COMPASS MINERALS INTERNATION (CMP) Top Institutional Shareholders
COMPASS MINERALS INTERNATION (CMP) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $920.97M in CMP holdings during the latest filing period.
Koch, Inc. is currently the largest disclosed institutional shareholder of CMP tracked by InsiderSet, reporting ownership valued at approximately $164.26M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $218.71M, representing an estimated gain of +33.15% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 67% of the total disclosed CMP value among the investors covered in this analysis. Major shareholders include Koch, Inc., Sailingstone Capital Partners Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in COMPASS MINERALS INTERNATION (CMP).
This page ranks the largest institutional CMP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
202
Total Reported Value
$920.97M
Largest Holder
Koch, Inc.
Largest Position
$164.26M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
180
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Koch, Inc. | 17.82% | 7,034,609 | $164,258,120 | $218,705,994 | +$54,447,874 | +33.15% | |
| Sailingstone Capital Partners Llc | 25.59% | 4,825,611 | $112,678,017 | $150,028,246 | +$37,350,229 | +33.15% | |
| Blackrock, Inc. | 0.00% | 2,852,763 | $66,612,025 | $88,692,402 | +$22,080,377 | +33.15% | |
| State Street Corp | 0.00% | 2,322,476 | $54,229,815 | $72,205,779 | +$17,975,964 | +33.15% | |
| Vanguard Capital Management Llc | 0.00% | 1,748,555 | $40,828,759 | $54,362,575 | +$13,533,816 | +33.15% | |
| Ewing Morris & Co. Investment Partners Ltd. | 18.21% | 2,014,327 | $40,440,030 | $62,625,426 | +$22,185,396 | +54.86% | |
| American Century Companies Inc | 0.02% | 1,678,675 | $39,197,061 | $52,190,006 | +$12,992,945 | +33.15% | |
| Engine Capital Management, Lp | 4.06% | 1,439,065 | $33,602,168 | $44,740,531 | +$11,138,363 | +33.15% | |
| Irenic Capital Management Lp | 3.04% | 1,435,529 | $33,519,602 | $44,630,597 | +$11,110,995 | +33.15% | |
| Gumshoe Capital Management Llc | 23.99% | 1,264,883 | $29,535,018 | $39,325,212 | +$9,790,194 | +33.15% | |
| Bank Of America Corp | 0.00% | 1,253,045 | $29,258,601 | $38,957,169 | +$9,698,568 | +33.15% | |
| Dimensional Fund Advisors Lp | 0.00% | 913,683 | $21,332,735 | $28,406,404 | +$7,073,669 | +33.16% | |
| Geode Capital Management, Llc | 0.00% | 785,144 | $18,336,566 | $24,410,127 | +$6,073,561 | +33.12% | |
| Newtyn Management, Llc | 1.92% | 770,000 | $17,979,500 | $23,939,300 | +$5,959,800 | +33.15% | |
| Charles Schwab Investment Management Inc | 0.00% | 704,438 | $16,448,627 | $21,900,977 | +$5,452,350 | +33.15% | |
| O'Keefe Stevens Advisory, Inc. | 3.52% | 610,462 | $14,254,280 | $18,979,264 | +$4,724,984 | +33.15% | |
| Lee Danner & Bass Inc | 0.89% | 605,750 | $14,144,263 | $18,832,768 | +$4,688,505 | +33.15% | |
| Vanguard Portfolio Management Llc | 0.00% | 571,428 | $13,342,844 | $17,765,697 | +$4,422,853 | +33.15% | |
| Federated Hermes, Inc. | 0.02% | 538,629 | $12,576,987 | $16,745,976 | +$4,168,989 | +33.15% | |
| Ameriprise Financial Inc | 0.00% | 360,464 | $8,416,843 | $11,206,826 | +$2,789,983 | +33.15% | |
| Castleknight Management Lp | 0.38% | 351,526 | $8,208,132 | $10,928,943 | +$2,720,811 | +33.15% | |
