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ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in ARGX — Argenx SE

CIK 1165408 Boston, MA

Position in ARGX

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$65,722,500
-$98,052,127 QoQ
Shares Held
90,000
-69.7% QoQ
Ownership
0.145%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2020
13 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ARGX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $4,593,636,445 across 120 Biotechnology names. ARGX ranks #16 (1.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ARGX

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13 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $65,722,500 90,000
2025-06-30 $163,774,627 297,113
2025-03-31 $82,054,388 138,637
2024-12-31 $55,219,005 89,787
2024-09-30 $91,496,056 168,787
2024-06-30 $45,802,270 106,507
2023-12-31 $41,448,228 108,951
2023-09-30 $52,088,690 105,951
2023-06-30 $59,549,185 152,796
2023-03-31 $125,334,421 336,396
2022-12-31 $108,874,226 287,396
2020-12-31 $10,293,150 35,000
2020-09-30 $6,563,000 25,000