v3.25.2

Insider Trading Arrangements - Other Director or Officer [Member]	3 Months Ended
	Jun. 30, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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-Name Regulation S-K
-Number 229
-Section 408
-Subsection a
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Merus N.V. 10-Q