Position in ARGX
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$235,445,759
+$66,498,040 QoQ
Shares Held
253,776
+9.7% QoQ
Ownership
0.408%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
#19
of 504 holders
Holding Since
Mar 2021
22 quarters on record
Voting authority
Sole 90%
Shared 0%
None 10%
Common Shares in ARGX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Clearbridge Investments, LLC holds $2,924,434,154 across 28 Biotechnology names. ARGX ranks #3 (8.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,342,915 | $1,163,796,167 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,259,483 | $379,142,167 | |
| 3 | ARGX |
Argenx SE
This page
|
253,776 | $235,445,759 | |
| 4 | TGTX |
Tg Therapeutics, Inc.
|
2,650,192 | $145,601,548 | |
| 5 | PTGX |
Protagonist Therapeutics, Inc
|
725,335 | $88,911,564 | |
| 6 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
696,473 | $77,329,397 | |
| 7 | INSM |
INSMED Inc
|
715,922 | $76,331,603 | |
| 8 | MIRM |
Mirum Pharmaceuticals, Inc.
|
639,734 | $74,893,659 |
All Filings in ARGX
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22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $235,445,759 | 253,776 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $168,947,719 | 231,356 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $432,049,835 | 513,764 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $558,231,136 | 756,862 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $426,019,196 | 772,866 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $393,216,166 | 664,368 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $387,344,220 | 629,828 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $319,555,075 | 589,498 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $265,535,078 | 617,466 | Shares | Sole | 2024-08-27 | |
| 2024-03-31 | $234,766,180 | 596,277 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $166,170,682 | 436,797 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $169,299,673 | 344,364 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $66,047,543 | 169,470 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $49,420,501 | 132,644 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $53,865,458 | 142,189 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $57,730,382 | 163,519 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $62,547,783 | 165,086 | Shares | Sole | 2022-08-11 | |
| 2022-03-31 | $70,788,356 | 224,504 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $78,433,805 | 223,975 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $85,582,874 | 283,387 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $74,574,737 | 247,699 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $51,547,500 | 187,180 | Shares | Sole | 2021-05-13 | |
| No filing history on record for this holder in this stock. | ||||||