Comcast Corporation
US ˙ NasdaqGS ˙ US20030N1019

SecurityCMCSA / Comcast Corporation
InstitutionEastern Bank
Latest Disclosed Ownership10,942 shares
Latest Disclosed Value $ 314,145
Eastern Bank reports 19.67% decrease in ownership of CMCSA / Comcast Corporation

On April 7, 2026 - Eastern Bank filed a 13F-HR form disclosing ownership of 10,942 shares of Comcast Corporation (US:CMCSA) valued at $314,145 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 13,622 shares of Comcast Corporation. This represents a change in shares of -19.67% during the quarter. The current value of the position is $257,356 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)
2026-04-07 2026-03-31 13F COMCAST CORP CL A 20030N101 10,942 -2,680 -19.67 314 -22.85 0.0049
2026-01-14 2025-12-31 13F COMCAST CORP CL A 20030N101 13,622 -420 -2.99 407 -7.71 0.0070
2025-10-27 2025-09-30 13F COMCAST CORP CL A 20030N101 14,042 158 1.14 441 -10.91 0.0078
2025-07-24 2025-06-30 13F COMCAST CORP CL A 20030N101 13,884 -297 -2.09 496 -5.35 0.0094
2025-05-08 2025-03-31 13F COMCAST CORP CL A 20030N101 14,181 -2,152 -13.18 523 -14.54 0.0102
2025-01-13 2024-12-31 13F Comcast CL A 20030N101 16,333 -962 -5.56 613 -15.24 0.0114
2024-10-21 2024-09-30 13F Comcast CL A 20030N101 17,295 6,963 67.39 722 78.71 0.0129
2024-07-23 2024-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 10,332 -1,345 -11.52 405 -20.16 0.0163
2024-05-09 2024-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 11,677 -114 -0.97 506 -2.13 0.0211
2024-01-25 2023-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 11,791 -32 -0.27 517 -1.34 0.0235
2023-10-17 2023-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 11,823 -647 -5.19 524 1.16 0.0260
2023-07-19 2023-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 12,470 -671 -5.11 518 4.02 0.0246
2023-04-19 2023-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 13,141 -1,194 -8.33 498 -0.60 0.0250
2023-01-24 2022-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 14,335 -1,943 -11.94 501 5.03 0.0268
2022-10-19 2022-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 16,278 -2,415 -12.92 477 -35.01 0.0272
2022-07-20 2022-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 18,693 -1,362 -6.79 734 -21.83 0.0390
2022-04-21 2022-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 20,055 -262,585 -92.90 939 -93.40 0.0435
2022-01-26 2021-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 282,640 5,189 1.87 14,225 -8.33 0.6204
2021-10-19 2021-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 277,451 -960 -0.34 15,518 -2.25 0.7495
2021-07-20 2021-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 278,411 -104 -0.04 15,875 5.34 0.7783
2021-04-27 2021-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 278,515 -7,491 -2.62 15,070 0.55 0.8142
2021-01-20 2020-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 286,006 476 0.17 14,987 13.46 0.8391
2020-10-30 2020-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 285,530 452 0.16 13,209 18.87 0.8087
2020-09-01 2020-06-30 13F/A-1 COMCAST CORP NEW CL A COMMON STOCKS 20030N101 285,078 -7,127 -2.44 11,112 10.61 0.7228
2020-07-21 2020-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 285,078 -7,127 11,112 272,868.9846
2020-04-27 2020-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 292,205 -23,191 -7.35 10,046 -29.17 0.7479
2020-02-04 2019-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 315,396 58 0.02 14,184 -0.23 0.8238
2019-11-04 2019-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 315,338 5,606 1.81 14,216 8.56 0.8867
2019-07-24 2019-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 309,732 2,528 0.82 13,095 6.62 0.8330
2019-04-18 2019-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 307,204 -33,652 -9.87 12,282 5.82 0.8233
2019-01-18 2018-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 340,856 123 0.04 11,606 -3.80 0.8668
2018-10-16 2018-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 340,733 -4,870 -1.41 12,065 6.39 0.7871
2018-07-18 2018-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 345,603 -1,593 -0.46 11,340 -4.42 0.7748
2018-04-09 2018-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 347,196 -25,616 -6.87 11,864 -20.54 0.8297
2018-01-22 2017-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 372,812 11,643 3.22 14,931 7.44 1.0007
2017-10-24 2017-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 361,169 7,774 2.20 13,897 1.05 0.9841
2017-07-26 2017-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 353,395 1,564 0.44 13,753 3.98 1.0122
2017-04-17 2017-03-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 351,831 164,373 87.69 13,226 2.17 0.9981
2017-01-18 2016-12-31 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 187,458 1,227 0.66 12,945 4.78 1.0073
2016-10-17 2016-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 186,231 181,530 3,861.52 12,355 5,727.83 0.9931
2013-10-18 2013-09-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 4,701 -1,123 -19.28 212 -12.76 0.0194
2013-08-09 2013-06-30 13F COMCAST CORP NEW CL A COMMON STOCKS 20030N101 5,824 5,824 243 0.0226
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.