# THE MOSAIC COMPANY (MOS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 61945C103
Page URL: https://superinvestorclub.com/stock/MOS
Last updated: 2026-08-29T13:48:52.454Z

## Summary

As of the most recent 13F filing period, THE MOSAIC COMPANY (MOS) is held by 3 tracked superinvestors with an aggregate position value of $166.6M representing 0772354712360716000 shares.

## Top institutional holders (3)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Donald Smith & Co](https://superinvestorclub.com/manager/17) | Donald Smith & Co., Inc. | 7723547 | $163.7M | 2.90% | 2026-06-30 |
| 2 | [John Rogers](https://superinvestorclub.com/manager/76) | Ariel Investments | 123607 | $2.6M | 0.03% | 2026-06-30 |
| 3 | [Mairs & Power](https://superinvestorclub.com/manager/92) | Mairs & Power | 16000 | $339,040 | 0.00% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-09-30: 1 holders, $11.5M aggregate, 0324119 shares
- 2023-12-31: 1 holders, $21.4M aggregate, 0597709 shares
- 2024-03-31: 2 holders, $37.0M aggregate, 0112803411061 shares
- 2024-06-30: 2 holders, $64.0M aggregate, 02083233132678 shares
- 2024-09-30: 3 holders, $78.5M aggregate, 0275158014104039000 shares
- 2024-12-31: 3 holders, $81.3M aggregate, 0313812514104030280 shares
- 2025-03-31: 4 holders, $93.1M aggregate, 0314158414104013521030280 shares
- 2025-06-30: 4 holders, $122.7M aggregate, 0294564423692514834031280 shares
- 2025-09-30: 4 holders, $136.2M aggregate, 036930761483405754029500 shares
- 2025-12-31: 4 holders, $116.2M aggregate, 046224051470372846624000 shares
- 2026-03-31: 4 holders, $122.8M aggregate, 046176911483413015920000 shares
- 2026-06-30: 3 holders, $166.6M aggregate, 0772354712360716000 shares

## Recent congressional trades (6)

- 2026-04-14: Gilbert Cisneros (D-CA) sale $1,001 - $15,000
- 2026-01-09: Gilbert Cisneros (D-CA) purchase $1,001 - $15,000
- 2026-01-09: Gil Cisneros (Democrat-CA) purchase $1,001 - $15,000
- 2025-11-10: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-09-23: Valerie Hoyle (D-OR) sale $1,001 - $15,000
- 2025-04-23: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "THE MOSAIC COMPANY (MOS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/MOS), aggregating SEC 13F, Form 4, and congressional disclosures."