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 *
Cavanagh Brendan Thomas
  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)
Executive Vice President & CFO
(Last)
(First)
(Middle)
C/O SBA COMMUNICATIONS CORPORATION, 8051 CONGRESS AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
03/04/2018
(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 03/04/2018   M   1,668 A (1) 48,370 D  
Class A Common Stock 03/05/2018   M   1,361 A (2) 49,731 D  
Class A Common Stock 03/06/2018   M   1,537 A (3) 51,268 D  
Class A Common Stock 03/06/2018   M   1,543 A (4) 52,811 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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) $ 47.52               (5) 03/06/2019 Class A Common Stock 28,999   28,999 D  
Stock Options (Right to Buy) $ 72.99               (5) 03/06/2020 Class A Common Stock 47,199   47,199 D  
Stock Options (Right to Buy) $ 95.53               (5) 03/06/2021 Class A Common Stock 60,588   60,588 D  
Restricted Stock Units (6) 03/06/2018   M     1,537   (7)   (7) Class A Common Stock 1,537 (3) 0 D  
Stock Options (Right to Buy) $ 124.59               (8) 03/05/2022 Class A Common Stock 54,411   54,411 D  
Restricted Stock Units (6) 03/05/2018   M     1,361   (9)   (9) Class A Common Stock 1,361 (2) 1,362 D  
Stock Options (Right to Buy) $ 96.58               (10) 03/04/2023 Class A Common Stock 68,258   68,258 D  
Restricted Stock Units (6) 03/04/2018   M     1,668   (11)   (11) Class A Common Stock 1,668 (1) 3,336 D  
Stock Options (Right to Buy) $ 115.17               (12) 03/06/2024 Class A Common 60,163   60,163 D  
Restricted Stock Units (6) 03/06/2018   M     1,543   (13)   (13) Class A Common Stock 1,543 (4) 4,632 D  
Stock Options (Right to Buy) $ 156.5 03/06/2018   A   50,212     (14) 03/06/2025 Class A Common Stock 50,212 $ 0 50,212 D  
Restricted Stock Units (6) 03/06/2018   A   5,234     (15)   (15) Class A Common Stock 5,234 $ 0 5,234 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Cavanagh Brendan Thomas
C/O SBA COMMUNICATIONS CORPORATION
8051 CONGRESS AVENUE
BOCA RATON, FL 33487
      Executive Vice President & CFO  

Signatures

 /s/ Thomas P. Hunt, Attorney-in-Fact   03/06/2018
**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 March 4, 2018, 1,668 of the Reporting Person's restricted stock units were settled for an equal number of shares of Class A Common Stock.
(2) On March 5, 2018, 1,361 of the Reporting Person's restricted stock units were settled for an equal number of shares of Class A Common Stock.
(3) On March 6, 2018, 1,537 of the Reporting Person's restricted stock units were settled for an equal number of shares of Class A Common Stock.
(4) On March 6, 2018, 1,543 of the Reporting Person's restricted stock units were settled for an equal number of shares of Class A Common Stock.
(5) These options are immediately exercisable.
(6) Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.
(7) These restricted stock units vest in accordance with the following schedule: 1,536 vest on each of the first and third anniversary of the grant date and 1,537 vest on each of the second and fourth anniversary of the grant date (March 6, 2014).
(8) These options vest in accordance with the following schedule: 13,602 vest on the first anniversary of the grant date and 13,603 vest on each of the second through fourth anniversaries of the grant date (March 5, 2015).
(9) These restricted stock units vest in accordance with the following schedule: 1,361 vest on each of the first and third anniversary of the grant date and 1,362 vest on each of the second and fourth anniversary of the grant date (March 5, 2015).
(10) These options vest in accordance with the following schedule: 17,064 vest on each of the first and third anniversary of the grant date and 17,065 vest on each of the second and fourth anniversary of the grant date (March 4, 2016).
(11) These restricted stock units vest in accordance with the following schedule: 1,668 vest on each of the first through fourth anniversaries of the grant date (March 4, 2016).
(12) These options vest in accordance with the following schedule: 15,040 vest on the first anniversary of the grant date and 15,041 vest on each of the second through fourth anniversaries of the grant date (March 6, 2017).
(13) These restricted stock units vest in accordance with the following schedule: 1,543 vest on the first anniversary of the grant date and 1,544 vest on each of the second through fourth anniversaries of the grant date (March 6, 2017).
(14) These options vest in accordance with the following schedule: 12,553 vest on each of the first through fourth anniversaries of the grant date (March 6, 2018).
(15) These restricted stock units vest in accordance with the following schedule: 1,308 vest on each of the first and the third anniversaries of the grant date, and 1,309 vest on each of the second and the fourth anniversaries of the grant date (March 6, 2018).

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