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Argenx SE

ARGX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001697862

No open-market purchases or sales by Argenx SE insiders were filed in the last 90 days; 510 institutions reported holding it in 13F filings for Q2 2026, worth $26.1B in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Argenx SE as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
478
−26 vs. Q4 2025
Shares held
28.8M
−929.3K (−3.1%) vs. Q4 2025
Total value
$21.1B
−$3.92B (−15.7%) vs. Q4 2025
New holders
63
178 more added
Sold out
89
172 more reduced

6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ARGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 478 institutions
Q1 2021: 191 institutionsQ2 2021: 177 institutionsQ3 2021: 182 institutionsQ4 2021: 208 institutionsQ1 2022: 199 institutionsQ2 2022: 232 institutionsQ3 2022: 255 institutionsQ4 2022: 271 institutionsQ1 2023: 272 institutionsQ2 2023: 290 institutionsQ3 2023: 341 institutionsQ4 2023: 346 institutionsQ1 2024: 328 institutionsQ2 2024: 336 institutionsQ3 2024: 358 institutionsQ4 2024: 397 institutionsQ1 2025: 448 institutionsQ2 2025: 439 institutionsQ3 2025: 470 institutionsQ4 2025: 510 institutionsQ1 2026: 478 institutionsQ2 2026: 510 institutions
Value heldQ1 2026: $21.1B
Q1 2021: $7.84BQ2 2021: $8.57BQ3 2021: $8.57BQ4 2021: $10.1BQ1 2022: $10.2BQ2 2022: $12.4BQ3 2022: $11.2BQ4 2022: $11.6BQ1 2023: $11.6BQ2 2023: $12.0BQ3 2023: $15.9BQ4 2023: $12.5BQ1 2024: $13.4BQ2 2024: $14.7BQ3 2024: $19.0BQ4 2024: $21.0BQ1 2025: $19.7BQ2 2025: $17.7BQ3 2025: $22.5BQ4 2025: $25.0BQ1 2026: $21.1BQ2 2026: $26.1B
Institutions holding ARGX and their total value by quarter
QuarterHoldersValue
Q2 2026510$26.1B
Q1 2026478$21.1B
Q4 2025510$25.0B
Q3 2025470$22.5B
Q2 2025439$17.7B
Q1 2025448$19.7B
Q4 2024397$21.0B
Q3 2024358$19.0B
Q2 2024336$14.7B
Q1 2024328$13.4B
Q4 2023346$12.5B
Q3 2023341$15.9B
Q2 2023290$12.0B
Q1 2023272$11.6B
Q4 2022271$11.6B
Q3 2022255$11.2B
Q2 2022232$12.4B
Q1 2022199$10.2B
Q4 2021208$10.1B
Q3 2021182$8.57B
Q2 2021177$8.57B
Q1 2021191$7.84B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Argenx SE; share changes are against Q4 2025.

