Comcast Corporation
AT ˙ WBAG ˙ US20030N1019
20,38 € ↓ -0,02 (-0,10%)
2026-06-04
DEL PRIS
SecurityAT:CMCS / Comcast Corporation
InstitutionMan Group plc
Latest Disclosed Ownership2,627,384 shares
Latest Disclosed Value $ 75,432,195
Man Group plc ownership in CMCS / Comcast Corporation

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 2,627,384 shares of Comcast Corporation (AT:CMCS) valued at $66,433,404 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,457,314 shares of Comcast Corporation. This represents a change in shares of -64.77% during the quarter. The current value of the position is $53,546,086 USD.

Man Group plc has a history of taking positions in derivatives of the underlying security (CMCS) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

AT:CMCS / Comcast Corporation Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F COMCAST CORP CL A 20030N101 2,627,384 -4,829,930 -64.77 75,432 -66.16 0.0842
2026-02-17 2025-12-31 13F COMCAST CORP CL A 20030N101 7,457,314 -928,363 -11.07 222,899 -15.40 0.3789
2025-11-14 2025-09-30 13F COMCAST CORP CL A 20030N101 8,385,677 936,324 12.57 263,478 -0.90 0.4582
2025-08-14 2025-06-30 13F COMCAST CORP CL A 20030N101 7,449,353 1,723,564 30.10 265,867 25.84 0.5065
2025-05-15 2025-03-31 13F COMCAST CORP CL A 20030N101 5,725,789 3,427,034 149.08 211,282 144.90 0.5357
2025-02-14 2024-12-31 13F COMCAST CORP CL A 20030N101 2,298,755 2,039,287 785.95 86,272 696.09 0.2270
2024-11-14 2024-09-30 13F COMCAST CORP CL A 20030N101 259,468 -89,036 -25.55 10,838 -20.59 0.0282
2024-08-14 2024-06-30 13F COMCAST CORP CL A 20030N101 348,504 140,841 67.82 13,647 51.60 0.0345
2024-05-15 2024-03-31 13F COMCAST CORP CL A 20030N101 207,663 -82,788 -28.50 9,002 -29.32 0.0227
2024-02-14 2023-12-31 13F COMCAST CORP CL A 20030N101 290,451 12,736 29.79 0.0355
2023-11-14 2023-09-30 13F COMCAST CORP CL A 20030N101 9,813 39.29 0.0304
2023-08-14 2023-06-30 13F COMCAST CORP CL A 20030N101 169,564 7,045 -0.48 0.0217
2023-05-15 2023-03-31 13F COMCAST CORP CL A 20030N101 7,080 -29.42 0.0252
2023-02-14 2022-12-31 13F COMCAST CORP CL A 20030N101 286,842 -322,471 -52.92 10,031 -43.88 0.0360
2022-11-14 2022-09-30 13F COMCAST CORP CL A 20030N101 609,313 17,871 -47.56 0.0829
2022-08-15 2022-06-30 13F COMCAST CORP CL A 20030N101 34,082 1.03 0.1444
2022-05-16 2022-03-31 13F COMCAST CORP CL A 20030N101 720,564 180,802 33.50 33,736 24.19 0.1174
2022-02-14 2021-12-31 13F COMCAST CORP CL A 20030N101 539,762 -182,251 -25.24 27,165 -32.73 0.0873
2021-11-15 2021-09-30 13F COMCAST CORP CL A 20030N101 722,013 114,957 18.94 40,383 16.66 0.1416
2021-08-16 2021-06-30 13F COMCAST CORP CL A 20030N101 607,056 379,745 167.06 34,615 181.45 0.1219
2021-05-17 2021-03-31 13F COMCAST CORP CL A 20030N101 227,311 24,689 12.18 12,299 15.84 0.0541
2021-02-16 2020-12-31 13F COMCAST CORP CL A 20030N101 202,622 -225,662 -52.69 10,617 -46.41 0.0466
2020-11-16 2020-09-30 13F COMCAST CORP CL A 20030N101 428,284 98,805 29.99 19,813 54.28 0.0780
2020-08-14 2020-06-30 13F COMCAST CORP CL A 20030N101 329,479 -368,119 -52.77 12,842 -46.45 0.0648
2020-05-15 2020-03-31 13F COMCAST CORP CL A 20030N101 697,598 -407,566 -36.88 23,983 -51.74 0.1554
2020-02-18 2019-12-31 13F COMCAST CORP CL A 20030N101 1,105,164 83,057 8.13 49,699 7.86 0.1634
2019-11-14 2019-09-30 13F COMCAST CORP CL A 20030N101 1,022,107 -431,291 -29.67 46,077 -25.02 0.1711
2019-08-14 2019-06-30 13F COMCAST CORP CL A 20030N101 1,453,398 512,136 54.41 61,449 63.29 0.2221
2019-05-15 2019-03-31 13F COMCAST CORP CL A 20030N101 941,262 -429,159 -31.32 37,631 -19.36 0.1428
2019-02-14 2018-12-31 13F COMCAST CORP CL A 20030N101 1,370,421 -347,960 -20.25 46,664 -23.31 0.2076
2018-11-14 2018-09-30 13F COMCAST CORP CL A 20030N101 1,718,381 215,282 14.32 60,847 23.38 0.2222
2018-08-14 2018-06-30 13F COMCAST CORP CL A 20030N101 1,503,099 -1,221,503 -44.83 49,316 -47.03 0.2029
2018-05-15 2018-03-31 13F COMCAST CORP CL A 20030N101 2,724,602 2,724,602 93,100 0.4261
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-02-14 2024-12-31 13F COMCAST CORP CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F COMCAST CORP CL A Call 35,500 -63.66 1,483 -61.25 n/a n/a n/a
2024-08-14 2024-06-30 13F COMCAST CORP CL A Call 97,700 -4.31 3,826 -13.58 n/a n/a n/a
2024-05-15 2024-03-31 13F COMCAST CORP CL A Call 102,100 -2.39 4,426 -3.49 n/a n/a n/a
2024-02-14 2023-12-31 13F COMCAST CORP CL A Call 104,600 4,587 n/a n/a n/a
2021-11-15 2021-09-30 13F COMCAST CORP CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-16 2021-06-30 13F COMCAST CORP CL A Call 300 17 n/a n/a n/a
2018-11-14 2018-09-30 13F COMCAST CORP CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F COMCAST CORP CL A Call 600,000 19,686 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-02-14 2024-12-31 13F COMCAST CORP CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F COMCAST CORP CL A Put 35,500 -63.66 1,483 -61.25 n/a n/a n/a
2024-08-14 2024-06-30 13F COMCAST CORP CL A Put 97,700 -4.40 3,826 -13.66 n/a n/a n/a
2024-05-15 2024-03-31 13F COMCAST CORP CL A Put 102,200 -2.39 4,430 -3.51 n/a n/a n/a
2024-02-14 2023-12-31 13F COMCAST CORP CL A Put 104,700 4,591 n/a n/a n/a
2021-11-15 2021-09-30 13F COMCAST CORP CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-16 2021-06-30 13F COMCAST CORP CL A Put 300 17 n/a n/a n/a
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.