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 | |
|---|---|---|---|---|---|---|
1001
Nike
NKE
$61.2B
| $27.8M | 0.01% |
435,616
-174,708
| -29% | -$11.4M |
|
1002
FirstService
FSV
$6.24B
| $27.7M | 0.01% |
178,054
-55,775
| -24% | -$9.07M |
|
1003
Scansource
SCSC
$1.06B
| $27.6M | 0.01% |
706,871
-132,205
| -16% | -$5.46M |
|
|
PLGO
1004
Pelagos Insurance Capital
PLGO
$2.08B
| $27.6M | 0.01% |
1,409,833
-812,249
| -37% | -$15.1M |
|
|
KE
1005
Kimball Electronics
KE
$606M
| $27.6M | 0.01% |
991,341
+153,898
| +18% | +$4.44M |
|
1006
Broadstone Net Lease
BNL
$4.31B
| $27.5M | 0.01% |
1,581,087
+225,639
| +17% | +$4.06M |
|
1007
Twist Bioscience
TWST
$7.85B
| $27.5M | 0.01% |
865,634
+27,570
| +3% | +$860K |
|
|
AAUC
1008
Allied Gold Corp
AAUC
$3.14B
| $27.4M | 0.01% |
1,196,594
+662,528
| +124% | +$12.8M |
|
1009
Compass Minerals
CMP
$1.12B
| $27.4M | 0.01% |
1,394,242
+157,358
| +13% | +$2.91M |
|
1010
ENI
E
$79.6B
| $27.4M | 0.01% |
721,064
+84,173
| +13% | +$3.09M |
|
1011
Astec Industries
ASTE
$994M
| $27.3M | 0.01% |
630,821
-41,209
| -6% | -$1.88M |
|
|
ACLX
1012
DELISTED
Arcellx
ACLX
| $27.3M | 0.01% |
419,080
+7,150
| +2% | +$570K |
|
|
AD
1013
Array Digital Infrastructure
AD
$3.04B
| $27.2M | 0.01% |
507,684
+71,998
| +17% | +$3.55M |
|
1014
Chubb
CB
$132B
| $27.1M | 0.01% |
86,893
+6,016
| +7% | +$1.76M |
|
1015
Heritage Insurance Holdings
HRTG
$980M
| $27.1M | 0.01% |
926,776
+38,324
| +4% | +$1.04M |
|
1016
Community Trust Bancorp
CTBI
$1.44B
| $27.1M | 0.01% |
479,076
+26,081
| +6% | +$1.44M |
|
1017
Vanguard S&P 500 ETF
VOO
$1.04T
| $27M | 0.01% |
43,100
+1,000
| +2% | +$621K |
|
|
INR
1018
Infinity Natural Resources
INR
$256M
| $27M | 0.01% |
1,834,586
+508,212
| +38% | +$6.66M |
|
1019
Murphy USA
MUSA
$10.1B
| $27M | 0.01% |
66,878
+3,240
| +5% | +$1.24M |
|
1020
Marten Transport
MRTN
$1.22B
| $27M | 0.01% |
2,369,634
+148,968
| +7% | +$1.58M |
|
1021
Metallus
MTUS
$900M
| $26.9M | 0.01% |
1,568,361
+29,232
| +2% | +$501K |
|
1022
Constellation Brands
STZ
$22.9B
| $26.8M | 0.01% |
194,583
+14,967
| +8% | +$2.05M |
|
1023
S&T Bancorp
STBA
$1.82B
| $26.8M | 0.01% |
680,988
-14,676
| -2% | -$567K |
|
|
RPC
1024
Ridgepost Capital
RPC
$972M
| $26.7M | 0.01% |
2,725,945
+51,153
| +2% | +$519K |
|
1025
Costamare
CMRE
$1.71B
| $26.5M | 0.01% |
1,679,810
+179,346
| +12% | +$2.48M |
|
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.