ZENDESK INC

CUSIP: 98936J101 Class: COMMON STOCK

Altimeter Capital Management, LP's Holding History (CIK: 0001541617)

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

Q4 2015
Shares 500,000 Value ($000) $13,220 Avg Close — Range —
Q3 2015
Shares 1,200,000 Value ($000) $23,652 Avg Close — Range —
Q2 2015
Shares 350,000 Value ($000) $7,774 Avg Close — Range —
Q1 2015
Shares 175,000 Value ($000) $3,971 Avg Close — Range —