GENMAB A/S
SEC Form 4 insider trading activity
GENMAB A/S has filed 4 SEC Form 4 filings (11 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Dec 30, 2025.
On the most recent filing, GENMAB A/S is listed as 10% Owner at Merus N.V. Inside the rolling window, GENMAB A/S reported 9 open-market purchases totaling $7.6B in MRUS and no open-market sales. The largest disclosed transaction in the window is a purchase of 76,920,005 MRUS shares on Dec 29, 2025, worth $7.5B.
Companies traded
Other insiders at MRUS
Insider Buying
$7.6B
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| MRUS | 10% Owner | Purchase | 145,588 | $14.1M | Dec 30 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 76,920,005 | $7.5B | Dec 30 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 15,710 | $1.5M | Dec 29 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 561,042 | $54.4M | Dec 29 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 96,082 | $9.3M | Dec 29 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 212,177 | $20.6M | Dec 22 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 66,264 | $6.4M | Dec 22 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 120,752 | $11.7M | Dec 18 | SEC ↗ | |
| MRUS | 10% Owner | Purchase | 150,795 | $14.6M | Dec 18 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has GENMAB A/S made?
GENMAB A/S has filed 4 SEC Form 4 filings (11 transaction rows) across 1 company since 2025.
Which companies does GENMAB A/S trade?
GENMAB A/S has filed SEC Form 4 disclosures for 1 company, including MRUS.
When was GENMAB A/S's most recent SEC Form 4 filing?
GENMAB A/S's most recent SEC Form 4 filing on Tracefour is dated Dec 30, 2025.
What is GENMAB A/S's total buy and sell value in the current window?
Inside the rolling retention window, GENMAB A/S bought $7.6B and sold $0 based on SEC Form 4 filings.
What was GENMAB A/S's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 76,920,005 MRUS shares on 2025-12-29, worth $7.5B, per SEC Form 4 filings.