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* CALAMOS JOHN P SR (Last) (First) (Middle) 2020 CALAMOS COURT (Street) NAPERVILLE IL 60563 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 11/25/2019	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) X Director 10% Owner X Officer (give title below) Other (specify below) President and Chairman	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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)
Common Stock(1)	7,194.24	I	By Calamos Advisors LLC

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

1. Name and Address of Reporting Person* CALAMOS JOHN P SR (Last) (First) (Middle) 2020 CALAMOS COURT (Street) NAPERVILLE IL 60563 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner X Officer (give title below) Other (specify below) President and Chairman

1. Name and Address of Reporting Person* Calamos Advisors LLC (Last) (First) (Middle) 2020 CALAMOS COURT (Street) NAPERVILLE IL 60563 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Investment Adviser

Explanation of Responses:

1. THE SHARES DENOTED AS BENEFICIALLY OWNED IN THIS FORM 3 ARE NOT DIRECTLY HELD FOR THE INDIVIDUAL, PERSONAL ACCOUNTS OF JOHN P. CALAMOS, SR. THESE SHARES WERE PURCHASED BY CALAMOS ADVISORS LLC (CAL) PRIOR TO EFFECTIVENESS OF THE CALAMOS LONG/SHORT EQUITY & DYNAMIC INCOME TRUST'S REGISTRATION STATEMENT. CAL IS A WHOLLY OWNED SUBSIDIARY OF CALAMOS INVESTMENTS LLC (CILLC). JOHN P. CALAMOS, SR. IS THE CHAIRMAN AND GLOBAL CIO OF CALAMOS ASSET MANAGEMENT, INC., WHICH OWNS APPROXIMATELY 22% OF, AND IS THE SOLE MANAGER OF, CILLC. THE REMAINING INTEREST OF CILLC IS OWNED BY CALAMOS PARTNERS LLC (CPL) AND JOHN P. CALAMOS, SR. CALAMOS FAMILY PARTNERS, INC. (CFP) OWNS A CONTROLLING INTEREST IN CPL, AND JOHN P. CALAMOS, SR. OWNS A CONTROLLING INTEREST IN CFP. AS A RESULT, JOHN P. CALAMOS, SR. IS REQUIRED TO FILE THIS FORM 3 TO REFLECT INDIRECT BENEFICIAL OWNERSHIP OF SHARES OWNED BY CAL.

	/s/ John P. Calamos, Sr.	11/25/2019
	** 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.
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