AMERICAN CENTURY COMPANIES INC
Position in CRBU — Caribou Biosciences, Inc.
CIK 748054
KANSAS CITY, MO
Position in CRBU
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$247,420
+$33,760 QoQ
Shares Held
140,580
+25.0% QoQ
Ownership
0.131%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#40
of 137 holders
Holding Since
Dec 2022
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CRBU 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. CRBU ranks #145 (0.0% 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 CRBU
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $247,420 | 140,580 | Shares | Defined | 2026-08-12 | |
| 2026-03-31 | $213,660 | 112,453 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $178,800 | 112,453 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $190,598 | 81,802 | Shares | Defined | 2025-11-12 | |
| 2024-12-31 | $254,116 | 159,822 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $286,945 | 146,401 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $205,047 | 125,029 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $557,684 | 108,499 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $430,506 | 75,132 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $180,693 | 37,802 | Shares | Defined | 2023-11-13 | |
| 2023-06-30 | $116,569 | 27,428 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $83,292 | 15,686 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $84,340 | 13,430 | Shares | Defined | 2023-02-13 | |
| No filing history on record for this holder in this stock. | ||||||