MRUS insider buying and SEC filings, explained
Merus N.V. · CIK 1651311
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$234.9M
Insiders who bought
1
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Dec 26–29, 2025 | Purchase (code P) | A/s Genmab (10% owner) bought 1,055,784 shares indirectly between Dec 26, 2025 and Dec 29, 2025 at $97.00 ($102.4M), reported as a purchase (code P). Indirect holdings up 1% to 73,884,293 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 30, 2025 |
| Dec 22–26, 2025 | Purchase (code P) | A/s Genmab (10% owner) bought 815,444 shares indirectly between Dec 22, 2025 and Dec 26, 2025 at $97.00 ($79.1M), reported as a purchase (code P). Indirect holdings up 1% to 72,828,509 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 29, 2025 |
| Dec 18–19, 2025 | Purchase (code P) | A/s Genmab (10% owner) bought 278,441 shares indirectly between Dec 18, 2025 and Dec 19, 2025 at $97.00 ($27.0M), reported as a purchase (code P). Indirect holdings up <1% to 72,013,065 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 22, 2025 |
| Dec 16–17, 2025 | Purchase (code P) | A/s Genmab (10% owner) bought 271,547 shares indirectly between Dec 16, 2025 and Dec 17, 2025 at $97.00 ($26.3M), reported as a purchase (code P). Indirect holdings up <1% to 71,734,624 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 18, 2025 |
17 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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