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argenx SE 13F holders

511 funds reported a position in argenx SE in their 13F for the quarter ended 30 June 2026, together 28.3 million shares worth $26.13 billion. Against the quarter before, 67 opened a position, 176 added, 164 trimmed and 47 sold out; together they sold a net 514,572 shares. The largest holders: FMR LLC, Price T Rowe Associates Inc. and Jupiter Topco LLC.

Funds holding511+30 on Q1 2026
Shares they held28.3Mworth $26.13 billion
Net sold on the quarter514,572 sharesabout $475.9 million at the funds' values
Funds buying to selling243 to 211opened or added, to cut or sold
Opened 67Added 176Held 100Trimmed 164Sold out 47
Opened: 67 fundsAdded: 176 fundsHeld: 100 fundsTrimmed: 164 fundsSold out: 47 funds

What each fund did in ARGX against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 358 funds, 35.1 million shares358Q3 2024Q4 2024: 399 funds, 34.1 million shares399Q4 2024Q1 2025: 449 funds, 33.4 million shares449Q1 2025Q2 2025: 440 funds, 32.2 million shares440Q2 2025Q3 2025: 471 funds, 30.5 million shares471Q3 2025Q4 2025: 511 funds, 30.0 million shares511Q4 2025Q1 2026: 481 funds, 28.8 million shares481Q1 2026Q2 2026: 511 funds, 28.3 million shares511Q2 2026

Funds reporting a position in ARGX in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

5,013 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 268 reported a position in argenx SE: 42 opened one, 98 added, 61 trimmed and 16 sold out, a net 37,557 shares sold.

