Compass Minerals International, Inc.
US ˙ NYSE ˙ US20451N1019

SecurityCMP / Compass Minerals International, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership913,683 shares
Latest Disclosed Value $ 21,332,735
Dimensional Fund Advisors Lp reports 18.24% increase in ownership of CMP / Compass Minerals International, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 913,683 shares of Compass Minerals International, Inc. (US:CMP) valued at $21,334,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 772,765 shares of Compass Minerals International, Inc.. This represents a change in shares of 18.24% during the quarter. The current value of the position is $29,822,613 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)
2026-05-07 2026-03-31 13F COMPASS MINERALS INTL COM 20451N101 913,683 140,918 18.24 21,333 40.55 0.0010
2026-02-12 2025-12-31 13F COMPASS MINERALS INTL COM 20451N101 772,765 43,135 5.91 15,178 8.34 0.0032
2025-11-12 2025-09-30 13F COMPASS MINERALS INTL COM 20451N101 729,630 75,881 11.61 14,009 6.67 0.0030
2025-08-12 2025-06-30 13F COMPASS MINERALS INTL COM 20451N101 653,749 112,564 20.80 13,134 161.25 0.0030
2025-05-13 2025-03-31 13F COMPASS MINERALS INTL COM 20451N101 541,185 -3,633 -0.67 5,028 -17.97 0.0012
2025-02-13 2024-12-31 13F COMPASS MINERALS INTL COM 20451N101 544,818 -528 -0.10 6,128 -6.51 0.0015
2024-11-07 2024-09-30 13F COMPASS MINERALS INTL COM 20451N101 545,346 -150,974 -21.68 6,556 -8.87 0.0016
2024-08-09 2024-06-30 13F COMPASS MINERALS INTL COM 20451N101 696,320 -320,150 -31.50 7,194 -55.04 0.0019
2024-05-10 2024-03-31 13F COMPASS MINERALS INTL COM 20451N101 1,016,470 -230,385 -18.48 15,999 -49.33 0.0043
2024-02-07 2023-12-31 13F COMPASS MINERALS INTL COM 20451N101 1,246,855 172,018 16.00 31,572 5.10 0.0092
2023-11-09 2023-09-30 13F COMPASS MINERALS INTL COM 20451N101 1,074,837 14,491 1.37 30,042 -16.67 0.0099
2023-08-09 2023-06-30 13F COMPASS MINERALS INTL COM 20451N101 1,060,346 189,275 21.73 36,052 20.71 0.0115
2023-05-12 2023-03-31 13F COMPASS MINERALS INTL COM 20451N101 871,071 288,891 49.62 29,867 129,756.52 0.0101
2023-02-09 2022-12-31 13F COMPASS MINERALS INTL COM 20451N101 582,180 8,319 1.45 24 -99.90 0.0071
2022-11-10 2022-09-30 13F COMPASS MINERALS INTL COM 20451N101 573,861 -150,825 -20.81 22,111 -13.79 0.0085
2022-08-12 2022-06-30 13F COMPASS MINERALS INTL COM 20451N101 724,686 -19,317 -2.60 25,647 -45.10 0.0092
2022-05-13 2022-03-31 13F COMPASS MINERALS INTL COM 20451N101 744,003 -8,658 -1.15 46,717 21.52 0.0144
2022-02-09 2021-12-31 13F COMPASS MINERALS INTL COM 20451N101 752,661 -59,774 -7.36 38,445 -26.52 0.0116
2021-11-12 2021-09-30 13F COMPASS MINERALS INTL COM 20451N101 812,435 -59,984 -6.88 52,320 1.20 0.0169
2021-08-12 2021-06-30 13F COMPASS MINERALS INTL COM 20451N101 872,419 -46,489 -5.06 51,698 -10.30 0.0164
2021-05-14 2021-03-31 13F COMPASS MINERALS INTL COM 20451N101 918,908 -25,300 -2.68 57,634 -1.10 0.0191
2021-03-08 2020-12-31 13F/A-2 COMPASS MINERALS INTL COM 20451N101 944,208 -32,482 -3.33 58,276 0.54 0.0210
2021-02-11 2020-12-31 13F COMPASS MINERALS INTL COM 20451N101 944,208 -32,482 58,276 21,046.1937
2020-11-12 2020-09-30 13F COMPASS MINERALS INTL COM 20451N101 976,690 -36,830 -3.63 57,965 17.32 0.0246
