Comcast Corporation
US ˙ NasdaqGS ˙ US20030N1019

SecurityCMCSA / Comcast Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership29,461,308 shares
Latest Disclosed Value $ 845,919,177
Dimensional Fund Advisors Lp reports 1.75% increase in ownership of CMCSA / Comcast Corporation

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 29,461,308 shares of Comcast Corporation (US:CMCSA) valued at $845,834,153 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 28,954,211 shares of Comcast Corporation. This represents a change in shares of 1.75% during the quarter. The current value of the position is $701,768,357 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)
2026-05-07 2026-03-31 13F COMCAST CORP CL A 20030N101 29,461,308 507,097 1.75 845,919 -2.26 0.1757
2026-02-12 2025-12-31 13F COMCAST CORP CL A 20030N101 28,954,211 -2,171,743 -6.98 865,461 -11.51 0.1815
2025-11-12 2025-09-30 13F COMCAST CORP CL A 20030N101 31,125,954 -523,778 -1.65 978,035 -13.41 0.2099
2025-08-12 2025-06-30 13F COMCAST CORP CL A 20030N101 31,649,732 -1,951,647 -5.81 1,129,520 -8.90 0.2615
2025-05-13 2025-03-31 13F COMCAST CORP CL A 20030N101 33,601,379 -949,498 -2.75 1,239,879 -4.38 0.3082
2025-02-13 2024-12-31 13F COMCAST CORP CL A 20030N101 34,550,877 -375,416 -1.07 1,296,657 -11.12 0.3114
2024-11-07 2024-09-30 13F COMCAST CORP CL A 20030N101 34,926,293 -3,403,091 -8.88 1,458,839 -2.79 0.3538
2024-08-09 2024-06-30 13F COMCAST CORP CL A 20030N101 38,329,384 1,000,626 2.68 1,500,722 -7.26 0.3920
2024-05-10 2024-03-31 13F COMCAST CORP CL A 20030N101 37,328,758 -357,745 -0.95 1,618,202 -2.08 0.4381
2024-02-07 2023-12-31 13F COMCAST CORP CL A 20030N101 37,686,503 -686,984 -1.79 1,652,642 -2.88 0.4826
2023-11-09 2023-09-30 13F COMCAST CORP CL A 20030N101 38,373,487 -646,118 -1.66 1,701,693 4.96 0.5581
2023-08-09 2023-06-30 13F COMCAST CORP CL A 20030N101 39,019,605 -1,545,833 -3.81 1,621,281 5.44 0.5167
2023-05-12 2023-03-31 13F COMCAST CORP CL A 20030N101 40,565,438 94,856 0.23 1,537,618 108,565.58 0.5179
2023-02-09 2022-12-31 13F COMCAST CORP CL A 20030N101 40,470,582 1,873,972 4.86 1,415 -99.88 0.4181
2022-11-10 2022-09-30 13F COMCAST CORP CL A 20030N101 38,596,610 578,456 1.52 1,132,332 -24.10 0.4347
2022-08-12 2022-06-30 13F COMCAST CORP CL A 20030N101 38,018,154 191,766 0.51 1,491,796 -15.78 0.5351
2022-05-13 2022-03-31 13F COMCAST CORP CLA 20030N101 37,826,388 237,230 0.63 1,771,256 -6.38 0.5456
2022-02-09 2021-12-31 13F COMCAST CORP CLA 20030N101 37,589,158 -1,207,469 -3.11 1,891,901 -12.81 0.5720
2021-11-12 2021-09-30 13F COMCAST CORP CLA 20030N101 38,796,627 -1,405,521 -3.50 2,169,946 -5.33 0.6990
2021-08-12 2021-06-30 13F COMCAST CORP CLA 20030N101 40,202,148 -350,656 -0.86 2,292,182 4.45 0.7257
2021-05-14 2021-03-31 13F COMCAST CORP CLA 20030N101 40,552,804 -886,559 -2.14 2,194,587 1.09 0.7259
2021-03-08 2020-12-31 13F/A-2 COMCAST CORP CLA 20030N101 41,439,363 -4,631,875 -10.05 2,170,995 1.87 0.7840
2021-02-11 2020-12-31 13F COMCAST CORP CLA 20030N101 41,439,363 -4,631,875 2,170,995 784,047.9993
2020-11-12 2020-09-30 13F COMCAST CORP CLA 20030N101 46,071,238 -823,621 -1.76 2,131,179 16.59 0.9037
2020-08-13 2020-06-30 13F COMCAST CORP CLA 20030N101 46,894,859 -1,707,918 -3.51 1,827,927 9.37 0.8034
2020-05-14 2020-03-31 13F COMCAST CORP CLA 20030N101 48,602,777 -1,372,196 -2.75 1,671,363 -25.63 0.8707
2020-02-14 2019-12-31 13F COMCAST CORP CLA 20030N101 49,974,973 -261,255 -0.52 2,247,459 -0.76 0.8191
2019-11-12 2019-09-30 13F COMCAST CORP CLA 20030N101 50,236,228 -1,624,503 -3.13 2,264,568 3.28 0.8800
