Insider / Merus N.V.
GENMAB A/S
Insider at Merus N.V.
- Company
- Merus N.V.
- Ticker
- MRUS
- First filing on record
- December 18, 2025
- Latest trade on record
- December 29, 2025
- SEC filings
- EDGAR ↗
GENMAB A/S, Insider at Merus N.V., has disclosed 11 transactions in MRUS since December 18, 2025: 11 purchases (11 open-market buys) and 0 sales, worth about $7.59B at the reported prices. The latest was filed December 30, 2025, 1 day after the trade; 3 filings were late against the 2-business-day Form 4 deadline.
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
In the last 12 months GENMAB A/S made 11 purchases worth $7.6B and no sales. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
GENMAB A/S has traded 1 stock on record; the largest by dollars is MRUS.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
1 of 4 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| P | Open-market purchase | 11 | 78,288,415 | $7.59B |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2025 | 11 | 11 · $7.59B | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MRUS | Buy P | December 29, 2025 | December 30, 2025 | 1d | 75,867,199 | $97 | $7.36B | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 29, 2025 | December 30, 2025 | 1d | 1,052,806 | $97 | $102.1M | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 26, 2025 | December 30, 2025 | 4d | 2,978 | $97 | $289K | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 26, 2025 | December 29, 2025 | 3d | 142,610 | $97 | $13.8M | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 24, 2025 | December 29, 2025 | 5d | 96,082 | $97 | $9.3M | lateindirect | Form 4 ↗ | |
| MRUS | Buy P | December 23, 2025 | December 29, 2025 | 6d | 561,042 | $97 | $54.4M | lateindirect | Form 4 ↗ | |
| MRUS | Buy P | December 22, 2025 | December 29, 2025 | 7d | 15,710 | $97 | $1.5M | lateindirect | Form 4 ↗ | |
| MRUS | Buy P | December 19, 2025 | December 22, 2025 | 3d | 66,264 | $97 | $6.4M | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 18, 2025 | December 22, 2025 | 4d | 212,177 | $97 | $20.6M | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 17, 2025 | December 18, 2025 | 1d | 150,795 | $97 | $14.6M | indirect | Form 4 ↗ | |
| MRUS | Buy P | December 16, 2025 | December 18, 2025 | 2d | 120,752 | $97 | $11.7M | indirect | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| December 30, 2025 | Form 4 | 0001193125-25-337324 | 3 | published | EDGAR ↗ |
| December 29, 2025 | Form 4 | 0001193125-25-335521 | 4 | published | EDGAR ↗ |
| December 22, 2025 | Form 4 | 0001193125-25-328955 | 2 | published | EDGAR ↗ |
| December 18, 2025 | Form 4 | 0001193125-25-325265 | 2 | published | EDGAR ↗ |
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 4 | 11 | December 18, 2025 | December 30, 2025 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.