Updated Jul 16, 2026 · Last SEC filing 2025-12-30
Merus N.V. (MRUS) — no SEC Form 4 insider filings recorded in the last 90 days. InsiderAlpha tracks every MRUS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001651311 |
|---|
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| GENMAB A/S | Insider | P — Open-market purchase | 75.87M | $97.00 | $7.36B | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 1.05M | $97.00 | $102.12M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 3.0K | $97.00 | $289K | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 142.6K | $97.00 | $13.83M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 96.1K | $97.00 | $9.32M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 561.0K | $97.00 | $54.42M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 15.7K | $97.00 | $1.52M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 66.3K | $97.00 | $6.43M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 212.2K | $97.00 | $20.58M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 150.8K | $97.00 | $14.63M | SEC | |
| GENMAB A/S | Insider | P — Open-market purchase | 120.8K | $97.00 | $11.71M | SEC | |
| Lundberg Sven Ante | President, CEO & PEO | J — Other acquisition / disposition | 9.2K | $97.00 | $892K | SEC | |
| Lundberg Sven Ante | President, CEO & PEO | J — Other acquisition / disposition | 9.2K | $97.00 | $892K | SEC | |
| Lundberg Sven Ante | President, CEO & PEO | J — Other acquisition / disposition | 9.2K | $97.00 | $892K | SEC | |
| Lundberg Sven Ante | President, CEO & PEO | J — Other acquisition / disposition | 9.2K | $97.00 | $892K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Merus N.V. (MRUS). Updated in real time as new filings are submitted to the SEC.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MRUS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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