AMERICAN CENTURY COMPANIES INC
Position in CMPX — Compass Therapeutics, Inc.
CIK 748054
KANSAS CITY, MO
Position in CMPX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$414,355
+$197,343 QoQ
Shares Held
78,328
+93.8% QoQ
Ownership
0.043%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2025
4 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CMPX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026AMERICAN CENTURY COMPANIES INC holds $3,844,311,104 across 169 Biotechnology names. CMPX ranks #116 (0.0% 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 CMPX
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $414,355 | 78,328 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $217,012 | 40,412 | Shares | Defined | 2026-02-13 | |
| 2025-06-30 | $71,778 | 27,607 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $139,995 | 73,682 | Shares | Defined | 2025-05-13 | |
| No filing history on record for this holder in this stock. | ||||||