WMB

WILLIAMS COS

11 superinvestors own WMB

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

Investor	Fund	Weight	Shares	Value	Quarter	Activity
Carl Icahn	Icahn Capital Management	4.69%	4,840,724	$164.9M	2007Q3	New
Viking Global Investors	Viking Global Investors	1.46%	6,478,991	$242.7M	2013Q1	Reduced
Mason Hawkins	Longleaf Partners – Southeastern Asset Management	1.28%	2,164,165	$72.3M	2022Q1	Reduced
Bruce Berkowitz	Fairholme Capital	0.45%	263,000	$6.8M	2021Q4	Reduced
David Tepper	Appaloosa Management	0.25%	131,216	$1.9M	2008Q4	Reduced
Donald Smith & Co	Donald Smith & Co	0.04%	0	$989K	2009Q4	New
Dodge & Cox	Dodge & Cox	0.03%	1,000,892	$60.2M	2025Q4	Reduced
Chuck Akre	Akre Capital Management	0.02%	16,140	$926K	2015Q2	Reduced
Bill Nygren	Oakmark Select Fund – Harris Associates	0.01%	0	$7.7M	2011Q4	Reduced
First Eagle Investment Management	First Eagle Investment Management	0.00%	3,215	$193K	2025Q4	Held
Kenneth Fisher	Fisher Asset Management	0.00%	5,677	$341K	2025Q4	Added

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.

STOCK Act disclosures · last 12 months

Congressional trade data coming soon.

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

What Is SEC Form 4?

Understand the insider trade filings behind WMB 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.