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 | |
|---|---|---|---|---|---|---|
1876
Mine Safety
MSA
$7.27B
| $3.49M | ﹤0.01% |
21,816
-16,078
| -42% | -$2.62M |
|
1877
Ryanair
RYAAY
$30.5B
| $3.49M | ﹤0.01% |
48,307
+31,243
| +183% | +$2.03M |
|
1878
Smith & Wesson
SWBI
$642M
| $3.47M | ﹤0.01% |
351,654
-106,022
| -23% | -$1.02M |
|
1879
DoubleVerify
DV
$2.04B
| $3.46M | ﹤0.01% |
302,806
+14,841
| +5% | +$164K |
|
1880
Centuri Holdings
CTRI
$2.38B
| $3.45M | ﹤0.01% |
136,769
+35,702
| +35% | +$798K |
|
1881
Acadia Pharmaceuticals
ACAD
$4.86B
| $3.45M | ﹤0.01% |
128,998
-289,298
| -69% | -$6.91M |
|
1882
nVent Electric
NVT
$27.9B
| $3.44M | ﹤0.01% |
33,768
+1,994
| +6% | +$207K |
|
1883
TriMas Corp
TRS
$1.39B
| $3.44M | ﹤0.01% |
97,053
-4,626
| -5% | -$162K |
|
|
AXIA.PRC
1884
DELISTED
AXIA Energia American Depositary Shares Preferred Class C
AXIA.PRC
| $3.43M | ﹤0.01% |
+398,142
| New | +$3.44M |
|
1885
MasterBrand
MBC
$1.87B
| $3.43M | ﹤0.01% |
310,819
-91,059
| -23% | -$1.07M |
|
1886
Federal Realty Investment Trust
FRT
$10.4B
| $3.38M | ﹤0.01% |
33,496
+1,604
| +5% | +$158K |
|
1887
Clorox
CLX
$12.8B
| $3.36M | ﹤0.01% |
33,333
-37,929
| -53% | -$4.12M |
|
1888
Azenta
AZTA
$1.46B
| $3.36M | ﹤0.01% |
101,039
-11,997
| -11% | -$392K |
|
1889
CTS Corp
CTS
$1.79B
| $3.33M | ﹤0.01% |
77,723
-4,686
| -6% | -$197K |
|
1890
Western Union
WU
$2.29B
| $3.32M | ﹤0.01% |
356,845
+55,149
| +18% | +$487K |
|
1891
Zumiez
ZUMZ
$317M
| $3.31M | ﹤0.01% |
126,911
+70,382
| +125% | +$1.69M |
|
1892
Waterstone Financial
WSBF
$382M
| $3.29M | ﹤0.01% |
199,005
+32,021
| +19% | +$502K |
|
1893
Dyne Therapeutics
DYN
$4.78B
| $3.29M | ﹤0.01% |
168,304
+136,919
| +436% | +$2.59M |
|
1894
ICU Medical
ICUI
$4.58B
| $3.28M | ﹤0.01% |
23,011
+16,749
| +267% | +$2.24M |
|
1895
FIGS
FIGS
$2.44B
| $3.28M | ﹤0.01% |
288,880
+2,277
| +0.8% | +$21.3K |
|
1896
IDT Corp
IDT
$1.65B
| $3.28M | ﹤0.01% |
64,058
-7,806
| -11% | -$391K |
|
1897
Aspen Aerogels
ASPN
$489M
| $3.28M | ﹤0.01% |
1,157,978
+686,666
| +146% | +$3.54M |
|
1898
MillerKnoll
MLKN
$1.62B
| $3.28M | ﹤0.01% |
179,209
+31,636
| +21% | +$516K |
|
1899
Synaptics
SYNA
$4.23B
| $3.26M | ﹤0.01% |
44,090
+15,881
| +56% | +$1.12M |
|
1900
Investar Holding Corp
ISTR
$426M
| $3.26M | ﹤0.01% |
122,011
+34,693
| +40% | +$853K |
|
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.