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 *
COCROFT DUNCAN
   2. Issuer Name and Ticker or Trading Symbol
SBA COMMUNICATIONS CORP [SBAC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O SBA COMMUNICATIONS CORPORATION, 8051 CONGRESS AVENUE		 3. Date of Earliest Transaction (Month/Day/Year)
05/01/2018
(Street)

BOCA RATON, FL 33487		 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
Class A Common Stock 05/01/2018   M   268 A (1) 87,734 D  

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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
Stock Options (Right to Buy) $ 50.35               (2) 05/17/2019 Class A Common Stock 1,643   1,643 D  
Stock Options (Right to Buy) $ 79.67               (2) 05/09/2020 Class A Common Stock 1,999   1,999 D  
Stock Options (Right to Buy) $ 96.8               (2) 05/08/2021 Class A Common Stock 2,202   2,202 D  
Stock Options (Right to Buy) $ 113.55               (3) 05/21/2022 Class A Common Stock 1,899   1,899 D  
Restricted Stock Units (4)               (5)   (5) Class A Common Stock 249   249 D  
Stock Options (Right to Buy) $ 100               (6) 05/13/2023 Class A Common Stock 2,308   2,308 D  
Restricted Stock Units (4)               (7)   (7) Class A Common Stock 605   605 D  
Stock Options (Right to Buy) $ 132               (8) 05/18/2024 Class A Common Stock 1,977   1,977 D  
Restricted Stock Units (4) 05/01/2018   M     268   (9)   (9) Class A Common Stock 268 (1) 539 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
COCROFT DUNCAN
C/O SBA COMMUNICATIONS CORPORATION
8051 CONGRESS AVENUE
BOCA RATON, FL 33487		   X      

Signatures

 /s/ Thomas P. Hunt, Attorney-in-Fact   05/03/2018
**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) On May 1, 2018, 268 of the Reporting Person's restricted stock units were settled for an equal number of Class A Common Stock.
(2) These options are exercisable immediately.
(3) These options vest in accordance with the following schedule: 633 vest on the earlier of May 21, 2016 or the day immediately prior to the 2016 annual meeting of shareholders; 633 vest on the earlier of May 21, 2017 or the day immediately prior to the 2017 annual meeting of shareholders; and 633 vest on the earlier of May 21, 2018 or the day immediately prior to the 2018 annual meeting of shareholders.
(4) Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.
(5) These restricted stock units vest in accordance with the following schedule: 249 vest on the earlier of May 21, 2016 or the day immediately prior to the 2016 annual meeting of shareholders; 249 vest on the earlier of May 21, 2017 or the day immediately prior to the 2017 annual meeting of shareholders; and 249 vest on the earlier of May 21, 2018 or the day immediately prior to the 2018 annual meeting of shareholders.
(6) These options vest in accordance with the following schedule: 769 vest on the earlier of May 13, 2017 or the day immediately prior to the 2017 annual meeting of shareholders; 769 vest on the earlier of May 13, 2018 or the day immediately prior to the 2018 annual meeting of shareholders; and 770 vest on the earlier of May 13, 2019 or the day immediately prior to the 2019 annual meeting of shareholders.
(7) These restricted stock units vest in accordance with the following schedule: 302 vest on the earlier of May 13, 2017 or the day immediately prior to the 2017 annual meeting of shareholders; 302 vest on the earlier of May 13, 2018 or the day immediately prior to the 2018 annual meeting of shareholders; and 303 vest on the earlier of May 13, 2019 or the day immediately prior to the 2019 annual meeting of shareholders.
(8) These options vest in accordance with the following schedule: 658 vest on May 1, 2018; 659 vest on May 1, 2019; and 660 vest on May 1, 2020.
(9) These restricted stock units vest in accordance with the following schedule: 268 vest on May 1, 2018; 269 vest on May 1, 2019; and 270 vest on May 1, 2020.

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