[Form 3] Calamos Long/Short Equity & Dynamic Income Trust Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Hugh Armstrong filed an Initial Statement of Beneficial Ownership (Form 3) for Calamos Long/Short Equity & Dynamic Income Trust (CPZ) reporting that he does not beneficially own any securities of the issuer. The report records the triggering event date as 09/01/2025 and the filing is signed by an attorney-in-fact on 09/09/2025. The form indicates the reporter's relationship as an officer (and lists "Other") and confirms no direct or indirect ownership across the non-derivative and derivative tables.

Insights

Corporate Governance Analyst

Form 3 shows no beneficial ownership reported by the officer, so there is no immediate ownership signal.

The filing records an initial Section 16 disclosure for CPZ tied to an event on 09/01/2025, but both the non-derivative and derivative tables state no securities are beneficially owned. That means the officer has not reported any shares or options requiring public disclosure at the time of this filing.

This is a low-impact governance item: it confirms the absence of an officer stake rather than indicating a purchase or sale. Monitor any future Form 4 or amendment filings if ownership changes or if additional details about the reporter's role appear in subsequent disclosures.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Armstrong Hugh

(Last) (First) (Middle)

2020 CALAMOS COURT

(Street)

NAPERVILLE IL 60563

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/01/2025

3. Issuer Name and Ticker or Trading Symbol
Calamos Long/Short Equity & Dynamic Income Trust [ CPZ ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Trustee

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	s/ Tracey Quinn, by Power of Attorney for Hugh Armstrong, Attorney-in-Fact	09/09/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Hugh Armstrong report on Form 3 for CPZ?

He reported no beneficial ownership of any non-derivative or derivative securities as of the event date 09/01/2025.

What relationship to CPZ does the reporting person have?

The form lists the reporting person as an Officer and also marks "Other", indicating an officer role without additional disclosed ownership details.

When was the Form 3 filed and signed?

The event date is 09/01/2025 and the Form 3 was signed by power of attorney on 09/09/2025.

Does this Form 3 show any securities transactions?

No. Both the non-derivative and derivative tables state explicitly: "No securities are beneficially owned."

Should investors expect immediate market impact from this filing (CPZ)?

No. The filing discloses no holdings, so it is not an investor‑material ownership change. Future Form 4s would be relevant if ownership appears.