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

SecurityARGX / argenx SE - Depositary Receipt (Common Stock)
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership711 shares
Latest Disclosed Value $ 519,193
Advisor Group Holdings, Inc. reports 10.23% increase in ownership of ARGX / argenx SE - Depositary Receipt (Common Stock)

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 711 shares of argenx SE - Depositary Receipt (Common Stock) (US:ARGX) valued at $519,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 645 shares of argenx SE - Depositary Receipt (Common Stock). This represents a change in shares of 10.23% during the quarter. The current value of the position is $633,729 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 SPONSORED ADR 04016X101 711 66 10.23 519 -4.24 0.0004
2026-02-17 2025-12-31 13F ARGENX SE SPONSORED ADR 04016X101 645 -651 -50.23 543 -42.77 0.0008
2025-11-14 2025-09-30 13F ARGENX SE SPONSORED ADR 04016X101 1,296 -652 -33.47 948 -12.96 0.0013
2025-09-04 2025-06-30 13F/A-1 RGENX SE SPONSORED ADR 04016X101 1,948 -118 -5.71 1,089 -10.97 0.0019
2025-08-13 2025-06-30 13F RGENX SE SPONSORED ADR 04016X101 2,790 724 1,641 0.0019
2025-05-12 2025-03-31 13F ARGENX SE SPONSORED ADR 04016X101 2,066 195 10.42 1,223 6.26 0.0027
2025-06-06 2024-12-31 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 1,871 -65 -3.36 1,151 9.63 0.0026
2025-02-07 2024-12-31 13F ARGENX SE SPONSORED ADR 04016X101 1,940 4 1,087 0.0028
2024-11-13 2024-09-30 13F ARGENX SE SPONSORED ADR 04016X101 1,936 1,352 231.51 1,049 317.93 0.0024
2024-08-13 2024-06-30 13F ARGENX SE SPONSORED ADR 04016X101 584 145 33.03 251 45.93 0.0006
2024-05-10 2024-03-31 13F ARGENX SE SPONSORED ADR 04016X101 439 -3,672 -89.32 173 -89.00 0.0004
2024-02-12 2023-12-31 13F ARGENX SE SPONSORED ADR 04016X101 4,111 -799 -16.27 1,563 -35.23 0.0027
2023-11-13 2023-09-30 13F ARGENX SE SPONSORED ADR 04016X101 4,910 2,605 113.02 2,414 169.01 0.0036
2023-08-21 2023-06-30 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 2,305 129 5.93 898 10.74 0.0016
2023-08-10 2023-06-30 13F ARGENX SE SPONSORED ADR 04016X101 2,305 129 898 0.0002
2023-05-12 2023-03-31 13F ARGENX SE SPONSORED ADR 04016X101 2,176 23 1.07 811 -0.61 0.0015
2023-02-10 2022-12-31 13F ARGENX SE SPONSORED ADR 04016X101 2,153 -21 -0.97 816 6.12 0.0017
2022-11-14 2022-09-30 13F ARGENX SE SPONSORED ADR 04016X101 2,174 -2,343 -51.87 768 -54.98 0.0018
2022-08-10 2022-06-30 13F ARGENX SE SPONSORED ADR 04016X101 4,517 2,947 187.71 1,706 244.65 0.0038
2022-05-04 2022-03-31 13F ARGENX SE SPONSORED ADR 04016X101 1,570 265 20.31 495 8.08 0.0010
2022-02-03 2021-12-31 13F ARGENX SE SPONSORED ADR 04016X101 1,305 130 11.06 458 29.75 0.0009
2021-11-05 2021-09-30 13F ARGENX SE SPONSORED ADR 04016X101 1,175 120 11.37 353 11.36 0.0007
2021-08-02 2021-06-30 13F ARGENX SE SPONSORED ADR 04016X101 1,055 -719 -40.53 317 -35.17 0.0007
2021-05-13 2021-03-31 13F ARGENX SE SPONSORED ADR 04016X101 1,774 206 13.14 489 5.84 0.0012
2021-02-10 2020-12-31 13F ARGENX SE SPONSORED ADR 04016X101 1,568 -29 -1.82 462 10.00 0.0012
2020-11-12 2020-09-30 13F ARGENX SE SPONSORED ADR 04016X101 1,597 88 5.83 420 23.89 0.0013
2020-08-14 2020-06-30 13F ARGENX SE SPONSORED ADR 04016X101 1,509 208 15.99 339 98.25 0.0011
2020-05-18 2020-03-31 13F ARGENX SE SPONSORED ADR 04016X101 1,301 1,301 171 0.0007
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.