CDW Corporation
MX ˙ BMV ˙ US12514G1085
SecurityMX:CDW / CDW Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership6,316 shares
Latest Disclosed Value $ 764,362
Marshall Wace, Llp reports 83.56% decrease in ownership of CDW / CDW Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 6,316 shares of CDW Corporation (MX:CDW) valued at $764,362 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 38,416 shares of CDW Corporation. This represents a change in shares of -83.56% during the quarter.

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 COMMON STOCK 12514G108 6,316 -32,100 -83.56 764 -85.40 0.0004
2026-02-13 2025-12-31 13F CDW COMMON STOCK 12514G108 38,416 -560,832 -93.59 5,232 -94.52 0.0048
2025-11-13 2025-09-30 13F CDW COMMON STOCK 12514G108 599,248 430,796 255.74 95,448 217.28 0.0968
2025-08-13 2025-06-30 13F CDW COMMON STOCK 12514G108 168,452 119,719 245.66 30,084 285.23 0.0339
2025-05-15 2025-03-31 13F CDW COMMON STOCK 12514G108 48,733 -190,584 -79.64 7,810 -81.25 0.0099
2025-02-13 2024-12-31 13F CDW COMMON STOCK 12514G108 239,317 239,317 41,651 0.0501
2023-02-14 2022-12-31 13F CDW COMMON STOCK 12514G108 0 -49,013 -100.00 0 -100.00
2022-11-14 2022-09-30 13F CDW COMMON STOCK 12514G108 49,013 -37,059 -43.06 7,650 -43.59 0.0168
2022-08-15 2022-06-30 13F CDW COMMON STOCK 12514G108 86,072 71,691 498.51 13,561 427.05 0.0279
2022-05-16 2022-03-31 13F CDW COMMON STOCK 12514G108 14,381 -17,369 -54.71 2,573 -60.43 0.0049
2022-02-14 2021-12-31 13F CDW COMMON STOCK 12514G108 31,750 31,750 6,502 0.0120
2021-05-17 2021-03-31 13F CDW COMMON STOCK 12514G108 0 -25,251 -100.00 0 -100.00
2021-02-16 2020-12-31 13F CDW COMMON STOCK 12514G108 25,251 25,251 3,327 0.0180
2020-11-16 2020-09-30 13F CDW COMMON STOCK 12514G108 0 -27,761 -100.00 0 -100.00
2020-08-13 2020-06-30 13F CDW COMMON STOCK 12514G108 27,761 17,420 168.46 3,226 234.30 0.0226
2020-05-15 2020-03-31 13F CDW COMMON STOCK 12514G108 10,341 10,341 965 0.0096
2019-08-14 2019-06-30 13F CDW COMMON STOCK 12514G108 0 -24,402 -100.00 0 -100.00
2019-05-29 2019-03-31 13F/A-1 CDW COMMON STOCK 12514G108 24,402 24,402 2,352 0.0221
2019-05-14 2019-03-31 13F CDW COMMON STOCK 12514G108 24,402 24,402 2,352
2018-11-14 2018-09-30 13F CDW COMMON STOCK 12514G108 0 -77,466 -100.00 0 -100.00
2018-08-14 2018-06-30 13F CDW COMMON STOCK 12514G108 77,466 77,466 6,258 0.0936
2016-11-10 2016-09-30 13F CDW COMMON STOCK 12514G108 0 -11,199 -100.00 0 -100.00
2016-08-12 2016-06-30 13F CDW COMMON STOCK 12514G108 11,199 -58,929 -84.03 449 -84.57 0.0038
2016-05-13 2016-03-31 13F CDW COMMON STOCK 12514G108 70,128 70,128 0.00 2,910 0.0280
2016-02-10 2015-12-31 13F CDW COMMON STOCK 12514G108 0 0 0 0.0000
2015-11-12 2015-09-30 13F CDW COMMON STOCK 12514G108 0 -135,429 -100.00 0 -100.00
2015-08-14 2015-06-30 13F CDW COMMON STOCK 12514G108 135,429 30,225 28.73 4,643 18.50 0.0606
2015-05-11 2015-03-31 13F CDW COMMON STOCK 12514G108 105,204 -380,947 -78.36 3,918 -77.09 0.0510
2015-02-17 2014-12-31 13F CDW COMMON STOCK 12514G108 486,151 -1,090,693 -69.17 17,098 -65.08 0.2257
2014-11-13 2014-09-30 13F CDW COMMON STOCK 12514G108 1,576,844 1,108,564 236.73 48,961 227.98 0.7064
2014-08-14 2014-06-30 13F CDW COMMON STOCK 12514G108 468,280 88,804 23.40 14,928 43.36 0.2198
2014-05-14 2014-03-31 13F CDW COMMON STOCK 12514G108 379,476 379,476 10,413 0.1894
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.