ARGENX SE (ARGX) — Institutional Holders, Q2 2026

511 institutional investment managers reported a ARGX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $26.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← ARGX stock profile

ARGX in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

181

Trimmed

162

Sold out

Biggest buyers

FMRAdded · +240,418 sh+$223.1M
BESSEMER GROUPAdded · +203,528 sh+$188.8M
BARCLAYS PLCAdded · +128,927 sh+$119.6M
Capital Research Global InvestorsNew · +88,511 sh+$82.1M
MORGAN STANLEYAdded · +82,412 sh+$76.5M

Biggest sellers

PRICE T ROWE ASSOCIATESTrimmed · -696,908 sh-$646.6M
Invesco Ltd.Trimmed · -150,707 sh-$139.8M
Fiera CapitalTrimmed · -126,775 sh-$117.6M
WELLINGTON MANAGEMENT GROUP LLPTrimmed · -90,909 sh-$84.3M
BRAIDWELLTrimmed · -67,232 sh-$62.4M

ARGX 13F holders ranked 1–100 of 511

Institutional investors reporting a position in ARGENX SE on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	FMR#1 · 5,231,452 sh	5,231,452	$4.9B	0.21%	+4.8%
2	PRICE T ROWE ASSOCIATES#2 · 2,678,047 sh	2,678,047	$2.5B	0.25%	-20.6%
3	Jupiter Topco#3 · 2,474,015 sh	2,474,015	$2.3B	0.94%	—
4	Capital World Investors#4 · 2,199,770 sh	2,199,770	$2.0B	0.24%	-2.5%
5	Artisan Partners Limited Partnership#5 · 1,508,778 sh	1,508,778	$1.4B	2.22%	+2.8%
6	Avoro Capital Advisors#6 · 1,000,000 sh	1,000,000	$927.8M	8.33%	0.0%
7	WELLINGTON MANAGEMENT GROUP LLP#7 · 930,548 sh	930,548	$863.3M	0.15%	-8.9%
8	BlackRock#8 · 777,237 sh	777,237	$721.1M	0.01%	-3.8%
9	RTW INVESTMENTS#9 · 709,446 sh	709,446	$658.2M	5.62%	0.0%
10	MORGAN STANLEY#10 · 643,123 sh	643,123	$596.7M	0.03%	+14.7%
11	Invesco Ltd.#11 · 443,990 sh	443,990	$411.9M	0.03%	-25.3%
12	BANK OF AMERICA#12 · 400,234 sh	400,234	$371.3M	0.02%	0.0%
13	ALLIANCEBERNSTEIN L.P.#13 · 395,661 sh	395,661	$288.9M	0.10%	-6.3%
14	Bellevue Group AG#14 · 301,000 sh	301,000	$279.3M	5.88%	-3.8%
15	SANDS CAPITAL MANAGEMENT#15 · 298,599 sh	298,599	$277.0M	1.03%	-12.3%
16	BESSEMER GROUP#16 · 267,779 sh	267,779	$248.4M	0.34%	+316.8%
17	WILLIAM BLAIR INVESTMENT MANAGEMENT#17 · 264,617 sh	264,617	$245.5M	0.74%	-0.5%
18	SEI INVESTMENTS#18 · 255,073 sh	255,073	$236.7M	0.21%	-11.1%
19	Clearbridge Investments#19 · 253,776 sh	253,776	$235.4M	0.19%	+9.7%
20	JENNISON ASSOCIATES#20 · 226,200 sh	226,200	$209.9M	0.13%	-4.7%
21	FRANKLIN RESOURCES#21 · 224,930 sh	224,930	$208.7M	0.05%	-3.7%
22	CITADEL ADVISORS#22 · 212,416 sh	212,416	$197.1M	0.02%	-3.1%
23	Pictet Asset Management Holding SA#23 · 198,282 sh	198,282	$183.8M	0.18%	+33.7%
24	TWO SIGMA INVESTMENTS#24 · 185,638 sh	185,638	$172.2M	0.12%	+70.1%
