Genmab A/S - 預託証券(普通株式)
US ˙ NasdaqGS ˙ US3723032062

SecurityGMAB / Genmab A/S - Depositary Receipt (Common Stock)
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership15,000 shares
Latest Disclosed Value $ 402,450
Marshall Wace, Llp reports 95.82% decrease in ownership of GMAB / Genmab A/S - Depositary Receipt (Common Stock)

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 15,000 shares of Genmab A/S - Depositary Receipt (Common Stock) (US:GMAB) valued at $402,450 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 358,440 shares of Genmab A/S - Depositary Receipt (Common Stock). This represents a change in shares of -95.82% during the quarter. The current value of the position is $377,250 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F GENMAB A ADR 372303206 15,000 -343,440 -95.82 402 -96.36 0.0002
2026-02-13 2025-12-31 13F GENMAB A ADR 372303206 358,440 -174,769 -32.78 11,040 -32.50 0.0100
2025-11-13 2025-09-30 13F GENMAB A ADR 372303206 533,209 -1,374,075 -72.04 16,354 -58.50 0.0166
2025-08-13 2025-06-30 13F GENMAB A ADR 372303206 1,907,284 -274,226 -12.57 39,404 -7.75 0.0444
2025-05-15 2025-03-31 13F GENMAB A ADR 372303206 2,181,510 1,059,214 94.38 42,714 82.36 0.0542
2025-02-13 2024-12-31 13F GENMAB A ADR 372303206 1,122,296 694,243 162.19 23,422 124.46 0.0282
2024-11-14 2024-09-30 13F GENMAB A ADR 372303206 428,053 -220,326 -33.98 10,436 -35.95 0.0127
2024-08-14 2024-06-30 13F GENMAB A ADR 372303206 648,379 -301,046 -31.71 16,294 -42.62 0.0218
2024-05-15 2024-03-31 13F GENMAB A ADR 372303206 949,425 734,017 340.76 28,397 314.07 0.0432
2024-02-14 2023-12-31 13F GENMAB A ADR 372303206 215,408 4,609 2.19 6,859 -7.75 0.0116
2023-11-14 2023-09-30 13F GENMAB A ADR 372303206 210,799 210,799 7,435 0.0151
2023-05-15 2023-03-31 13F GENMAB A ADR 372303206 0 -8,259 -100.00 0 -100.00
2023-02-14 2022-12-31 13F GENMAB A ADR 372303206 8,259 8,259 350 0.0008
2021-08-13 2021-06-30 13F GENMAB A ADR 372303206 0 -8,595 -100.00 0 -100.00
2021-05-17 2021-03-31 13F GENMAB A ADR 372303206 8,595 -57,447 -86.99 282 -89.50 0.0013
2021-02-16 2020-12-31 13F GENMAB A ADR 372303206 66,042 -158,987 -70.65 2,685 -67.41 0.0145
2020-11-16 2020-09-30 13F GENMAB A ADR 372303206 225,029 -291,274 -56.42 8,238 -52.92 0.0527
2020-08-13 2020-06-30 13F GENMAB A ADR 372303206 516,303 279,003 117.57 17,498 248.01 0.1226
2020-05-15 2020-03-31 13F GENMAB A ADR 372303206 237,300 237,300 5,028 0.0502
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.