HORTONWORKS INC

CUSIP: 440894103 Class: COM

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

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

Q4 2015
Shares 434,277 Value ($000) $9,511 Avg Close — Range —
Q3 2015
Shares 150,328 Value ($000) $3,291 Avg Close — Range —