CastleKnight reports 9.0% stake in Community Health Systems

Community Health Systems ownership disclosure: CastleKnight-related parties report shared beneficial ownership of 12,667,586 shares of Common Stock, representing 9.0% of the class.

Rhea-AI Filing Summary

Community Health Systems ownership disclosure: CastleKnight-related parties report shared beneficial ownership of 12,667,586 shares of Common Stock, representing 9.0% of the class. The amendment lists the filing group (CastleKnight Master Fund LP, related GP/management entities, Weitman Capital LLC and Aaron Weitman) and shows shared voting and dispositive power over that same share count.

The filing is a joint Schedule 13G/A amendment and includes a Joint Filing Agreement and a Control Person Identification exhibit.

Insights

Institutional Ownership Analyst

CastleKnight group reports a 9.0% shared stake in CYH.

The Schedule 13G/A amendment records 12,667,586 shares beneficially owned by CastleKnight entities and Aaron Weitman with shared voting and dispositive power. This indicates collective control attribution across the listed entities rather than separate, sole holdings.

Cash‑flow treatment is not addressed; subsequent filings may specify any trading activity. Watch future filings for changes in percent ownership or any conversion to a Schedule 13D when activist intentions appear.

Corporate Governance Specialist

Joint filing and exhibits identify control relationships among filing entities.

The amendment references a Joint Filing Agreement and a Control Person Identification exhibit, which formalize shared authority and attribution across CastleKnight and Weitman entities. The filing attributes shared voting and dispositive power to each listed filer.

Monitor subsequent disclosures for any updates to voting arrangements or if any filer converts to Schedule 13D, which would signal active intentions.

Key Figures

Beneficial ownership: 12,667,586 shares Percent of class: 9.0% Sole voting power: 0 shares +1 more

4 metrics

Beneficial ownership 12,667,586 shares reported by CastleKnight group

Percent of class 9.0% percent of common stock reported

Sole voting power 0 shares each filer reported sole voting power

Shared voting power 12,667,586 shares each filer reported shared voting power

Key Terms

Schedule 13G/A, beneficially owned, shared dispositive power

3 terms

Schedule 13G/A regulatory

"The filing is a joint Schedule 13G/A amendment"

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.

beneficially owned financial

"Amount beneficially owned: CastleKnight Master Fund LP - 12,667,586"

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.

shared dispositive power regulatory

"Shared Dispositive Power 12,667,586.00"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does CastleKnight report in CYH?

The filing reports a shared beneficial ownership of 12,667,586 shares, equal to 9.0% of Community Health Systems common stock. The stake is held across CastleKnight entities, Weitman Capital LLC, and Aaron Weitman as a joint filing group.

Who is listed as the reporting group on the Schedule 13G/A for CYH?

Reporters include CastleKnight Master Fund LP, CastleKnight Fund GP LLC, CastleKnight Management LP, CastleKnight Management GP LLC, Weitman Capital LLC, and Aaron Weitman, with addresses and citizenships provided in the filing.

Does the filing show sole voting or dispositive power over the shares?

No; the filing states 0 shares of sole voting or sole dispositive power and 12,667,586 shares of shared voting and shared dispositive power for each listed filer, indicating joint control attribution.

What exhibits accompany the Schedule 13G/A amendment for CYH?

The amendment includes Exhibit A (Joint Filing Agreement) and Exhibit B (Control Person Identification), which document the group filing arrangement and the identity/classification of the control person(s).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/15/2026 - 04:50 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

COMMUNITY HEALTH SYSTEMS INC

(Name of Issuer)

Common Stock, $0.01 par value

(Title of Class of Securities)

203668108

(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): 203668108

1

Names of Reporting Persons

CastleKnight Master Fund LP

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP Number(s): 203668108

1

Names of Reporting Persons

CastleKnight Fund GP LLC

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 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 203668108

1

Names of Reporting Persons

CastleKnight Management LP

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 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): 203668108

1

Names of Reporting Persons

CastleKnight Management GP LLC

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 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 203668108