FundChange in sharesShares nowStatusFiling
Barclays PLC-119,54614,881trimmed13F
Dimensional Fund Advisors LP+40,08384,491added13F
Allspring Global Investments Holdings, LLC-31,069139,760trimmed13F
Jefferies Financial Group Inc.+24,93270,000added13F
Pictet Asset Management Holding SA-24,888173,394trimmed13F
Squarepoint Ops LLC+18,33976,739added13F
William Blair Investment Management, LLC-17,216247,401trimmed13F
Russell Investments Group, Ltd.+16,82526,365added13F
Candriam S.C.A.-13,70166,419trimmed13F
Picton Mahoney Asset Management+13,70613,706new13F
CenterBook Partners LP+11,75112,226added13F
Bank of Montreal+10,04987,262added13F
Bank of New York Mellon Corp+8,43225,403added13F
Gunderson Capital Management LLC+6,0786,078new13F
iA Global Asset Management Inc.-5,222738trimmed13F
IMC-Chicago, LLC+4,7844,784new13F
Y-Intercept (Hong Kong) Ltd+3,9923,992new13F
Deutsche Bank AG-3,827133,508trimmed13F
LPL Financial LLC+3,39322,892added13F
Assenagon Asset Management S.A.+3,35536,417added13F
Virtus Wealth Solutions LLC+3,1233,123new13F
Bessemer Group Inc.-2,933264,846trimmed13F
Citigroup Inc.+2,84410,727added13F
Mirae Asset Global Investments Co., Ltd.-2,6768,488trimmed13F
DCF Advisers, LLC-2,50011,700trimmed13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 2 reported a position in argenx SE in a 13F for the quarter ended 30 September 2026, and 8 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 5.2 million shares worth $4.85 billion, 0.2% of its reported book (its 13F for the quarter ended 30 June 2026). In the quarter, 0 funds added or opened a position and 2 trimmed or sold out; together they sold a net 968 shares, about $928,234 at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC5,231,452$4.85 billion0.2%+240,418added30 June 2026, an earlier quarter13F
Citadel Advisors212,416$197.1 million0.1%-6,710trimmed30 June 2026, an earlier quarter13F
Two Sigma Investments185,638$172.2 million0.1%+76,517added30 June 2026, an earlier quarter13F
Millennium Management94,401$87.6 million0.1%+22,036added30 June 2026, an earlier quarter13F
Capital Research Global Investors88,511$82.1 million0.0%+88,511new30 June 2026, an earlier quarter13F
Point72 Asset Management39,983$37.1 million0.1%+39,983new30 June 2026, an earlier quarter13F
Geode Capital Management22,895$22.0 million0.0%-966trimmed30 September 202613F
Alyeska2,811$2.6 million0.0%+2,811new30 June 2026, an earlier quarter13F
Bridgewater Associates1,958$1.8 million0.0%+744added30 June 2026, an earlier quarter13F
Baillie Gifford14$13,4250.0%-2trimmed30 September 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
FMR LLC5,231,45218.52%$4.85 billion0.21%+240,41813F
Price T Rowe Associates Inc.2,678,0479.48%$2.48 billion0.25%-696,90813F
Jupiter Topco LLC2,474,0158.76%$2.30 billion0.94%first 13F13F
Capital World Investors2,199,7707.79%$2.04 billion0.24%-56,44613F
Artisan Partners Limited Partnership1,508,7785.34%$1.40 billion2.28%+40,79613F
Avoro Capital Advisors LLC1,000,0003.54%$927.8 million8.33%no change13F
Wellington Management Group LLP930,5483.29%$863.3 million0.15%-90,90913F
BlackRock, Inc.777,2372.75%$721.1 million0.01%-31,10013F
RTW Investments, LP709,4462.51%$658.2 million5.62%no change13F
Morgan Stanley643,1232.28%$596.7 million0.03%+82,41213F
Invesco Ltd.443,9901.57%$411.9 million0.03%-150,70713F
Bank of America Corp.400,2341.42%$371.3 million0.02%+11713F
AllianceBernstein L.P.395,6611.40%$288.9 million0.10%-26,64313F
Bellevue Group AG301,0001.07%$279.3 million5.88%-12,00013F
Sands Capital Management, LLC298,5991.06%$277.0 million1.03%-41,68613F
Bessemer Group Inc.267,7790.95%$248.4 million0.34%+203,52813F
William Blair Investment Management, LLC264,6170.94%$245.5 million0.74%-1,45013F
Sei Investments Co.255,0730.90%$236.7 million0.21%-31,89313F
Clearbridge Investments, LLC253,7760.90%$235.4 million0.20%+22,42013F
Jennison Associates LLC226,2000.80%$209.9 million0.13%-11,26813F
Franklin Resources Inc.224,9300.80%$208.7 million0.04%-8,56313F
Citadel Advisors LLC212,4160.75%$197.1 million0.12%-6,71013F
Pictet Asset Management Holding SA198,2820.70%$183.8 million0.18%+49,97613F
Two Sigma Investments, LP185,6380.66%$172.2 million0.13%+76,51713F
Ameriprise Financial Inc.181,4640.64%$168.4 million0.03%-34,44613F
Goldman Sachs Group Inc.177,8460.63%$165.0 million0.02%-54,13913F
Legal & General Group Plc177,1640.63%$164.4 million0.03%+26,31413F
American Century Companies Inc.173,1930.61%$160.7 million0.07%-50713F
Allspring Global Investments Holdings, LLC170,8290.60%$155.4 million0.24%-4,48213F
BNP Paribas Financial Markets157,9580.56%$146.5 million0.08%-19,87813F
1832 Asset Management L.P.157,9400.56%$146.5 million0.18%+73,74013F
Deutsche Bank AG137,3350.49%$127.4 million0.04%-2,04613F
Bamco Inc.136,6540.48%$126.8 million0.19%-1,99413F
Barclays PLC134,4270.48%$124.7 million0.04%+128,92713F
Lazard Asset Management LLC131,9960.47%$122.5 million0.19%-1,35113F
Checkpoint Capital L.P.131,2830.46%$121.8 million31.25%-21,71713F
Eventide Asset Management, LLC125,6680.44%$116.6 million1.56%+1113F
Agf Management Ltd125,4810.44%$116.4 million0.45%+41213F
BNP Paribas Asset Management Holding S.A.121,7860.43%$113.0 million0.11%-7,36113F
Lord, Abbett & Co. LLC108,2530.38%$100.4 million0.30%-43,83013F
First Trust Advisors LP101,4400.36%$94.1 million0.06%-5,75513F
PGGM Investments96,5110.34%$89.5 million2.20%+24,99713F
Millennium Management LLC94,4010.33%$87.6 million0.06%+22,03613F
Orbimed Advisors LLC92,8800.33%$86.2 million1.64%-44,02013F
Fiera Capital Corp90,4230.32%$83.9 million0.30%-126,77513F
Capital Research Global Investors88,5110.31%$82.1 million0.01%new13F
Federated Hermes, Inc.87,2880.31%$81.0 million0.12%-7,96513F
Pinebridge Investments LLC87,0500.31%$80.8 million0.67%-16,76213F
Public Sector Pension Investment Board84,3000.30%$78.2 million0.20%+11,00013F
Aberdeen Group plc83,8220.30%$77.8 million0.11%+1,71613F
The 50 largest of the 511 funds that reported a position in ARGX in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on ARGX

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls36,700$34.0 million30 June 202613F
Citadel AdvisorsPuts24,200$22.5 million30 June 202613F
Point72 Asset ManagementCalls3,600$3.3 million30 June 202613F
Point72 Asset ManagementPuts2,200$2.0 million30 June 202613F
Two Sigma InvestmentsPuts600$556,66230 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
5 November 202613G/AFMR LLC and 3 others6.2 million9.9%30 September 2026passive, institutional (13d-1(b))EDGAR
14 August 202613G/AT. Rowe Price Associates, Inc. and 1 other2.7 million4.3%30 June 2026passive, institutional (13d-1(b))EDGAR
6 May 202613G/AFMR LLC and 3 others5.4 million8.7%31 March 2026passive, institutional (13d-1(b))EDGAR
14 November 202513G/AT. Rowe Price Associates, Inc. and 1 other3.6 million6.0%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
9 October 2026555$818.63SEC
30 September 2026712$970.66SEC
10 September 202621$1,002.31SEC
9 September 20262,246$1,007.07SEC
2 September 202610,582$1,028.51SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 10,582 on 2 September 2026. A fail is an operational fact about settlement, not a position.