Comcast Corporation
AT ˙ WBAG ˙ US20030N1019
20,38 € ↓ -0,02 (-0,10%)
2026-06-04
DEL PRIS
SecurityAT:CMCS / Comcast Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership1,549,851 shares
Latest Disclosed Value $ 44,496,222
Asset Management One Co., Ltd. reports 5.18% decrease in ownership of CMCS / Comcast Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 1,549,851 shares of Comcast Corporation (AT:CMCS) valued at $39,187,983 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,634,491 shares of Comcast Corporation. This represents a change in shares of -5.18% during the quarter. The current value of the position is $31,585,963 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.

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)
2026-05-08 2026-03-31 13F COMCAST CORP CL A 20030N101 1,549,851 -84,640 -5.18 44,496 -8.86 0.1312
2026-01-27 2025-12-31 13F COMCAST CORP CL A 20030N101 1,634,491 -36,816 -2.20 48,823 -7.03 0.1357
2025-10-22 2025-09-30 13F COMCAST CORP CL A 20030N101 1,671,307 4,055 0.24 52,512 -11.75 0.1521
2025-07-31 2025-06-30 13F COMCAST CORP CL A 20030N101 1,667,252 68,223 4.27 59,504 0.85 0.1866
2025-04-23 2025-03-31 13F COMCAST CORP CL A 20030N101 1,599,029 80,328 5.29 59,004 2.43 0.2041
2025-01-30 2024-12-31 13F COMCAST CORP CL A 20030N101 1,518,701 7,511 0.50 57,604 -8.74 0.1979
2024-10-30 2024-09-30 13F COMCAST CORP CL A 20030N101 1,511,190 -10,435 -0.69 63,122 5.93 0.2246
2024-07-18 2024-06-30 13F COMCAST CORP CL A 20030N101 1,521,625 -76,680 -4.80 59,587 -14.00 0.2280
2024-05-02 2024-03-31 13F COMCAST CORP CL A 20030N101 1,598,305 -123,419 -7.17 69,287 -8.79 0.2670
2024-01-24 2023-12-31 13F COMCAST CORP CL A 20030N101 1,721,724 -103,228 -5.66 75,962 -6.12 0.3058
2023-10-19 2023-09-30 13F COMCAST CORP CL A 20030N101 1,824,952 -25,710 -1.39 80,918 5.23 0.3603
2023-07-31 2023-06-30 13F COMCAST CORP CL A 20030N101 1,850,662 -44,019 -2.32 76,895 7.06 0.3255
2023-04-25 2023-03-31 13F COMCAST CORP CL A 20030N101 1,894,681 -5,323 -0.28 71,827 7.86 0.3255
2023-02-06 2022-12-31 13F COMCAST CORP CL A 20030N101 1,900,004 -27,719 -1.44 66,590 17.78 0.3245
2022-11-04 2022-09-30 13F COMCAST CORP CL A 20030N101 1,927,723 -40,719 -2.07 56,540 -26.80 0.2877
2022-07-29 2022-06-30 13F COMCAST CORP CL A 20030N101 1,968,442 -26,777 -1.34 77,241 -17.32 0.3627
2022-05-13 2022-03-31 13F COMCAST CORP CL A 20030N101 1,995,219 -132,349 -6.22 93,417 -13.19 0.3647
2022-02-09 2021-12-31 13F COMCAST CORP CL A 20030N101 2,127,568 -20,945 -0.97 107,614 -10.45 0.3749
2021-11-02 2021-09-30 13F COMCAST CORP CL A 20030N101 2,148,513 -53,300 -2.42 120,166 -4.28 0.4607
2021-08-03 2021-06-30 13F COMCAST CORP CL A 20030N101 2,201,813 -40,674 -1.81 125,545 3.46 0.4672
2021-05-14 2021-03-31 13F COMCAST CORP CL A 20030N101 2,242,487 -44,407 -1.94 121,344 2.88 0.4819
2021-02-12 2020-12-31 13F COMCAST CORP CL A 20030N101 2,286,894 -18,219 -0.79 117,948 10.61 0.4858
2020-11-13 2020-09-30 13F COMCAST CORP CL A 20030N101 2,305,113 -101,775 -4.23 106,634 13.65 0.4902
2020-08-14 2020-06-30 13F COMCAST CORP CL A 20030N101 2,406,888 -42,611 -1.74 93,824 11.41 0.4614
2020-05-14 2020-03-31 13F COMCAST CORP CL A 20030N101 2,449,499 -128,957 -5.00 84,212 -27.37 0.4917
2020-02-14 2019-12-31 13F COMCAST CORP CL A 20030N101 2,578,456 -55,343 -2.10 115,953 -2.34 0.5226
2019-11-14 2019-09-30 13F COMCAST CORP CL A 20030N101 2,633,799 -74,516 -2.75 118,735 3.69 0.5720
2019-08-14 2019-06-30 13F COMCAST CORP CL A 20030N101 2,708,315 241,130 9.77 114,507 16.09 0.5624
2019-05-15 2019-03-31 13F COMCAST CORP CL A 20030N101 2,467,185 -5,237,613 -67.98 98,638 -62.44 0.5334
2019-02-13 2018-12-31 13F COMCAST CORP CL A 20030N101 7,704,798 86,930 1.14 262,641 -2.60 0.6260
