Compass Minerals International CMP Institutional Ownership

NYSE CMP

$25.26 -0.37 (-1.44%)

As of: Sep 10, 2026 · 1:42 PM EDT

Institutions by Trading Activity

232 Institutions

Increased 132 56.9%

Unchanged 45 19.4%

Reduced 55 23.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

93.31%

▼-2.83 pp QoQ

Shares Held by Institutions

39.42Mn

of 42.25Mn outstanding

▲+0.18% QoQ

Shares Outstanding

42.25Mn

2.83Mn held outside 13F filers

Institutional Investors

232

filed 13F for Jun 2026

▲+28 vs prior quarter

Net Shares Added (QoQ)

+68.90K

accumulated since last quarter

Value of Holdings

$998.86Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Compass Minerals International Inc (NYSE:CMP) has 232 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 93.3% of outstanding stock in June 2026, down from 96.1% the prior quarter.
Their total shares held in CMP increased 0.18% from the prior quarter, while the number of investors in Compass Minerals International increased 10.48% year over year.
Activity in CMP broke down as 132 buyers, 55 sellers, and 45 unchanged among 232 total holders.
Institutional investors collectively held 39.42Mn shares in Compass Minerals International as of June 2026, up by 68.9K shares quarter on quarter, and up 2.12Mn shares year over year.
As of June 30, 2026, Koch, Inc. held the largest stake in Compass Minerals International with 7.03Mn shares, accounting for 16.65% of total shares outstanding.
The most significant purchases of CMP for the quarter ending June 2026 came from JACOBS LEVY EQUITY MANAGEMENT, INC (886.01K), Sixth Street Partners Management Company, L.P. (655.61K), AMERICAN CENTURY COMPANIES INC (594.9K), AQR CAPITAL MANAGEMENT LLC (568.22K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (408.78K).
The biggest sellers of Compass Minerals International for the quarter ending June 2026 included SailingStone Capital Partners LLC (1.47Mn), Ewing Morris & Co. Investment Partners Ltd. (1.44Mn), Bank Of America Corp /De/ (981.56K), Engine Capital Management, LP (806.04K), Gumshoe Capital Management LLC (392.54K).
Per Business Quant, the top 10 investors in CMP for the quarter ending June 2026 include Koch, Inc. (7.03Mn), SailingStone Capital Partners LLC (3.35Mn), BlackRock, Inc. (3.08Mn), State Street Corp (2.44Mn), AMERICAN CENTURY COMPANIES INC (2.27Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.78Mn), Irenic Capital Management LP (1.07Mn), DIMENSIONAL FUND ADVISORS LP (951.15K), JACOBS LEVY EQUITY MANAGEMENT, INC (886.01K), Gumshoe Capital Management LLC (872.35K).

Form 13F Holdings

232 Institutional Holders

Report period 30 Jun, 2026

Total shares held 39.42Mn

Of outstanding 93.31%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Koch, Inc.	0002027344	7,034,609	16.65%	0	0.00%	$218.99Mn
2	SailingStone Capital Partners LLC	0001608904	3,351,366	7.93%	▼1,474,245	-30.55%	$104.33Mn
3	BlackRock, Inc.	0002012383	3,078,473	7.29%	▲225,710	+7.91%	$95.83Mn
4	State Street Corp	0000093751	2,441,899	5.78%	▲119,423	+5.14%	$76.02Mn
5	AMERICAN CENTURY COMPANIES INC	0000748054	2,273,578	5.38%	▲594,903	+35.44%	$70.78Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,775,518	4.20%	▲26,963	+1.54%	$55.27Mn
7	Irenic Capital Management LP	0001929389	1,068,378	2.53%	▼367,151	-25.58%	$33.26Mn
8	DIMENSIONAL FUND ADVISORS LP	0000354204	951,151	2.25%	▲37,468	+4.10%	$29.61Mn
9	JACOBS LEVY EQUITY MANAGEMENT, INC	0000884414	886,009	2.10%	▲886,009	0.00%	$27.58Mn
10	Gumshoe Capital Management LLC	0001995382	872,348	2.06%	▼392,535	-31.03%	$27.16Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	841,419	1.99%	▲56,275	+7.17%	$26.20Mn
12	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	698,271	1.65%	▲126,843	+22.20%	$21.74Mn
13	Sixth Street Partners Management Company, L.P.	0001812095	655,606	1.55%	▲655,606	0.00%	$20.41Mn
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	655,606	1.55%	▼48,832	-6.93%	$20.41Mn
14	AQR CAPITAL MANAGEMENT LLC	0001167557	637,339	1.51%	▲568,222	+822.12%	$19.84Mn
15	Engine Capital Management, LP	0001665590	633,021	1.50%	▼806,044	-56.01%	$19.71Mn
16	Newtyn Management, LLC	0001569241	632,326	1.50%	▼137,674	-17.88%	$19.68Mn
17	O'Keefe Stevens Advisory, Inc.	0001780565	631,272	1.49%	▲20,810	+3.41%	$19.65Mn
18	LEE DANNER & BASS INC	0000939219	580,750	1.37%	▼25,000	-4.13%	$18.08Mn
19	Federated Hermes, Inc.	0001056288	574,763	1.36%	▲36,134	+6.71%	$17.89Mn

Showing 1 to 20 of 232 holders