Y-MABS THERAPEUTICS INC

CUSIP: 984241109 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q2 2024
Shares 82,202 Value ($000) $993 Avg Close — Range —
Q1 2024
Shares 79,442 Value ($000) $1,292 Avg Close — Range —
Q4 2023
Shares 79,617 Value ($000) $543 Avg Close — Range —
Q3 2023
Shares 82,131 Value ($000) $448 Avg Close — Range —
Q2 2023
Shares 22,930 Value ($000) $156 Avg Close — Range —