ZENDESK INC

CUSIP: 98936J101 Class: COMMON STOCK

BOKF, NA's Holding History (CIK: 0000009634)

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

Q3 2021
Shares 19,313 Value ($000) $2,248 Avg Close — Range —
Q1 2021
Shares 26,743 Value ($000) $3,547 Avg Close — Range —
Q4 2020
Shares 26,520 Value ($000) $3,795 Avg Close — Range —
Q3 2020
Shares 31,650 Value ($000) $3,257 Avg Close — Range —
Q2 2020
Shares 43,139 Value ($000) $3,819 Avg Close — Range —
Q1 2020
Shares 30,185 Value ($000) $1,932 Avg Close — Range —
Q4 2019
Shares 31,427 Value ($000) $2,408 Avg Close — Range —
Q3 2019
Shares 38,421 Value ($000) $2,800 Avg Close — Range —
Q2 2019
Shares 18,189 Value ($000) $1,620 Avg Close — Range —
Q1 2019
Shares 21,645 Value ($000) $1,840 Avg Close — Range —
Q4 2018
Shares 20,814 Value ($000) $1,215 Avg Close — Range —