Latest Period
Q2 2026
Security Snapshot
ARGENX SE - ADR (ARGX) Institutional Ownership
CUSIP: 04016X101
13F Institutional Holders and Ownership History from Q2 2017 to Q2 2026
Institutions Reporting
506
Shares (Excl. Options)
28,237,659
Price
$927.77
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- Security type / class
- Equity / ADR
- Symbol
- ARGX on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 28,237,659
- Total 13F value
- $26,111,994,256
- Portfolio coverage rank
- 0.01%
- Share change
- -490,950
- Value change
- -$414,474,254
- Number of holders
- 506
- Shares outstanding
- 62,219,930
- SEC-reported price per share
- $909.49
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ARGX - ARGENX SE - ADR is tracked under CUSIP 04016X101.
- 506 institutions reported positions in Q2 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 476 to 506 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $21,081,314,665 to $26,111,994,256.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 506 institutions filings for Q2 2026.
Security key
04016X101
Latest holder period
Q2 2026
13F holders
506
13D/G owners
2
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 04016X101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
ARGX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 4.3% | -28% | $2,433,301,387 | -$883,608,643 | 2,675,457 | -27% | T. Rowe Price Associates, Inc. | 30 Jun 2026 |
| Artisan Partners Limited Partnership | 3.8% | $1,316,438,506 | 2,349,776 | Artisan Partners Asset Management Inc. | 30 Jun 2025 |
As of 30 Jun 2026, 506 institutional investors reported holding 28,237,659 shares of ARGENX SE - ADR (ARGX). This represents 45% of the company’s total 62,219,930 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
36%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 8.4% | 5,231,452 | +4.8% | 0.21% | $4,853,584,395 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 4.3% | 2,678,047 | -21% | 0.25% | $2,484,612,000 |
| Jupiter Topco LLC | 4% | 2,474,015 | 0% | 0.94% | $2,295,632,010 |
| Capital World Investors | 3.5% | 2,199,770 | -2.5% | 0.24% | $2,040,767,346 |
| Artisan Partners Limited Partnership | 2.4% | 1,508,778 | +2.8% | 2.3% | $1,399,799,026 |
| Avoro Capital Advisors LLC | 1.6% | 1,000,000 | 0% | 8.3% | $927,770,000 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.5% | 930,548 | -8.9% | 0.15% | $863,334,518 |
| BlackRock, Inc. | 1.2% | 777,237 | -3.8% | 0.01% | $721,097,624 |
| RTW INVESTMENTS, LP | 1.1% | 709,446 | 0% | 5.6% | $658,202,715 |
| MORGAN STANLEY | 1% | 643,123 | +15% | 0.03% | $596,672,325 |
| Invesco Ltd. | 0.71% | 443,990 | -25% | 0.03% | $411,920,603 |
| BANK OF AMERICA CORP /DE/ | 0.64% | 400,234 | +0.03% | 0.02% | $371,325,384 |
| ALLIANCEBERNSTEIN L.P. | 0.64% | 395,661 | -6.3% | 0.11% | $288,931,445 |
| Bellevue Group AG | 0.48% | 301,000 | -3.8% | 5.9% | $279,258,770 |
| SANDS CAPITAL MANAGEMENT, LLC | 0.48% | 298,599 | -12% | 1% | $277,031,194 |
| BESSEMER GROUP INC | 0.43% | 267,779 | +317% | 0.34% | $248,438,000 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 0.43% | 264,617 | -0.54% | 0.74% | $245,489,701 |
| SEI INVESTMENTS CO | 0.41% | 255,073 | -11% | 0.21% | $236,651,864 |
| Clearbridge Investments, LLC | 0.41% | 253,776 | +9.7% | 0.19% | $235,446,001 |
| JENNISON ASSOCIATES LLC | 0.36% | 226,200 | -4.7% | 0.13% | $209,861,770 |
| FRANKLIN RESOURCES INC | 0.36% | 224,930 | -3.7% | 0.05% | $208,683,492 |
| CITADEL ADVISORS LLC | 0.34% | 212,416 | -3.1% | 0.11% | $197,073,193 |
| Pictet Asset Management Holding SA | 0.32% | 198,282 | +34% | 0.18% | $183,807,971 |
| TWO SIGMA INVESTMENTS, LP | 0.3% | 185,638 | +70% | 0.13% | $172,229,367 |
| AMERIPRISE FINANCIAL INC | 0.29% | 181,464 | -16% | 0.03% | $168,357,896 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
37
Latest
Q2 2026
Rows shown
1-25 of 37
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 28,237,659 | $26,111,994,256 | -$414,474,254 | $927.77 | 506 |
| 2026 Q1 | 28,815,681 | $21,081,314,665 | -$843,239,059 | $730.25 | 476 |
| 2025 Q4 | 29,739,977 | $24,999,869,126 | -$642,174,773 | $840.95 | 508 |
| 2025 Q3 | 30,517,541 | $22,513,715,603 | -$1,073,799,877 | $737.56 | 463 |
| 2025 Q2 | 32,113,379 | $17,700,251,639 | -$650,880,957 | $551.22 | 432 |
| 2025 Q1 | 33,350,566 | $19,728,647,418 | -$538,199,538 | $591.86 | 440 |
| 2024 Q4 | 34,127,043 | $20,989,465,522 | -$514,339,139 | $615.00 | 392 |
| 2024 Q3 | 35,023,889 | $18,983,773,082 | +$318,558,493 | $542.08 | 353 |
| 2024 Q2 | 34,272,091 | $14,739,068,000 | +$209,398,089 | $430.04 | 333 |
| 2024 Q1 | 33,972,829 | $13,375,733,075 | +$491,825,471 | $393.72 | 323 |
| 2023 Q4 | 32,743,580 | $12,457,326,565 | -$54,572,297 | $380.43 | 344 |
| 2023 Q3 | 32,304,467 | $15,882,569,669 | +$743,873,334 | $491.63 | 339 |
| 2023 Q2 | 30,837,175 | $12,017,706,842 | -$124,589,442 | $389.73 | 284 |
| 2023 Q1 | 31,161,539 | $11,606,411,682 | +$212,961,249 | $372.58 | 268 |
| 2022 Q4 | 30,636,859 | $11,606,887,640 | -$327,489,209 | $378.83 | 269 |
| 2022 Q3 | 31,719,850 | $11,203,694,460 | -$1,130,342,709 | $353.05 | 247 |
| 2022 Q2 | 32,849,679 | $12,441,524,780 | +$297,990,141 | $378.88 | 226 |
| 2022 Q1 | 32,214,227 | $10,157,335,912 | +$1,037,726,968 | $315.31 | 196 |
| 2021 Q4 | 28,919,142 | $10,126,721,772 | +$177,117,824 | $350.19 | 203 |
| 2021 Q3 | 28,383,120 | $8,571,126,445 | -$97,752,555 | $302.00 | 178 |
| 2021 Q2 | 28,455,441 | $8,567,827,463 | +$1,980,236 | $301.07 | 173 |
| 2021 Q1 | 28,512,399 | $7,852,287,235 | +$830,872,986 | $275.39 | 185 |
| 2020 Q4 | 25,489,136 | $7,496,328,068 | -$41,742,172 | $294.09 | 170 |
| 2020 Q3 | 25,619,531 | $6,725,637,706 | -$279,942,268 | $262.52 | 154 |
| 2020 Q2 | 26,726,537 | $6,038,628,842 | +$787,556,149 | $225.23 | 162 |