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

SecurityARGX / argenx SE - Depositary Receipt (Common Stock)
InstitutionFmr Llc
Latest Disclosed Ownership5,532,356 shares
Ownership 10.00%
Fmr Llc ownership in ARGX / argenx SE - Depositary Receipt (Common Stock)

2023-02-09 - Fmr Llc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 5,532,356 shares of argenx SE - Depositary Receipt (Common Stock) (US:ARGX). This represents 9.999 percent ownership of the company. Previously, Fmr Llc had reported owning 4,876,317 shares, indicating an increase of 13.45 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2023-02-09 2023-02-09 13G/A 4,876,317 5,532,356 13.45 10.00 5.64

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 4,991,034 -601,285 -10.75 3,644,703 -22.50 0.0381
2026-02-17 2025-12-31 13F ARGENX SE SPONSORED ADR 04016X101 5,592,319 -100,027 -1.76 4,702,860 12.01 0.2398
2025-11-13 2025-09-30 13F ARGENX SE SPONSORED ADR 04016X101 5,692,346 268,838 4.96 4,198,447 40.44 0.2183
2025-08-14 2025-06-30 13F ARGENX SE SPONSORED ADR 04016X101 5,423,508 -239,699 -4.23 2,989,546 -10.81 0.1686
2025-05-12 2025-03-31 13F ARGENX SE SPONSORED ADR 04016X101 5,663,207 44,985 0.80 3,351,854 -2.99 0.2140
2025-02-13 2024-12-31 13F ARGENX SE SPONSORED ADR 04016X101 5,618,222 824,750 17.21 3,455,207 32.97 0.2062
2024-11-13 2024-09-30 13F ARGENX SE SPONSORED ADR 04016X101 4,793,472 1,265,486 35.87 2,598,445 71.27 0.1581
2024-08-13 2024-06-30 13F ARGENX SE SPONSORED ADR 04016X101 3,527,986 257,964 7.89 1,517,175 17.84 0.0971
2024-05-13 2024-03-31 13F ARGENX SE SPONSORED ADR 04016X101 3,270,022 -542,350 -14.23 1,287,473 -11.23 0.0864
2024-02-13 2023-12-31 13F ARGENX SE SPONSORED ADR 04016X101 3,812,372 -1,152,601 -23.21 1,450,341 -40.58 0.1114
2023-11-13 2023-09-30 13F ARGENX SE SPONSORED ADR 04016X101 4,964,973 -90,770 -1.80 2,440,930 23.88 0.2110
2023-08-11 2023-06-30 13F ARGENX SE SPONSORED ADR 04016X101 5,055,743 -177,755 -3.40 1,970,375 1.05 0.1652
2023-08-11 2023-03-31 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 5,233,498 24,329 0.47 1,949,897 -1.19 0.1784
2023-05-11 2023-03-31 13F ARGENX SE SPONSORED ADR 04016X101 5,233,498 24,329 1,949,897 0.1784
2023-02-13 2022-12-31 13F ARGENX SE SPONSORED ADR 04016X101 5,209,169 23,437 0.45 1,973,389 7.79 0.1960
2022-11-10 2022-09-30 13F ARGENX SE SPONSORED ADR 04016X101 5,185,732 211,389 4.25 1,830,823 -2.86 0.1909
2022-08-12 2022-06-30 13F ARGENX SE SPONSORED ADR 04016X101 4,974,343 294,228 6.29 1,884,680 27.72 0.1878
2022-05-13 2022-03-31 13F ARGENX SE SPONSORED ADR 04016X101 4,680,115 93,716 2.04 1,475,688 -8.12 0.1179
2022-02-14 2021-12-31 13F ARGENX SE SPONSORED ADR 04016X101 4,586,399 125,986 2.82 1,606,111 19.23 0.1186
2022-02-14 2021-09-30 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 4,460,413 -200,749 -4.31 1,347,043 -4.01 0.1068
2021-11-15 2021-09-30 13F ARGENX SE SPONSORED ADR 04016X101 4,460,413 -200,749 1,347,043 0.1068
2021-08-13 2021-06-30 13F ARGENX SE SPONSORED ADR 04016X101 4,661,162 -12,548 -0.27 1,403,336 9.03 0.1099
2021-05-14 2021-03-31 13F ARGENX SE SPONSORED ADR 04016X101 4,673,710 -40,487 -0.86 1,287,093 -7.16 0.1099
2021-02-08 2020-12-31 13F ARGENX SE SPONSORED ADR 04016X101 4,714,197 28,542 0.61 1,386,398 12.71 0.1233
2020-11-13 2020-09-30 13F ARGENX SE SPONSORED ADR 04016X101 4,685,655 7,800 0.17 1,230,078 16.75 0.1243
2020-08-24 2020-06-30 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 4,677,855 426,448 10.03 1,053,593 88.13 0.1158
2020-08-13 2020-06-30 13F ARGENX SE SPONSORED ADR 04016X101 4,677,855 426,448 1,053,593 25,883.6968
2020-05-14 2020-03-31 13F ARGENX SE SPONSORED ADR 04016X101 4,251,407 6,844 0.16 560,038 -17.80 0.0776
2020-02-07 2019-12-31 13F ARGENX SE SPONSORED ADR 04016X101 4,244,563 461,911 12.21 681,337 58.06 0.0752
2019-11-13 2019-09-30 13F ARGENX SE SPONSORED ADR 04016X101 3,782,652 101,722 2.76 431,071 -17.28 0.0517
2019-08-13 2019-06-30 13F ARGENX SE SPONSORED ADR 04016X101 3,680,930 -19,026 -0.51 521,146 12.83 0.0609
2019-05-13 2019-03-31 13F ARGENX SE SPONSORED ADR 04016X101 3,699,956 212,904 6.11 461,903 37.88 0.0553
2019-02-13 2018-12-31 13F ARGENX SE SPONSORED ADR 04016X101 3,487,052 12,003 0.35 335,001 27.11 0.0459
2018-11-09 2018-09-30 13F ARGENX SE SPONSORED ADR 04016X101 3,475,049 380,661 12.30 263,548 2.79 0.0296
2018-08-10 2018-06-30 13F ARGENX SE SPONSORED ADR 04016X101 3,094,388 14,791 0.48 256,400 3.50 0.0303
2018-05-14 2018-03-31 13F ARGENX SE SPONSORED ADR 04016X101 3,079,597 1,588,566 106.54 247,723 163.13 0.0294
2018-02-12 2017-12-31 13F ARGENX SE SPONSORED ADR 04016X101 1,491,031 737,139 97.78 94,144 456.51 0.0110
2017-11-13 2017-09-30 13F ARGENX SE SPONSORED ADR 04016X101 753,892 0 0.00 16,917 5.80 0.0020
2017-08-29 2017-06-30 13F/A-1 ARGENX SE SPONSORED ADR 04016X101 753,892 753,892 15,990 0.0020
2017-08-11 2017-06-30 13F ARGENX SE SPONSORED ADR 04016X101 753,892 15,990 0.0020
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.