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 |
Microsoft
MSFT
|
+$430M |
| 2 |
MRSH
Marsh
MRSH
|
+$342M |
| 3 |
Honeywell
HON
|
+$212M |
| 4 |
Owens Corning
OC
|
+$206M |
| 5 |
Coeur Mining
CDE
|
+$174M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$513M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$440M |
| 3 |
NVIDIA
NVDA
|
+$416M |
| 4 |
Kenvue
KVUE
|
+$306M |
| 5 |
Apple
AAPL
|
+$213M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 25.15% |
| 2 | Financials | 13.37% |
| 3 | Consumer Discretionary | 11.55% |
| 4 | Industrials | 10.99% |
| 5 | Healthcare | 9.31% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1826
AptarGroup
ATR
$8.5B
| $4.39M | ﹤0.01% |
34,870
-1,471
| -4% | -$192K |
|
1827
SharkNinja
SN
$26.2B
| $4.39M | ﹤0.01% |
41,476
+29,338
| +242% | +$3.43M |
|
1828
Relay Therapeutics
RLAY
$4.37B
| $4.38M | ﹤0.01% |
440,185
+7,692
| +2% | +$68.8K |
|
1829
Keurig Dr Pepper
KDP
$39.9B
| $4.37M | ﹤0.01% |
166,156
+13,515
| +9% | +$379K |
|
1830
InfuSystem Holdings
INFU
$241M
| $4.37M | ﹤0.01% |
473,021
+120,863
| +34% | +$1.06M |
|
1831
Middleby
MIDD
$5.89B
| $4.35M | ﹤0.01% |
32,802
+1,416
| +5% | +$215K |
|
|
AXIA.PRC
1832
DELISTED
AXIA Energia American Depositary Shares Preferred Class C
AXIA.PRC
| $4.34M | ﹤0.01% |
397,589
-553
| -0.1% | -$5.79K |
|
1833
Genuine Parts
GPC
$18.5B
| $4.34M | ﹤0.01% |
41,051
-3,870
| -9% | -$479K |
|
1834
FIGS
FIGS
$2.39B
| $4.3M | ﹤0.01% |
290,871
+1,991
| +0.7% | +$25.5K |
|
1835
Synaptics
SYNA
$4.09B
| $4.27M | ﹤0.01% |
60,942
+16,852
| +38% | +$1.37M |
|
1836
Aspen Aerogels
ASPN
$522M
| $4.27M | ﹤0.01% |
1,247,783
+89,805
| +8% | +$303K |
|
1837
Aviat Networks
AVNW
$270M
| $4.26M | ﹤0.01% |
188,625
-13,276
| -7% | -$317K |
|
1838
Cohen & Steers
CNS
$4.22B
| $4.26M | ﹤0.01% |
68,067
+46,159
| +211% | +$3.01M |
|
1839
Parke Bancorp
PKBK
$403M
| $4.26M | ﹤0.01% |
149,841
+80,947
| +117% | +$2.21M |
|
1840
Quaker Houghton
KWR
$2.96B
| $4.25M | ﹤0.01% |
34,247
+147
| +0.4% | +$21.7K |
|
1841
J&J Snack Foods
JJSF
$1.68B
| $4.25M | ﹤0.01% |
53,648
+20,814
| +63% | +$1.8M |
|
1842
BioNTech
BNTX
$23.3B
| $4.23M | ﹤0.01% |
47,643
-584
| -1% | -$60K |
|
1843
International Flavors & Fragrances
IFF
$21.7B
| $4.22M | ﹤0.01% |
58,153
-4,855
| -8% | -$356K |
|
1844
EXL Service
EXLS
$5.32B
| $4.21M | ﹤0.01% |
138,372
+13,179
| +11% | +$455K |
|
1845
Community Bank
CBU
$3.37B
| $4.21M | ﹤0.01% |
71,768
+25,029
| +54% | +$1.53M |
|
1846
Southwest Gas
SWX
$6.56B
| $4.21M | ﹤0.01% |
48,409
-54,332
| -53% | -$4.63M |
|
1847
Moelis & Co
MC
$4.72B
| $4.17M | ﹤0.01% |
73,222
+47,260
| +182% | +$3.07M |
|
1848
Watsco Inc
WSO
$13.5B
| $4.16M | ﹤0.01% |
11,447
+179
| +2% | +$69.4K |
|
1849
First United
FUNC
$287M
| $4.15M | ﹤0.01% |
113,360
+3,232
| +3% | +$120K |
|
1850
Enerpac Tool Group
EPAC
$1.89B
| $4.15M | ﹤0.01% |
113,834
-11,284
| -9% | -$447K |
|
Similar funds
American Century Companies's Q1 2026 Portfolio in Review
As of Q1 2026, American Century Companies held 2,945 positions worth $194B, down 2.4% from $199B the previous quarter. Its ten largest holdings account for 24% of the portfolio.
American Century Companies's Q1 2026 filing shows 133 new, 1,604 increased, 1,039 reduced and 115 closed positions. Its largest new stake was Sunbelt Rentals Holdings: 2,015,224 shares worth $127M. The largest sale was Amazon, an estimated $513M.
By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 27% a quarter earlier, followed by Financials and Consumer Discretionary.
- American Century Companies's largest Q1 2026 buy was Sunbelt Rentals Holdings: 2,015,224 shares worth $127M.
- American Century Companies added most to Microsoft in Q1 2026, an estimated $430M increase.
- American Century Companies's biggest Q1 2026 reduction was Amazon, cutting an estimated $513M.
- American Century Companies fully exited Icon in Q1 2026, selling an estimated $189M.
- American Century Companies's ten largest holdings make up 24% of its $194B portfolio in Q1 2026.
- American Century Companies opened 133 new positions and closed 115 in Q1 2026.
- American Century Companies's portfolio value fell 2.4% quarter-over-quarter to $194B.
Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.