Comcast Corporation
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionTranquilli Financial Advisor LLC
Latest Disclosed Ownership27,579 shares
Latest Disclosed Value $ 791,793
Tranquilli Financial Advisor LLC reports 3.42% decrease in ownership of CMCSA / Comcast Corporation

On May 11, 2026 - Tranquilli Financial Advisor LLC filed a 13F-HR form disclosing ownership of 27,579 shares of Comcast Corporation (MX:CMCSA) valued at $791,793 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 28,557 shares of Comcast Corporation. This represents a change in shares of -3.42% 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)
2026-05-11 2026-03-31 13F COMCAST CORP CL A 20030N101 27,579 -978 -3.42 792 -7.27 0.4624
2026-01-27 2025-12-31 13F COMCAST CORP CL A 20030N101 28,557 -111 -0.39 854 -5.22 0.4952
2025-10-30 2025-09-30 13F COMCAST CORP CL A 20030N101 28,668 5,280 22.58 901 7.91 0.5321
2025-08-13 2025-06-30 13F COMCAST CORP CL A 20030N101 23,388 2,833 13.78 835 10.03 0.5167
2025-05-12 2025-03-31 13F COMCAST CORP CL A 20030N101 20,555 266 1.31 758 -0.39 0.4800
2025-01-27 2024-12-31 13F COMCAST CORP CL A 20030N101 20,289 107 0.53 761 -9.73 0.4823
2024-11-14 2024-09-30 13F COMCAST CORP CL A 20030N101 20,182 301 1.51 843 11.21 0.5286
2024-08-13 2024-06-30 13F COMCAST CORP CL A 20030N101 19,881 262 1.34 759 -10.82 0.5081
2024-05-13 2024-03-31 13F COMCAST CORP CL A 20030N101 19,619 3,687 23.14 850 21.78 0.5672
2024-02-14 2023-12-31 13F COMCAST CORP CL A 20030N101 15,932 1,468 10.15 699 8.89 0.4933
2023-11-08 2023-09-30 13F COMCAST CORP CL A 20030N101 14,464 265 1.87 641 8.83 0.4632
2023-07-27 2023-06-30 13F COMCAST CORP CL A 20030N101 14,199 77 0.55 590 10.09 0.4176
2023-05-15 2023-03-31 13F COMCAST CORP CL A 20030N101 14,122 -107 -0.75 535 7.65 0.4003
2023-02-08 2022-12-31 13F COMCAST CORP CL A 20030N101 14,229 2,594 22.29 498 45.75 0.3777
2022-11-03 2022-09-30 13F COMCAST CORP CL A 20030N101 11,635 3,514 43.27 341 6.90 0.2702
2022-08-15 2022-06-30 13F COMCAST CORP CL A 20030N101 8,121 1,397 20.78 319 1.27 0.2444
2022-05-13 2022-03-31 13F COMCAST CORP CL A 20030N101 6,724 77 1.16 315 -5.97 0.2241
2022-02-10 2021-12-31 13F COMCAST CORP CL A 20030N101 6,647 -131 -1.93 335 -11.61 0.2345
2021-11-10 2021-09-30 13F COMCAST CORP CL A 20030N101 6,778 198 3.01 379 1.07 0.2839
2021-08-09 2021-06-30 13F COMCAST CORP CL A 20030N101 6,580 -144 -2.14 375 3.02 0.2816
2021-05-17 2021-03-31 13F COMCAST CORP CL A 20030N101 6,724 1,218 22.12 364 25.95 0.2939
2021-02-25 2020-12-31 13F COMCAST CORP CL A 20030N101 5,506 5,506 289 0.2624
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.