CMCSA

COMCAST CORP NEW

$28.38

Closing price as of Mar 31, 2026

29 superinvestors own CMCSA

Based on latest 13F filings — data is 45–90 days delayed

Investor	Fund	Weight	Shares	Value	Quarter	Activity
Stephen Mandel	Lone Pine Capital	6.10%	32,595,590	$1.3B	2017Q3	Added
John Armitage	Egerton Capital	4.33%	16,274,833	$910.3M	2021Q3	Added
Viking Global Investors	Viking Global Investors	2.41%	19,818,985	$743.8M	2024Q4	Added
Chris Hohn	TCI Fund Management	2.26%	11,897,380	$406.5M	2018Q1	Reduced
Valley Forge Capital Management	Valley Forge Capital Management	1.97%	326,690	$5.9M	2010Q3	Reduced
First Eagle Investment Management	First Eagle Investment Management	1.90%	36,171,945	$1.1B	2025Q4	Added
Dodge & Cox	Dodge & Cox	1.82%	112,967,514	$3.4B	2025Q4	Held
Hillman Capital Management	Hillman Value Fund	1.71%	90,861	$2.7M	2025Q4	Reduced
Mario Cibelli	Marathon Partners	1.69%	147,500	$4.8M	2018Q2	Added
David Katz	Matrix Asset Advisors	1.61%	600,301	$17.9M	2025Q4	Reduced
Chase Coleman	Tiger Global Management	1.59%	5,020,000	$201.1M	2017Q4	Reduced
Kopernik Global Investors	Kopernik Global Investors	1.55%	649,213	$19.4M	2025Q4	New
Thomas Gayner	Markel Group	1.13%	904,800	$21.9M	2007Q3	Added
Bill Nygren	Oakmark Select Fund – Harris Associates	1.04%	27,458,428	$820.7M	2025Q4	Added
Thomas Russo	Gardner Russo & Quinn	0.74%	2,300,197	$68.8M	2025Q4	New
Daniel Loeb	Third Point	0.70%	2,000,000	$100.7M	2021Q4	New
David Tepper	Appaloosa Management	0.68%	902,888	$48.5M	2014Q2	Held
Yacktman Asset Management	Yacktman Asset Management	0.49%	1,161,500	$34.7M	2025Q4	New
Wallace Weitz	Weitz Investment Management	0.15%	85,000	$2.5M	2025Q4	New
Tweedy Browne Co.	Tweedy Browne Value Fund	0.08%	31,496	$941K	2025Q4	Held
Kahn Brothers Group	Kahn Brothers Group	0.04%	7,025	$210K	2025Q4	Added
Meridian / ArrowMark	Meridian Contrarian Fund	0.02%	25,000	$747K	2025Q4	Held
Glenn Greenberg	Brave Warrior Advisors	0.02%	31,094	$929K	2025Q4	Held
Bruce Berkowitz	Fairholme Capital	0.02%	139,018	$2.4M	2010Q2	Reduced
Christopher Davis	Davis Selected Advisers	0.01%	0	$7.9M	2005Q4	Held
Mason Hawkins	Longleaf Partners – Southeastern Asset Management	0.01%	9,531	$333K	2022Q4	Held
Richard Pzena	Pzena Investment Management	0.00%	5,135	$201K	2024Q2	Held
Kenneth Fisher	Fisher Asset Management	0.00%	47,690	$1.4M	2025Q4	Reduced
Mairs & Power	Mairs & Power Growth Fund	0.00%	7,600	$239K	2025Q3	Added

Recent insider activity — CMCSA

Open-market purchases (P) and sales (S) from SEC Form 4 filings · last 12 months

No open-market insider trades in the last 12 months.

Form 4 filings for option exercises and other transaction types are excluded.

Congressional trades — CMCSA

STOCK Act disclosures · last 12 months

Congressional trade data coming soon.

We are sourcing STOCK Act disclosures and will display them here shortly.

Learn more

What Is SEC Form 4?

Understand the insider trade filings behind CMCSA activity.

What Is a 13F Filing?

How superinvestors disclose their quarterly holdings.

Insider Cluster Buying

Why multiple insiders buying together is a strong signal.

Superinvestor Consensus

The most widely held stocks across all tracked institutions.