ZENDESK INC

CUSIP: 98936J101 Class: COMMON STOCK

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q1 2015
Shares 448,454 Value ($000) $10,175 Avg Close — Range —
Q4 2014
Shares 473,624 Value ($000) $11,542 Avg Close — Range —
Q3 2014
Shares 496,056 Value ($000) $10,710 Avg Close — Range —
Q2 2014
Shares 521,571 Value ($000) $9,065 Avg Close — Range —