argenx SE - Depositary Receipt (Common Stock)
US ˙ NasdaqGS ˙ US04016X1019

SecurityARGX / argenx SE - Depositary Receipt (Common Stock)
InstitutionAWM Investment Company, Inc.
Latest Disclosed Ownership3,750 shares
Latest Disclosed Value $ 2,738,437
AWM Investment Company, Inc. ownership in ARGX / argenx SE - Depositary Receipt (Common Stock)

On May 15, 2026 - AWM Investment Company, Inc. filed a 13F-HR form disclosing ownership of 3,750 shares of argenx SE - Depositary Receipt (Common Stock) (US:ARGX) valued at $2,738,438 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,750 shares of argenx SE - Depositary Receipt (Common Stock). This represents a change in shares of 0.00% during the quarter. The current value of the position is $3,342,450 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)
2026-05-15 2026-03-31 13F argenx SE - ADR COM 04016X101 3,750 0 0.00 2,738 -13.16 0.3031
2026-02-13 2025-12-31 13F argenx SE - ADR common 04016X101 3,750 0 0.00 3,154 14.03 0.3045
2025-11-13 2025-09-30 13F argenx SE - ADR common 04016X101 3,750 -11,250 -75.00 2,766 -66.56 0.2593
2025-08-14 2025-06-30 13F argenx SE - ADR common 04016X101 15,000 -8,000 -34.78 8,268 -39.26 0.9272
2025-05-15 2025-03-31 13F argenx SE - ADR common 04016X101 23,000 -2,000 -8.00 13,613 -11.47 1.8750
2025-02-18 2024-12-31 13F argenx SE - ADR common 04016X101 25,000 0 0.00 15,375 13.45 1.8730
2024-11-14 2024-09-30 13F argenx SE - ADR common 04016X101 25,000 0 0.00 13,552 26.05 1.6418
2024-08-14 2024-06-30 13F argenx SE - ADR common 04016X101 25,000 0 0.00 10,751 9.22 1.4524
2024-05-16 2024-03-31 13F argenx SE - ADR common 04016X101 25,000 -5,000 -16.67 9,843 -13.75 1.2891
2024-02-14 2023-12-31 13F argenx SE - ADR common 04016X101 30,000 0 0.00 11,413 -22.62 1.5013
2023-11-14 2023-09-30 13F argenx SE - ADR common 04016X101 30,000 -15,000 -33.33 14,749 -15.90 2.1769
2023-08-11 2023-06-30 13F argenx SE - ADR common 04016X101 45,000 -5,000 -10.00 17,538 -5.86 2.3798
2023-05-12 2023-03-31 13F argenx SE - ADR common 04016X101 50,000 0 0.00 18,629 -1.65 2.5211
2023-02-14 2022-12-31 13F argenx SE - ADR common 04016X101 50,000 0 0.00 18,942 7.30 2.7312
2022-11-14 2022-09-30 13F argenx SE - ADR common 04016X101 50,000 0 0.00 17,652 -6.82 2.6840
2022-08-12 2022-06-30 13F argenx SE - ADR common 04016X101 50,000 0 0.00 18,944 20.16 2.9844
2022-05-13 2022-03-31 13F argenx SE - ADR common 04016X101 50,000 -30,000 -37.50 15,765 -43.73 2.0297
2022-02-14 2021-12-31 13F argenx SE - ADR common 04016X101 80,000 0 0.00 28,015 15.96 2.8102
2021-11-15 2021-09-30 13F argenx SE - ADR common 04016X101 80,000 0 0.00 24,160 0.31 2.3708
2021-08-13 2021-06-30 13F argenx SE - ADR common 04016X101 80,000 0 0.00 24,086 9.33 2.3772
2021-05-13 2021-03-31 13F argenx SE - ADR common 04016X101 80,000 0 0.00 22,031 -6.36 2.4613
2021-02-12 2020-12-31 13F argenx SE - ADR common 04016X101 80,000 0 0.00 23,527 12.02 2.9894
2020-11-13 2020-09-30 13F argenx SE - ADR common 04016X101 80,000 0 0.00 21,002 16.56 3.4403
2020-08-13 2020-06-30 13F argenx SE - ADR common 04016X101 80,000 0 0.00 18,018 70.98 3.1579
2020-05-15 2020-03-31 13F argenx SE - ADR common 04016X101 80,000 -15,000 -15.79 10,538 -30.89 2.7942
2020-02-13 2019-12-31 13F argenx SE - ADR common 04016X101 95,000 0 0.00 15,249 40.86 2.9794
2019-11-12 2019-09-30 13F argenx SE - ADR common 04016X101 95,000 0 0.00 10,826 -19.51 2.2972
2019-08-08 2019-06-30 13F argenx SE - ADR common 04016X101 95,000 0 0.00 13,450 13.41 2.5718
2019-05-14 2019-03-31 13F argenx SE - ADR common 04016X101 95,000 0 0.00 11,860 29.94 2.3342
2019-02-13 2018-12-31 13F argenx SE - ADR common 04016X101 95,000 0 0.00 9,127 26.68 1.9864
2018-11-09 2018-09-30 13F argenx SE - ADR common 04016X101 95,000 -5,000 -5.00 7,205 -13.05 1.1911
2018-08-09 2018-06-30 13F argenx SE - ADR common 04016X101 100,000 0 0.00 8,286 3.01 1.3832
2018-05-10 2018-03-31 13F argenx SE - ADR common 04016X101 100,000 0 0.00 8,044 27.40 1.5511
2018-02-13 2017-12-31 13F argenx SE - ADR common 04016X101 100,000 0 0.00 6,314 181.37 1.2253
2017-11-14 2017-09-30 13F argenx SE - ADR common 04016X101 100,000 0 0.00 2,244 5.80 0.3919
2017-08-30 2017-06-30 13F/A-1 argenx SE - ADR common 04016X101 100,000 100,000 2,121 0.3750
2017-08-14 2017-06-30 13F argenx SE - ADR common 04016X101 100,000 2,121 0.3750
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.