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Equibles

CITADEL ADVISORS LLC

Position in ARGX — Argenx SE

CIK 1423053 MIAMI, FL
Back to ARGX Full portfolio

Position in ARGX

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$160,016,761
-$135,031,386 QoQ
Shares Held
219,126
-37.5% QoQ
Ownership
0.350%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 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)

Derivatives in ARGX

reported options exposure · as of Mar 31, 2026
CallValue
$30,378,400
CallShares
41,600
PutValue
$21,542,375
PutShares
29,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $5,783,571,443 across 373 Biotechnology names. ARGX ranks #9 (2.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 INSM
INSMED Inc
 2,182,571 $356,894,009
2 ONC
BeOne Medicines Ltd.
 1,032,298 $306,561,536
3 BMRN
Biomarin Pharmaceutical Inc
 4,512,634 $254,918,694
4 JAZZ
Jazz Pharmaceuticals plc
 1,259,444 $238,097,887
5 MDGL
Madrigal Pharmaceuticals, Inc.
 453,843 $237,573,195
6 BBIO
BridgeBio Pharma, Inc.
 3,173,940 $235,696,783
7 TERN
Terns Pharmaceuticals, Inc.
 3,218,810 $169,695,662
8 PTGX
Protagonist Therapeutics, Inc
 1,551,900 $163,570,260

All Filings in ARGX

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $160,016,761 219,126
2026-03-31 $30,378,400 41,600
2026-03-31 $21,542,375 29,500
2025-12-31 $22,369,270 26,600
2025-12-31 $295,048,147 350,851
2025-12-31 $20,266,895 24,100
2025-09-30 $23,970,700 32,500
2025-09-30 $19,840,364 26,900
2025-09-30 $526,292,576 713,559
2025-06-30 $9,756,594 17,700
2025-06-30 $9,866,838 17,900
2025-06-30 $477,339,982 865,970
2025-03-31 $12,725,097 21,500
2025-03-31 $326,673,375 551,939
2025-03-31 $9,292,280 15,700
2024-12-31 $9,655,500 15,700
2024-12-31 $19,618,500 31,900
2024-12-31 $316,174,575 514,105
2024-09-30 $333,339,085 614,926
2024-09-30 $19,840,128 36,600
2024-09-30 $15,449,280 28,500
2024-06-30 $14,879,384 34,600
2024-06-30 $280,854,823 653,090
2024-06-30 $12,342,148 28,700
2024-03-31 $11,693,484 29,700
2024-03-31 $44,205,305 112,276
2024-03-31 $13,150,248 33,400
2023-12-31 $32,184,378 84,600
2023-12-31 $26,097,498 68,600
2023-12-31 $71,657,414 188,359
2023-09-30 $19,566,874 39,800
2023-09-30 $17,010,398 34,600
2023-09-30 $214,411,149 436,123
2023-06-30 $140,531,960 360,588
2023-06-30 $17,342,985 44,500
2023-06-30 $13,484,658 34,600
2023-03-31 $18,740,774 50,300
2023-03-31 $10,258,244 27,533
2023-03-31 $14,232,556 38,200
2022-12-31 $12,880,220 34,000
2022-12-31 $10,569,357 27,900
2022-12-31 $46,632,836 123,097
2022-09-30 $11,042,697 31,278
2022-09-30 $5,154,530 14,600
2022-09-30 $10,238,450 29,000
2022-06-30 $6,554,624 17,300
2022-06-30 $32,482,518 85,733
2022-06-30 $10,570,752 27,900
2022-03-31 $9,049,397 28,700
2022-03-31 $1,923,391 6,100

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