SBA COMMUNICATIONS CORP

CUSIP: 78388J106 Class: COMMON STOCK

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

Note: Option positions (PUT/CALL) are excluded.

Q3 2016

Shares 2,670,130 Value ($000) $299,482 Avg Close — Range —

Q2 2016

Shares 2,249,797 Value ($000) $242,843 Avg Close — Range —

Q1 2016

Shares 2,210,743 Value ($000) $221,450 Avg Close — Range —

Q4 2015

Shares 2,198,824 Value ($000) $231,030 Avg Close — Range —

Q3 2015

Shares 2,029,529 Value ($000) $212,573 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	2,670,130	$299,482	—	—
Q2 2016	2,249,797	$242,843	—	—
Q1 2016	2,210,743	$221,450	—	—
Q4 2015	2,198,824	$231,030	—	—
Q3 2015	2,029,529	$212,573	—	—