Comcast Corporation
US ˙ NasdaqGS ˙ US20030N1019

SecurityCMCSA / Comcast Corporation
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership345,083 shares
Latest Disclosed Value $ 9,895,884
Wiley Bros.-aintree Capital, Llc reports 8.38% decrease in ownership of CMCSA / Comcast Corporation

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 345,083 shares of Comcast Corporation (US:CMCSA) valued at $9,907,333 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 376,658 shares of Comcast Corporation. This represents a change in shares of -8.38% during the quarter. The current value of the position is $8,116,352 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)
2026-05-15 2026-03-31 13F COMCAST CORP CL A 20030N101 345,083 -31,575 -8.38 9,896 -8.99 0.0489
2026-02-17 2025-12-31 13F COMCAST CORP CL A 20030N101 376,658 -176,217 -31.87 10,873 -37.03 0.0569
2025-11-14 2025-09-30 13F COMCAST CORP CL A 20030N101 552,875 -54,858 -9.03 17,267 -20.35 0.1106
2025-08-14 2025-06-30 13F COMCAST CORP CL A 20030N101 607,733 -389,867 -39.08 21,679 -40.76 0.1663
2025-05-15 2025-03-31 13F COMCAST CORP CL A 20030N101 997,600 164,857 19.80 36,591 16.67 0.3888
2025-02-14 2024-12-31 13F COMCAST CORP CL A 20030N101 832,743 332,608 66.50 31,365 49.69 0.3761
2024-11-14 2024-09-30 13F COMCAST CORP CL A 20030N101 500,135 262,396 110.37 20,952 125.19 0.4042
2024-07-24 2024-06-30 13F COMCAST CORP CL A 20030N101 237,739 199,141 515.94 9,304 451.84 0.4073
2024-04-11 2024-03-31 13F COMCAST CORP CL A 20030N101 38,598 19,807 105.41 1,686 106.87 0.2323
2024-01-09 2023-12-31 13F COMCAST CORP CL A 20030N101 18,791 13,761 273.58 816 265.47 0.1986
2023-10-06 2023-09-30 13F COMCAST CORP CL A 20030N101 5,030 5,030 223 0.1041
2020-04-03 2020-03-31 13F COMCAST CORP CL A 20030N101 0 -4,835 -100.00 0 -100.00
2020-01-10 2019-12-31 13F COMCAST CORP CL A 20030N101 4,835 0 0.00 217 -0.46 0.2582
2019-10-10 2019-09-30 13F/A-1 COMCAST CORP CL A 20030N101 4,835 0 0.00 218 6.86 0.2827
2019-07-10 2019-06-30 13F COMCAST CORP CL A 20030N101 4,835 -1,083 -18.30 204 -13.92 0.2816
2019-04-08 2019-03-31 13F COMCAST CORP CL A 20030N101 5,918 0 0.00 237 17.33 0.3393
2019-02-06 2018-12-31 13F COMCAST CORP CL A 20030N101 5,918 5,918 202 0.3389
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.