NEWAMSTERDAM PHARMA COMPANY

Ticker: NAMSW CUSIP: N62509117 Class: *W EXP 99/99/999

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q4 2023
Shares 66,665 Value ($000) $745 Avg Close — Range —
Q3 2023
Shares 66,665 Value ($000) $617 Avg Close — Range —
Q2 2023
Shares 66,665 Value ($000) $793 Avg Close — Range —
Q1 2023
Shares 66,665 Value ($000) $884 Avg Close — Range —
Q4 2022
Shares 66,665 Value ($000) $727 Avg Close — Range —