Y-MABS THERAPEUTICS INC

CUSIP: 984241109 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q3 2022
Shares 297,252 Value ($000) $4,286 Avg Close — Range —
Q1 2021
Shares 352,717 Value ($000) $10,666 Avg Close — Range —
Q4 2020
Shares 284,868 Value ($000) $14,104 Avg Close — Range —
Q3 2020
Shares 298,213 Value ($000) $11,448 Avg Close — Range —
Q2 2020
Shares 333,860 Value ($000) $14,423 Avg Close — Range —
Q1 2020
Shares 444,436 Value ($000) $11,600 Avg Close — Range —
Q4 2019
Shares 447,242 Value ($000) $13,976 Avg Close — Range —
Q3 2019
Shares 207,089 Value ($000) $5,397 Avg Close — Range —
Q2 2019
Shares 199,843 Value ($000) $4,570 Avg Close — Range —