Comcast Corporation
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionSeven Mile Advisory
Latest Disclosed Ownership8,267 shares
Latest Disclosed Value $ 237,346
Seven Mile Advisory reports 6.26% decrease in ownership of CMCSA / Comcast Corporation

On April 14, 2026 - Seven Mile Advisory filed a 13F-HR form disclosing ownership of 8,267 shares of Comcast Corporation (MX:CMCSA) valued at $237,346 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,819 shares of Comcast Corporation. This represents a change in shares of -6.26% 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)
2026-04-14 2026-03-31 13F COMCAST CORP NEW CL A Stock 20030N101 8,267 -552 -6.26 237 -9.89 0.1713
2026-02-13 2025-12-31 13F COMCAST CORP NEW CL A Stock 20030N101 8,819 -11,272 -56.10 264 -58.32 0.0453
2025-11-13 2025-09-30 13F COMCAST CORP NEW CL A Stock 20030N101 20,091 3,757 23.00 631 8.42 0.1019
2025-08-14 2025-06-30 13F COMCAST CORP NEW CL A Stock 20030N101 16,334 -892 -5.18 583 -8.35 0.3504
2025-05-13 2025-03-31 13F COMCAST CORP NEW CL A Stock 20030N101 17,226 20 0.12 636 -1.55 0.4242
2025-02-12 2024-12-31 13F COMCAST CORP NEW CL A Stock 20030N101 17,206 -297 -1.70 646 -11.76 0.4119
2024-11-13 2024-09-30 13F COMCAST CORP NEW CL A Stock 20030N101 17,503 826 4.95 731 11.94 0.4836
2024-08-08 2024-06-30 13F COMCAST CORP NEW CL A Stock 20030N101 16,677 -368 -2.16 653 -11.52 0.4802
2024-05-08 2024-03-31 13F COMCAST CORP NEW CL A Stock 20030N101 17,045 370 2.22 739 0.96 0.5605
2024-02-09 2023-12-31 13F COMCAST CORP NEW CL A Stock 20030N101 16,675 1,210 7.82 731 6.72 0.6341
2023-11-13 2023-09-30 13F COMCAST CORP NEW CL A Stock 20030N101 15,465 913 6.27 686 13.41 0.7201
2023-08-08 2023-06-30 13F COMCAST CORP NEW CL A Stock 20030N101 14,552 14,552 605 0.7047
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.