Comcast Corporation
US ˙ NasdaqGS ˙ US20030N1019

SecurityCMCSA / Comcast Corporation
InstitutionRobertson Stephens Wealth Management, LLC
Latest Disclosed Ownership52,649 shares
Latest Disclosed Value $ 1,511,543
Robertson Stephens Wealth Management, LLC reports 2.88% increase in ownership of CMCSA / Comcast Corporation

On April 28, 2026 - Robertson Stephens Wealth Management, LLC filed a 13F-HR form disclosing ownership of 52,649 shares of Comcast Corporation (US:CMCSA) valued at $1,511,553 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 51,175 shares of Comcast Corporation. This represents a change in shares of 2.88% during the quarter. The current value of the position is $1,254,099 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)
2026-04-28 2026-03-31 13F COMCAST CORP CL A 20030N101 52,649 1,474 2.88 1,512 -1.18 0.0423
2026-02-02 2025-12-31 13F COMCAST CORP CL A 20030N101 51,175 19,812 63.17 1,530 55.23 0.0399
2025-11-12 2025-09-30 13F COMCAST CORP CL A 20030N101 31,363 -6,491 -17.15 985 -27.09 0.0298
2025-07-24 2025-06-30 13F COMCAST CORP CL A 20030N101 37,854 -373 -0.98 1,351 -4.18 0.0430
2025-04-17 2025-03-31 13F COMCAST CORP CL A 20030N101 38,227 -2,771 -6.76 1,411 -8.32 0.0485
2025-01-27 2024-12-31 13F COMCAST CORP CL A 20030N101 40,998 -1,564 -3.67 1,539 -13.45 0.0545
2024-11-12 2024-09-30 13F COMCAST CORP CL A 20030N101 42,562 -17,740 -29.42 1,778 -24.74 0.0644
2024-08-13 2024-06-30 13F COMCAST CORP CL A 20030N101 60,302 -183 -0.30 2,361 -9.95 0.1189
2024-05-15 2024-03-31 13F COMCAST CORP CL A 20030N101 60,485 1,414 2.39 2,622 1.24 0.1390
2024-02-06 2023-12-31 13F COMCAST CORP CL A 20030N101 59,071 -12,511 -17.48 2,590 -18.37 0.1574
2023-11-13 2023-09-30 13F COMCAST CORP CL A 20030N101 71,582 -3,828 -5.08 3,174 1.28 0.2141
2023-08-11 2023-06-30 13F COMCAST CORP CL A 20030N101 75,410 -8,288 -9.90 3,133 -1.26 0.2217
2023-05-11 2023-03-31 13F COMCAST CORP CL A 20030N101 83,698 -179 -0.21 3,173 8.18 0.2442
2023-02-14 2022-12-31 13F COMCAST CORP CL A 20030N101 83,877 -2,439 -2.83 2,933 15.88 0.2856
2022-11-14 2022-09-30 13F Comcast Corp New CL A CL A 20030N101 86,316 -4,286 -4.73 2,531 -28.80 0.2641
2022-08-12 2022-06-30 13F Comcast Corp New CL A CL A 20030N101 90,602 -1,651 -1.79 3,555 -17.69 0.3354
2022-05-16 2022-03-31 13F Comcast Corp New CL A CL A 20030N101 92,253 3,969 4.50 4,319 -2.79 0.3627
2022-02-14 2021-12-31 13F Comcast Corp New CL A CL A 20030N101 88,284 78,424 795.38 4,443 706.35 0.3738
2021-11-10 2021-09-30 13F Comcast Corp New CL A CL A 20030N101 9,860 -1,064 -9.74 551 -11.41 0.0622
2021-08-17 2021-06-30 13F Comcast Corp New CL A CL A 20030N101 10,924 1,158 11.86 622 17.80 0.0747
2021-05-07 2021-03-31 13F Comcast Corp New CL A CL A 20030N101 9,766 9,766 528 0.0845
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.