OSK

OSHKOSH CORP

10 superinvestors own OSK

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

Investor	Fund	Weight	Shares	Value	Quarter	Activity
Alex Roepers	Atlantic Investment Management	11.69%	136,300	$20.1M	2026Q1	Reduced
Greenhaven Associates	Greenhaven Associates	6.14%	2,531,005	$372.6M	2026Q1	Held
Valley Forge Capital Management	Valley Forge Capital Management	0.98%	106,540	$2.9M	2010Q3	Reduced
FPA / Steven Romick	FPA Crescent Fund – First Pacific Advisors	0.88%	877,000	$44.3M	2006Q3	Added
David Einhorn	Greenlight Capital	0.25%	216,300	$6.7M	2009Q3	Held
Richard Pzena	Pzena Investment Management	0.21%	438,856	$64.6M	2026Q1	Reduced
Mairs & Power	Mairs & Power Growth Fund	0.05%	33,183	$4.9M	2026Q1	Reduced
Lee Ainslie	Maverick Capital	0.01%	8,497	$1.3M	2026Q1	New
Meridian / ArrowMark	Meridian Contrarian Fund	0.00%	2,400	$246K	2021Q3	Held
Bill Nygren	Oakmark Select Fund – Harris Associates	0.00%	1,575	$232K	2026Q1	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 OSK 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.