ZENDESK INC

CUSIP: 98936J101 Class: COMMON STOCK

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q4 2021
Shares 65,000 Value ($000) $6,779 Avg Close — Range —
Q3 2021
Shares 4,000 Value ($000) $466 Avg Close — Range —
Q2 2021
Shares 160,000 Value ($000) $23,094 Avg Close — Range —
Q1 2021
Shares 175,000 Value ($000) $23,209 Avg Close — Range —
Q4 2020
Shares 64,500 Value ($000) $9,231 Avg Close — Range —
Q3 2020
Shares 68,650 Value ($000) $7,065 Avg Close — Range —
Q1 2020
Shares 95,000 Value ($000) $6,082 Avg Close — Range —
Q4 2019
Shares 173,000 Value ($000) $13,257 Avg Close — Range —
Q3 2019
Shares 155,000 Value ($000) $11,295 Avg Close — Range —
Q2 2019
Shares 172,500 Value ($000) $15,356 Avg Close — Range —
Q1 2019
Shares 186,000 Value ($000) $15,812 Avg Close — Range —
Q4 2018
Shares 152,500 Value ($000) $8,898 Avg Close — Range —
Q3 2018
Shares 4,000 Value ($000) $284 Avg Close — Range —
Q2 2017
Shares 175,000 Value ($000) $4,862 Avg Close — Range —
Q1 2017
Shares 235,000 Value ($000) $6,589 Avg Close — Range —
Q2 2016
Shares 10,000 Value ($000) $264 Avg Close — Range —