MERUS N V

CUSIP: N5749R100 Class: Common Stock

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

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

Q1 2020
Shares 1,715,962 Value ($000) $20,763 Avg Close — Range —
Q4 2019
Shares 1,718,200 Value ($000) $24,192 Avg Close — Range —
Q3 2019
Shares 165,600 Value ($000) $2,951 Avg Close — Range —