Key facts
- This page summarizes Mark R. Ciarfella's Form 4 filing for SBA COMMUNICATIONS CORP (SBAC).
- 15 reported transactions and 9 derivative rows are listed below.
- Accepted by SEC: 09 Mar 2026, 18:30.
Mark R. Ciarfella - 05 Mar 2026 Form 4 Insider Report for SBA COMMUNICATIONS CORP (SBAC)
- Reporting relationship
- EVP - OPERATIONS
- Issuer ticker
- SBAC
- Reported as of
- 05 Mar 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 09 Mar 2026, 18:30:19 UTC
- Prior SEC filing
- 09 Dec 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Joshua Westerman, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Mark R. Ciarfella filed Form 4 for SBA COMMUNICATIONS CORP (SBAC) on 09 Mar 2026.
Change
- Previous filing in this sequence was filed on 09 Dec 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001504654
Primary reporting owner
Ciarfella Mark R
- Relationship
- EVP - OPERATIONS
- Address
- C/O SBA COMMUNICATIONS CORPORATION, 8051 CONGRESS AVENUE, BOCA RATON
- Signature
- /s/ Joshua Westerman, Attorney-in-Fact
- Signature date
- 09 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
SBAC
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +715
- Change %
- +1.9%
- Price
- $0.000000*
- Shares after
- 38,324
- Date
- 06 Mar 2026
- Ownership
- Direct
SBAC
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -265
- Change %
- -0.69%
- Price
- $195.69*
- Shares after
- 38,059
- Date
- 06 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
SBAC
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +4,288
- Change %
- +11%
- Price
- $0.000000*
- Shares after
- 42,347
- Date
- 06 Mar 2026
- Ownership
- Direct
- Footnotes
- F2
SBAC
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -1,664
- Change %
- -3.9%
- Price
- $195.69*
- Shares after
- 40,683
- Date
- 06 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
SBAC
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +1,532
- Change %
- +3.8%
- Price
- $0.000000*
- Shares after
- 42,215
- Date
- 06 Mar 2026
- Ownership
- Direct
SBAC
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -567
- Change %
- -1.3%
- Price
- $195.69*
- Shares after
- 41,649
- Date
- 06 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
SBAC
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +1,848
- Change %
- +4.4%
- Price
- $0.000000*
- Shares after
- 43,497
- Date
- 06 Mar 2026
- Ownership
- Direct
SBAC
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -676
- Change %
- -1.6%
- Price
- $195.69*
- Shares after
- 42,821
- Date
- 06 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
SBAC
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -715
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 06 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 715
- Exercise price
- Footnotes
- F3, F4
SBAC
transaction
Derivative
Performance Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -2,144
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 06 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 2,144
- Exercise price
- Footnotes
- F5, F6
SBAC
transaction
Derivative
Performance Restricted Stock Units
Disposed to Issuer
- Transaction value
- Shares
- -2,144
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 06 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 2,144
- Exercise price
- Footnotes
- F5, F7, F8
SBAC
transaction
Derivative
Restricted Stock units
Options Exercise
- Transaction value
- Shares
- -1,532
- Change %
- -50%
- Price
- $0.000000*
- Shares after
- 1,531
- Date
- 06 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 1,532
- Exercise price
- Footnotes
- F3, F9
SBAC
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -1,848
- Change %
- -33%
- Price
- $0.000000*
- Shares after
- 3,697
- Date
- 06 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 1,848
- Exercise price
- Footnotes
- F3, F11
SBAC
transaction
Derivative
Restricted Stock Units
Award
- Transaction value
- Shares
- +6,717
- Change %
- Price
- $0.000000*
- Shares after
- 6,717
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 6,717
- Exercise price
- Footnotes
- F3, F13
SBAC
transaction
Derivative
Performance Restricted Stock Units
Award
- Transaction value
- Shares
- +6,716
- Change %
- Price
- $0.000000*
- Shares after
- 6,716
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 6,716
- Exercise price
- Footnotes
- F5, F14
SBAC
holding
Derivative
Performance Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 4,771
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 4,771
- Exercise price
- Footnotes
- F5, F10
SBAC
holding
Derivative
Performance Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 5,760
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 5,760
- Exercise price
- Footnotes
- F5, F12
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 14 footnotes
Footnote F1
Shares withheld for payment of tax liability.
Footnote F2
As previously reported on a Form 4, the Reporting Person was awarded 2,144 performance restricted stock units ("PSUs") on March 6, 2023 which were subject to increase or decrease based on the results of the performance condition. On March 6, 2026, these PSUs vested at 200% of target based on the results of the performance condition, such that 4,288 shares of Class A Common Stock became issuable to the Reporting Person.
Footnote F3
Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock.
Footnote F4
These restricted stock units vest in accordance with the following schedule: 714 vested on the first anniversary of the grant date and 715 vested on the second and third anniversary of the grant date (March 6, 2023).
Footnote F5
Each performance restricted stock unit represents a contingent right to receive one share of Class A Common Stock.
Footnote F6
The performance restricted stock units have a three-year performance period and to the extent earned vest on March 6, 2026. The number of shares of Class A Common Stock that will be earned is subject to increase or decrease based on the results of the performance condition.
Footnote F7
The PSUs previously reported as acquired by the reporting person were forfeited because the minimum performance criteria required for vesting was not met.
Footnote F8
The performance restricted stock units have a three-year performance period and to the extent earned vest on March 6, 2026. The number of shares of Class A Common Stock that will be earned is subject to increase or decrease based on the results of the performance condition.
Footnote F9
These restricted stock units vest in accordance with the following schedule: 1,530 vested on the first anniversary, 1,532 vested on the second anniversary and 1,531 will vest on the third anniversary of the grant date (March 6, 2024).
Footnote F10
These performance restricted stock units will be earned based upon the Issuer's performance on each of three different financial metrics during the three-year performance period. Once earned, the performance restricted stock units will vest on March 6, 2027. The number of shares of Class A Common Stock that will be earned at the end of the three-year performance period is subject to decrease or increase (up to 200%) based on the results of the performance conditions.
Footnote F11
These restricted stock units will vest in accordance with the following schedule: 1,848 vested on the first anniversary, 1,849 vest on the second anniversary and 1,848 vest on the third anniversary of the grant date (March 6, 2025).
Footnote F12
These performance restricted stock units will be earned based upon the Issuer's performance on each of three different financial metrics during the three-year performance period. Once earned, the performance restricted stock units will vest on March 6, 2028. The number of shares of Class A Common Stock that will be earned is subject to decrease or increase (up to 200%) based on the results of the performance conditions.
Footnote F13
These restricted stock units vest in accordance with the following schedule: 2,239 vesting on the first through third anniversaries of the grant date (March 5, 2026).
Footnote F14
These performance restricted stock units will be earned based upon the Issuer's performance on each of three different financial metrics during the three-year performance period. Once earned, the performance restricted stock units will vest on March 5, 2029. The number of shares of Class A Common Stock that will be earned is subject to decrease or increase (up to 200%) based on the results of the performance conditions.