ZENDESK INC

CUSIP: 98936J101 Class: COMMON STOCK

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021
Shares 14,446 Value ($000) $1,916 Avg Close — Range —
Q4 2020
Shares 20,240 Value ($000) $2,897 Avg Close — Range —
Q3 2020
Shares 21,972 Value ($000) $2,261 Avg Close — Range —
Q2 2020
Shares 23,153 Value ($000) $2,050 Avg Close — Range —
Q1 2020
Shares 21,757 Value ($000) $1,393 Avg Close — Range —
Q4 2018
Shares 11,879 Value ($000) $693 Avg Close — Range —
Q3 2018
Shares 32,100 Value ($000) $2,279 Avg Close — Range —
Q2 2018
Shares 10,300 Value ($000) $561 Avg Close — Range —
Q1 2018
Shares 27,100 Value ($000) $1,297 Avg Close — Range —