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

1. Name and Address of Reporting Person *

Ciarfella Mark R 		2. Issuer Name and Ticker or Trading Symbol

SBA COMMUNICATIONS CORP [ SBAC ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
EVP - Operations
(Last)          (First)          (Middle)

C/O SBA COMMUNICATIONS CORPORATION, 8051 CONGRESS AVENUE 		3. Date of Earliest Transaction (MM/DD/YYYY)

8/4/2017
(Street)

BOCA RATON, FL 33487
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   8/4/2017     M    9655   A $96.58   21403   D    
Class A Common Stock   8/4/2017     S    9655   D $140.74   11748   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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)   $47.52                      (1) 3/6/2019   Class A Common Stock   1     1   D    
Stock Options (Right to Buy)   $95.53                      (2) 3/6/2021   Class A Common Stock   19792     19792   D    
Stock Options (Right to Buy)   $95.53                      (2) 3/6/2021   Class A Common Stock   7574     7574   D    
Restricted Stock Units     (3)                    (4)   (4) Class A Common Stock   769     769   D    
Stock Options (Right to Buy)   $124.59                      (5) 3/5/2022   Class A Common Stock   30069     30069   D    
Restricted Stock Units     (3)                    (6)   (6) Class A Common Stock   1505     1505   D    
Stock Options (Right to Buy)   $96.58   8/4/2017     M         9655      (7) 3/4/2023   Class A Common Stock   9655   $0.00   28965   D    
Restricted Stock Units     (3)                    (8)   (8) Class A Common Stock   2832     2832   D    
Stock Options (Right to Buy)   $115.17                      (9) 3/6/2024   Class A Common Stock   33508     33508   D    
Restricted Stock Units     (3)                    (10)   (10) Class A Common Stock   3439     3439   D    

Explanation of Responses:
(1)  These options are immediately exercisable.
(2)  These options vest in accordance with the following schedule: 7,573 vest on each of the first and the third anniversary of the grant date and 7,574 vest on each of the second and the fourth anniversary of the grant date (March 6, 2014).
(3)  Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.
(4)  These restricted stock units vest in accordance with the following schedule: 768 vest on each of the first through third anniversaries of the grant date and 769 vest on the fourth anniversary of the grant date (March 6, 2014).
(5)  These options vest in accordance with the following schedule: 7,517 vest on each of the first through third anniversaries of the grant date and 7,518 vest on the fourth anniversary of the grant date (March 5, 2015).
(6)  These restricted stock units vest in accordance with the following schedule: 752 vest on each of the first through third anniversaries of the grant date and 753 vest on the fourth anniversary of the grant date (March 5, 2015).
(7)  These options vest in accordance with the following schedule: 9,655 vest on each of the first through fourth anniversaries of the grant date (March 4, 2016).
(8)  These restricted stock units vest in accordance with the following schedule: 943 vest on the first anniversary of the grant date and 944 vest on each of the second through fourth anniversaries of the grant date (March 4, 2016).
(9)  These options vest in accordance with the following schedule: 8,377 vest on each of the first through fourth anniversaries of the grant date (March 6, 2017).
(10)  These restricted stock units vest in accordance with the following schedule: 859 vest on the first anniversary of the grant date and 860 vest on each of the second through fourth anniversaries of the grant date (March 6, 2017).

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Ciarfella Mark R
C/O SBA COMMUNICATIONS CORPORATION
8051 CONGRESS AVENUE
BOCA RATON, FL 33487

EVP - Operations

Signatures
/s/ Thomas P. Hunt, Attorney-in-Fact 8/7/2017
** 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 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).
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 control number.
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