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Disclosery

ARGX ARGENX SE

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ADR (ADR), issuer CIK 1697862

498 managers (509 13F filers) reported a position in ARGX shares at 2025-12-31, 29,748,387 shares in all. 73 filers opened a position and 52 filers sold out during the quarter.

Managers
498
13F filers
509
New
73
Added
175
Reduced
166
Sold out
52
Shares held by filers
29,748,387

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
FMR LLCin group FMR LLC5,592,319$4.7B0.24%-100,02713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/3,362,324$2.83B0.3%-278,08513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson2,458,164$2.06B0.92%-117,08713F-HRTimelineGroup
Capital World Investors1,916,234$1.61B0.22%-43,27013F-HRTimeline
Artisan Partners Limited Partnership1,756,942$1.48B2.26%-429,56813F-HRTimeline
Avoro Capital Advisors LLC990,000$833M8.18%013F-HR/ATimeline
Franklin Resourcesgroup of 2 filers holding751,465$632M-263,671Timeline
BlackRock, Inc.in group BlackRock, Inc.735,598$619M0.01%+211,79713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…679,236$571M0.1%-50,75013F-HRTimelineGroup
RTW INVESTMENTS, LP673,497$566M5.67%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY518,852$436M0.03%+83,74613F-HR/ATimelineGroup
Bellevue Group AGin group Bellevue Group AG461,854$388M7.36%-84,47413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.416,408$350M0.03%+331,48913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.414,182$348M0.11%+329,42913F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/400,776$337M0.02%+58,39713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding394,056$331M-39,804Timeline
SANDS CAPITAL MANAGEMENT, LLC356,870$300M0.91%+340,24513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC350,851$295M0.2%-362,70813F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO330,506$278M0.27%+18,23813F-HRTimelineGroup
JENNISON ASSOCIATES LLC229,761$193M0.12%-10,46713F-HRTimeline
Fiera Capital Corpin group Fiera Capital Corp225,971$190M0.6%+48,31713F-HRTimelineGroup
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC223,666$188M0.52%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC221,048$186M0.09%-8,72213F-HRTimelineGroup
LORD, ABBETT & CO. LLC203,864$171M0.53%+6,98713F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC187,139$157M0.04%+21,48113F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …172,732$145M0.24%-38,59813F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC169,098$142M0.14%+147,48813F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC167,206$141M0.02%-25,90713F-HR/ATimelineGroup
BAMCO INC /NY/in group Baron Capital153,719$129M0.35%-13,97513F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…153,211$129M0.13%-16,12213F-HRTimelineGroup
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC146,000$123M2.51%-26,30013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc144,355$121M0.03%-4,26413F-HRTimelineGroup
Checkpoint Capital L.P.142,000$119M37.83%-8,00013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\134,710$113M0.04%+45,98613F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC133,030$112M0.19%-4,16613F-HRTimelineGroup
AGF MANAGEMENT LTDin group AGF MANAGEMENT LTD124,691$105M0.45%new13F-HRTimelineGroup
EVENTIDE ASSET MANAGEMENT, LLC121,221$102M1.59%-4,15013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC117,887$99.1M0.16%+55,08313F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …115,358$97M0.11%+34,72613F-HRTimelineGroup
1832 Asset Management L.P.110,700$93.1M0.12%013F-HRTimeline
TimesSquare Capital Management, LLC108,509$91.3M1.37%-19,02113F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.106,770$89.8M0.15%-17,45413F-HRTimelineGroup
Rock Springs Capital Management LP103,250$86.8M4.45%-39,50013F-HRTimeline
