Donald Day - 05 Mar 2026 Form 4 Insider Report for SBA COMMUNICATIONS CORP (SBAC)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
09 Mar 2026, 18:30:10 UTC
Prior SEC filing
20 Feb 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Joshua Westerman, Attorney-in-Fact

Key filing fact

Donald Day filed Form 4 for SBA COMMUNICATIONS CORP (SBAC) on 09 Mar 2026.

Key facts

  • This page summarizes Donald Day's Form 4 filing for SBA COMMUNICATIONS CORP (SBAC).
  • 15 reported transactions and 10 derivative rows are listed below.
  • Accepted by SEC: 09 Mar 2026, 18:30.

Change

  • Previous filing in this sequence was filed on 20 Feb 2026.
  • 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

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002031697 Primary reporting owner

DAY DONALD

Relationship
EVP - SITE LEASING
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
+270
Change %
+3.7%
Price
$0.000000*
Shares after
7,601
Date
06 Mar 2026
Ownership
Direct
SBAC transaction

Class A Common Stock

Tax liability

Transaction value
Shares
-101
Change %
-1.3%
Price
$195.69*
Shares after
7,500
Date
06 Mar 2026
Ownership
Direct
Footnotes
F1
SBAC transaction

Class A Common Stock

Options Exercise

Transaction value
Shares
+1,618
Change %
+22%
Price
$0.000000*
Shares after
9,118
Date
06 Mar 2026
Ownership
Direct
Footnotes
F2
SBAC transaction

Class A Common Stock

Tax liability

Transaction value
Shares
-604
Change %
-6.6%
Price
$195.69*
Shares after
8,514
Date
06 Mar 2026
Ownership
Direct
Footnotes
F1
SBAC transaction

Class A Common Stock

Options Exercise

Transaction value
Shares
+555
Change %
+6.5%
Price
$0.000000*
Shares after
9,069
Date
06 Mar 2026
Ownership
Direct
SBAC transaction

Class A Common Stock

Tax liability

Transaction value
Shares
-207
Change %
-2.3%
Price
$195.69*
Shares after
8,862
Date
06 Mar 2026
Ownership
Direct
Footnotes
F1
SBAC transaction

Class A Common Stock

Options Exercise

Transaction value
Shares
+1,348
Change %
+15%
Price
$0.000000*
Shares after
10,210
Date
06 Mar 2026
Ownership
Direct
SBAC transaction

Class A Common Stock

Tax liability

Transaction value
Shares
-503
Change %
-4.9%
Price
$195.69*
Shares after
9,706
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
-270
Change %
-100%
Price
$0.000000*
Shares after
0
Date
06 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
270
Exercise price
Footnotes
F3, F4
SBAC transaction Derivative

Performance Restricted Stock Units

Options Exercise

Transaction value
Shares
-809
Change %
-100%
Price
$0.000000*
Shares after
0
Date
06 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
809
Exercise price
Footnotes
F2, F5, F6
SBAC transaction Derivative

Performance Restricted Stock Units

Disposed to Issuer

Transaction value
Shares
-809
Change %
-100%
Price
$0.000000*
Shares after
0
Date
06 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
809
Exercise price
Footnotes
F5, F7, F8
SBAC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-555
Change %
-50%
Price
$0.000000*
Shares after
555
Date
06 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
555
Exercise price
Footnotes
F3, F9
SBAC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares
-1,348
Change %
-33%
Price
$0.000000*
Shares after
2,697
Date
06 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
1,348
Exercise price
Footnotes
F3, F12
SBAC transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares
+5,005
Change %
Price
$0.000000*
Shares after
5,005
Date
05 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
5,005
Exercise price
Footnotes
F3, F14
SBAC transaction Derivative

Performance Restricted Stock Units

Award

Transaction value
Shares
+5,005
Change %
Price
$0.000000*
Shares after
5,005
Date
05 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
5,005
Exercise price
Footnotes
F5, F15
SBAC holding Derivative

Performance Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
1,665
Date
05 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
1,665
Exercise price
Footnotes
F5, F10
SBAC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
914
Date
05 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
914
Exercise price
Footnotes
F3, F11
SBAC holding Derivative

Performance Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
4,045
Date
05 Mar 2026
Ownership
Direct
Underlying class
Class A Common Stock
Underlying amount
4,045
Exercise price
Footnotes
F5, F13
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 15 footnotes

Footnote F1

Shares withheld for payment of tax liability.

Footnote F2

As previously reported on a Form 4, the Reporting Person was awarded 809 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 1618 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: 269 vested on the first anniversary of the grant date and 270 vested on the second anniversary and 270 vested on the 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

These performance restricted stock units have a three-year performance period and to the extent earned will vest on March 6, 2026. The number of shares of Class A Common Stock that will be earned is subject to increase (up to 200%) 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

These performance restricted stock units have a three-year performance period and to the extent earned will vest on March 6, 2026. The number of shares of Class A Common Stock that will be earned is subject to increase (up to 200%) or decrease based on the results of the performance condition.

Footnote F9

These restricted stock units vest in accordance with the following schedule: 555 vested on the first and second anniversary and 555 will vest on the third anniversaries 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 vest in accordance with the following schedule: 456 vest on the first anniversary of the grant date and 457 vest on the second and third anniversaries of the grant date (August 1, 2024).

Footnote F12

These restricted stock units vest in accordance with the following schedule: 1,348 vested on the first anniversary; 1,348 will vest on the second anniversary of the grant date and 1,349 vest on the third anniversary of the grant date (March 6, 2025).

Footnote F13

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 F14

These restricted stock units vest in accordance with the following schedule: 1,668 will vest on the first and second anniversaries and 1,669 will vest on the third anniversary of the grant date (March 5, 2026).

Footnote F15

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.

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