CMP Institutional Ownership & Shareholders
COMPASS MINERALS INTERNATION (CMP) is currently held by 226 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.20B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Koch, Inc. is currently the largest disclosed institutional shareholder of CMP tracked by InsiderSet, reporting ownership valued at approximately $218.99M in its June 30, 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 $163.13M, representing an estimated loss of -25.51% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 62% 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
226
Total Reported Value
$1.20B
Largest Holder
Koch, Inc.
Largest Position
$218.99M
Insider Transactions (90d)
15
Latest Filing Quarter
Q2 2026
New Institutional Positions
78
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Koch, Inc. | 20.01% | 7,034,609 | $218,987,378 | $163,132,583 | -$55,854,795 | -25.51% | |
| Sailingstone Capital Partners Llc | 19.53% | 3,351,366 | $104,328,024 | $77,718,178 | -$26,609,846 | -25.51% | |
| Blackrock, Inc. | 0.00% | 3,078,473 | $95,832,876 | $71,389,789 | -$24,443,087 | -25.51% | |
| State Street Corp | 0.00% | 2,441,899 | $76,016,316 | $56,627,638 | -$19,388,678 | -25.51% | |
| American Century Companies Inc | 0.03% | 2,273,578 | $70,776,483 | $52,724,274 | -$18,052,209 | -25.51% | |
| Vanguard Capital Management Llc | 0.00% | 1,775,518 | $55,271,875 | $41,174,262 | -$14,097,613 | -25.51% | |
| Irenic Capital Management Lp | 2.39% | 1,068,378 | $33,258,607 | $24,775,686 | -$8,482,921 | -25.51% | |
| Dimensional Fund Advisors Lp | 0.01% | 951,151 | $29,609,821 | $22,057,192 | -$7,552,629 | -25.51% | |
| Jacobs Levy Equity Management, Inc | 0.10% | 886,009 | $27,581,460 | $20,546,549 | -$7,034,911 | -25.51% | |
| Gumshoe Capital Management Llc | 24.82% | 872,348 | $27,156,193 | $20,229,750 | -$6,926,443 | -25.51% | |
| Geode Capital Management, Llc | 0.00% | 841,419 | $26,198,395 | $19,512,507 | -$6,685,888 | -25.52% | |
| Vanguard Portfolio Management Llc | 0.00% | 698,271 | $21,737,176 | $16,192,904 | -$5,544,272 | -25.51% | |
| Charles Schwab Investment Management Inc | 0.00% | 655,606 | $20,409,015 | $15,203,503 | -$5,205,512 | -25.51% | |
| Aqr Capital Management Llc | 0.01% | 637,339 | $19,840,363 | $14,779,891 | -$5,060,472 | -25.51% | |
| Engine Capital Management, Lp | 1.92% | 633,021 | $19,705,944 | $14,679,757 | -$5,026,187 | -25.51% | |
| Newtyn Management, Llc | 2.46% | 632,326 | $19,684,308 | $14,663,640 | -$5,020,668 | -25.51% | |
| Federated Hermes, Inc. | 0.03% | 574,763 | $17,892,373 | $13,328,754 | -$4,563,619 | -25.51% | |
| Nuveen, Llc | 0.00% | 520,573 | $16,205,418 | $12,072,088 | -$4,133,330 | -25.51% | |
| Ewing Morris & Co. Investment Partners Ltd. | 7.73% | 570,800 | $14,788,956 | $13,236,852 | -$1,552,104 | -10.50% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 474,512 | $14,771,559 | $11,003,933 | -$3,767,626 | -25.51% | |
| O'Keefe Stevens Advisory, Inc. | 2.96% | 657,161 | $14,483,821 | $15,239,564 | +$755,743 | +5.22% | |
| Morgan Stanley | 0.00% | 439,621 | $13,685,418 | $10,194,811 | -$3,490,607 | -25.51% | |
| Ameriprise Financial Inc | 0.00% | 437,294 | $13,612,972 | $10,140,848 | -$3,472,124 | -25.51% | |
| Lee Danner & Bass Inc | 0.74% | 570,750 | $12,579,330 | $13,235,693 | +$656,363 | +5.22% | |
| Advisors Asset Management, Inc. | 0.17% | 238,503 | $12,182,733 | $5,530,885 | -$6,651,848 | -54.60% | |
| Northern Trust Corp | 0.00% | 307,508 | $9,572,724 | $7,131,111 | -$2,441,613 | -25.51% | |
| Goldman Sachs Group Inc | 0.00% | 306,078 | $9,528,208 | $7,097,949 | -$2,430,259 | -25.51% | |
| Raymond James Financial Inc | 0.00% | 287,553 | $8,951,524 | $6,668,354 | -$2,283,170 | -25.51% | |