Institutions holding ARGX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Henshaw Capital LLC1,862$1.36M0.05%00.0%Unchanged
Banco Santander, S.A.1,847$1.35M0.01%+1,847New
Sanders Morris Harris LLC1,830$1.34M0.21%+1,830New
Signaturefd, LLC1,813$1.32M0.02%−40−2.2%Reduced
AlphaCentric Advisors LLC1,794$1.31M1.31%+369+25.9%Added
Simplex Trading, LLC1,771$1.29M0.04%+1,021+136.1%Added
IMC-Chicago, LLC1,747$1.28M0.02%+1,747New
SBI Okasan Asset Management Co.Ltd.1,800$1.27M0.05%00.0%Unchanged
Westview Management dba Westview Investment Advisors1,736$1.27M0.66%+1,736New
Boothbay Fund Management, LLC1,707$1.25M0.03%+1,707New
Skopos Labs, Inc.1,697$1.24M0.04%−207−10.9%Reduced
Taproot Management LP1,674$1.22M0.23%+1,674New
LRT Capital Management, LLC1,653$1.21M1.13%+1,653New
Oak Ridge Investments LLC1,625$1.19M0.08%−28−1.7%Reduced
Daiwa Securities Group Inc.1,614$1.18M0.00%−67−4.0%Reduced
Loomis Sayles & Co L P1,574$1.15M0.00%+1,574New
Abc Arbitrage SA1,554$1.13M0.15%+1,554New
Barometer Capital Management Inc.1,550$1.13M0.39%+1,550New
NVWM, LLC1,535$1.12M0.25%+590+62.4%Added
QRG Capital Management, Inc.1,530$1.12M0.01%+607+65.8%Added
Wexford Capital LP1,500$1.10M0.18%+1,000+200.0%Added
Russell Investments Group, Ltd.1,493$1.09M0.00%+174+13.2%Added
Shepherd Street Advisors LLC1,491$1.09M1.07%+49+3.4%Added
Vestmark Advisory Solutions, Inc.1,484$1.08M0.01%−2,367−61.5%Reduced
Ieq Capital, LLC1,448$1.06M0.00%−436−23.1%Reduced
Neuberger Berman Group LLC1,445$1.05M0.00%+124+9.4%Added
Sumitomo Mitsui Trust Holdings, Inc.1,444$1.05M0.00%−97−6.3%Reduced
Hantz Financial Services, Inc.1,434$1.05M0.02%−444−23.6%Reduced
SIH Partners, LLLP1,418$1.04M0.03%+1,418New
Knollwood Investment Advisory, LLC1,379$1.01M0.10%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC1,378$1.01M0.00%−519−27.4%Reduced
Keybank National Association1,336$975.6K0.00%−564−29.7%Reduced
Vident Advisory, LLC1,322$965.4K0.01%+162+14.0%Added
Gilbert & Cook, Inc.1,294$944.9K0.12%−12−0.9%Reduced
ProShare Advisors LLC1,269$926.7K0.00%−17−1.3%Reduced
Principal Securities, Inc.1,259$919.4K0.01%−298−19.1%Reduced
DRW Securities, LLC1,247$910.6K0.05%00.0%Unchanged
FORA Capital, LLC1,240$906.4K0.07%−405−24.6%Reduced
Park Avenue Securities LLC1,237$903.0K0.01%−691−35.8%Reduced
Regions Financial Corp1,233$900.4K0.01%−222−15.3%Reduced
Legacy Wealth Asset Management, LLC1,229$897.5K0.22%+7+0.6%Added
Flow Traders U.S. LLC1,227$896.0K0.03%+1,227New
Bridgewater Associates, LP1,214$886.5K0.00%+1,214New
CAPROCK Group, Inc.1,178$860.3K0.02%−80−6.4%Reduced
Toroso Investments, LLC1,194$846.3K0.00%+1,194New
Level Four Advisory Services, LLC1,131$825.9K0.03%+12+1.1%Added
AdvisorShares Investments LLC1,130$825.2K0.15%+30+2.7%Added
Future Fund LLC1,120$817.9K0.29%+7+0.6%Added
Quantitative Investment Management, LLC1,093$798.0K0.08%−151−12.1%Reduced
New York Life Investment Management LLC1,070$781.4K0.01%+93+9.5%Added
Private Advisor Group, LLC1,066$778.5K0.00%+439+70.0%Added
Ritholtz Wealth Management1,025$748.5K0.01%+149+17.0%Added
Valeo Financial Advisors, LLC1,025$748.2K0.02%−347−25.3%Reduced
Yousif Capital Management, LLC1,003$732.4K0.01%00.0%Unchanged
Syon Capital LLC976$712.7K0.04%+6+0.6%Added
Janney Montgomery Scott LLC968$707.0K0.00%−235−19.5%Reduced
Advisors Asset Management, Inc.959$700.3K0.01%−37−3.7%Reduced
Morse Asset Management, Inc958$699.6K0.15%+298+45.2%Added
Central Pacific Bank - Trust Division953$695.9K0.09%00.0%Unchanged
Intrust Bank NA943$688.6K0.06%+70+8.0%Added
Rockefeller Capital Management L.P.936$683.7K0.00%+96+11.4%Added
Davenport & Co LLC935$682.8K0.00%−318−25.4%Reduced
Crews Bank & Trust935$682.8K0.10%00.0%Unchanged
Oppenheimer Asset Management Inc.891$650.7K0.01%−1,338−60.0%Reduced
Marex Group plc858$626.6K0.01%+257+42.8%Added
NewEdge Wealth, LLC824$601.4K0.01%−294−26.3%Reduced
Aaron Wealth Advisors818$597.3K0.03%+145+21.5%Added
Naviter Wealth, LLC800$584.3K0.07%+106+15.3%Added
Pacer Advisors, Inc.797$572.0K0.00%−8−1.0%Reduced
Integrated Wealth Concepts LLC771$563.1K0.00%+771New
Winton Group Ltd760$555.0K0.02%+760New
Summit Trail Advisors, LLC736$537.5K0.01%+736New
StoneCrest Wealth Management, Inc.730$533.1K0.23%00.0%Unchanged
Vise Technologies, Inc.620$521.6K0.01%00.0%Unchanged
Advisor Group Holdings, Inc.711$519.2K0.00%+66+10.2%Added
Tandem Capital Management Corp695$507.5K0.25%−60−7.9%Reduced
Evergreen Capital Management LLC690$503.9K0.01%−4,217−85.9%Reduced
Moody Aldrich Partners LLC680$496.6K0.09%−183−21.2%Reduced
Kornitzer Capital Management Inc675$492.9K0.01%−375−35.7%Reduced
RSM US Wealth Management LLC674$492.4K0.01%−50−6.9%Reduced
Dynasty Wealth Management, LLC669$488.5K0.00%−9−1.3%Reduced
GF Fund Management Co. Ltd.653$476.9K0.01%+82+14.4%Added
Commonwealth Equity Services, LLC650$474.7K0.00%+42+6.9%Added
PCM Encore, LLC649$473.9K0.10%+14+2.2%Added
Harbor Investment Advisory, LLC649$473.9K0.04%+518+395.4%Added
PSP Research LLC641$468.1K0.33%+11+1.7%Added
IFP Advisors, Inc629$459.3K0.01%−2−0.3%Reduced
Greenleaf Trust626$457.1K0.00%+7+1.1%Added
Legacy Capital Group California, Inc.606$442.5K0.17%−142−19.0%Reduced
Frank, Rimerman Advisors LLC602$439.6K0.03%+303+101.3%Added
Atomi Financial Group, Inc.593$433.0K0.01%−709−54.5%Reduced
We Are One Seven, LLC590$430.8K0.01%−207−26.0%Reduced
Ballentine Partners, LLC590$430.8K0.01%+73+14.1%Added
Mercer Global Advisors Inc573$418.3K0.00%+11+2.0%Added
Cambridge Investment Research Advisors, Inc.568$415.0K0.00%+19+3.5%Added
Profund Advisors LLC568$414.8K0.02%−89−13.5%Reduced
Resources Investment Advisors, LLC.559$408.2K0.00%−355−38.8%Reduced
Parallel Advisors, LLC553$404.2K0.01%+23+4.3%Added
Engineers Gate Manager LP540$394.3K0.00%−6,115−91.9%Reduced
R Squared Ltd539$393.6K0.22%+69+14.7%Added