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 | |
|---|---|---|---|---|---|---|
2276
Columbia Financial
CLBK
$1.12B
| $1.17M | ﹤0.01% |
66,923
-9,408
| -12% | -$162K |
|
2277
Compass
COMP
$9.49B
| $1.17M | ﹤0.01% |
159,704
+64,627
| +68% | +$679K |
|
2278
MainStreet Bancshares
MNSB
$170M
| $1.17M | ﹤0.01% |
+52,544
| New | +$1.13M |
|
2279
New Oriental
EDU
$9.17B
| $1.17M | ﹤0.01% |
20,579
| – | – |
|
|
LKFT
2280
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.76B
| $1.16M | ﹤0.01% |
38,790
+12,061
| +45% | +$399K |
|
2281
Cannae Holdings
CNNE
$638M
| $1.16M | ﹤0.01% |
102,059
-1,348
| -1% | -$18.1K |
|
2282
Radiant Logistics
RLGT
$391M
| $1.15M | ﹤0.01% |
162,824
-17,293
| -10% | -$121K |
|
2283
Box
BOX
$4.68B
| $1.15M | ﹤0.01% |
48,552
-460,823
| -90% | -$11.6M |
|
2284
Integer Holdings
ITGR
$4.25B
| $1.13M | ﹤0.01% |
12,860
+4,729
| +58% | +$403K |
|
2285
Kratos Defense & Security Solutions
KTOS
$11.7B
| $1.13M | ﹤0.01% |
15,969
+821
| +5% | +$78.7K |
|
2286
AngioDynamics
ANGO
$649M
| $1.12M | ﹤0.01% |
98,882
-1,015
| -1% | -$11K |
|
2287
Smart Sand
SND
$200M
| $1.12M | ﹤0.01% |
219,501
+191,351
| +680% | +$862K |
|
2288
Uranium Energy
UEC
$5.6B
| $1.12M | ﹤0.01% |
83,114
+37,161
| +81% | +$573K |
|
2289
USCB Financial Holdings
USCB
$405M
| $1.12M | ﹤0.01% |
+60,385
| New | +$1.15M |
|
2290
Astrana Health
ASTH
$1.85B
| $1.12M | ﹤0.01% |
45,603
+9,228
| +25% | +$218K |
|
2291
Thomson Reuters
TRI
$44.9B
| $1.12M | ﹤0.01% |
12,164
+217
| +2% | +$22.9K |
|
|
SGI
2292
Somnigroup International
SGI
$13.5B
| $1.11M | ﹤0.01% |
15,074
-20,660
| -58% | -$1.79M |
|
2293
American Vanguard Corp
AVD
$68.7M
| $1.11M | ﹤0.01% |
445,788
-4,869
| -1% | -$20.7K |
|
2294
Innovative Industrial Properties
IIPR
$1.66B
| $1.11M | ﹤0.01% |
22,089
+1,968
| +10% | +$99.3K |
|
2295
Matthews International
MATW
$717M
| $1.11M | ﹤0.01% |
42,904
-15,074
| -26% | -$395K |
|
2296
Warby Parker
WRBY
$3.25B
| $1.1M | ﹤0.01% |
52,296
+20,467
| +64% | +$508K |
|
|
DEFT
2297
Defi Technologies
DEFT
$180M
| $1.1M | ﹤0.01% |
1,938,884
+1,537,548
| +383% | +$1.17M |
|
2298
CEVA Inc
CEVA
$925M
| $1.1M | ﹤0.01% |
58,809
-529
| -0.9% | -$11.1K |
|
2299
Montauk Renewables
MNTK
$248M
| $1.1M | ﹤0.01% |
954,468
-643
| -0.1% | -$969 |
|
2300
B&G Foods
BGS
$274M
| $1.08M | ﹤0.01% |
223,732
-3,921
| -2% | -$19K |
|
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.