TD Asset Management Inc101,523$85.4M0.07%-19,37913F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 3 filers holding94,976$79.9M+81,376Timeline
Ensign Peak Advisors, Inc90,452$76.1M0.13%-5,90913F-HR/ATimeline
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT…in group SUMMIT PARTNERS PUBLIC ASSET …82,620$69.5M1.95%-9,83413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding81,889$68.9M+28,096Timeline
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding80,825$68M-15,668Timeline
PINEBRIDGE INVESTMENTS LLC72,040$60.6M0.45%13F-HR/ATimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS70,744$59.5M0.04%-35,97013F-HRTimelineGroup
Nuveen, LLCin group TIAA66,241$55.7M0.01%-15,15913F-HRTimelineGroup
Artia Global Partners LP64,699$54.4M8.74%-13,61213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP64,244$54M0.01%-5,50713F-HRTimelineGroup
Eagle Health Investments LP62,730$52.8M11.59%-14,70013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC62,537$52.6M0.08%+62,47313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC60,458$50.8M0.04%-287,06013F-HRTimelineGroup
Jain Global LLC58,250$49M0.48%+55,98613F-HRTimeline
ARMISTICE CAPITAL, LLC58,000$48.8M1.19%013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC57,489$48.3M0.02%-11,30513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …57,408$48.1M0.04%-7,87813F-HRTimelineGroup
PGGM Investments54,830$46.1M0.73%-21,86913F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN54,390$45.7M0.01%-1,28413F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP53,902$45.3M0.03%-11,08313F-HRTimelineGroup
Handelsbanken Fonder AB52,678$44.3M0.13%+11,57313F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc52,347$44M0.07%-14,32913F-HRTimelineGroup
Candriam S.C.A.48,741$41M0.2%+54113F-HR/ATimeline
Life Cycle Investment Partners Ltd45,826$38.5M0.27%13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.45,533$38.3M0.03%-123,49513F-HRTimelineGroup
Woodline Partners LP45,426$38.2M0.15%-124,05013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND44,027$37M0.05%-21,09513F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding43,038$36.2MnewTimeline
Amundiin group Amundi42,485$35.7M0.01%+34,30413F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management41,923$35.3M0.07%new13F-HRTimelineGroup
Tri Locum Partners LP37,653$31.7M4.11%-5,75813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP36,817$31M0.01%-3,40313F-HRTimelineGroup
Public Sector Pension Investment Board36,600$30.8M0.1%new13F-HRTimeline
Davern Capital Partners, LP35,685$30M9.7%13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA35,660$30M0.01%-11,40413F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP34,535$29M0.02%-1,53613F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC33,847$28.5M0.02%new13F-HRTimeline
Soleus Capital Management, L.P.31,726$26.7M1.13%-37,70013F-HRTimeline
BRAIDWELL LP31,007$26.1M0.83%-45,08413F-HRTimeline
Perpetual Ltdin group Perpetual Ltd30,950$26M0.38%-18,42913F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.30,000$25.2M0.21%-125,00013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC28,485$24M0.03%-21,41913F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC28,202$23.7M0.05%+9,21713F-HRTimelineGroup
BLAIR WILLIAM & CO/IL26,340$22.2M0.06%+23,95713F-HRTimeline
Patient Square Capital LP26,000$21.9M4.68%+10,50013F-HRTimeline
LPL Financial LLC25,656$21.6M0.01%-11413F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd25,399$21.4M0.22%-25,20413F-HRTimelineGroup
BAKER BROS. ADVISORS LPin group BAKER BROS. ADVISORS LP25,174$21.2M0.12%-12,58613F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP25,000$21M0.43%+10,00013F-HRTimeline
Assenagon Asset Management S.A.24,347$20.5M0.03%new13F-HRTimeline
