CDW Corporation
US ˙ NasdaqGS ˙ US12514G1085

SecurityCDW / CDW Corporation
InstitutionAdvisory Research Inc
Latest Disclosed Ownership11,726 shares
Latest Disclosed Value $ 1,419,081
Advisory Research Inc reports 7.01% increase in ownership of CDW / CDW Corporation

On May 14, 2026 - Advisory Research Inc filed a 13F-HR form disclosing ownership of 11,726 shares of CDW Corporation (US:CDW) valued at $1,419,081 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,958 shares of CDW Corporation. This represents a change in shares of 7.01% during the quarter. The current value of the position is $1,609,980 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F CDW COM 12514G108 11,726 768 7.01 1,419 -4.89 0.1481
2026-02-13 2025-12-31 13F CDW COM 12514G108 10,958 975 9.77 1,492 -6.16 0.1876
2025-11-13 2025-09-30 13F CDW COM 12514G108 9,983 -369 -3.56 1,590 -13.96 0.2088
2025-08-13 2025-06-30 13F CDW COM 12514G108 10,352 -168 -1.60 1,849 9.67 0.2840
2025-05-14 2025-03-31 13F CDW COM 12514G108 10,520 -464 -4.22 1,686 -11.83 0.2972
2025-02-13 2024-12-31 13F CDW COM 12514G108 10,984 1,610 17.18 1,912 -9.90 0.3177
2024-11-14 2024-09-30 13F CDW COM 12514G108 9,374 -283 -2.93 2,121 -1.85 0.3769
2024-08-13 2024-06-30 13F CDW COM 12514G108 9,657 529 5.80 2,162 -7.41 0.4066
2024-05-14 2024-03-31 13F CDW COM 12514G108 9,128 -63 -0.69 2,335 11.73 0.4642
2024-02-13 2023-12-31 13F CDW COM 12514G108 9,191 -2,134 -18.84 2,089 -8.54 0.3223
2023-11-13 2023-09-30 13F CDW COM 12514G108 11,325 -314 -2.70 2,285 6.98 0.3172
2023-08-14 2023-06-30 13F CDW COM 12514G108 11,639 1,174 11.22 2,136 4.71 0.2739
2023-05-12 2023-03-31 13F CDW COM 12514G108 10,465 -34 -0.32 2,040 8.80 0.3352
2023-02-13 2022-12-31 13F CDW COM 12514G108 10,499 -618 -5.56 1,875 8.01 0.1764
2022-11-15 2022-09-30 13F CDW COM 12514G108 11,117 -79 -0.71 1,735 -1.64 0.1696
2022-08-17 2022-06-30 13F/A-1 CDW COM 12514G108 11,196 2,322 26.17 1,764 11.15 0.1722
2022-08-15 2022-06-30 13F CDW COM 12514G108 8,874 0 1,587 0.0978
2022-05-16 2022-03-31 13F CDW COM 12514G108 8,874 -1,873 -17.43 1,587 -27.90 0.1271
2022-02-11 2021-12-31 13F CDW COM 12514G108 10,747 -105 -0.97 2,201 11.44 0.1732
2021-11-12 2021-09-30 13F CDW COM 12514G108 10,852 -5,762 -34.68 1,975 -31.92 0.1268
2021-08-16 2021-06-30 13F CDW COM 12514G108 16,614 -2,559 -13.35 2,901 -8.72 0.1910
2021-05-12 2021-03-31 13F CDW COM 12514G108 19,173 -160 -0.83 3,178 24.73 0.2238
2021-02-12 2020-12-31 13F CDW COM 12514G108 19,333 -460 -2.32 2,548 7.69 0.1868
2020-11-12 2020-09-30 13F CDW COM 12514G108 19,793 359 1.85 2,366 4.78 0.2306
2020-08-13 2020-06-30 13F CDW COM 12514G108 19,434 -2,552 -11.61 2,258 10.09 0.2009
2020-05-12 2020-03-31 13F CDW COM 12514G108 21,986 -906 -3.96 2,051 -37.28 0.1422
2020-02-11 2019-12-31 13F CDW COM 12514G108 22,892 -5,073 -18.14 3,270 -5.11 0.1503
2019-11-12 2019-09-30 13F CDW COM 12514G108 27,965 45 0.16 3,446 11.20 0.1659
2019-08-14 2019-06-30 13F CDW COM 12514G108 27,920 -5,633 -16.79 3,099 -4.17 0.0609
2019-05-15 2019-03-31 13F CDW COM 12514G108 33,553 -2,197 -6.15 3,234 11.59 0.0625
2019-02-13 2018-12-31 13F CDW COM 12514G108 35,750 -8,747 -19.66 2,898 -26.76 0.0614
2018-11-13 2018-09-30 13F CDW COM 12514G108 44,497 -86,983 -66.16 3,957 -62.75 0.0647
2018-08-14 2018-06-30 13F CDW COM 12514G108 131,480 -21,776 -14.21 10,622 -1.42 0.1700
2018-05-15 2018-03-31 13F CDW COM 12514G108 153,256 -16,752 -9.85 10,775 -8.79 0.1937
2018-02-08 2017-12-31 13F CDW COM 12514G108 170,008 -83,545 -32.95 11,813 -29.41 0.1955
2017-11-14 2017-09-30 13F CDW COM 12514G108 253,553 -56,718 -18.28 16,734 -13.75 0.2663
2017-08-22 2017-06-30 13F/A-1 CDW COM 12514G108 310,271 -232,107 -42.79 19,402 -38.01 0.3059
2017-08-14 2017-06-30 13F CDW COM 12514G108 542,378 0 31,301
2017-05-15 2017-03-31 13F CDW COM 12514G108 542,378 -377,138 -41.01 31,301 -34.65 0.4613
2017-02-13 2016-12-31 13F CDW COM 12514G108 919,516 -156,386 -14.54 47,898 -2.65 0.7122
2016-11-14 2016-09-30 13F/A-1 CDW COM 12514G108 1,075,902 -88,527 -7.60 49,201 5.42 0.8003
2016-11-14 2016-09-30 13F CDW COM 12514G108 1,075,902 49,201
2016-08-15 2016-06-30 13F CDW COM 12514G108 1,164,429 -323,778 -21.76 46,670 -24.43 0.8040
2016-05-16 2016-03-31 13F CDW COM 12514G108 1,488,207 -824,915 -35.66 61,761 -36.49 1.1679
2016-02-16 2015-12-31 13F CDW COM 12514G108 2,313,122 -317,550 -12.07 97,244 -9.53 1.4745
2015-11-13 2015-09-30 13F CDW COM 12514G108 2,630,672 420,357 19.02 107,489 41.86 1.5298
2015-08-17 2015-06-30 13F/A-1 CDW COM 12514G108 2,210,315 -57,001 -2.51 75,770 -10.26 0.8602
2015-08-14 2015-06-30 13F Capitala Finance COM 12514G108 81,163 1,266
2015-05-15 2015-03-31 13F CDW COM 12514G108 2,267,316 622,667 37.86 84,435 45.98 0.9231
2015-02-13 2014-12-31 13F CDW COM 12514G108 1,644,649 996,320 153.68 57,842 187.33 0.6020
2014-11-06 2014-09-30 13F CDW COM 12514G108 648,329 -13,871 -2.09 20,131 -4.64 0.1949
2014-08-14 2014-06-30 13F CDW COM 12514G108 662,200 662,200 21,111 0.1958
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.