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ARGX · Argenx SE

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$1,023.21 -35.69 (-3.37%) At close · Aug 28
Market Cap
$63.63B
Shares
62.19M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 508
Total Value: $26,534,840,468
Total Shares: 28,600,686
Showing 1–100 of 523 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 508 13F filers · Δ vs Mar 31, 2026
Top Holder
18.3%
Sep 2023 → Jun 2026 · range 11.2% – 18.5%
+1.2 pts
Top 5
49.3%
Sep 2023 → Jun 2026 · range 42.5% – 52.8%
−0.7 pts
Top 10
63.5%
Sep 2023 → Jun 2026 · range 57.1% – 65.9%
−0.6 pts
HHI
647
Sep 2023 → Jun 2026 · range 471 – 727
Broadly held−1

Quarterly Activity

vs Mar 31, 2026
New
84
Increased
182
Decreased
164
Sold Out
56
Unchanged
78
Holder count: +28
Institutional value: +24.1%
Shares held: -2.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 523
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1697862 CUSIP 04016X101 13F (30d) 397 filings 386 filers Visit website