ARDSLEY ADVISORY PARTNERS LP24,000$20.2M2.57%+9,00013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC23,695$19.9M<0.01%-2,41913F-HRTimelineGroup
ODDO BHF ASSET MANAGEMENT SAS23,473$19.7M0.74%-5,41613F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
First Turn Management, LLC23,256$19.6M2.23%-15,51113F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers22,500$18.9M0.03%-2,00313F-HRTimelineGroup
Qube Research & Technologies Ltd22,451$18.9M0.03%-12,73213F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…21,822$18.4M0.11%+11,32213F-HRTimelineGroup
HRT FINANCIAL LP19,684$16.6M0.05%+10,74913F-HRTimeline
Driehaus Capital Management LLC16,897$14.2M0.1%-2,13713F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp16,549$13.9M<0.01%+9,16913F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/16,377$13.8M0.01%+6,07113F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…15,273$12.8M0.31%+1,42013F-HRTimelineGroup
Erste Asset Management GmbHin group Erste Asset Management GmbH14,302$12M0.1%+3413F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC14,112$11.9M0.04%-44,37913F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO13,999$11.8M<0.01%+5,57713F-HRTimelineGroup
DCF Advisers, LLC13,650$11.5M3.79%013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP13,508$11.4M0.01%+98313F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co12,575$10.6M0.02%-77613F-HRTimelineGroup
USS Investment Management Ltd11,997$10.1M0.05%+54713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MML INVESTORS SERVICES, LLC11,936$10M0.02%-3,44313F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP11,552$9.68M0.01%-4,90813F-HRTimeline
Campbell & CO Investment Adviser LLC11,177$9.4M0.45%+8,17813F-HRTimeline
CITIGROUP INCin group CITIGROUP INC10,960$9.22M0.01%+5,42713F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.in group Mirae Asset Global Investment…10,846$9.12M0.03%+2,01813F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,821$9.1M0.02%-213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC10,525$8.85M<0.01%+10,25713F-HRTimelineGroup
Quantinno Capital Management LP10,037$8.44M0.02%+1,82013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC9,840$8.28M0.02%+2213F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP9,567$8.05M0.01%-49913F-HRTimelineGroup
OLD MISSION CAPITAL LLC9,255$7.78M0.3%new13F-HRTimeline
Cetera Investment Advisers9,199$7.74M0.01%+1,63813F-HRTimeline
Creative Planningin group Creative Planning8,709$7.32M0.01%+99213F-HRTimelineGroup
Independent Advisor Alliance8,651$7.28M0.18%+4713F-HRTimeline
Nicholas Investment Partners, LP8,254$6.94M0.51%013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co8,243$6.93M<0.01%+99213F-HRTimelineGroup
Crossmark Global Holdings, Inc.8,168$6.87M0.1%-85913F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC7,798$6.56M0.08%+39813F-HRTimelineGroup
Orion Porfolio Solutions, LLC7,273$6.12M0.04%-2,35113F-HRTimeline
Beck Bode, LLC6,672$5.61M0.93%-50213F-HRTimeline
NAVELLIER & ASSOCIATES INC6,668$5.61M0.63%+4813F-HRTimeline
Engineers Gate Manager LP6,655$5.6M0.07%+3,19313F-HRTimeline
Cinctive Capital Management LP6,606$5.56M0.32%-5,69413F-HRTimeline
Maryland State Retirement & Pension Sys…6,430$5.41M0.11%+2913F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\6,385$5.37M0.01%-68813F-HRTimelineGroup
EFG International AGin group EFG International AG6,196$5.21M0.1%13F-HRTimelineGroup
MACKENZIE FINANCIAL CORP6,230$5.21M0.01%+2,09513F-HRTimeline
Federation des caisses Desjardins du Qu…6,184$5.2M0.02%-32913F-HRTimeline
HighTower Advisors, LLC6,076$5.11M0.01%+12813F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC6,041$5.08M0.2%new13F-HRTimelineGroup
iA Global Asset Management Inc.6,000$5.05M0.06%-1013F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…5,550$4.66M<0.01%new13F-HRTimelineGroup
EAGLE GLOBAL ADVISORS LLC5,502$4.63M0.17%-19813F-HRTimeline
