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CMCSA logoCMCSA

Comcast · Communication

Tracked owners
1
Sum of conviction
4%
Sector
Communication
HoldLens Signal
Full buy/sell dossier for CMCSA
Verdict · Multi-quarter trend · Activity · News · Ownership
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Smart money activity

Every tracked buy, add, trim, and exit on CMCSA by the best portfolio managers in the world. Ranked by manager quality inside each quarter.

Smart money activity
8 buys · 2 sells across tracked 13F filings
Net signal: Heavy accumulation
Q4 2025(2 moves)
Portfolio manager% portfolio
Joel GreenblattElite
Gotham Asset Management
0.20%
Bill Nygren
Oakmark Funds
1.00%
Q2 2025(1 move)
Portfolio manager% portfolio
Joel GreenblattElite
Gotham Asset Management
0.20%
Q1 2025(2 moves)
Portfolio manager% portfolio
Joel GreenblattElite
Gotham Asset Management
0.60%
Andreas HalvorsenElite
Viking Global Investors
0.00%
Q4 2024(2 moves)
Portfolio manager% portfolio
Andreas HalvorsenElite
Viking Global Investors
2.40%
Joel GreenblattElite
Gotham Asset Management
0.60%
Q3 2024(2 moves)
Portfolio manager% portfolio
Andreas HalvorsenElite
Viking Global Investors
0.50%
Joel GreenblattElite
Gotham Asset Management
0.60%

Insider activity

SEC Form 4 filings — when CEOs, CFOs, and 10%+ owners buy or sell their own stock.

Insider activity (Form 4)
2 buys · 0 sells from corporate insiders
Net: INSIDER BUYING
InsiderValue
BREEN EDWARD D
Director
$0
BREEN EDWARD D
Director
$0

Latest news

Recent headlines for CMCSA.

Hedge funds holding CMCSA

1 superinvestor hold Comcast as a top position. Sorted by % of portfolio.

Manager% Portfolio
Bill Nygren fund logoBill Nygren
Cable + content, dividend payer.
3.8%
Dividend tax by country

What will you keep of every $100 in CMCSA dividend?

Withholding rate
0%
Domestic (no cross-border)
Tax withheld
$0.00
You'd receive
$1000.00
Of $1000 gross
Source & treaty reference
Treaty: Domestic — no cross-border withholding
Citation: IRC §§ 1441–1446 (withholding applies to foreign persons; US residents not subject to WHT on US-source dividends)
U.S. residents receiving U.S.-source dividends: no cross-border withholding; taxed on return at qualified (0/15/20%) or ordinary rates.

Estimates for educational purposes only. Tax rules change; consult a qualified tax professional for your specific situation. Dividend-tax treatment depends on holding period, account type (taxable vs. retirement), investor type (individual vs. pension vs. mutual fund), limitation-on-benefits tests, and other factors not modeled here.

Full dividend-tax rules for United States investors →

Get alerts when they buy or sell CMCSA

One email per 13F filing — you'll know within hours if any tracked manager moves on CMCSA.

Related smart-money signals

Derived from the same 13F filings
Same sector · Communication
Top conviction in this sector
  1. 1.DISThe Walt Disney Company
    0
  2. 2.SPOTSpotify
    0
  3. 3.NFLXNetflix
    -1
  4. 4.WBDWarner Bros. Discovery
    -3
  5. 5.LBTYKLiberty Global Class C
    -8
All Communication names →

Frequently asked questions

Who owns CMCSA?

1 tracked superinvestors hold Comcast (CMCSA) as a top position based on the latest SEC 13F filings. Largest tracked holder: Bill Nygren at 3.8% of portfolio. Full ranking by % of portfolio shown in the table below.

How many hedge funds hold CMCSA?

1 of HoldLens's tracked superinvestors hold CMCSA according to the latest SEC 13F filings. The sum of conviction across those holders is 4% (sum of each manager's % of portfolio in CMCSA).

Who is the biggest hedge-fund holder of CMCSA?

Among HoldLens's tracked superinvestors, Bill Nygren holds the largest CMCSA position at 3.8% of portfolio. Cable + content, dividend payer.

What sector is CMCSA?

Comcast (CMCSA) is classified as Communication. Smart-money activity, insider trades (SEC Form 4), buybacks, short interest, congressional trades, and ETF ownership for CMCSA are all aggregated on this page.

Data sourced from SEC 13F filings. CMCSA ownership reflects publicly disclosed long positions only. Not investment advice.