ALTR

ALTERA CORP

8 superinvestors own ALTR

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

Investor	Fund	Weight	Shares	Value	Quarter	Activity
William Von Mueffling	Cantillon Capital Management	4.26%	5,589,653	$206.5M	2014Q4	Held
First Eagle Investment Management	First Eagle Investment Management	0.52%	4,077,866	$204.2M	2015Q3	Reduced
David Tepper	Appaloosa Management	0.05%	68,000	$2.4M	2010Q4	Held
Jensen Investment Management	Jensen Investment Management	0.02%	1,600	$26.2M	2001Q3	New
Kenneth Fisher	Fisher Asset Management	0.02%	401,612	$38.4M	2024Q3	Added
Christopher Davis	Davis Selected Advisers	0.01%	38,800	$1.9M	2015Q3	Held
Polen Capital Management	Polen Capital Management	0.01%	67,792	$5.1M	2023Q2	Reduced
Mairs & Power	Mairs & Power Growth Fund	0.00%	4,431	$483K	2024Q4	Reduced

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 ALTR 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.