American Century Companies Portfolio holdings
American Century Companies, Inc., founded in 1958 by James E. Stowers Jr. as Twentieth Century Mutual Funds and headquartered in Kansas City, Missouri, is a privately held investment management firm renowned for its focus on delivering investment results to clients while supporting medical research. Starting with just $100,000 from 24 shareholders, it rebranded to American Century Investments in 1997 and now manages hundreds of billions in assets across mutual funds, ETFs, and institutional portfolios, emphasizing no-load funds and a client-centric approach. The firm’s unique ownership structure sees over 40% of its profits funneled to the Stowers Institute for Medical Research, which it majority-owns, funding groundbreaking biomedical research, while Nomura Holdings holds a significant minority stake. With a global presence in cities like New York, London, and Hong Kong, and a workforce of around 1,400, American Century blends financial expertise with a mission to improve lives through both wealth creation and scientific advancement.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amphenol
APH
|
+$460M |
| 2 |
Broadcom
AVGO
|
+$298M |
| 3 |
Sysco
SYY
|
+$225M |
| 4 |
MRSH
Marsh
MRSH
|
+$200M |
| 5 |
Ascendis Pharma A/S
ASND
|
+$186M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$573M |
| 2 |
Visa
V
|
+$465M |
| 3 |
Apple
AAPL
|
+$461M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
+$363M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$358M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 26.8% |
| 2 | Financials | 13.6% |
| 3 | Consumer Discretionary | 12.52% |
| 4 | Industrials | 10.05% |
| 5 | Healthcare | 9.86% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2751
Corbus Pharmaceuticals
CRBP
$196M
| $109K | ﹤0.01% |
+13,411
| New | +$166K |
|
2752
Peloton Interactive
PTON
$2.36B
| $108K | ﹤0.01% |
17,589
-32,109
| -65% | -$226K |
|
|
NAK
2753
Northern Dynasty Minerals
NAK
$919M
| $108K | ﹤0.01% |
54,653
+931
| +2% | +$1.8K |
|
|
FLNA
2754
Filana Therapeutics
FLNA
$45.3M
| $106K | ﹤0.01% |
53,367
+14,406
| +37% | +$46.1K |
|
|
LNKB
2755
DELISTED
LINKBANCORP
LNKB
| $106K | ﹤0.01% |
+12,786
| New | +$96.1K |
|
2756
PepGen
PEPG
$202M
| $103K | ﹤0.01% |
+15,750
| New | +$81.7K |
|
|
ALMS
2757
Alumis Inc
ALMS
$3.21B
| $101K | ﹤0.01% |
10,322
-992
| -9% | -$6.92K |
|
2758
Outset Medical
OM
$85M
| $100K | ﹤0.01% |
26,943
+3,081
| +13% | +$26.4K |
|
2759
Invivyd
IVVD
$206M
| $98.6K | ﹤0.01% |
+39,930
| New | +$83K |
|
|
INN
2760
Summit Hotel Properties
INN
$651M
| $97.1K | ﹤0.01% |
19,937
-9,132
| -31% | -$47.8K |
|
2761
3D Systems Corp
DDD
$598M
| $96K | ﹤0.01% |
+54,221
| New | +$132K |
|
2762
Forrester Research
FORR
$223M
| $95.2K | ﹤0.01% |
11,718
+1,091
| +10% | +$8.57K |
|
2763
SITE Centers
SITC
$158M
| $92.7K | ﹤0.01% |
14,433
+204
| +1% | +$1.54K |
|
|
IAUX
2764
i-80 Gold Corp
IAUX
$1.44B
| $91.4K | ﹤0.01% |
+62,120
| New | +$70.6K |
|
|
YRD
2765
Yiren Digital
YRD
$104M
| $89.2K | ﹤0.01% |
24,096
| – | – |
|
2766
Ranpak Holdings
PACK
$474M
| $86.6K | ﹤0.01% |
+16,014
| New | +$84.2K |
|
2767
Korro Bio
KRRO
$194M
| $84.8K | ﹤0.01% |
10,590
+1,833
| +21% | +$42.8K |
|
2768
Sensus Healthcare
SRTS
$53M
| $84.7K | ﹤0.01% |
21,272
| – | – |
|
2769
Siebert Financial
SIEB
$77.7M
| $82.4K | ﹤0.01% |
23,464
-4,792
| -17% | -$15.2K |
|
2770
inTEST
INTT
$180M
| $80.8K | ﹤0.01% |
10,812
| – | – |
|
2771
Ultralife
ULBI
$121M
| $78.6K | ﹤0.01% |
13,747
| – | – |
|
2772
Definitive Healthcare
DH
$67.9M
| $77.9K | ﹤0.01% |
27,160
-713
| -3% | -$1.98K |
|
2773
RF Industries
RFIL
$145M
| $77.4K | ﹤0.01% |
13,390
-4,585
| -26% | -$31.7K |
|
|
USAS
2774
Americas Gold and Silver
USAS
$1.71B
| $76.3K | ﹤0.01% |
+14,872
| New | +$66.9K |
|
2775
Neumora Therapeutics
NMRA
$326M
| $69.5K | ﹤0.01% |
+38,837
| New | +$85K |
|
Similar funds
American Century Companies's Q4 2025 Portfolio in Review
As of Q4 2025, American Century Companies held 2,902 positions worth $199B, up 1.2% from $197B the previous quarter. Its ten largest holdings account for 27% of the portfolio.
American Century Companies's Q4 2025 filing shows 123 new, 1,653 increased, 947 reduced and 91 closed positions. Its largest new stake was Amrize Ltd: 2,173,524 shares worth $118M. The largest sale was NVIDIA, an estimated $573M.
By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 28% a quarter earlier, followed by Financials and Consumer Discretionary.
- American Century Companies's largest Q4 2025 buy was Amrize Ltd: 2,173,524 shares worth $118M.
- American Century Companies added most to Amphenol in Q4 2025, an estimated $460M increase.
- American Century Companies's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $573M.
- American Century Companies fully exited Premier in Q4 2025, selling an estimated $91.5M.
- American Century Companies's ten largest holdings make up 27% of its $199B portfolio in Q4 2025.
- American Century Companies opened 123 new positions and closed 91 in Q4 2025.
- American Century Companies's portfolio value rose 1.2% quarter-over-quarter to $199B.
Based on American Century Companies's 13F filing for Q4 2025, filed 13 Feb 2026.