| Morgan Stanley | 0.00% | 349,837 | $8,168,705 | $10,876,432 | +$2,707,727 | +33.15% | |
| Nuveen, Llc | 0.00% | 289,665 | $6,763,678 | $9,005,685 | +$2,242,007 | +33.15% | |
| Northern Trust Corp | 0.00% | 289,482 | $6,759,404 | $8,999,995 | +$2,240,591 | +33.15% | |
| Jane Street Group, Llc | 0.01% | 270,955 | $6,326,799 | $8,423,991 | +$2,097,192 | +33.15% | |
| Goldman Sachs Group Inc | 0.00% | 249,291 | $5,820,953 | $7,750,457 | +$1,929,504 | +33.15% | |
| Vanguard Fiduciary Trust Co | 0.00% | 242,399 | $5,660,017 | $7,536,185 | +$1,876,168 | +33.15% | |
| Sourcerock Group Llc | 0.23% | 235,198 | $5,491,873 | $7,312,306 | +$1,820,433 | +33.15% | |
| Invesco Ltd. | 0.00% | 200,331 | $4,677,730 | $6,228,291 | +$1,550,561 | +33.15% | |
| Citadel Advisors Llc | 0.00% | 179,070 | $4,181,285 | $5,567,286 | +$1,386,001 | +33.15% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 172,911 | $4,037,472 | $5,375,803 | +$1,338,331 | +33.15% |
| Citigroup Inc | 0.00% | 167,404 | $3,908,883 | $5,204,590 | +$1,295,707 | +33.15% | |
| Millennium Management Llc | 0.00% | 141,698 | $3,308,648 | $4,405,391 | +$1,096,743 | +33.15% | |
| Raymond James Financial Inc | 0.00% | 126,255 | $2,948,054 | $3,925,268 | +$977,214 | +33.15% | |
| Wells Fargo & Company/Mn | 0.00% | 123,710 | $2,888,626 | $3,846,144 | +$957,518 | +33.15% | |
| Man Group Plc | 0.01% | 104,772 | $2,446,426 | $3,257,361 | +$810,935 | +33.15% | |
| Bank Of New York Mellon Corp | 0.00% | 104,208 | $2,433,257 | $3,239,827 | +$806,570 | +33.15% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 86,528 | $2,020,429 | $2,690,156 | +$669,727 | +33.15% | |
| Ubs Group Ag | 0.00% | 81,359 | $1,899,732 | $2,529,451 | +$629,719 | +33.15% | |
| Marshall Wace, Llp | 0.00% | 80,248 | $1,873,790 | $2,494,910 | +$621,120 | +33.15% | |
| Integrated Quantitative Investments Llc | 0.33% | 77,888 | $1,818,685 | $2,421,538 | +$602,853 | +33.15% | |
| Jump Financial, Llc | 0.02% | 71,008 | $1,658,037 | $2,207,639 | +$549,602 | +33.15% | |
| Swiss National Bank | 0.00% | 69,950 | $1,633,333 | $2,174,746 | +$541,413 | +33.15% | |
| Aqr Capital Management Llc | 0.00% | 69,117 | $1,613,881 | $2,148,848 | +$534,967 | +33.15% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 65,730 | $1,534,796 | $2,043,546 | +$508,750 | +33.15% | |
| Krilogy Financial Llc | 0.05% | 58,651 | $1,516,128 | $1,823,460 | +$307,332 | +20.27% | |
| Lighthouse Investment Partners, Llc | 0.05% | 60,000 | $1,401,000 | $1,865,400 | +$464,400 | +33.15% | |
| Squarepoint Ops Llc | 0.00% | 59,713 | $1,394,299 | $1,856,477 | +$462,178 | +33.15% | |
| Mountain Lake Investment Management Llc | 0.84% | 55,636 | $1,299,101 | $1,729,723 | +$430,622 | +33.15% | |
| Balyasny Asset Management L.P. | 0.00% | 53,484 | $1,248,851 | $1,662,818 | +$413,967 | +33.15% |
Frequently asked questions about CMP
Who owns the most CMP stock?
The largest holders of CMP are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for COMPASS MINERALS INTERNATION (CMP).
Is CMP widely held by superinvestors?
Many widely followed stocks like CMP appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CMP is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.