IBM

International Business Machs

$242.39

Closing price as of Mar 31, 2026

7 superinvestors own IBM

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

Investor	Fund	Weight	Shares	Value	Quarter	Activity
David Tepper	Appaloosa Management	1.49%	250,000	$23.6M	2007Q1	Reduced
Kahn Brothers Group	Kahn Brothers Group	0.06%	1,228	$364K	2025Q4	Reduced
David Katz	Matrix Asset Advisors	0.02%	819	$243K	2025Q4	Reduced
Dodge & Cox	Dodge & Cox	0.01%	46,702	$13.8M	2025Q4	Reduced
Mairs & Power	Mairs & Power Growth Fund	0.01%	3,627	$1.1M	2025Q4	Reduced
Kenneth Fisher	Fisher Asset Management	0.00%	20,347	$6.0M	2025Q4	Added
Thomas Russo	Gardner Russo & Quinn	0.00%	750	$222K	2025Q4	New

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 IBM 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.