CMP
Compass Minerals (CMP)
NYSE
$28.12-$0.76 (-2.62%)
Price as of Jun 23, 2026 5:39 PM EDT
  • $1.2B
    Market Cap
  • 45.73%
    1-Year Change
  • Other Industrial Metals & Mining
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
KOCH INDUSTRIES INC
16.77%
7.0M
0 (0.00%)
Jun 30, 2024
KOCH, INC.
16.77%
7.0M
0 (0.00%)
Mar 31, 2026
BLACKROCK INC.
15.64%
6.6M
+537,565 (+8.19%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
12.47%
5.2M
+393,975 (+7.53%)
Dec 31, 2024
SAILINGSTONE CAPITAL PARTNERS LLC
11.50%
4.8M
-588,456 (-12.19%)
Mar 31, 2026
BLACKROCK, INC.
6.80%
2.9M
-1.1M (-39.62%)
Mar 31, 2026
VANGUARD GROUP INC
6.57%
2.8M
-17,383 (-0.63%)
Dec 31, 2025

Current Ownership Distribution

  • Institutions683.4M (65.97%)
  • Mutual Funds336.5M (32.48%)
  • Insiders16.0M (1.54%)
  • Other0 (0.00%)

Insider Transactions

  • 1.54% (16.0M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Reece Joseph E
Award
Mar 31, 2026
$0.00
1,816
$0.00
94,465
Roberts Mark Lawrence
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Joyce Gareth T
Exempt
Mar 05, 2026
$0.00
11,905
$0.00
0
Reece Joseph E
Exempt
Mar 05, 2026
$0.00
22,322
$0.00
0
Safran David
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Miller Melissa M
Exempt
Mar 05, 2026
$0.00
11,905
$0.00
0
Joyce Gareth T
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Reece Joseph E
Award
Mar 05, 2026
$0.00
9,434
$0.00
9,434
Ball Russell David
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Merle Denise M
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Joyce Gareth T
Exempt
Mar 05, 2026
$0.00
11,905
$0.00
43,118
Reece Joseph E
Exempt
Mar 05, 2026
$0.00
22,322
$0.00
92,649
Miller Melissa M
Award
Mar 05, 2026
$0.00
5,032
$0.00
5,032
Miller Melissa M
Exempt
Mar 05, 2026
$0.00
11,905
$0.00
43,152
Merrin Patrick James
Chief Operations Officer
Exempt
Mar 03, 2026
$0.00
11,047
$0.00
22,094
Merrin Patrick James
Chief Operations Officer
Exempt
Mar 03, 2026
$0.00
7,478
$0.00
7,477
Merrin Patrick James
Chief Operations Officer
Exempt
Mar 03, 2026
$0.00
18,525
$0.00
18,525
Merrin Patrick James
Chief Operations Officer
In Kind
Mar 03, 2026
$123,474.04
5,003
$24.68
13,522
Fjellman Peter
Chief Financial Officer
Exempt
Jan 28, 2026
$0.00
8,321
$0.00
16,641
Fjellman Peter
Chief Financial Officer
Exempt
Jan 28, 2026
$0.00
8,321
$0.00
8,321
Fjellman Peter
Chief Financial Officer
In Kind
Jan 28, 2026
$70,448.00
2,720
$25.90
5,601
DOWLING EDWARD C
President and CEO
Exempt
Jan 18, 2026
$0.00
22,350
$0.00
22,350
DOWLING EDWARD C
President and CEO
Exempt
Jan 18, 2026
$0.00
22,350
$0.00
73,139
DOWLING EDWARD C
President and CEO
In Kind
Jan 18, 2026
$160,188.62
6,878
$23.29
66,261
Joyce Gareth T
Award
Dec 31, 2025
$0.00
1,401
$0.00
31,213
Ball Russell David
Award
Dec 31, 2025
$0.00
186
$0.00
186
WALKER LORI A
Award
Dec 31, 2025
$0.00
1,528
$0.00
45,820
Reece Joseph E
Award
Dec 31, 2025
$0.00
2,260
$0.00
70,327
DEALY RICHARD P
Award
Dec 31, 2025
$0.00
1,496
$0.00
31,652
Ball Russell David
Award
Dec 18, 2025
$0.00
1,348
$0.00
1,348