Compounder

Medline Inc-Cl A

Held by 5 superinvestors (MDLN).

Educational data only — not investment advice. 13F positions are self-reported and can lag up to 45 days.

This quarter1 opened3 added
TickerMDLN
Holder count5
Total value held$1.59B
Largest holderStephen Mandel
External
Ownership overview

Medline Inc-Cl A (MDLN) is held by 5 of the superinvestors tracked on Compounder, with a combined $1.59B in reported 13F value. The largest position belongs to Stephen Mandel, where it makes up 4.2% of the portfolio.

Other notable holders by value include Andreas Halvorsen (1.4% of its book), Henry Ellenbogen (3.3% of its book) and John Armitage (2.2% of its book).

Over the latest quarter, 1 of the tracked filers opened a new position in MDLN, 3 added to existing ones, 0 trimmed, and 0 sold out entirely.

Holder counts and values reflect the most recent SEC Form 13F filings, through the quarter ended 2026-03-31. Source: SEC EDGAR. A 13F shows only long US-listed positions and can lag the real portfolio by up to 45 days, so this is disclosed long ownership, not a complete picture.

Holders over time

Superinvestors holding this security over the last 2 quarters: 4 → 5.

Early quarters may understate holder counts due to data backfill — read the slope with care.

Superinvestors Holding This Security

Sources· SEC EDGAR 13F as of 2026-05-15

Stay Updated

Curated 13F moves and valuation insights, straight to your inbox.