2018-11-14 2018-09-30 13F COMCAST CORP CL A 20030N101 7,617,868 9,659 0.13 269,639 8.06 0.5534
2018-08-14 2018-06-30 13F COMCAST CORP CL A 20030N101 7,608,209 -28,627 -0.37 249,519 -4.38 0.5453
2018-05-14 2018-03-31 13F COMCAST CORP CL A 20030N101 7,636,836 33,813 0.44 260,949 -14.34 0.5876
2018-02-14 2017-12-31 13F COMCAST CORP CL A 20030N101 7,603,023 -77,981 -1.02 304,638 3.20 0.6721
2017-11-14 2017-09-30 13F COMCAST CORP CL A 20030N101 7,681,004 -48,801 -0.63 295,187 -1.87 0.6930
2017-08-14 2017-06-30 13F COMCAST CORP CL A 20030N101 7,729,805 -33,421 -0.43 300,814 3.10 0.7678
2017-05-11 2017-03-31 13F COMCAST CORP- CL A 20030N101 7,763,226 3,536,213 83.66 291,774 -0.18 0.7661
2017-05-02 2016-12-31 13F/A-1 COMCAST CORP- CL A 20030N101 4,227,013 3,750,161 786.44 292,301 825.00 0.7471
2017-02-13 2016-12-31 13F COMCAST CORP- CL A 20030N101 4,451,975 307,835
2016-11-07 2016-09-30 13F COMCAST CORP- Com 20030N101 476,852 -51,751 -9.79 31,600 -7.03 0.4694
2016-08-03 2016-06-30 13F COMCAST CORP- Com 20030N101 528,603 -50,355 -8.70 33,988 -3.59 0.5100
2016-05-05 2016-03-31 13F COMCAST CORP- Com 20030N101 578,958 21,249 3.81 35,255 10.58 0.5146
2016-01-28 2015-12-31 13F COMCAST CORP- Com 20030N101 557,709 518,088 1,307.61 31,882 1,341.32 0.4759
2015-11-12 2015-09-30 13F COMCAST CORP-SPECIAL CL A Com 20030N200 39,621 2,355 6.32 2,212 -0.67 0.0337
2015-11-12 2015-09-30 13F COMCAST CORP- Com 20030N101 581,309 141,945 32,468 0.4941
2015-08-06 2015-06-30 13F COMCAST CORP-SPECIAL CL A Com 20030N200 37,266 -3,112 -7.71 2,227 -1.89 0.0309
2015-08-06 2015-06-30 13F COMCAST CORP- Com 20030N101 439,364 -96,389 26,367 0.3653
2015-05-11 2015-03-31 13F COMCAST CORP-SPECIAL CL A COM 20030N200 40,378 0 0.00 2,270 -3.69 0.0280
2015-05-11 2015-03-31 13F COMCAST CORP- Com 20030N101 535,753 2,376 30,299 0.3741
2015-02-09 2014-12-31 13F COMCAST CORP-SPECIAL CL A COM 20030N200 40,378 -6,219 -13.35 2,357 -6.06 0.0306
2015-02-09 2014-12-31 13F COMCAST CORP- Com 20030N101 533,377 102,552 31,219 0.4051
2014-11-05 2014-09-30 13F COMCAST CORP-SPECIAL CL A COM 20030N200 46,597 0 0.00 2,509 0.36 0.0346
2014-11-05 2014-09-30 13F COMCAST CORP- Com 20030N101 430,825 449 23,302 0.3218
2014-08-12 2014-06-30 13F COMCAST CORP-SPECIAL CL A COM 20030N200 46,597 -7,813 -14.36 2,500 -5.09 0.0373
2014-08-12 2014-06-30 13F COMCAST CORP- Com 20030N101 430,376 -361,727 23,249 0.3470
2014-05-05 2014-03-31 13F COMCAST CORP-SPECIAL CL A COM 20030N200 54,410 0 0.00 2,634 -2.52 0.0415
2014-05-05 2014-03-31 13F COMCAST CORP- Com 20030N101 792,103 -12,851 39,453 0.6217
2014-02-05 2013-12-31 13F/A-1 COMCAST CORP-SPECIAL CL A COM 20030N200 54,410 -16,157 -22.90 2,702 -11.09 0.0419
2014-02-05 2013-12-31 13F/A-1 COMCAST CORP- COM 20030N101 804,954 -91,064 41,766 0.6473
2014-01-29 2013-12-31 13F COMCAST CORP-SPECIAL CL A COM 20030N200 54,410 2,702
2014-01-29 2013-12-31 13F COMCAST CORP-CL A COM 20030N101 804,954 41,766
2014-02-05 2013-09-30 13F/A-1 COMCAST CORP-SPECIAL CL A Com 20030N200 70,567 7,783 12.40 3,039 25.53 0.0457
2014-02-05 2013-09-30 13F/A-1 COMCAST CORP- COM 20030N101 896,018 172,772 40,284 0.6062
2013-11-06 2013-09-30 13F COMCAST CORP-SPECIAL CL A Com 20030N200 70,567 3,039
2013-11-06 2013-09-30 13F COMCAST CORP- Com 20030N101 896,018 40,284
2014-02-12 2013-06-30 13F/A-1 COMCAST CORP-SPECIAL CL A Com 20030N200 62,784 62,784 2,421 0.0393
2014-02-12 2013-06-30 13F/A-1 COMCAST CORP- COM 20030N101 723,246 660,462 29,663 0.4817
2013-08-05 2013-06-30 13F COMCAST CORP-SPECIAL CL A Com 20030N200 62,784 2,421
2013-08-05 2013-06-30 13F COMCAST CORP- Com 20030N101 723,246 29,663
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.