AMERICAN CENTURY COMPANIES INC
Position in HALO — Halozyme Therapeutics, Inc.
CIK 748054
KANSAS CITY, MO
Position in HALO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$13,448,921
-$12,152,604 QoQ
Shares Held
208,091
-45.3% QoQ
Ownership
0.175%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in HALO Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026AMERICAN CENTURY COMPANIES INC holds $3,844,388,733 across 170 Biotechnology names. HALO ranks #43 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,802,363 | $596,347,845 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
562,097 | $434,298,626 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
813,285 | $363,164,283 | |
| 4 | ASND |
Ascendis Pharma A/S
|
1,397,119 | $319,563,028 | |
| 5 | INSM |
INSMED Inc
|
925,799 | $151,386,652 | |
| 6 | ARGX |
Argenx SE
|
173,700 | $126,844,425 | |
| 7 | IONS |
Ionis Pharmaceuticals Inc
|
1,663,803 | $124,934,967 | |
| 8 | CPRX |
Catalyst Pharmaceuticals, Inc.
|
4,138,416 | $102,467,180 |
All Filings in HALO
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $13,448,921 | 208,091 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $25,601,525 | 380,409 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $12,581,917 | 171,556 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $6,894,002 | 132,526 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $57,136,239 | 895,412 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $41,420,958 | 866,366 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $48,727,667 | 851,287 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $43,001,487 | 821,266 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $30,458,010 | 748,722 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $26,287,245 | 711,235 | Shares | Defined | 2024-02-13 | |
| 2023-06-30 | $22,330,215 | 619,080 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $20,271,481 | 530,806 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $34,074,166 | 598,843 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $24,900,552 | 629,756 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $26,917,220 | 611,755 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $22,342,929 | 560,254 | Shares | Defined | 2022-05-11 | |
| 2021-12-31 | $20,503,360 | 509,907 | Shares | Defined | 2022-02-07 | |
| 2021-09-30 | $18,331,384 | 450,624 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $19,138,180 | 421,453 | Shares | Defined | 2021-08-05 | |
| 2021-03-31 | $17,516,928 | 420,171 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $19,016,072 | 445,237 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $11,381,526 | 433,087 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $13,057,890 | 487,053 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $7,780,621 | 432,497 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||