25	AMERIPRISE FINANCIAL#25 · 181,464 sh	181,464	$168.4M	0.03%	-16.0%
26	GOLDMAN SACHS GROUP#26 · 177,846 sh	177,846	$165.0M	0.01%	-23.3%
27	Legal & General Group Plc#27 · 177,164 sh	177,164	$164.4M	0.03%	+17.4%
28	AMERICAN CENTURY COMPANIES#28 · 173,193 sh	173,193	$160.7M	0.07%	-0.3%
29	Allspring Global Investments#29 · 170,829 sh	170,829	$155.4M	0.24%	-2.6%
30	BNP PARIBAS FINANCIAL MARKETS#30 · 157,958 sh	157,958	$146.5M	0.05%	-11.2%
31	1832 Asset Management L.P.#31 · 157,940 sh	157,940	$146.5M	0.07%	+87.6%
32	DEUTSCHE BANK AG\#32 · 137,335 sh	137,335	$127.4M	0.04%	-1.5%
33	BAMCO#33 · 136,654 sh	136,654	$126.8M	0.19%	-1.4%
34	BARCLAYS PLC#34 · 134,427 sh	134,427	$124.7M	0.02%	+2344.1%
35	LAZARD ASSET MANAGEMENT#35 · 131,996 sh	131,996	$122.5M	0.19%	-1.0%
36	Checkpoint Capital L.P.#36 · 131,283 sh	131,283	$121.8M	31.25%	-14.2%
37	EVENTIDE ASSET MANAGEMENT#37 · 125,668 sh	125,668	$116.6M	1.56%	0.0%
38	AGF MANAGEMENT LTD#38 · 125,481 sh	125,481	$116.4M	0.45%	+0.3%
39	BNP Paribas Asset Management Holding S.A.#39 · 121,786 sh	121,786	$113.0M	0.11%	-5.7%
40	LORD, ABBETT#40 · 108,253 sh	108,253	$100.4M	0.29%	-28.8%
41	FIRST ADVISORS#41 · 101,440 sh	101,440	$94.1M	0.06%	-5.4%
42	PGGM Investments#42 · 96,511 sh	96,511	$89.5M	2.20%	+35.0%
43	MILLENNIUM MANAGEMENT#43 · 94,401 sh	94,401	$87.6M	0.03%	+30.5%
44	ORBIMED ADVISORS#44 · 92,880 sh	92,880	$86.2M	1.60%	-32.2%
45	Fiera Capital#45 · 90,423 sh	90,423	$83.9M	0.30%	-58.4%
46	Capital Research Global Investors#46 · 88,511 sh	88,511	$82.1M	0.01%	New
47	FEDERATED HERMES#47 · 87,288 sh	87,288	$81.0M	0.12%	-8.4%
48	PINEBRIDGE INVESTMENTS#48 · 87,050 sh	87,050	$80.8M	0.67%	-16.1%
49	PUBLIC SECTOR PENSION INVESTMENT BOARD#49 · 84,300 sh	84,300	$78.2M	0.20%	+15.0%
50	abrdn plc#50 · 83,822 sh	83,822	$77.8M	0.11%	+2.1%
51	TimesSquare Capital Management#51 · 83,114 sh	83,114	$77.1M	1.13%	0.0%
52	Candriam S.C.A.#52 · 80,120 sh	80,120	$74.3M	0.33%	+48.0%
53	BANK OF MONTREAL#53 · 77,213 sh	77,213	$71.6M	0.02%	-9.5%
54	Eagle Health Investments#54 · 76,417 sh	76,417	$70.9M	11.75%	+0.1%
55	Nuveen#55 · 74,128 sh	74,128	$68.8M	0.02%	+11.9%
56	Amundi#56 · 65,122 sh	65,122	$60.4M	0.01%	+6.0%
57	NORTHERN#57 · 62,219 sh	62,219	$57.7M	<0.01%	+6.0%
58	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#58 · 61,312 sh	61,312	$56.9M	0.01%	+122.9%
59	CANADA PENSION PLAN INVESTMENT BOARD#59 · 60,577 sh	60,577	$56.2M	0.03%	New
60	Squarepoint Ops#60 · 58,400 sh	58,400	$54.2M	0.06%	+212.7%
61	NOMURA ASSET MANAGEMENT INTERNATIONAL#61 · 58,267 sh	58,267	$54.1M	0.08%	-0.2%
62	USS Investment Management Ltd#62 · 57,903 sh	57,903	$53.8M	0.19%	+376.8%