QVT Financial LP5,218$4.39M0.42%-3,46213F-HRTimeline
M&T Bank Corpin group M&T Bank Corp4,980$4.19M0.01%+1,28613F-HR/ATimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC4,907$4.13M0.09%+4,01913F-HRTimeline
ACUTA CAPITAL PARTNERS, LLC4,851$4.08M2.77%-1,52813F-HRTimeline
China Universal Asset Management Co., L…4,744$3.99M0.31%-62213F-HRTimeline
STATE STREET CORPin group STATE STREET CORP4,734$3.98M<0.01%-11513F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC4,670$3.93M0.02%+1,51213F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC4,640$3.9M0.02%-53013F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP4,521$3.8M0.01%-34413F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd4,297$3.61M0.09%new13F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding4,205$3.54M-16Timeline
PFM Health Sciences, LP4,202$3.53M0.36%-2,20113F-HRTimeline
Y-Intercept (Hong Kong) Ltd4,170$3.51M0.08%+3,42013F-HRTimeline
DekaBank Deutsche Girozentrale8,445$3.47M0.01%013F-HRTimeline
Ethic Inc.4,085$3.44M0.05%+2,96613F-HRTimeline
Varma Mutual Pension Insurance Co4,000$3.36M0.02%013F-HRTimeline
Vestmark Advisory Solutions, Inc.3,851$3.24M0.04%+3,48713F-HRTimeline
LMR Partners LLPin group LMR Partners LLP3,806$3.2M0.03%-4,99413F-HRTimelineGroup
GILDER GAGNON HOWE & CO LLC3,771$3.17M0.03%-813F-HRTimeline
Mariner, LLCin group Mariner, LLC3,754$3.16M<0.01%+37113F-HRTimelineGroup
AWM Investment Company, Inc.3,750$3.15M0.3%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC3,668$3.08M<0.01%-99413F-HRTimelineGroup
Nilsine Partners, LLC3,653$3.07M0.27%new13F-HRTimeline
Ilmarinen Mutual Pension Insurance Co3,600$3.03M0.02%new13F-HRTimeline
HighVista Strategies LLC3,588$3.02M0.78%-48013F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC3,545$2.98M0.06%+5213F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth3,481$2.93M<0.01%+3,00513F-HRTimelineGroup
Vanguard Personalized Indexing Manageme…in group VANGUARD GROUP INC3,472$2.92M0.03%+12813F-HRTimelineGroup
NLB Skladi, upravljanje premozenja, d.o…3,300$2.78M0.13%13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…3,226$2.71M<0.01%+1,28013F-HRTimelineGroup
SG Americas Securities, LLC3,179$2.67M<0.01%+1,54813F-HRTimeline
Main Management ETF Advisors, LLCin group Main Management ETF Advisors,…3,132$2.63M0.09%+3213F-HRTimelineGroup
Simplify Asset Management Inc.3,115$2.62M0.04%+1,45613F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE3,001$2.52M<0.01%-67013F-HRTimelineGroup
Sanctuary Advisors, LLC2,958$2.49M0.01%-28913F-HRTimeline
SECTORAL ASSET MANAGEMENT INC2,894$2.43M1.95%-99613F-HRTimeline
QUADRANT CAPITAL GROUP LLC2,806$2.36M0.07%+213F-HRTimeline
Nan Fung Group Holdings Ltd2,800$2.35M2.11%013F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC2,796$2.35M0.02%+8813F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC2,705$2.27M0.01%+28813F-HRTimelineGroup
SWS Partners2,696$2.27M0.55%-62313F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding2,671$2.25M-1,180Timeline
CIM, LLC2,636$2.22M0.29%new13F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC2,523$2.12M0.01%-1,45713F-HRTimeline
Atria Investments, Inc2,454$2.06M0.02%-30413F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC2,401$2.02M<0.01%+46913F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding2,389$2.01M+2,172Timeline
Verition Fund Management LLC2,345$1.97M0.01%+1,97113F-HRTimeline
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…2,273$1.91M0.04%new13F-HRTimelineGroup
PARTNERS CAPITAL INVESTMENT GROUP, LLP2,159$1.82M0.07%-1,34513F-HRTimeline
TUDOR INVESTMENT CORP ET AL2,148$1.81M0.01%new13F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP2,145$1.8M<0.01%+17913F-HR/ATimelineGroup
WESPAC Advisors SoCal, LLC2,119$1.78M0.36%+44313F-HRTimeline
DV EQUITIES, LLC2,079$1.75M0.32%13F-HRTimeline