AMERICAN CENTURY COMPANIES INC
Position in XENE — Xenon Pharmaceuticals Inc.
CIK 748054
KANSAS CITY, MO
Position in XENE
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$53,377,494
+$13,875,385 QoQ
Shares Held
884,319
+30.2% QoQ
Ownership
0.913%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#29
of 314 holders
Holding Since
Sep 2022
11 quarters on record
Voting authority
Sole 86%
Shared 14%
None 0%
Common Shares in XENE Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026AMERICAN CENTURY COMPANIES INC holds $3,568,637,643 across 178 Biotechnology names. XENE ranks #17 (1.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,853,956 | $558,096,374 | |
| 2 | ASND |
Ascendis Pharma A/S
|
1,400,575 | $373,561,364 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
580,901 | $288,550,953 | |
| 4 | ARGX |
Argenx SE
|
173,193 | $160,683,269 | |
| 5 | IONS |
Ionis Pharmaceuticals Inc
|
1,947,076 | $154,383,656 | |
| 6 | EXEL |
Exelixis, Inc.
|
1,791,664 | $97,484,438 | |
| 7 | HRMY |
Harmony Biosciences Holdings, Inc.
|
2,539,512 | $92,463,631 | |
| 8 | GPCR |
Structure Therapeutics Inc.
|
1,682,179 | $90,282,546 |
All Filings in XENE
Export CSV
11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $53,377,494 | 884,319 | Shares | Defined | 2026-08-12 | |
| 2026-03-31 | $39,502,109 | 679,314 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $30,498,799 | 680,473 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $26,469,168 | 659,257 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $21,279,524 | 679,857 | Shares | Defined | 2025-08-12 | |
| 2024-06-30 | $233,121 | 5,979 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $415,647 | 9,655 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $331,585 | 7,199 | Shares | Defined | 2024-02-13 | |
| 2023-03-31 | $339,074 | 9,474 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $433,927 | 11,005 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $240,787 | 6,670 | Shares | Defined | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||