63	WESTFIELD CAPITAL MANAGEMENT#63 · 57,082 sh	57,082	$53.0M	0.17%	New
64	ENVESTNET ASSET MANAGEMENT#64 · 55,346 sh	55,346	$51.3M	0.01%	-9.9%
65	Woodline Partners#65 · 55,025 sh	55,025	$51.1M	0.16%	New
66	Rock Springs Capital Management#66 · 52,750 sh	52,750	$48.9M	2.39%	-46.4%
67	Handelsbanken Fonder AB#67 · 52,653 sh	52,653	$48.9M	0.14%	-4.1%
68	Ensign Peak Advisors#68 · 52,027 sh	52,027	$48.3M	0.08%	-27.3%
69	ADAGE CAPITAL PARTNERS GP, L.L.C.#69 · 50,607 sh	50,607	$47.0M	0.07%	-43.8%
70	NOMURA ASSET MANAGEMENT LTD#70 · 49,179 sh	49,179	$45.6M	0.10%	-0.3%
71	LEUCADIA NATIONAL#71 · 45,068 sh	45,068	$41.8M	0.28%	+50.2%
72	DIMENSIONAL FUND ADVISORS#72 · 44,408 sh	44,408	$41.2M	<0.01%	+14.5%
73	Tri Locum Partners#73 · 41,596 sh	41,596	$38.6M	4.75%	+31.5%
74	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#74 · 40,062 sh	40,062	$37.2M	0.02%	New
75	Point72 Asset Management, L.P.#75 · 39,983 sh	39,983	$37.1M	0.04%	New
76	UBS Group AG#76 · 36,583 sh	36,583	$33.9M	<0.01%	+15.6%
77	RAYMOND JAMES FINANCIAL#77 · 34,757 sh	34,757	$32.2M	<0.01%	-5.6%
78	WELLS FARGO & COMPANY#78 · 34,453 sh	34,453	$32.0M	<0.01%	-9.6%
79	VICTORY CAPITAL MANAGEMENT#79 · 30,865 sh	30,865	$28.6M	0.02%	-4.3%
80	Artia Global Partners#80 · 29,739 sh	29,739	$27.6M	5.09%	0.0%
81	PEREGRINE CAPITAL MANAGEMENT#81 · 29,732 sh	29,732	$27.6M	0.90%	New
82	Mediolanum International Funds Ltd#82 · 29,785 sh	29,785	$27.2M	0.23%	New
83	ROYAL BANK OF CANADA#83 · 28,562 sh	28,562	$26.5M	<0.01%	-13.2%
84	Perpetual Ltd#84 · 28,246 sh	28,246	$26.2M	—	-0.4%
85	BLAIR WILLIAM#85 · 27,666 sh	27,666	$25.7M	0.07%	+23.5%
86	ODDO BHF ASSET MANAGEMENT SAS#86 · 25,009 sh	25,009	$23.2M	1.07%	0.0%
87	TD ASSET MANAGEMENT#87 · 24,675 sh	24,675	$22.9M	0.02%	-69.5%
88	GEODE CAPITAL MANAGEMENT#88 · 23,861 sh	23,861	$22.1M	<0.01%	+1.2%
89	Patient Square Capital#89 · 23,000 sh	23,000	$21.3M	3.31%	-37.4%
90	Life Cycle Investment Partners Ltd#90 · 22,490 sh	22,490	$20.9M	0.10%	-61.8%
91	VAN ECK ASSOCIATES#91 · 22,193 sh	22,193	$20.6M	0.01%	-45.1%
92	NEW YORK STATE COMMON RETIREMENT FUND#92 · 22,082 sh	22,082	$20.5M	0.03%	-44.0%
93	Soleus Capital Management, L.P.#93 · 19,955 sh	19,955	$18.5M	0.64%	+470.1%
94	LPL Financial#94 · 19,499 sh	19,499	$18.1M	<0.01%	-16.1%
95	NATIXIS ADVISORS#95 · 19,088 sh	19,088	$17.7M	0.02%	-6.3%
96	Jain Global#96 · 18,913 sh	18,913	$17.5M	0.07%	+307.5%
97	VOLORIDGE INVESTMENT MANAGEMENT#97 · 18,797 sh	18,797	$17.4M	0.07%	-17.0%
98	BRAIDWELL#98 · 17,707 sh	17,707	$16.4M	0.61%	-79.2%
99	HRT FINANCIAL#99 · 36,098 sh	36,098	$16.3M	0.04%	+92.5%
100	Bank of New York Mellon#100 · 16,971 sh	16,971	$15.7M	<0.01%	-1.2%

