Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
NAHMAD ALBERT H
   2. Issuer Name and Ticker or Trading Symbol
WATSCO INC [WSO; WSOB] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman and CEO
(Last)
(First)
(Middle)
2665 S. BAYSHORE DRIVE, SUITE 901		 3. Date of Earliest Transaction (Month/Day/Year)
03/08/2018
(Street)

COCONUT GROVE, FL 33133		 4. If Amendment, Date 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
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common stock 03/08/2018   J   23 A $ 170.04 1,376 I See footnote (1)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Class B Common stock (2)               (2)   (2) Class B Common stock 2,215,053   2,215,053 D (3)  
Class B Common stock (2)               (3)   (3) Class B Common stock 524,875   524,875 I See footnote (4)
Class B Common stock (2)               (2)   (2) Class B Common stock 1,330,000   1,330,000 I See footnote (5)
Class B Common stock (2)               (2)   (2) Class B Common stock 266,467   266,467 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
NAHMAD ALBERT H
2665 S. BAYSHORE DRIVE
SUITE 901
COCONUT GROVE, FL 33133		   X     Chairman and CEO  

Signatures

 Albert H. Nahmad   03/12/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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).
(1) Ownership in Watsco, Inc. Profit Sharing Retirement Plan and Trust.
(2) The Class B Common Stock is convertible into Common Stock at any time on a one-for-one basis and has no expiration date.
(3) Award of stock pursuant to Watsco, Inc. Restricted Stock Agreement.
(4) Reflects 498,845 shares held by various trusts over which Mr. Nahmad maintains effective control and 26,030 shares held by custodial accounts for Mr. Nahmad's grandchildren, of which Mr. Nahmad is the custodian.
(5) Reflects shares owned by Albert Capital LP, a limited partnership, over which Mr. Nahmad maintains effective control.

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