The Mosaic Company
US ˙ NYSE ˙ US61945C1036

SecurityMOS / The Mosaic Company
InstitutionWestpac Banking Corp
Latest Disclosed Ownership2,552 shares
Latest Disclosed Value $ 65,076
Westpac Banking Corp ownership in MOS / The Mosaic Company

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 2,552 shares of The Mosaic Company (US:MOS) valued at $65,076 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 2,552 shares of The Mosaic Company. This represents a change in shares of 0.00% during the quarter. The current value of the position is $58,441 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)
2026-05-11 2026-03-31 13F MOSAIC COM 61945C103 2,552 0 0.00 65 6.56 0.0023
2026-02-10 2025-12-31 13F MOSAIC COM 61945C103 2,552 2,552 61 0.0039
2025-02-12 2024-12-31 13F MOSAIC CO COM 61945C103 0 -11,632 -100.00 0 -100.00
2024-11-08 2024-09-30 13F MOSAIC CO COM 61945C103 11,632 -7,814 -40.18 312 -44.56 0.0209
2024-08-14 2024-06-30 13F/A-1 MOSAIC CO COM 61945C103 19,446 13,319 217.38 562 183.33 0.0446
2024-08-13 2024-06-30 13F MOSAIC CO COM 61945C103 19,446 13,319 562 0.0193
2024-05-09 2024-03-31 13F MOSAIC CO COM 61945C103 6,127 -8,701 -58.68 199 -62.57 0.0152
2024-02-08 2023-12-31 13F MOSAIC CO COM 61945C103 14,828 -4,422 -22.97 530 -22.77 0.0437
2023-11-13 2023-09-30 13F MOSAIC CO COM 61945C103 19,250 -28,442 -59.64 685 -58.96 0.0513
2023-08-10 2023-06-30 13F MOSAIC CO COM 61945C103 47,692 -93,254 -66.16 1,669 -74.19 0.1178
2023-05-04 2023-03-31 13F MOSAIC CO COM 61945C103 140,946 -52,235 -27.04 6,467 -23.70 0.0869
2023-02-06 2022-12-31 13F MOSAIC CO COM 61945C103 193,181 27,205 16.39 8,475 5.65 0.1253
2022-11-08 2022-09-30 13F MOSAIC CO COM 61945C103 165,976 -63,163 -27.57 8,022 -25.88 0.1223
2022-08-10 2022-06-30 13F MOSAIC CO COM 61945C103 229,139 2,596 1.15 10,822 -28.16 0.1410
2022-05-11 2022-03-31 13F MOSAIC CO COM 61945C103 226,543 124,889 122.86 15,065 277.29 0.1728
2022-02-08 2021-12-31 13F MOSAIC CO COM 61945C103 101,654 -7,547 -6.91 3,994 2.38 0.0414
2021-10-27 2021-09-30 13F MOSAIC CO COM 61945C103 109,201 -71,837 -39.68 3,901 -32.48 0.0417
2021-08-11 2021-06-30 13F MOSAIC CO COM 61945C103 181,038 -17,414 -8.77 5,777 -7.92 0.0580
2021-05-13 2021-03-31 13F MOSAIC CO COM 61945C103 198,452 0 0.00 6,273 37.39 0.0692
2021-02-11 2020-12-31 13F MOSAIC CO COM 61945C103 198,452 19,258 10.75 4,566 39.51 0.0518
2020-11-10 2020-09-30 13F MOSAIC CO COM 61945C103 179,194 -4,600 -2.50 3,274 42.37 0.0444
2020-08-12 2020-06-30 13F MOSAIC CO COM 61945C103 183,794 20,500 12.55 2,299 30.18 0.0343
2020-05-14 2020-03-31 13F MOSAIC CO COM 61945C103 163,294 15,300 10.34 1,767 -44.85 0.0304
