The Mosaic Company
US ˙ NYSE ˙ US61945C1036

SecurityMOS / The Mosaic Company
InstitutionFox Run Management, L.l.c.
Latest Disclosed Ownership47,388 shares
Latest Disclosed Value $ 1,184,700
Fox Run Management, L.l.c. reports 12.04% increase in ownership of MOS / The Mosaic Company

On May 12, 2026 - Fox Run Management, L.l.c. filed a 13F-HR form disclosing ownership of 47,388 shares of The Mosaic Company (US:MOS) valued at $1,208,394 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 42,295 shares of The Mosaic Company. This represents a change in shares of 12.04% during the quarter. The current value of the position is $1,104,140 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F MOSAIC COM 61945C103 47,388 5,093 12.04 1,185 16.31 0.2073
2026-02-11 2025-12-31 13F MOSAIC CO COM 61945C103 42,295 7,745 22.42 1,019 -15.03 0.1573
2025-11-12 2025-09-30 13F MOSAIC CO COM 61945C103 34,550 24,062 229.42 1,198 213.61 0.1868
2025-08-06 2025-06-30 13F MOSAIC CO COM 61945C103 10,488 -21,681 -67.40 383 -55.99 0.0637
2025-05-13 2025-03-31 13F MOSAIC CO COM 61945C103 32,169 -24,612 -43.35 869 -37.78 0.1346
2025-02-11 2024-12-31 13F MOSAIC CO COM 61945C103 56,781 39,826 234.89 1,396 207.27 0.2534
2024-11-12 2024-09-30 13F MOSAIC CO COM 61945C103 16,955 16,955 454 0.1010
2024-08-13 2024-06-30 13F MOSAIC CO COM 61945C103 0 -27,259 -100.00 0 -100.00
2024-05-13 2024-03-31 13F MOSAIC CO COM 61945C103 27,259 18,100 197.62 885 170.34 0.1908
2024-02-13 2023-12-31 13F MOSAIC CO COM 61945C103 9,159 9,159 327 0.0835
2023-05-12 2023-03-31 13F MOSAIC CO COM 61945C103 0 -6,668 -100.00 0 -100.00
2023-02-07 2022-12-31 13F MOSAIC CO COM 61945C103 6,668 6,668 293 0.1174
2022-08-12 2022-06-30 13F MOSAIC CO COM 61945C103 0 -3,271 -100.00 0 -100.00
2022-05-10 2022-03-31 13F MOSAIC CO COM 61945C103 3,271 3,271 218 0.1214
2022-02-09 2021-12-31 13F MOSAIC CO COM 61945C103 0 -5,960 -100.00 0 -100.00
2021-11-15 2021-09-30 13F MOSAIC CO COM 61945C103 5,960 -15,579 -72.33 213 -69.00 0.1341
2021-08-05 2021-06-30 13F MOSAIC CO COM 61945C103 21,539 21,539 687 0.6249
2021-05-17 2021-03-31 13F MOSAIC CO COM 61945C103 0 -9,986 -100.00 0 -100.00
2021-02-08 2020-12-31 13F MOSAIC CO COM 61945C103 9,986 9,986 230 0.4645
2019-07-17 2019-06-30 13F MOSAIC NEW COM 61945C103 0 0 0 0.0000
2019-10-17 2019-03-31 13F MOSAIC NEW COM 61945C103 0 -9,485 -100.00 0 -100.00
2019-01-15 2018-12-31 13F MOSAIC NEW COM 61945C103 9,485 -10,069 -51.49 277 -56.38 0.1468
2018-10-05 2018-09-30 13F MOSAIC NEW COM 61945C103 19,554 19,554 106.16 635 129.24 0.2768
2018-07-17 2018-06-30 13F MOSAIC NEW COM 61945C103 0 -62,377 -100.00 0 -100.00
2018-04-17 2018-03-31 13F MOSAIC NEW COM 61945C103 62,377 13,477 27.56 1,515 20.72 0.3673
2018-01-18 2017-12-31 13F MOSAIC NEW COM 61945C103 48,900 48,900 -21.61 1,255 -17.16 0.3675
2017-10-23 2017-09-30 13F MOSAIC NEW COM 61945C103 0 -30,900 -100.00 0 -100.00
2017-07-10 2017-06-30 13F MOSAIC NEW COM 61945C103 30,900 17,000 122.30 705 73.65 0.2437
2017-04-17 2017-03-31 13F MOSAIC NEW COM 61945C103 13,900 13,900 -55.02 406 -42.41 0.1656
2016-04-18 2016-03-31 13F MOSAIC CO COM 61945C103 0 -19,700 -100.00 0 -100.00
2016-01-13 2015-12-31 13F MOSAIC CO COM 61945C103 19,700 19,700 544 0.4206
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.