Which superinvestors hold Mosaic Co/The (MOS)?

Per the latest SEC 13F filings, 2 superinvestors hold Mosaic Co/The (MOS): John Rogers, Lee Ainslie. Combined value held is about $4.6M, with John Rogers the largest holder.

Mosaic Co/The

Held by 2 superinvestors (MOS).

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

This quarter1 opened1 added1 exited

TickerMOS

Holder count2

Total value held$4.6M

Largest holderJohn Rogers

External

Ownership overview

Mosaic Co/The (MOS) is held by 2 of the superinvestors tracked on Compounder, with a combined $4.6M in reported 13F value. The largest position belongs to John Rogers, where it makes up 0.0% of the portfolio.

Other notable holders by value include Lee Ainslie (0.0% of its book).

Over the latest quarter, 1 of the tracked filers opened a new position in MOS, 1 added to existing ones, 0 trimmed, and 1 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 8 quarters: 1 → 2.

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

Superinvestors Holding This Security

Investor	Value	Shares	Weight (prev→now)
John Rogers	$3.8M	148,341	0.0% → 0.0% ▲
Lee Ainslie	$769,055	30,159	New · 0.0%

John Rogers
Value$3.8MWeight (prev→now)0.0% → 0.0% ▲
Lee Ainslie
Value$769,055Weight (prev→now)New · 0.0%

Exited this quarter (1)

Ray Dalio

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

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