Skip to main content
GMAB logo

GMAB · Genmab A/S

Track GMAB — free
$33.60 -0.81 (-2.35%) At close · Sep 4
Market Cap
$20.65B
Shares
614.62M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 294
Total Value: $2,942,673,979
Total Shares: 107,123,244
Showing 1–100 of 306 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 294 13F filers · Δ vs Mar 31, 2026
Top Holder
12.3%
Sep 2023 → Jun 2026 · range 12.3% – 33.5%
−3.5 pts
Top 5
45.4%
Sep 2023 → Jun 2026 · range 45.2% – 63.7%
−3.2 pts
Top 10
64.8%
Sep 2023 → Jun 2026 · range 62.8% – 75.9%
−3.5 pts
HHI
552
Sep 2023 → Jun 2026 · range 552 – 1,406
Broadly held−106

Quarterly Activity

vs Mar 31, 2026
New
49
Increased
105
Decreased
99
Sold Out
33
Unchanged
41
Holder count: +16
Institutional value: +33.3%
Shares held: +30.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 306
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1434265 CUSIP 372303206 13F (30d) 204 filings 198 filers Visit website Investor relations