컴캐스트 주식회사
MX ˙ BMV ˙ US20030N1019
SecurityMX:CMCSA / Comcast Corporation
InstitutionProShare Advisors LLC
Latest Disclosed Ownership5,080,239 shares
Latest Disclosed Value $ 145,853,662
ProShare Advisors LLC reports 19.73% decrease in ownership of CMCSA / Comcast Corporation

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 5,080,239 shares of Comcast Corporation (MX:CMCSA) valued at $145,853,662 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 6,328,820 shares of Comcast Corporation. This represents a change in shares of -19.73% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-24 2026-03-31 13F COMCAST CORP CL A 20030N101 5,080,239 -1,248,581 -19.73 145,854 -22.90 0.2160
2026-02-06 2025-12-31 13F COMCAST CORP CL A 20030N101 6,328,820 1,703,935 36.84 189,168 30.18 0.3339
2025-11-06 2025-09-30 13F COMCAST CORP CL A 20030N101 4,624,885 -1,093,633 -19.12 145,314 -28.80 0.3041
2025-08-07 2025-06-30 13F COMCAST CORP CL A 20030N101 5,718,518 216,903 3.94 204,094 0.53 0.4072
2025-05-08 2025-03-31 13F COMCAST CORP CL A 20030N101 5,501,615 609,915 12.47 203,010 10.58 0.4582
2025-02-14 2024-12-31 13F COMCAST CORP CL A 20030N101 4,891,700 765,481 18.55 183,586 6.52 0.4196
2024-11-14 2024-09-30 13F COMCAST CORP CL A 20030N101 4,126,219 212,896 5.44 172,352 12.47 0.4224
2024-08-13 2024-06-30 13F COMCAST CORP CL A 20030N101 3,913,323 -466,732 -10.66 153,246 -19.29 0.4100
2024-05-08 2024-03-31 13F COMCAST CORP CL A 20030N101 4,380,055 730,465 20.01 189,875 18.65 0.5048
2024-02-14 2023-12-31 13F COMCAST CORP CL A 20030N101 3,649,590 -750,556 -17.06 160,035 -17.97 0.4890
2023-11-13 2023-09-30 13F COMCAST CORP CL A 20030N101 4,400,146 535,455 13.86 195,102 21.50 0.6083
2023-08-10 2023-06-30 13F COMCAST CORP CL A 20030N101 3,864,691 -286,384 -6.90 160,578 2.04 0.4657
2023-05-26 2023-03-31 13F/A-1 COMCAST CORP CL A 20030N101 4,151,075 320,868 8.38 157,367 17.49 0.4809
2023-05-12 2023-03-31 13F COMCAST CORP CL A 20030N101 4,151,075 320,868 157,367 0.5004
2023-02-02 2022-12-31 13F COMCAST CORP CL A 20030N101 3,830,207 -528,026 -12.12 133,942 4.78 0.4703
2022-11-07 2022-09-30 13F COMCAST CORP CL A 20030N101 4,358,233 -985,839 -18.45 127,828 -39.04 0.4905
2022-08-01 2022-06-30 13F COMCAST CORP CL A 20030N101 5,344,072 -2,773,094 -34.16 209,702 -44.82 0.6955
2022-05-10 2022-03-31 13F COMCAST CORP CL A 20030N101 8,117,166 -358,990 -4.24 380,046 -10.91 0.8164
2022-02-08 2021-12-31 13F COMCAST CORP CL A 20030N101 8,476,156 3,012,338 55.13 426,606 39.60 0.8372
2021-11-12 2021-09-30 13F COMCAST CORP CL A 20030N101 5,463,818 518,984 10.50 305,591 8.38 0.8586
2021-08-13 2021-06-30 13F COMCAST CORP CL A 20030N101 4,944,834 -304,988 -5.81 281,954 -0.74 0.8242
2021-05-14 2021-03-31 13F COMCAST CORP CL A 20030N101 5,249,822 852,372 19.38 284,068 23.28 0.8932
2021-02-09 2020-12-31 13F COMCAST CORP CL A 20030N101 4,397,450 664,269 17.79 230,426 33.43 0.8571
2020-11-13 2020-09-30 13F COMCAST CORP CL A 20030N101 3,733,181 569,663 18.01 172,697 40.05 0.7982
2020-08-03 2020-06-30 13F COMCAST CORP CL A 20030N101 3,163,518 418,204 15.23 123,314 30.65 0.6587
