CMCSA Comcast Corporation

Ownership history in BOSTON RESEARCH & MANAGEMENT INC  ·  52 quarters on record

AI Ownership Summary

BOSTON RESEARCH & MANAGEMENT INC reported Comcast Corporation (CMCSA) in 52 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 1.46% in 2023 Q4. The latest visible filing shows CMCSA at 0.84% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this CMCSA ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was BOSTON RESEARCH & MANAGEMENT INC's position in Comcast Corporation, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

CMCSA was reported at 0.84% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.46% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How BOSTON RESEARCH & MANAGEMENT INC held CMCSA — position size vs. price
% of Fund (quarterly)    CMCSA price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 10 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED 122,976 +26,005 +26.8% 0.84% $4K 2026-04-10 $27.93
2025 Q4 REDUCED 96,971 -42,895 -30.7% 0.67% $2.9M 2026-02-11 $32.11
2025 Q3 ADDED 139,866 +2,851 +2.1% 0.97% $4.4M 2025-11-12 $25.54
2025 Q2 ADDED 137,015 +4,441 +3.3% 1.17% $4.9M 2025-08-12 $29.09
2025 Q1 ADDED 132,574 +751 +0.6% 1.21% $4.9M 2025-05-12 $31.17
2024 Q4 REDUCED 131,823 -155 -0.1% 1.21% $4.9M 2025-02-12 $31.05
2024 Q3 ADDED 131,978 +2,510 +1.9% 1.29% $5.5M 2024-11-12 $38.86
2024 Q2 ADDED 129,468 +2,780 +2.2% 1.28% $5.1M 2024-08-13 $34.26
2024 Q1 ADDED 126,688 +1,485 +1.2% 1.36% $5.5M 2024-05-14 $34.49
2023 Q4 ADDED 125,203 +4,332 +3.6% 1.46% $5.5M 2024-02-12 $36.74
42 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About BOSTON RESEARCH & MANAGEMENT INC and CMCSA

These are the practical questions this page is built to answer before you even open the full history table.

How long has BOSTON RESEARCH & MANAGEMENT INC reported owning CMCSA?

BOSTON RESEARCH & MANAGEMENT INC reported CMCSA across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported CMCSA position in BOSTON RESEARCH & MANAGEMENT INC's portfolio?

The largest reported portfolio weight for CMCSA was 1.46% in 2023 Q4.

What is the latest reported CMCSA position on this page?

The most recent filing on this page is 2026 Q1, when BOSTON RESEARCH & MANAGEMENT INC reported 122,976 shares, equal to 0.84% of portfolio, with an estimated market value of $4K.

What does the chart on this CMCSA ownership page compare?

The chart compares BOSTON RESEARCH & MANAGEMENT INC's quarterly CMCSA portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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