Comcast Corporation
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionEmpirical Finance, LLC
Latest Disclosed Ownership152,664 shares
Latest Disclosed Value $ 4,382,983
Empirical Finance, LLC reports 0.27% decrease in ownership of CMCSA / Comcast Corporation

On May 14, 2026 - Empirical Finance, LLC filed a 13F-HR/A form disclosing ownership of 152,664 shares of Comcast Corporation (MX:CMCSA) valued at $4,382,983 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 153,083 shares of Comcast Corporation. This represents a change in shares of -0.27% 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.

Upgrade to unlock premium data and export to Excel .

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/A-1 COMCAST CORP CL A 20030N101 152,664 -419 -0.27 4,383 -4.22 0.2059
2026-05-14 2026-03-31 13F COMCAST CORP CL A 20030N101 152,664 -419 4,383 0.2059
2026-02-12 2025-12-31 13F COMCAST CORP CL A 20030N101 153,083 -6,276 -3.94 4,576 -8.63 0.2183
2025-11-13 2025-09-30 13F COMCAST CORP CL A 20030N101 159,359 1,288 0.81 5,007 -11.24 0.2384
2025-08-11 2025-06-30 13F COMCAST CORP CL A 20030N101 158,071 -13,337 -7.78 5,642 -10.80 0.2953
2025-05-07 2025-03-31 13F COMCAST CORP CL A 20030N101 171,408 1,991 1.18 6,325 -0.53 0.3819
2025-01-28 2024-12-31 13F COMCAST CORP CL A 20030N101 169,417 10,892 6.87 6,358 -3.97 0.3678
2024-11-06 2024-09-30 13F COMCAST CORP CL A 20030N101 158,525 2,311 1.48 6,622 8.24 0.3861
2024-07-30 2024-06-30 13F COMCAST CORP CL A 20030N101 156,214 1,194 0.77 6,117 -8.97 0.3821
2024-05-06 2024-03-31 13F COMCAST CORP CL A 20030N101 155,020 4,795 3.19 6,720 2.02 0.4124
2024-02-14 2023-12-31 13F COMCAST CORP CL A 20030N101 150,225 -421 -0.28 6,587 -1.38 0.4593
2023-11-02 2023-09-30 13F COMCAST CORP CL A 20030N101 150,646 11,862 8.55 6,680 15.83 0.4906
2023-07-27 2023-06-30 13F COMCAST CORP CL A 20030N101 138,784 13,960 11.18 5,766 21.85 0.4466
2023-04-05 2023-03-31 13F COMCAST CORP CL A 20030N101 124,824 4,876 4.07 4,732 12.83 0.4432
2023-02-21 2022-12-31 13F/A-1 COMCAST CORP CL A 20030N101 119,948 8,886 8.00 4,195 28.77 0.4343
2023-01-24 2022-12-31 13F COMCAST CORP CL A 20030N101 119,948 8,886 4 0.4343
2022-11-04 2022-09-30 13F COMCAST CORP CL A 20030N101 111,062 17,790 19.07 3,257 -11.01 0.3863
2022-08-01 2022-06-30 13F COMCAST CORP CL A 20030N101 93,272 4,866 5.50 3,660 -11.57 0.4665
2022-04-21 2022-03-31 13F COMCAST CORP CL A 20030N101 88,406 18,180 25.89 4,139 17.12 0.4636
2022-02-04 2021-12-31 13F COMCAST CORP CL A 20030N101 70,226 12,463 21.58 3,534 9.38 0.4173
2021-11-12 2021-09-30 13F COMCAST CORP CL A 20030N101 57,763 3,189 5.84 3,231 3.82 0.4870
2021-08-10 2021-06-30 13F/A-1 COMCAST CORP CL A 20030N101 54,574 7,968 17.10 3,112 27.44 0.5073
2021-08-04 2021-06-30 13F COMCAST CORP CL A 20030N101 46,606 0 2,442 0.4295
2021-05-13 2021-03-31 13F COMCAST CORP CL A 20030N101 46,606 0 0.00 2,442 0.00 0.4295
2021-02-02 2020-12-31 13F COMCAST CORP CL A 20030N101 46,606 8,038 20.84 2,442 36.88 0.4295
2020-10-28 2020-09-30 13F/A-1 COMCAST CORP CL A 20030N101 38,568 8,024 26.27 1,784 49.79 0.3823
2020-10-26 2020-09-30 13F COMCAST CORP CL A 20030N101 11,178 -19,366 504 140,742.4162
2020-07-20 2020-06-30 13F/A-1 COMCAST CORP CL A 20030N101 30,544 3,719 13.86 1,191 29.18 0.3047
2020-07-20 2020-06-30 13F COMCAST CORP CL A 20030N101 25,595 1,191
2020-04-16 2020-03-31 13F COMCAST CORP CL A 20030N101 26,825 9,403 53.97 922 17.75 0.2866
2020-01-27 2019-12-31 13F COMCAST CORP CL A 20030N101 17,422 6,244 55.86 783 55.36 0.1904
2019-10-30 2019-09-30 13F COMCAST CORP CL A 20030N101 11,178 200 1.82 504 8.62 0.1407
2019-07-09 2019-06-30 13F COMCAST CORP CL A 20030N101 10,978 144 1.33 464 7.16 0.1272
2019-05-10 2019-03-31 13F COMCAST CORP CL A 20030N101 10,834 2,473 29.58 433 51.93 0.1102
2019-01-22 2018-12-31 13F COMCAST CORP CL A 20030N101 8,361 -877 -9.49 285 -12.84 0.0845
2018-10-18 2018-09-30 13F COMCAST CORP CL A 20030N101 9,238 1,001 12.15 327 21.11 0.0814
2018-07-09 2018-06-30 13F COMCAST CORP CL A 20030N101 8,237 -2,597 -23.97 270 -37.64 0.0684
2019-05-10 2018-03-31 13F COMCAST CORP CL A 20030N101 10,834 10,834 433 0.0906
2018-02-01 2017-12-31 13F COMCAST CORP CL A 20030N101 0 -5,174 -100.00 0 -100.00
2017-10-31 2017-09-30 13F COMCAST CORP CL A 20030N101 5,174 0 0.00 200 -0.99 0.0690
2017-08-10 2017-06-30 13F COMCAST CORP CL A 20030N101 5,174 5,174 202 0.0777
2017-05-11 2017-03-31 13F COMCAST CORP CL A 20030N101 0 -1,149 -100.00 0 -100.00
2017-02-13 2016-12-31 13F COMCAST CORP CL A 20030N101 1,149 1,149 80 0.0540
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.