2020-05-15 2020-03-31 13F COMCAST CORP CL A 20030N101 2,745,314 -1,088,518 -28.39 94,384 -45.26 0.6782
2020-02-12 2019-12-31 13F COMCAST CORP CL A 20030N101 3,833,832 513,347 15.46 172,407 15.18 0.7982
2019-11-12 2019-09-30 13F COMCAST CORP CL A 20030N101 3,320,485 166,411 5.28 149,687 12.25 0.8379
2019-08-13 2019-06-30 13F COMCAST CORP CL A 20030N101 3,154,074 -255,346 -7.49 133,354 -2.17 0.7974
2019-05-15 2019-03-31 13F COMCAST CORP CL A 20030N101 3,409,420 -49,181 -1.42 136,309 15.75 0.8156
2019-02-14 2018-12-31 13F COMCAST CORP CL A 20030N101 3,458,601 812,976 30.73 117,765 25.71 0.8243
2018-11-14 2018-09-30 13F COMCAST CORP CL A 20030N101 2,645,625 -337,488 -11.31 93,682 -4.29 0.6360
2018-08-13 2018-06-30 13F COMCAST CORP CL A 20030N101 2,983,113 -339,459 -10.22 97,876 -13.79 0.6560
2018-05-14 2018-03-31 13F COMCAST CORP CL A 20030N101 3,322,572 551,466 19.90 113,532 2.30 0.7397
2018-02-14 2017-12-31 13F COMCAST CORP CL A 20030N101 2,771,106 767,443 38.30 110,983 43.94 0.7699
2017-11-13 2017-09-30 13F COMCAST CORP CL A 20030N101 2,003,663 205,529 11.43 77,101 10.17 0.7086
2017-08-11 2017-06-30 13F COMCAST CORP CL A 20030N101 1,798,134 251,234 16.24 69,983 20.35 0.6972
2017-05-12 2017-03-31 13F/A-2 COMCAST CORP CL A 20030N101 1,546,900 743,703 92.59 58,148 4.84 0.6082
2017-05-08 2017-03-31 13F/A-1 COMCAST CORP CL A 20030N101 1,546,900 0 58,148 0.6080
2017-04-25 2017-03-31 13F COMCAST CORP CL A 20030N101 1,546,900 58,148
2017-02-13 2016-12-31 13F COMCAST CORP CL A 20030N101 803,197 196,638 32.42 55,461 37.83 0.6141
2016-11-10 2016-09-30 13F COMCAST CORP CL A 20030N101 606,559 -337,307 -35.74 40,239 -34.60 0.5619
2016-08-12 2016-06-30 13F COMCAST CORP CL A 20030N101 943,866 -56,017 -5.60 61,531 0.75 0.7926
2016-05-06 2016-03-31 13F COMCAST CORP CL A 20030N101 999,883 -188,245 -15.84 61,073 -8.91 0.8408
2016-02-05 2015-12-31 13F COMCAST CORP CL A 20030N101 1,188,128 1,017,080 594.62 67,046 584.77 0.8122
2015-11-06 2015-09-30 13F COMCAST CORP CL A SPL 20030N200 171,048 67,030 64.44 9,791 57.03 0.1375
2015-11-06 2015-09-30 13F COMCAST CORP CL A 20030N101 1,004,665 116,630 57,145 0.8026
2015-08-11 2015-06-30 13F COMCAST CORP CL A SPL 20030N200 104,018 -38,044 -26.78 6,235 -21.72 0.0863
2015-08-11 2015-06-30 13F COMCAST CORP CL A 20030N101 888,035 -259,770 53,406 0.7390
2015-05-08 2015-03-31 13F COMCAST CORP CL A SPL 20030N200 142,062 142,062 7,965 0.0938
2015-05-08 2015-03-31 13F COMCAST CORP CL A 20030N101 1,147,805 1,147,805 64,817 0.7635
2015-01-30 2014-12-31 13F COMCAST CORP CL A 20030N101 0 -966,868 -100.00 0 -100.00
2014-11-06 2014-09-30 13F COMCAST CORP CL A 20030N101 966,868 102,349 11.84 51,998 12.05 0.6893
2014-08-08 2014-06-30 13F COMCAST CORP CL A 20030N101 864,519 -109,643 -11.26 46,407 -4.76 0.6012
2014-05-07 2014-03-31 13F COMCAST CORP CL A 20030N101 974,162 76,110 8.48 48,728 4.42 0.6094
2014-02-04 2013-12-31 13F COMCAST CORP CL A 20030N101 898,052 425,085 89.88 46,667 118.54 0.6954
2013-11-07 2013-09-30 13F COMCAST CORP CL A 20030N101 472,967 -263,742 -35.80 21,354 -30.79 0.5068
2013-07-25 2013-06-30 13F COMCAST CORP CL A 20030N101 736,709 736,709 30,853 0.6056
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.