Compass Minerals International Inc: which funds bought and sold

Institutions that bought and sold Compass Minerals International shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 126 institutions that filed 13F reports for both quarters added to or opened positions in Compass Minerals International, and 82 cut or closed them. Together they sold a net 1.7M shares, −4.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.4M shares (+20.0%); index fund managers were net buyers of 535K shares (+5.6%). 53 opened a new position and 26 sold out entirely.

Bought, Q2 2026 126 institutions, 53 of them new holders Sold, Q2 2026 82 institutions, 26 of them sold out

Net change, all compared −1.7M shares (−4.2%)

Net change, active managers +1.4M shares (+20.0%), 26 bought, 13 sold

Buyers versus sellers

institutions compared, 250

126 bought 42 82 sold

Active managers and hedge funds 26 bought · 13 sold · +1.4M

Index fund managers 8 bought · 1 sold · +535K

Other institutions 92 bought · 68 sold · −3.6M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Jacobs Levy Equity Management, Inc Active manager	+886K New position	886K	$27.6M
American Century Companies Inc Active manager	+595K +35.4%	2.3M	$70.8M
AQR Capital Management LLC Hedge fund	+568K +822.1%	637K	$19.8M
Arrowstreet Capital, Limited Partnership Hedge fund	+409K +621.9%	475K	$14.8M
Hennessy Advisors Inc	+346K New position	346K	$10.8M
Nuveen, LLC	+231K +79.7%	521K	$16.2M
Blackrock, Inc. Index funds	+226K +7.9%	3.1M	$95.8M
BNP Paribas Financial Markets	+225K +462.6%	274K	$8.5M
Raymond James Financial Inc	+161K +127.8%	288K	$9M
State Of Wisconsin Investment Board	+158K +473.2%	191K	$6M
FMR LLC Active manager	+138K +896.3%	153K	$4.8M
Trexquant Investment LP Hedge fund	+134K New position	134K	$4.2M
D. E. Shaw & Co., Inc. Hedge fund	+128K +261.9%	177K	$5.5M
Vanguard Portfolio Management LLC Index funds	+127K +22.2%	698K	$21.7M
State Street Corp Index funds	+119K +5.1%	2.4M	$76M
Morgan Stanley	+90K +25.7%	440K	$13.7M
Natixis	+86K New position	86K	$2.7M
Ameriprise Financial Inc	+77K +21.3%	437K	$13.6M
SG Americas Securities, LLC	+77K +688.0%	88K	$2.7M
Xtx Topco Ltd	+57K +239.7%	81K	$2.5M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Jacobs Levy Equity Management, Inc Active manager	+886K New position	886K	$27.6M
American Century Companies Inc Active manager	+595K +35.4%	2.3M	$70.8M
AQR Capital Management LLC Hedge fund	+568K +822.1%	637K	$19.8M
Arrowstreet Capital, Limited Partnership Hedge fund	+409K +621.9%	475K	$14.8M
FMR LLC Active manager	+138K +896.3%	153K	$4.8M
Trexquant Investment LP Hedge fund	+134K New position	134K	$4.2M
D. E. Shaw & Co., Inc. Hedge fund	+128K +261.9%	177K	$5.5M
Algert Global LLC Hedge fund	+51K New position	51K	$1.6M
PDT Partners, LLC Hedge fund	+40K New position	40K	$1.2M
Lighthouse Investment Partners, LLC Hedge fund	+38K +62.9%	98K	$3M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Sailingstone Capital Partners LLC	−1.5M −30.6%	3.4M	$104M
Ewing Morris & Co. Investment Partners Ltd.	−1.4M −71.7%	571K	$14.8M
Bank Of America Corp	−982K −78.3%	271K	$8.5M
Engine Capital Management, LP Hedge fund	−806K −56.0%	633K	$19.7M
Gumshoe Capital Management LLC	−393K −31.0%	872K	$27.2M
Irenic Capital Management LP Hedge fund	−367K −25.6%	1.1M	$33.3M
Jane Street Group, LLC	−271K Sold out	0	—
Sourcerock Group LLC	−235K Sold out	0	—
Castleknight Management LP Hedge fund	−209K −59.6%	142K	$4.4M
Citadel Advisors LLC Hedge fund	−179K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−157K −90.9%	16K	$488,741
Newtyn Management, LLC	−138K −17.9%	632K	$19.7M
HRT Financial LP	−112K Sold out	0	—
Citigroup Inc	−92K −54.8%	76K	$2.4M
Wells Fargo & Company	−86K −69.7%	38K	$1.2M
Jump Financial, LLC	−71K Sold out	0	—
Balyasny Asset Management L.P. Hedge fund	−53K Sold out	0	—
Krilogy Financial LLC	−51K −87.1%	7,559	$235,312
Charles Schwab Investment Management Inc Index funds	−49K −6.9%	656K	$20.4M
Squarepoint Ops LLC Hedge fund	−49K −81.4%	11K	$345,948

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Engine Capital Management, LP Hedge fund	−806K −56.0%	633K	$19.7M
Irenic Capital Management LP Hedge fund	−367K −25.6%	1.1M	$33.3M
Castleknight Management LP Hedge fund	−209K −59.6%	142K	$4.4M
Citadel Advisors LLC Hedge fund	−179K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−157K −90.9%	16K	$488,741
Balyasny Asset Management L.P. Hedge fund	−53K Sold out	0	—
Squarepoint Ops LLC Hedge fund	−49K −81.4%	11K	$345,948
Man Group PLC Hedge fund	−48K −45.8%	57K	$1.8M
Marshall Wace, LLP Hedge fund	−32K −39.6%	49K	$1.5M
Engineers Gate Manager LP Hedge fund	−17K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Jacobs Levy Equity Management, IncActive manager	886K	$27.6M
Hennessy Advisors Inc	346K	$10.8M
Trexquant Investment LPHedge fund	134K	$4.2M
Natixis	86K	$2.7M
Algert Global LLCHedge fund	51K	$1.6M
Mariner, LLC	51K	$1.6M
Y-Intercept (Hong Kong) Ltd	49K	$1.5M
PDT Partners, LLCHedge fund	40K	$1.2M
Tudor Investment Corp Et AlHedge fund	36K	$1.1M
Ieq Capital, LLC	36K	$1.1M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Jane Street Group, LLC	271K	$6.3M
Sourcerock Group LLC	235K	$5.5M
Citadel Advisors LLCHedge fund	179K	$4.2M
HRT Financial LP	112K	$2.6M
Jump Financial, LLC	71K	$1.7M
Balyasny Asset Management L.P.Hedge fund	53K	$1.2M
Koss-Olinger Consulting, LLC	46K	$1.1M
Susquehanna Fundamental Investments, LLC	29K	$680,769
Lightrock Netherlands B.V.	16K	$484,806
Engineers Gate Manager LPHedge fund	17K	$387,120

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 230
Ten largest holders: 61.1%
Index fund managers: 26.0%
Active managers and hedge funds: 21.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	26	13	12	3	+1.4M	+20.0%
Index fund managers	8	1	0	0	+535K	+5.6%
Other institutions	92	68	41	23	−3.6M	−14.9%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Compass Minerals International.

Only managers that filed a holdings report for both quarters are compared (250 here). 13 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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