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Round Rock Advisors LLC

Position in CMCSA — Comcast Corp

CIK 1846991 WILTON, CT

Position in CMCSA

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$346,646
-$212,308 QoQ
Shares Held
14,120
-27.5% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#1,212
of 1,874 holders
Holding Since
Dec 2020
15 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CMCSA Over Time

Shares Held

Position Value (USD)

Position in Telecom Services

Communication Services · as of Jun 30, 2026

Round Rock Advisors LLC holds $1,239,938 across 3 Telecom Services names. CMCSA ranks #3 (28.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CMCSA
Comcast Corp
This page
14,120 $346,646

All Filings in CMCSA

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $346,646 14,120
2026-03-31 $558,954 19,469
2025-12-31 $584,139 19,543
2025-09-30 $975,715 31,054
2025-06-30 $1,415,250 39,654
2025-03-31 $1,465,813 39,724
2024-12-31 $1,496,509 39,875
2024-09-30 $1,977,473 47,342
2024-06-30 $1,885,748 48,155
2024-03-31 $1,985,125 45,793
2023-12-31 $1,923,654 43,869
2021-09-30 $207,164 3,704
2021-06-30 $211,201 3,704
2021-03-31 $251,611 4,650
2020-12-31 $243,398 4,645