| Bnp Paribas Financial Markets | 0.00% | 273,512 | $8,514,429 | $6,342,743 | -$2,171,686 | -25.51% | |
| Bank Of America Corp | 0.00% | 271,489 | $8,451,453 | $6,295,830 | -$2,155,623 | -25.51% | |
| Vanguard Fiduciary Trust Co | 0.00% | 252,156 | $7,849,616 | $5,847,498 | -$2,002,118 | -25.51% | |
| Hennessy Advisors Inc | 0.26% | 314,700 | $6,935,988 | $7,297,893 | +$361,905 | +5.22% | |
| State Of Wisconsin Investment Board | 0.01% | 191,325 | $5,955,947 | $4,436,827 | -$1,519,120 | -25.51% | |
| Invesco Ltd. | 0.00% | 189,199 | $5,889,765 | $4,387,525 | -$1,502,240 | -25.51% | |
| Jpmorgan Chase & Co | 0.00% | 179,130 | $5,599,614 | $4,154,025 | -$1,445,589 | -25.82% | |
| D. E. Shaw & Co., Inc. | 0.00% | 177,420 | $5,523,084 | $4,114,370 | -$1,408,714 | -25.51% | |
| Millennium Management Llc | 0.00% | 164,323 | $5,115,375 | $3,810,650 | -$1,304,725 | -25.51% | |
| Fmr Llc | 0.00% | 153,129 | $4,766,915 | $3,551,062 | -$1,215,853 | -25.51% | |
| Castleknight Management Lp | 0.16% | 142,126 | $4,424,382 | $3,295,902 | -$1,128,480 | -25.51% | |
| Janney Montgomery Scott Llc | 0.01% | 138,555 | $4,313,000 | $3,213,090 | -$1,099,910 | -25.50% | |
| Trexquant Investment Lp | 0.03% | 134,188 | $4,177,272 | $3,111,820 | -$1,065,452 | -25.51% | |
| Thompson Siegel & Walmsley Llc | 0.07% | 123,958 | $3,859,000 | $2,874,586 | -$984,414 | -25.51% | |
| Bank Of New York Mellon Corp | 0.00% | 105,468 | $3,283,232 | $2,445,803 | -$837,429 | -25.51% | |
| Lighthouse Investment Partners, Llc | 0.09% | 97,768 | $3,043,518 | $2,267,240 | -$776,278 | -25.51% | |
| Sg Americas Securities, Llc | 0.00% | 87,671 | $2,729,000 | $2,033,090 | -$695,910 | -25.50% | |
| Natixis | 0.01% | 86,447 | $2,691,095 | $2,004,706 | -$686,389 | -25.51% | |
| Xtx Topco Ltd | 0.03% | 81,169 | $2,526,791 | $1,882,309 | -$644,482 | -25.51% | |
| Martingale Asset Management L P | 0.06% | 80,661 | $2,510,977 | $1,870,529 | -$640,448 | -25.51% | |
| Citigroup Inc | 0.00% | 75,668 | $2,355,544 | $1,754,741 | -$600,803 | -25.51% | |
| Ubs Group Ag | 0.00% | 70,517 | $2,195,194 | $1,635,289 | -$559,905 | -25.51% |
Frequently asked questions about CMP
Who are the largest institutional holders of CMP?
The largest institutional holders of CMP reported in the latest SEC Form 13F filings include Koch, Inc., Sailingstone Capital Partners Llc, Blackrock, Inc., State Street Corp, and American Century Companies Inc. InsiderSet ranks institutional holders by their latest reported CMP position.
What is CMP institutional ownership?
This page tracks CMP positions reported by institutional investment managers through SEC Form 13F. COMPASS MINERALS INTERNATION (CMP) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own CMP?
InsiderSet currently tracks 226 institutional managers reporting CMP holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of CMP shareholders.
How much CMP stock do institutions own?
Institutional investment managers disclosed approximately $1.20B in CMP holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was CMP institutional ownership last updated?
The latest CMP institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional CMP holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its CMP position after the reporting date.
Are institutions buying or selling CMP?
Institutional buying and selling can be analyzed by comparing CMP positions across consecutive 13F reporting periods. InsiderSet's CMP Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View CMP ownership changes.
How has CMP institutional ownership changed over time?
InsiderSet tracks CMP institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.