec 18, 2019547,733 shares, last reported balance as of Dec 17, 2019
Neal CampbellJun 19, 201824,859 shares, last reported balance as of Jun 15, 2018
Dennis BergerFeb 15, 201873,868 shares, last reported balance as of Feb 14, 2018
Ann ZieglerNov 6, 2017117,049 shares, last reported balance as of Nov 2, 2017
Glenn CreamerJun 16, 20161,202 shares, last reported balance as of Dec 22, 2014
Robin SelatiJun 16, 20168,404 shares, last reported balance as of Jun 15, 2016
Glenn CreamerJun 16, 2016408,808,265 shares, last reported balance as of Jun 15, 2016
MADISON DEARBORN PARTNERS LLCAug 20, 2015425,479,684 shares, last reported balance as of Aug 18, 2015
Providence Equity Partners VI L.L.C.Aug 20, 2015376,187,754 shares, last reported balance as of Aug 18, 2015
Virginia SeggermanMar 11, 2014102,097 shares, last reported balance as of Jun 26, 2013
Michael DominguezNo balance on record