컴캐스트 주식회사
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionRockland Trust Co
Latest Disclosed Ownership16,922 shares
Latest Disclosed Value $ 485,831
Rockland Trust Co reports 12.53% decrease in ownership of CMCSA / Comcast Corporation

On April 16, 2026 - Rockland Trust Co filed a 13F-HR form disclosing ownership of 16,922 shares of Comcast Corporation (MX:CMCSA) valued at $485,831 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 19,347 shares of Comcast Corporation. This represents a change in shares of -12.53% 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)
2026-04-16 2026-03-31 13F COMCAST CORP CL A 20030N101 16,922 -2,425 -12.53 486 -16.09 0.0181
2026-01-15 2025-12-31 13F COMCAST CORP CL A 20030N101 19,347 4,759 32.62 578 26.20 0.0228
2025-11-06 2025-09-30 13F COMCAST CORP CL A 20030N101 14,588 -1,775 -10.85 458 -21.44 0.0188
2025-07-10 2025-06-30 13F COMCAST CORP CL A 20030N101 16,363 -1,935 -10.57 584 -13.63 0.0284
2025-04-16 2025-03-31 13F COMCAST CORP CL A 20030N101 18,298 -4,625 -20.18 675 -21.51 0.0339
2025-01-14 2024-12-31 13F Comcast CL A 20030N101 22,923 -1,958 -7.87 860 -17.23 0.0437
2024-10-03 2024-09-30 13F Comcast CL A 20030N101 24,881 -8,077 -24.51 1,039 -19.46 0.0511
2024-07-23 2024-06-30 13F Comcast CL A 20030N101 32,958 -456 -1.36 1,291 -10.91 0.0680
2024-04-11 2024-03-31 13F Comcast CL A 20030N101 33,414 -276 -0.82 1,448 -1.96 0.0763
2024-01-11 2023-12-31 13F Comcast CL A 20030N101 33,690 -576 -1.68 1,477 -2.76 0.0809
2023-10-26 2023-09-30 13F Comcast CL A 20030N101 34,266 -585 -1.68 1,519 4.90 0.0914
2023-07-27 2023-06-30 13F Comcast CL A 20030N101 34,851 194 0.56 1,448 10.28 0.0865
2023-04-24 2023-03-31 13F Comcast CL A 20030N101 34,657 -5,486 -13.67 1,314 131,200.00 0.0826
2023-01-24 2022-12-31 13F Comcast CL A 20030N101 40,143 4,142 11.51 1 -99.91 0.0891
2022-10-19 2022-09-30 13F Comcast CL A 20030N101 36,001 154 0.43 1,056 -24.95 0.0753
2022-07-13 2022-06-30 13F Comcast CL A 20030N101 35,847 225 0.63 1,407 -15.65 0.0973
2022-04-18 2022-03-31 13F Comcast CL A 20030N101 35,622 2,016 6.00 1,668 -1.36 0.1061
2022-01-27 2021-12-31 13F Comcast CL A 20030N101 33,606 2,414 7.74 1,691 -3.09 0.1077
2021-10-25 2021-09-30 13F Comcast CL A 20030N101 31,192 2,918 10.32 1,745 8.25 0.1217
2021-07-21 2021-06-30 13F Comcast CL A 20030N101 28,274 -409 -1.43 1,612 3.87 0.1114
2021-04-22 2021-03-31 13F Comcast CL A 20030N101 28,683 1,538 5.67 1,552 9.14 0.1118
2021-01-04 2020-12-31 13F Comcast CL A 20030N101 27,145 -287 -1.05 1,422 11.97 0.1105
2020-10-08 2020-09-30 13F Comcast CL A 20030N101 27,432 510 1.89 1,270 20.95 0.1091
2020-07-09 2020-06-30 13F Comcast CL A 20030N101 26,922 -6,568 -19.61 1,050 -8.77 0.0944
2020-04-16 2020-03-31 13F Comcast CL A 20030N101 33,490 -4,879 -12.72 1,151 -33.28 0.1172
2020-01-06 2019-12-31 13F Comcast CL A 20030N101 38,369 -438 -1.13 1,725 0.94 0.1421
2019-10-11 2019-09-30 13F Comcast CL A 20030N101 38,807 2,210 6.04 1,709 10.47 0.1554
2019-07-05 2019-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 36,597 -1,949 -5.06 1,547 0.39 0.1533
2019-04-08 2019-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 38,546 -340,004 -89.82 1,541 -88.04 0.1634
2019-01-16 2018-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 378,550 -9,548 -2.46 12,890 -6.21 1.5811
2018-10-05 2018-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 388,098 -6,115 -1.55 13,743 6.25 1.6791
2018-07-06 2018-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 394,213 32,544 9.00 12,934 4.66 1.6707
2018-04-10 2018-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 361,669 -83 -0.02 12,358 -14.70 1.6334
2018-01-11 2017-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 361,752 12,635 3.62 14,488 7.85 1.8649
2017-11-01 2017-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 349,117 964 0.28 13,434 -0.86 2.0087
2017-08-01 2017-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 348,153 -15,484 -4.26 13,550 -0.87 2.1215
2017-04-20 2017-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 363,637 176,845 94.67 13,669 5.98 2.1571
2017-01-30 2016-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 186,792 -6,810 -3.52 12,898 0.42 2.0661
2016-10-27 2016-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 193,602 -442 -0.23 12,844 1.53 2.2251
2016-07-20 2016-06-30 13F/A-1 COMCAST CORP-CL A COMMON STOCK 20030N101 194,044 2,695 1.41 12,650 8.23 2.1882
2016-07-20 2016-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 191,349 11,688
2016-05-04 2016-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 191,349 -6,293 -3.18 11,688 4.80 2.0979
2016-01-28 2015-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 197,642 -23,679 -10.70 11,153 -11.41 1.9648
2015-10-28 2015-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 221,321 3,898 1.79 12,589 -3.72 2.4733
2015-07-22 2015-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 217,423 879 0.41 13,076 6.93 2.5959
2015-04-24 2015-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 216,544 216,544 0.00 12,228 2.5858
2015-02-04 2014-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 0 -191,349 -100.00 0 -100.00
2014-11-05 2014-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 191,349 5,382 2.89 10,291 3.09 2.2659
2014-08-04 2014-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 185,967 -232 -0.12 9,983 7.15 2.2669
2014-05-02 2014-03-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 186,199 -10,205 -5.20 9,317 -8.71 2.1900
2014-02-04 2013-12-31 13F COMCAST CORP-CL A COMMON STOCK 20030N101 196,404 1,448 0.74 10,206 16.04 2.4564
2013-11-12 2013-09-30 13F/A-1 COMCAST CORP-CL A COMMON STOCK 20030N101 194,956 193 0.10 8,795 8.17 2.3237
2013-10-21 2013-09-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 194,956 8,795
2013-08-12 2013-06-30 13F COMCAST CORP-CL A COMMON STOCK 20030N101 194,763 194,763 8,131 2.2517
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.