BlackRock Inc. (CMP) discloses 2.53M shares, 6.1% stake in Compass Minerals

Rhea-AI Filing Summary

Compass Minerals International Inc. ownership disclosure: BlackRock, Inc. reports beneficial ownership of 2,533,686 shares of Common Stock, representing 6.1% of the class as of the cover period. The filing shows sole voting power for 2,480,245 shares and sole dispositive power for 2,533,686 shares. The Schedule 13G/A (Amendment No. 7) attributes holdings to certain Reporting Business Units of BlackRock and is signed by Spencer Fleming on 04/27/2026.

Insights

Institutional Ownership Analyst

BlackRock reports a >5% passive stake in Compass Minerals.

BlackRock, through specified Reporting Business Units, lists beneficial ownership of 2,533,686 shares (6.1%). The filing quantifies voting and dispositive powers, showing centralized control within the reporting units.

Because this is a Schedule 13G/A update, the disclosure reflects passive institutional holdings rather than an active acquisition; subsequent filings would show any change in intent or material shifts.

Corporate Governance Specialist

Filing clarifies recordkeeping and attribution within BlackRock's business units.

The statement notes holdings are aggregated for certain Reporting Business Units under SEC Release No. 34-39538, which explains the allocation method across BlackRock affiliates. The exhibit references identify the subsidiary classification.

Investors can use this to track institutional ownership trends; changes would appear in later amendments or on Schedule 13D if intent changed.

Key Figures

Beneficial ownership: 2,533,686 shares Percent of class: 6.1% Sole voting power: 2,480,245 shares +3 more

6 metrics

Beneficial ownership 2,533,686 shares Amount beneficially owned as stated in Item 4

Percent of class 6.1% Percent of common stock reported in Item 4

Sole voting power 2,480,245 shares Sole power to vote as stated in Item 4(c)(i)

Sole dispositive power 2,533,686 shares Sole power to dispose as stated in Item 4(c)(iii)

CUSIP 20451N101 Identifier for Compass Minerals common stock on cover

Signature date 04/27/2026 Date signature by Spencer Fleming appears

Key Terms

Beneficially owned, Sole Dispositive Power, Schedule 13G/A, Reporting Business Units

4 terms

Beneficially owned regulatory

"reflects the securities beneficially owned, or deemed to be beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole Dispositive Power regulatory

"Sole power to dispose or to direct the disposition of: 2533686"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G/A regulatory

"Name of filing: SCHEDULE 13G/A (Amendment No. 7)"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Reporting Business Units other

"beneficially owned by certain business units (collectively, the "Reporting Business Units")"

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 7)

COMPASS MINERALS INTERNATIONAL INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

20451N101

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 20451N101

1

Names of Reporting Persons

BlackRock, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,480,245.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,533,686.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,533,686.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: COMPASS MINERALS INTERNATIONAL INC
(b)	Address of issuer's principal executive offices: 9900 W. 109TH STREET, SUITE 100 OVERLAND PARK KS 66210
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 20451N101
Item 4.	Ownership
(a)	Amount beneficially owned: 2533686
(b)	Percent of class: 6.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2480245
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2533686
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of COMPASS MINERALS INTERNATIONAL INC. No one person's interest in the common stock of COMPASS MINERALS INTERNATIONAL INC is more than five percent of the total outstanding common shares.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	04/27/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7

FAQ

What stake does BlackRock report in Compass Minerals (CMP)?

BlackRock reports beneficial ownership of 2,533,686 shares, equal to 6.1% of Compass Minerals' common stock. The Schedule 13G/A attributes voting and dispositive powers to BlackRock's Reporting Business Units and cites CUSIP 20451N101.

What voting and dispositive powers does BlackRock hold for CMP?

BlackRock reports sole voting power for 2,480,245 shares and sole dispositive power for 2,533,686 shares. The filing specifies no shared voting or dispositive power for this position in the provided excerpt.

What document and amendment reports BlackRock's holdings in CMP?

The position is disclosed on a Schedule 13G/A (Amendment No. 7) for Compass Minerals International Inc. and is signed by Spencer Fleming on 04/27/2026, referencing aggregation rules from SEC Release No. 34-39538.

Does the filing indicate BlackRock controls Compass Minerals?

No controlling claim is made; the Schedule 13G/A reports beneficial ownership of 6.1%. The filing attributes holdings to Reporting Business Units and does not state an intent to control or a change in investment purpose.

What is the CUSIP and reporting period shown in the filing?

The filing lists CUSIP 20451N101 and includes a cover period date of 03/31/2026 while the signature date is 04/27/2026. These dates anchor the ownership snapshot and the amendment signature.