Funds that sold out of ARGX in Q2 2026 (48)

Held ARGX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held ARGX in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
JANE STREET GROUP38,438 sh	38,438	$28.1M
Davern Capital Partners35,045 sh	35,045	$25.6M
Jones Hill Capital25,995 sh	25,995	$19.0M
BAKER BROS. ADVISORS25,174 sh	25,174	$18.4M
BALYASNY ASSET MANAGEMENT L.P.13,111 sh	13,111	$9.6M
Cinctive Capital Management7,687 sh	7,687	$5.6M
Trexquant Investment7,009 sh	7,009	$5.1M
Y-Intercept (Hong Kong) Ltd5,884 sh	5,884	$4.3M
Dorsey Wright & Associates2,189 sh	2,189	$1.6M
Kovitz Investment Group Partners2,034 sh	2,034	$1.5M
Banco Santander, S.A.1,847 sh	1,847	$1.3M
SANDERS MORRIS HARRIS1,830 sh	1,830	$1.3M
IMC-Chicago1,747 sh	1,747	$1.3M
LOOMIS SAYLES & L P1,574 sh	1,574	$1.1M
FORA Capital1,240 sh	1,240	$906.4K
Legacy Wealth Asset Management1,229 sh	1,229	$897.5K
AdvisorShares Investments1,130 sh	1,130	$825.2K
Quantitative Investment Management1,093 sh	1,093	$798.0K
YOUSIF CAPITAL MANAGEMENT1,003 sh	1,003	$732.4K
Worth Financial Advisory Group40 sh	40	$459.4K
Legacy Capital Group California606 sh	606	$442.5K
Engineers Gate Manager540 sh	540	$394.3K
R Squared Ltd539 sh	539	$393.6K
AIGEN INVESTMENT MANAGEMENT479 sh	479	$349.8K
Burns Matteson Capital Management431 sh	431	$314.7K
Net Worth Advisory Group393 sh	393	$286.8K
Everhart Financial Group384 sh	384	$280.4K
Wealth Management Associates384 sh	384	$280.4K
Scientech Research348 sh	348	$254.1K
Beacon Pointe Advisors334 sh	334	$243.9K
PERSONAL CFO SOLUTIONS293 sh	293	$214.0K
Ashton Thomas Private Wealth284 sh	284	$207.4K
Persistent Asset Partners Ltd253 sh	253	$184.8K
Walleye Trading243 sh	243	$177.5K
Raiffeisen Bank International AG100 sh	100	$70.4K
Advisory Services Network77 sh	77	$56.4K
Sound Income Strategies27 sh	27	$20.1K
CHILTON CAPITAL MANAGEMENT25 sh	25	$18.3K
TWIN PEAKS WEALTH ADVISORS21 sh	21	$15.3K
Root Financial Partners7 sh	7	$5.1K
RMG Wealth Management5 sh	5	$4.1K
PRIVATE NA5 sh	5	$3.7K
Innovative Asset Advisors Group4 sh	4	$2.9K
Rosenberg Matthew Hamilton3 sh	3	$2.2K
Western Wealth Management3 sh	3	$1.8K
Legacy Wealth Managment2 sh	2	$1.5K
Intentional Wealth Strategies2 sh	2	$1.5K
Dogwood Wealth Management1 sh	1	$730.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.