2019-08-13 2019-06-30 13F COMCAST CORP CLA 20030N101 51,860,731 -712,289 -1.35 2,192,598 4.31 0.8513
2019-08-12 2019-03-31 13F/A-2 COMCAST CORP CLA 20030N101 52,573,020 -1,006,431 -1.88 2,102,066 15.21 0.8372
2019-05-10 2019-03-31 13F COMCAST CORP CLA 20030N101 52,573,020 -1,006,431 2,102,066
2019-02-26 2018-12-31 13F/A-1 COMCAST CORP CLA 20030N101 53,579,451 326,417 0.61 1,824,544 -3.24 0.8265
2019-02-13 2018-12-31 13F COMCAST CORP CLA 20030N101 53,579,451 326,417 1,824,544
2018-11-13 2018-09-30 13F COMCAST CORP CLA 20030N101 53,253,034 -57,141 -0.11 1,885,608 7.81 0.7178
2018-08-10 2018-06-30 13F COMCAST CORP CLA 20030N101 53,310,175 -44,004 -0.08 1,749,070 -4.06 0.6973
2018-05-11 2018-03-31 13F COMCAST CORP CLA 20030N101 53,354,179 -132,343 -0.25 1,823,112 -14.90 0.7598
2018-02-12 2017-12-31 13F COMCAST CORP CLA 20030N101 53,486,522 431,594 0.81 2,142,273 4.95 0.8881
2017-11-13 2017-09-30 13F COMCAST CORP CLA 20030N101 53,054,928 432,491 0.82 2,041,312 -0.33 0.8920
2017-08-11 2017-06-30 13F COMCAST CORP CLA 20030N101 52,622,437 522,139 1.00 2,048,075 4.58 0.9456
2017-05-12 2017-03-31 13F COMCAST CORP CLA 20030N101 52,100,298 25,585,366 96.49 1,958,390 6.95 0.9360
2017-02-09 2016-12-31 13F COMCAST CORP CLA 20030N101 26,514,932 -820,274 -3.00 1,831,071 0.97 0.9146
2016-11-10 2016-09-30 13F COMCAST CORP CLA 20030N101 27,335,206 -112,932 -0.41 1,813,411 1.36 0.9802
2016-08-09 2016-06-30 13F COMCAST CORP CLA 20030N101 27,448,138 -25,971 -0.09 1,789,142 6.62 1.0295
2016-05-13 2016-03-31 13F COMCAST CORP CLA 20030N101 27,474,109 -753,084 -2.67 1,678,055 5.35 1.0044
2016-02-10 2015-12-31 13F COMCAST CORP CLA 20030N101 28,227,193 22,549,538 397.16 1,592,906 390.20 0.9928
2015-11-13 2015-09-30 13F COMCAST CORP CLA 20030N200 5,677,655 -129,221 -2.23 324,947 -6.64 0.2133
2015-11-13 2015-09-30 13F COMCAST CORP CLA 20030N101 22,870,800 666,590 1,300,719 0.8538
2015-08-14 2015-06-30 13F COMCAST CORP CLA 20030N200 5,806,876 -284,880 -4.68 348,069 1.92 0.2131
2015-08-14 2015-06-30 13F COMCAST CORP CLA 20030N101 22,204,210 296,318 1,335,392 0.8177
2015-05-14 2015-03-31 13F COMCAST CORP CLA 20030N200 6,091,756 -546,175 -8.23 341,527 -10.63 0.2157
2015-05-14 2015-03-31 13F COMCAST CORP CLA 20030N101 21,907,892 56,058 1,237,107 0.7812
2015-02-06 2014-12-31 13F COMCAST CORP CLA 20030N200 6,637,931 144,792 2.23 382,154 10.00 0.2510
2015-02-06 2014-12-31 13F COMCAST CORP CLA 20030N101 21,851,834 870,504 1,267,759 0.8326
2014-11-13 2014-09-30 13F COMCAST CORP CLA 20030N200 6,493,139 1,110 0.02 347,404 0.34 0.2462
2014-11-13 2014-09-30 13F COMCAST CORP CLA 20030N101 20,981,330 461,547 1,128,451 0.7996
2014-08-08 2014-06-30 13F COMCAST CORP CLA 20030N200 6,492,029 47,306 0.73 346,231 10.19 0.2407
2014-08-08 2014-06-30 13F COMCAST CORP CLA 20030N101 20,519,783 645,889 1,101,543 0.7657
2014-05-14 2014-03-31 13F COMCAST CORP CLA 20030N200 6,444,723 42,053 0.66 314,221 -1.61 0.2348
2014-05-14 2014-03-31 13F COMCAST CORP CLA 20030N101 19,873,894 132,416 993,989 0.7427
2014-02-12 2013-12-31 13F COMCAST CORP CLA 20030N200 6,402,670 -73,521 -1.14 319,359 13.71 0.2489
2014-02-12 2013-12-31 13F COMCAST CORP CLA 20030N101 19,741,478 -153,955 1,025,854 0.7994
2013-11-13 2013-09-30 13F COMCAST CORP CLA 20030N200 6,476,191 -88,087 -1.34 280,846 7.87 0.2431
2013-11-13 2013-09-30 13F COMCAST CORP CLA 20030N101 19,895,433 117,755 898,178 0.7774
2013-08-15 2013-06-30 13F COMCAST CORP CLA 20030N200 6,564,278 6,564,278 260,361 0.2452
2013-08-15 2013-06-30 13F COMCAST CORP CLA 20030N101 19,777,678 13,213,400 828,092 0.7798
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.