Assetmark, Inc reports 9.94% increase in ownership of CMCS / Comcast Corporation

Comcast Corporation

AT ˙ WBAG ˙ US20030N1019

20,38 € ↓ -0,02 (-0,10%)

2026-06-04
DEL PRIS

Security	AT:CMCS / Comcast Corporation
Institution	Assetmark, Inc
Latest Disclosed Ownership	4,061,076 shares
Latest Disclosed Value	$ 116,593,479

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 4,061,076 shares of Comcast Corporation (AT:CMCS) valued at $102,684,307 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 3,693,832 shares of Comcast Corporation. This represents a change in shares of 9.94% during the quarter. The current value of the position is $82,764,729 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-06	2026-03-31	13F	COMCAST CORP	CL A	20030N101	4,061,076	367,244	9.94	116,593	5.60	0.2378
2026-01-23	2025-12-31	13F	COMCAST CORP	CL A	20030N101	3,693,832	257,182	7.48	110,409	2.25	0.2252
2025-11-06	2025-09-30	13F	COMCAST CORP	CL A	20030N101	3,436,650	271,285	8.57	107,980	-4.42	0.2315
2025-08-04	2025-06-30	13F	COMCAST CORP	CL A	20030N101	3,165,365	438,946	16.10	112,972	12.29	0.2667
2025-05-06	2025-03-31	13F	COMCAST CORP	CL A	20030N101	2,726,419	14,667	0.54	100,605	-1.15	0.2763
2025-02-06	2024-12-31	13F	COMCAST CORP	CL A	20030N101	2,711,752	210,426	8.41	101,772	-2.59	0.2764
2024-11-01	2024-09-30	13F	COMCAST CORP	CL A	20030N101	2,501,326	57,848	2.37	104,480	9.19	0.2992
2024-08-13	2024-06-30	13F	COMCAST CORP	CL A	20030N101	2,443,478	16,652	0.69	95,687	-9.05	0.2959
2024-05-07	2024-03-31	13F	COMCAST CORP	CL A	20030N101	2,426,826	25,124	1.05	105,203	-0.11	0.3420
2024-02-09	2023-12-31	13F	COMCAST CORP	CL A	20030N101	2,401,702	2,086,950	663.05	105,315	654.61	0.3806
2023-10-27	2023-09-30	13F	COMCAST CORP	CL A	20030N101	314,752	-36,182	-10.31	13,956	-4.29	0.0558
2023-08-11	2023-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	350,934	25,420	7.81	14,581	18.16	0.0572
2023-05-05	2023-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	325,514	34,195	11.74	12,340	21.13	0.0510
2023-02-10	2022-12-31	13F	COMCAST CORP	CL A	20030N101	291,319	58,720	25.25	10,187	49.33	0.0442
2022-11-01	2022-09-30	13F	COMCAST CORP	CL A	20030N101	232,599	105,967	83.68	6,822	37.29	0.0319
2022-08-03	2022-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	126,632	53,306	72.70	4,969	44.74	0.0223
2022-05-13	2022-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	73,326	30,895	72.81	3,433	60.72	0.0144
2022-02-14	2021-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	42,431	13,634	47.35	2,136	32.59	0.0088
2021-11-12	2021-09-30	13F	COMCAST CORP NEW CL A	COM	20030N101	28,797	13,278	85.56	1,611	82.03	0.0072
2021-08-16	2021-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	15,519	676	4.55	885	10.21	0.0041
2021-05-14	2021-03-31	13F	COMCAST CORP	CL A	20030N101	14,843	-597	-3.87	803	-0.74	0.0041
2021-02-10	2020-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	15,440	-745	-4.60	809	8.01	0.0045
2020-11-13	2020-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	16,185	439	2.79	749	21.99	0.0048
2020-08-11	2020-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	15,746	-5,168	-24.71	614	-14.60	0.0044
2020-05-12	2020-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	20,914	2,500	13.58	719	-13.16	0.0061
2020-02-11	2019-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	18,414	1,816	10.94	828	10.70	0.0063
2019-11-13	2019-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	16,598	670	4.21	748	11.14	0.0063
2019-08-14	2019-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	15,928	251	1.60	673	7.34	0.0055
2019-05-14	2019-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	15,677	-2,922	-15.71	627	-0.95	0.0057
2019-02-13	2018-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	18,599	-1,190	-6.01	633	-9.70	0.0061
2018-11-13	2018-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	19,789	-680	-3.32	701	4.32	0.0064
2018-08-01	2018-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	20,469	-2,714	-11.71	672	-15.15	0.0066
2018-05-16	2018-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	23,183	-702	-2.94	792	-17.24	0.0082
2018-02-13	2017-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	23,885	2,570	12.06	957	16.57	0.0099
2017-11-08	2017-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	21,315	-55,108	-72.11	821	-72.40	0.0093
2017-08-14	2017-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	76,423	2,052	2.76	2,975	6.44	0.0374
2017-09-15	2017-03-31	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	74,371	55,340	290.79	2,795	112.71	0.0367
2017-05-08	2017-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	74,371	55,340		2,795
2017-09-15	2016-12-31	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	19,031	2,710	16.60	1,314	21.33	0.0193
2017-02-14	2016-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	19,031	2,710		1,314
2017-09-14	2016-09-30	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	16,321	9,678	145.69	1,083	150.12	0.0165
2016-11-04	2016-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	16,321	9,678		1,083
2017-09-14	2016-06-30	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	6,643	-129	-1.90	433	4.59	0.0073
2016-08-08	2016-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	6,643	-129		433
2017-09-14	2016-03-31	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	6,772	-10,455	-60.69	414	-57.41	0.0072
2016-05-13	2016-03-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	6,772	-10,455		414
2017-09-14	2015-12-31	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	17,227	16,685	3,078.41	972	3,035.48	0.0180
2016-02-12	2015-12-31	13F	COMCAST CORP NEW CL A	CL A	20030N101	17,227	4,574		972
2016-01-05	2015-09-30	13F/A-1	COMCAST CORP NEW CL A SPL	CL A	20030N200	542	-30,523	-98.26	31	-98.34	0.0006
2016-01-05	2015-09-30	13F/A-1	COMCAST CORP NEW CL A	CL A	20030N101	12,653	12,410		720		0.0150
2015-11-10	2015-09-30	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	542			31
2015-11-10	2015-09-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	12,653			720
2015-08-13	2015-06-30	13F	COMCAST CORP NEW CL A SPL	COM	20030N200	31,065	2,428	8.48	1,863	16.00	0.0388
2015-08-13	2015-06-30	13F	COMCAST CORP NEW CL A	CL A	20030N101	243	-28,394		15		0.0003
2015-05-12	2015-03-31	13F	COMCAST CORP NEW CL A SPL	COM	20030N200	28,637	28,637		1,606		0.0342
2015-02-03	2014-12-31	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	0	-25,811	-100.00	0	-100.00
2014-11-10	2014-09-30	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	25,811	-2,877	-10.03	1,381	-9.74	0.0319
2014-08-12	2014-06-30	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	28,688	26,801	1,420.30	1,530	1,563.04	0.0326
2014-08-12	2014-06-30	13F	COMCAST CORP NEW CL A	COM	20030N101	45,438	43,551		2,439		0.0519
2014-05-06	2014-03-31	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	1,887	-178	-8.62	92	-10.68	0.0022
2014-02-11	2013-12-31	13F	COMCAST CORP NEW CL A SPL	CL A	20030N200	2,065	2,065		103		0.0024

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.