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Columbia Asset Management

Position in CMCSA — Comcast Corp

CIK 1585047 Ann Arbor, MI

Position in CMCSA

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$762,277
+$7,951 QoQ
Shares Held
31,050
+18.2% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
#911
of 1,874 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CMCSA Over Time

Shares Held

Position Value (USD)

Derivatives in CMCSA

reported options exposure · as of Dec 31, 2024
CallValue
$280,711
CallShares
303,028
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Telecom Services

Communication Services · as of Jun 30, 2026

Columbia Asset Management holds $8,052,337 across 3 Telecom Services names. CMCSA ranks #3 (9.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CMCSA
Comcast Corp
This page
31,050 $762,277

All Filings in CMCSA

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25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $762,277 31,050
2026-03-31 $754,326 26,274
2025-12-31 $683,553 22,869
2025-09-30 $465,926 14,829
2025-06-30 $509,974 14,289
2025-03-31 $477,448 12,939
2024-12-31 $484,099 12,899
2024-12-31 $280,711 284,000
2024-09-30 $572,624 13,709
2024-06-30 $425,825 10,874
2024-03-31 $462,890 10,678
2023-12-31 $468,229 10,678
2023-09-30 $439,099 9,903
2023-06-30 $431,621 10,388
2023-03-31 $338,839 8,938
2022-09-30 $147,793 5,039
2022-06-30 $223,236 5,689
2021-12-31 $508,080 10,095
2021-09-30 $600,856 10,743
2021-06-30 $459,181 8,053
2021-03-31 $1,199,835 22,174
2020-12-31 $1,088,558 20,774
2020-09-30 $880,050 19,024
2020-06-30 $725,183 18,604
2020-03-31 $589,754 17,154