Comparable stake leader
BlackRock, Inc.
SEC ownership of GENMAB A/S
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001434265.
Disclosed value leader
Orbis Allan Gray Ltd
Comparable rows
2/50
Latest evidence
31 Mar 2026
- Public ticker
- GMAB on Nasdaq, GNMSF on OTC
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
2 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001434265
- Issuer location
- 1253 Copenhagen K, Denmark
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of GENMAB A/S (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
Orbis Allan Gray Ltd
Comparable rows
2/50
Latest evidence
31 Mar 2026
13F
13D/G
Lead comparable stake: 5.6%
48 rows are not safely comparable across share classes.
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 5.6%.
2 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 2
BlackRock, Inc.
5.6%
ORBIS INVESTMENT MANAGEMENT LTD
5.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
5.6%
from 13D/G
|
$121,716,030
4,536,565 shares
|
— | 31 Mar 2026 |
| ORBIS INVESTMENT MANAGEMENT LTD |
13D/G
|
5.5%
|
—
3,549,674 shares
|
$0 | 31 Mar 2026 |
| Orbis Allan Gray Ltd |
13F
Company
|
—
class O/S missing
|
$346,793,258
12,925,578 shares
|
— | 31 Mar 2026 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
—
class O/S missing
|
$294,360,189
9,557,149 shares
|
— | 31 Mar 2026 |
| Paradigm Biocapital Advisors LP |
13F
Company
|
—
class O/S missing
|
$213,777,040
7,967,836 shares
|
— | 31 Mar 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
Company
|
—
class O/S missing
|
$133,487,943
4,975,324 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
—
class O/S missing
|
$118,442,377
4,414,550 shares
|
— | 31 Mar 2026 |
| Deep Track Capital, LP |
13F
Company
|
—
class O/S missing
|
$98,284,998
3,663,250 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 25 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Recent insider transactions for GENMAB A/S
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.