BRKA

BERKSHIRE HATHAWAY INC DEL

12 superinvestors own BRKA

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

Investor	Fund	Weight	Shares	Value	Quarter	Activity
Norbert Lou	Punch Card Management	36.38%	145	$109.4M	2025Q4	Held
Josh Tarasoff	Greenlea Lane Capital	14.76%	67	$50.6M	2025Q4	Held
Thomas Russo	Gardner Russo & Quinn	12.12%	1,488	$1.1B	2025Q4	New
Tweedy Browne Co.	Tweedy Browne Value Fund	8.78%	144	$108.7M	2025Q4	Held
Christopher Davis	Davis Selected Advisers	3.20%	943	$711.8M	2025Q4	Reduced
First Eagle Investment Management	First Eagle Investment Management	0.73%	553	$417.4M	2025Q4	Reduced
Francois Rochon	Giverny Capital	0.28%	11	$8.3M	2025Q4	Held
Bruce Berkowitz	Fairholme Capital	0.05%	1	$755K	2025Q4	Held
Mairs & Power	Mairs & Power Growth Fund	0.04%	5	$3.8M	2025Q4	Held
Prem Watsa	Fairfax Financial Holdings	0.04%	1	$753K	2025Q4	New
Dodge & Cox	Dodge & Cox	0.00%	4	$3.0M	2025Q4	Held
Kenneth Fisher	Fisher Asset Management	0.00%	2	$1.5M	2025Q4	Held

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 BRKA 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.