GMAB SCHEDULE 13G: SEC filing

Darwin Global Management, Ltd. and related entities

Filed with the SEC on · accession 0000902664-26-004067

GMAB filed a SCHEDULE 13G (schedule 13g) with the SEC on Oct 5, 2026. Darwin Global Management, Ltd. and related entities filed a joint filing agreement as part of a Schedule 13G, indicating a passive ownership position in Genmab A/S. The stock moved +10.7% by the first close after the filing.

Summary of the filing

Darwin Global Management, Ltd. and related entities filed a joint filing agreement as part of a Schedule 13G, indicating a passive ownership position in Genmab A/S. The filing does not disclose any specific ownership percentage or shares owned.

Key details

FilerDarwin Global Management, Ltd.
FilerDarwin Global Master Fund, Ltd.
Subject companyGenmab A/S
Director and chief financial officer, darwin global management, ltd.John Legge
SignatoryDr. Abhishek Trehan

How GMAB stock reacted

Close before

$34.75

Oct 2, 2026

First close after

+10.73%

$38.48

5 trading days

+6.68%

$37.07

Since filing

+51.77%

$52.74

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Frequently asked questions

What did GMAB file with the SEC on Oct 5, 2026?

GMAB filed a SCHEDULE 13G (SEC filing). Darwin Global Management, Ltd. and related entities filed a joint filing agreement as part of a Schedule 13G, indicating a passive ownership position in Genmab A/S. The filing does not disclose any specific ownership percentage or shares owned.

How do I read a SCHEDULE 13G?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).

How did GMAB stock react to this filing?

GMAB closed at $34.75 before the filing and $38.48 on Oct 5, 2026 (+10.73%). Five trading days later: $37.07 (+6.68%).

Other GMAB SEC filings

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