2020-08-13 2020-06-30 13F COMPASS MINERALS INTL COM 20451N101 1,013,520 -9,024 -0.88 49,408 25.62 0.0217
2020-05-14 2020-03-31 13F COMPASS MINERALS INTL COM 20451N101 1,022,544 -6,152 -0.60 39,332 -37.28 0.0205
2020-02-14 2019-12-31 13F COMPASS MINERALS INTL COM 20451N101 1,028,696 -25,116 -2.38 62,709 5.34 0.0229
2019-11-12 2019-09-30 13F COMPASS MINERALS INTL COM 20451N101 1,053,812 14,889 1.43 59,529 4.27 0.0231
2019-08-13 2019-06-30 13F COMPASS MINERALS INTL COM 20451N101 1,038,923 36,107 3.60 57,089 4.71 0.0222
2019-08-12 2019-03-31 13F/A-2 COMPASS MINERALS INTL COM 20451N101 1,002,816 67,431 7.21 54,522 39.81 0.0217
2019-05-10 2019-03-31 13F COMPASS MINERALS INTL COM 20451N101 1,002,816 67,431 54,522
2019-02-26 2018-12-31 13F/A-1 COMPASS MINERALS INTL COM 20451N101 935,385 45,945 5.17 38,996 -34.76 0.0177
2019-02-13 2018-12-31 13F COMPASS MINERALS INTL COM 20451N101 935,385 45,945 38,996
2018-11-13 2018-09-30 13F COMPASS MINERALS INTL COM 20451N101 889,440 2,510 0.28 59,769 2.49 0.0228
2018-08-10 2018-06-30 13F COMPASS MINERALS INTL COM 20451N101 886,930 15,790 1.81 58,315 11.01 0.0232
2018-05-11 2018-03-31 13F COMPASS MINERALS INTL COM 20451N101 871,140 -2,690 -0.31 52,530 -16.79 0.0219
2018-02-12 2017-12-31 13F COMPASS MINERALS INTL COM 20451N101 873,830 2,366 0.27 63,133 11.63 0.0262
2017-11-13 2017-09-30 13F COMPASS MINERALS INTL COM 20451N101 871,464 25,177 2.97 56,557 2.34 0.0247
2017-08-11 2017-06-30 13F COMPASS MINERALS INTL COM 20451N101 846,287 -3,392 -0.40 55,263 -4.14 0.0255
2017-05-12 2017-03-31 13F COMPASS MINERALS INTL COM 20451N101 849,679 25,692 3.12 57,651 -10.70 0.0276
2017-02-09 2016-12-31 13F COMPASS MINERALS INTL COM 20451N101 823,987 14,908 1.84 64,561 8.27 0.0322
2016-11-10 2016-09-30 13F COMPASS MINERALS INTL COM 20451N101 809,079 7,601 0.95 59,629 0.28 0.0322
2016-08-09 2016-06-30 13F COMPASS MINERALS INTL COM 20451N101 801,478 -1,755 -0.22 59,461 4.47 0.0342
2016-05-13 2016-03-31 13F COMPASS MINERALS INTL COM 20451N101 803,233 59,605 8.02 56,918 1.69 0.0341
2016-02-10 2015-12-31 13F COMPASS MINERALS INTL COM 20451N101 743,628 24,489 3.41 55,973 -0.68 0.0349
2015-11-13 2015-09-30 13F COMPASS MINERALS INTL COM 20451N101 719,139 88,856 14.10 56,358 8.86 0.0370
2015-08-14 2015-06-30 13F COMPASS MINERALS INTL COM 20451N101 630,283 82,035 14.96 51,773 1.31 0.0317
2015-05-14 2015-03-31 13F COMPASS MINERALS INTL COM 20451N101 548,248 39,236 7.71 51,102 15.62 0.0323
2015-02-06 2014-12-31 13F COMPASS MINERALS INTL COM 20451N101 509,012 133,076 35.40 44,198 39.50 0.0290
2014-11-13 2014-09-30 13F COMPASS MINERALS INTL COM 20451N101 375,936 100,654 36.56 31,684 20.22 0.0224
2014-08-08 2014-06-30 13F COMPASS MINERALS INTL COM 20451N101 275,282 34,267 14.22 26,355 32.52 0.0183
2014-05-14 2014-03-31 13F COMPASS MINERALS INTL COM 20451N101 241,015 65,072 36.98 19,888 41.21 0.0149
2014-02-12 2013-12-31 13F COMPASS MINERALS INTL COM 20451N101 175,943 -5,211 -2.88 14,084 1.94 0.0110
2013-11-13 2013-09-30 13F COMPASS MINERALS INTL COM 20451N101 181,154 119,985 196.15 13,816 167.23 0.0120
2013-08-15 2013-06-30 13F COMPASS MINERALS INTL COM 20451N101 61,169 61,169 5,170 0.0049
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.