2020-02-11 2019-12-31 13F MOSAIC CO COM 61945C103 147,994 49,900 50.87 3,203 59.30 0.0412
2019-11-13 2019-09-30 13F MOSAIC CO COM 61945C103 98,094 0 0.00 2,011 -18.13 0.0280
2019-08-01 2019-06-30 13F MOSAIC CO COM 61945C103 98,094 0 0.00 2,455 -8.33 0.0375
2019-05-14 2019-03-31 13F MOSAIC CO COM 61945C103 98,094 0 0.00 2,679 -6.53 0.0442
2019-02-07 2018-12-31 13F MOSAIC CO COM 61945C103 98,094 -30,861 -23.93 2,865 -31.59 0.0488
2018-11-13 2018-09-30 13F MOSAIC CO COM 61945C103 128,955 -26,600 -17.10 4,188 -4.01 0.0718
2018-07-18 2018-06-30 13F MOSAIC CO COM 61945C103 155,555 0 0.00 4,363 15.55 0.0838
2018-05-01 2018-03-31 13F MOSAIC CO COM 61945C103 155,555 48,200 44.90 3,777 37.11 0.0754
2018-01-18 2017-12-31 13F MOSAIC CO COM 61945C103 107,355 26,390 32.59 2,755 57.55 0.0626
2017-10-30 2017-09-30 13F MOSAIC CO COM 61945C103 80,965 31,094 62.35 1,748 53.60 0.0385
2017-08-09 2017-06-30 13F MOSAIC CO COM 61945C103 49,871 -51,263 -50.69 1,139 -61.44 0.0251
2017-05-18 2017-03-31 13F/A-1 MOSAIC CO COM 61945C103 101,134 -2,424 -2.34 2,951 -8.89 0.0237
2017-05-11 2017-03-31 13F MOSAIC CO COM 61945C103 210,636 5,714
2017-02-09 2016-12-31 13F MOSAIC CO COM 61945C103 103,558 19,381 23.02 3,240 57.39 0.0306
2016-11-10 2016-09-30 13F MOSAIC CO COM 61945C103 84,177 9,581 12.84 2,059 5.43 0.0222
2016-08-10 2016-06-30 13F MOSAIC CO COM 61945C103 74,596 -221,771 -74.83 1,953 -85.66 0.0214
2016-05-13 2016-03-31 13F MOSAIC CO COM 61945C103 296,367 -13,807 -4.45 13,614 59.10 0.1480
2016-02-11 2015-12-31 13F MOSAIC CO COM 61945C103 310,174 129,360 71.54 8,558 52.12 0.0947
2015-11-16 2015-09-30 13F/A-1 MOSAIC CO COM 61945C103 180,814 164,749 1,025.52 5,625 648.01 0.0619
2015-11-12 2015-09-30 13F MOSAIC CO COM 61945C103 180,814 5,625
2015-08-12 2015-06-30 13F MOSAIC CO COM 61945C103 16,065 -2,652 -14.17 753 -22.31 0.0074
2015-05-12 2015-03-31 13F MOSAIC CO COM 61945C103 18,717 -3,200 -14.60 969 -3.20 0.0084
2015-02-11 2014-12-31 13F MOSAIC CO COM 61945C103 21,917 0 0.00 1,001 2.77 0.0095
2014-11-12 2014-09-30 13F MOSAIC CO COM 61945C103 21,917 -369 -1.66 973 -11.71 0.0095
2014-08-11 2014-06-30 13F MOSAIC CO COM 61945C103 22,286 -85,801 -79.38 1,102 -79.61 0.0106
2014-05-12 2014-03-31 13F MOSAIC CO COM 61945C103 108,087 39,397 57.35 5,404 66.48 0.0576
2014-02-13 2013-12-31 13F MOSAIC CO COM 61945C103 68,690 -41,600 -37.72 3,247 -31.58 0.0371
2013-11-12 2013-09-30 13F MOSAIC CO COM 61945C103 110,290 -38,075 -25.66 4,745 -45.86 0.0593
2013-08-14 2013-06-30 13F MOSAIC CO COM 61945C103 148,365 148,365 8,763 0.1340
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.