Morgan Stanley units report ~9.3% stake in Calamos (CHW) — 5.9M shares

Rhea-AI Filing Summary

Calamos Global Dynamic Income Fund amendment: a Schedule 13G/A filing reports Morgan Stanley reporting units' ownership details. The filing lists shared dispositive power over 5,933,802 shares ( 9.3%) for Morgan Stanley and 5,854,678 shares ( 9.2%) for Morgan Stanley Smith Barney LLC, signed 05/11/2026.

Insights

Compliance Counsel

Filing updates beneficial‑ownership reporting for Morgan Stanley units.

The amendment is a Schedule 13G/A that discloses the beneficial ownership profile of specified Morgan Stanley reporting units, listing shared dispositive power figures of 5,933,802 and 5,854,678 shares with corresponding 9.3% and 9.2%.

These figures reflect holdings reported under the Release delineating "MS Reporting Units"; cash‑flow treatment and whether holdings are held for investment or other purposes are not stated in the excerpt. Subsequent filings or exhibits may clarify subsidiary attribution per Item 7.

Key Figures

Shared dispositive power - Morgan Stanley: 5,933,802 shares Percent of class - Morgan Stanley: 9.3% Shared dispositive power - MSSB: 5,854,678 shares +3 more

6 metrics

Shared dispositive power - Morgan Stanley 5,933,802 shares Listed on cover page as shared dispositive power

Percent of class - Morgan Stanley 9.3% Reported percent of class on Item 4/cover page

Shared dispositive power - MSSB 5,854,678 shares Listed on cover page for Morgan Stanley Smith Barney LLC

Percent of class - MSSB 9.2% Reported percent of class on Item 4/cover page

Signature date 05/11/2026 Signatures for both filers on the amendment

CUSIP 12811L107 CUSIP for Common Shares listed in Item 2(e)

Key Terms

Schedule 13G/A, Shared Dispositive Power, MS Reporting Units, Joint Filing Agreement

4 terms

Schedule 13G/A regulatory

"Item 1. Name of issuer: Calamos Global Dynamic Income Fund"

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.

Shared Dispositive Power financial

"Shared Dispositive Power 5,933,802.00 9.3 %"

MS Reporting Units regulatory

"this filing reflects the securities beneficially owned by certain operating units (collectively, the "MS Reporting Units")"

Joint Filing Agreement legal

"EXHIBIT NO. 99.1 Joint Filing Agreement"

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 5)

Calamos Global Dynamic Income Fund

(Name of Issuer)

Common Shares

(Title of Class of Securities)

12811L107

(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): 12811L107

1

Names of Reporting Persons

Morgan Stanley

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 79,126.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,933,802.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,933,802.00

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)

9.3 %

12

Type of Reporting Person (See Instructions)

HC, CO

SCHEDULE 13G

CUSIP Number(s): 12811L107

1

Names of Reporting Persons

Morgan Stanley Smith Barney 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 2.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,854,678.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,854,678.00

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)

9.2 %

12

Type of Reporting Person (See Instructions)

BD, IA, CO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Calamos Global Dynamic Income Fund
(b)	Address of issuer's principal executive offices: 2020 CALAMOS COURT, C/O CALAMOS ADVISORS LLC, NAPERVILLE, IL, 60563
Item 2.
(a)	Name of person filing: 1: Morgan Stanley 2: Morgan Stanley Smith Barney LLC
(b)	Address or principal business office or, if none, residence: 1: 1585 Broadway, New York, NY 10036 ;2: 1585 Broadway, New York, NY 10036
(c)	Citizenship: 1: Delaware 2: Delaware
(d)	Title of class of securities: Common Shares
(e)	CUSIP No.: 12811L107
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: See the response(s) to Item 9 on the attached cover page(s).
(b)	Percent of class: 9.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See the response(s) to Item 5 on the attached cover page(s).
	(ii) Shared power to vote or to direct the vote: See the response(s) to Item 6 on the attached cover page(s).
	(iii) Sole power to dispose or to direct the disposition of: See the response(s) to Item 7 on the attached cover page(s).
	(iv) Shared power to dispose or to direct the disposition of: See the response(s) to Item 8 on the attached cover page(s).
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. See Exhibit 99.2
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. * In Accordance with the Securities and Exchange Commission Release No. 34-39538 (January 12, 1998) (the "Release"), this filing reflects the securities beneficially owned, or that may be deemed to be beneficially owned, by certain operating units (collectively, the "MS Reporting Units") of Morgan Stanley and its subsidiaries and affiliates (collectively, "MS"). This filing does not reflect securities, if any, beneficially owned by any operating units of MS whose ownership of securities is disaggregated from that of the MS Reporting Units in accordance with the Release.

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.

Morgan Stanley

Signature:	Claire Gordon
Name/Title:	Authorized Signatory, Morgan Stanley
Date:	05/11/2026

Morgan Stanley Smith Barney LLC

Signature:	David Galasso
Name/Title:	Authorized Signatory, Morgan Stanley Smith Barney LLC
Date:	05/11/2026

Exhibit Information

EXHIBIT NO. EXHIBITS ------------------ ------------------------------------ 99.1 Joint Filing Agreement 99.2 Item 7 Information * Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).

FAQ

What does the CHW Schedule 13G/A disclose?

It discloses Morgan Stanley reporting units' ownership details. The filing lists 5,933,802 shares ( 9.3%) and 5,854,678 shares ( 9.2%) of common shares and signatures dated 05/11/2026.

Who filed the amendment for Calamos Global Dynamic Income Fund (CHW)?

The filing is made by Morgan Stanley and Morgan Stanley Smith Barney LLC, both listed with principal address 1585 Broadway, New York, NY, and signed on 05/11/2026.

What is the significance of “shared dispositive power” in this filing?

The filing reports the number of shares over which the filers have shared dispositive power, specifically 5,933,802 and 5,854,678 shares, indicating shared authority to direct dispositions of those shares.

Does the Schedule 13G/A show sole voting power for these filers?

The cover page data in the excerpt shows 0.00 sole voting power for the listed entities and instead reports shared voting/dispositive figures, as reflected in the Item 5–8 cover page entries.