1

Names of Reporting Persons

Weitman Capital LLC

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

NEW JERSEY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 203668108

1

Names of Reporting Persons

Aaron Weitman

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 12,667,586.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,667,586.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,667,586.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: COMMUNITY HEALTH SYSTEMS INC
(b)	Address of issuer's principal executive offices: 4000 Meridian Boulevard, Franklin, Tennessee 37067
Item 2.
(a)	Name of person filing: CastleKnight Master Fund LP CastleKnight Fund GP LLC CastleKnight Management LP CastleKnight Management GP LLC Weitman Capital LLC Aaron Weitman
(b)	Address or principal business office or, if none, residence: CastleKnight Master Fund LP Maples Corporate Services Limited P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayman Islands CastleKnight Fund GP LLC 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America CastleKnight Management GP LLC 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America Weitman Capital LLC c/o Aaron Weitman c/o CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America Aaron Weitman c/o CastleKnight Management LP 888 Seventh Avenue, 24th Floor New York, New York 10019 United States of America
(c)	Citizenship: CastleKnight Master Fund LP - Cayman Islands CastleKnight Fund GP LLC - Delaware CastleKnight Management LP - Delaware CastleKnight Management GP LLC - Delaware Weitman Capital LLC - New Jersey Aaron Weitman - United States
(d)	Title of class of securities: Common Stock, $0.01 par value
(e)	CUSIP No.: 203668108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: CastleKnight Master Fund LP - 12,667,586 CastleKnight Fund GP LLC - 12,667,586 CastleKnight Management LP - 12,667,586 CastleKnight Management GP LLC - 12,667,586 Weitman Capital LLC - 12,667,586 Aaron Weitman - 12,667,586
(b)	Percent of class: CastleKnight Master Fund LP - 9.0% CastleKnight Fund GP LLC - 9.0% CastleKnight Management LP - 9.0% CastleKnight Management GP LLC - 9.0% Weitman Capital LLC - 9.0% Aaron Weitman - 9.0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: CastleKnight Master Fund LP - 0 CastleKnight Fund GP LLC - 0 CastleKnight Management LP - 0 CastleKnight Management GP LLC - 0 Weitman Capital LLC - 0 Aaron Weitman - 0
	(ii) Shared power to vote or to direct the vote: CastleKnight Master Fund LP - 12,667,586 CastleKnight Fund GP LLC - 12,667,586 CastleKnight Management LP - 12,667,586 CastleKnight Management GP LLC - 12,667,586 Weitman Capital LLC - 12,667,586 Aaron Weitman - 12,667,586
	(iii) Sole power to dispose or to direct the disposition of: CastleKnight Master Fund LP - 0 CastleKnight Fund GP LLC - 0 CastleKnight Management LP - 0 CastleKnight Management GP LLC - 0 Weitman Capital LLC - 0 Aaron Weitman - 0
	(iv) Shared power to dispose or to direct the disposition of: CastleKnight Master Fund LP - 12,667,586 CastleKnight Fund GP LLC - 12,667,586 CastleKnight Management LP - 12,667,586 CastleKnight Management GP LLC - 12,667,586 Weitman Capital LLC - 12,667,586 Aaron Weitman - 12,667,586
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.
	Not Applicable
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. Please see Exhibit B attached hereto.
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 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.

CastleKnight Master Fund LP

Signature:	By: CastleKnight Fund GP LLC, its general partner, By: Weitman Capital LLC, its managing member
Name/Title:	Aaron Weitman/Manager
Date:	05/15/2026

CastleKnight Fund GP LLC

Signature:	By: Weitman Capital LLC, its managing member
Name/Title:	Aaron Weitman/Manager
Date:	05/15/2026

CastleKnight Management LP

Signature:	By: CastleKnight Management GP LLC, its general partner, By: Weitman Capital LLC, its managing member
Name/Title:	Aaron Weitman/Manager
Date:	05/15/2026

CastleKnight Management GP LLC

Signature:	By: Weitman Capital LLC, its managing member
Name/Title:	Aaron Weitman/Manager
Date:	05/15/2026

Weitman Capital LLC

Signature:	s/ Aaron Weitman
Name/Title:	Aaron Weitman/Manager
Date:	05/15/2026

Aaron Weitman

Signature:	/s/ Aaron Weitman
Name/Title:	Aaron Weitman
Date:	05/15/2026

Exhibit Information

[Exhibit A - Joint Filing Agreement] [Exhibit B - Control Person Identification]