컴캐스트 주식회사
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionHerold Advisors, Inc.
Latest Disclosed Ownership19,753 shares
Latest Disclosed Value $ 567,098
Herold Advisors, Inc. reports 19.69% decrease in ownership of CMCSA / Comcast Corporation

On May 14, 2026 - Herold Advisors, Inc. filed a 13F-HR form disclosing ownership of 19,753 shares of Comcast Corporation (MX:CMCSA) valued at $567,098 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,595 shares of Comcast Corporation. This represents a change in shares of -19.69% 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 COMCAST CORP CL A 20030N101 19,753 -4,842 -19.69 567 -22.86 0.1245
2026-02-17 2025-12-31 13F COMCAST CORP CL A 20030N101 24,595 -2,755 -10.07 735 -14.44 0.1643
2025-11-13 2025-09-30 13F COMCAST CORP CL A 20030N101 27,350 -13,878 -33.66 859 -41.60 0.1991
2025-08-14 2025-06-30 13F COMCAST CORP CL A 20030N101 41,228 -5,033 -10.88 1,471 -13.83 0.3085
2025-05-13 2025-03-31 13F COMCAST CORP CL A 20030N101 46,261 -2,026 -4.20 1,707 -5.79 0.3749
2025-02-14 2024-12-31 13F COMCAST CORP CL A 20030N101 48,287 -4,742 -8.94 1,812 -18.19 0.3949
2024-11-14 2024-09-30 13F COMCAST CORP CL A 20030N101 53,029 1,859 3.63 2,215 10.58 0.4810
2024-07-24 2024-06-30 13F COMCAST CORP CL A 20030N101 51,170 1,584 3.19 2,004 -6.79 0.4635
2024-05-10 2024-03-31 13F COMCAST CORP CL A 20030N101 49,586 277 0.56 2,150 -0.60 0.5200
2024-02-02 2023-12-31 13F COMCAST CORP CL A 20030N101 49,309 5 0.01 2,162 -1.10 0.5982
2023-11-08 2023-09-30 13F COMCAST CORP CL A 20030N101 49,304 1,916 4.04 2,186 11.08 0.6650
2023-07-17 2023-06-30 13F COMCAST CORP CL A 20030N101 47,388 2,837 6.37 1,969 16.59 0.6027
2023-04-19 2023-03-31 13F COMCAST CORP CL A 20030N101 44,551 15,835 55.14 1,689 68.13 0.5837
2023-02-14 2022-12-31 13F COMCAST CORP CL A 20030N101 28,716 255 0.90 1,004 20.38 0.4252
2022-11-08 2022-09-30 13F COMCAST CORP NEW CL A CL A 20030N101 28,461 3 0.01 834 -25.27 0.4009
2022-07-15 2022-06-30 13F COMCAST CORP NEW CL A CL A 20030N101 28,458 0 0.00 1,116 -99.92 0.4974
2022-05-09 2022-03-31 13F COMCAST CORP NEW CL A CL A 20030N101 28,458 500 1.79 1,332,403 94,598.15 0.4739
2022-01-20 2021-12-31 13F COMCAST CORP CL A CL A 20030N101 27,958 -6,454 -18.76 1,407 -26.87 0.5465
2021-11-03 2021-09-30 13F COMCAST CORP CL A CL A 20030N101 34,412 34,412 1,924 0.7487
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.