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 | |
|---|---|---|---|---|---|---|
2701
Tonix Pharmaceuticals
TNXP
$217M
| $201K | ﹤0.01% |
12,850
+2,806
| +28% | +$51.7K |
|
|
ACH
2702
Accendra Health
ACH
$84.6M
| $194K | ﹤0.01% |
69,202
-136,150
| -66% | -$487K |
|
2703
FuelCell Energy
FCEL
$1.63B
| $193K | ﹤0.01% |
26,450
+16,283
| +160% | +$133K |
|
2704
PetMed Express
PETS
$42.3M
| $192K | ﹤0.01% |
59,906
| – | – |
|
2705
UNIFI
UFI
$125M
| $191K | ﹤0.01% |
54,613
-7,117
| -12% | -$27.5K |
|
2706
TechTarget
TTGT
$276M
| $190K | ﹤0.01% |
35,157
+546
| +2% | +$2.94K |
|
|
NIQ
2707
NIQ Global Intelligence PLC
NIQ
$5.01B
| $188K | ﹤0.01% |
+11,398
| New | +$167K |
|
2708
RE/MAX Holdings
RMAX
$262M
| $188K | ﹤0.01% |
24,735
-42,902
| -63% | -$348K |
|
2709
Magnachip Semiconductor
MX
$139M
| $186K | ﹤0.01% |
72,843
-3,469
| -5% | -$9.66K |
|
2710
Alto Neuroscience
ANRO
$1.26B
| $184K | ﹤0.01% |
+10,360
| New | +$130K |
|
2711
Expensify
EXFY
$205M
| $183K | ﹤0.01% |
121,441
| – | – |
|
2712
Caribou Biosciences
CRBU
$162M
| $179K | ﹤0.01% |
112,453
+30,651
| +37% | +$64.3K |
|
|
TSSI
2713
TSS Inc
TSSI
$350M
| $178K | ﹤0.01% |
25,240
-26,676
| -51% | -$345K |
|
|
EEX
2714
DELISTED
Emerald Holding
EEX
| $178K | ﹤0.01% |
39,772
| – | – |
|
2715
Cedar Fair
FUN
$1.73B
| $177K | ﹤0.01% |
+11,555
| New | +$209K |
|
|
JFIN
2716
Jiayin Group
JFIN
$121M
| $177K | ﹤0.01% |
30,533
+111
| +0.4% | +$935 |
|
2717
Nkarta
NKTX
$168M
| $176K | ﹤0.01% |
95,205
| – | – |
|
2718
Pacific Biosciences
PACB
$361M
| $176K | ﹤0.01% |
+94,063
| New | +$181K |
|
|
BLDP
2719
Ballard Power Systems
BLDP
$793M
| $176K | ﹤0.01% |
68,831
+12,033
| +21% | +$37.3K |
|
2720
Duluth Holdings
DLTH
$152M
| $171K | ﹤0.01% |
81,973
| – | – |
|
|
HTT
2721
High Templar Tech Ltd
HTT
$391M
| $170K | ﹤0.01% |
47,885
+7,246
| +18% | +$32.3K |
|
2722
Comstock
LODE
$262M
| $170K | ﹤0.01% |
45,109
+19,651
| +77% | +$66.8K |
|
2723
Aldeyra Therapeutics
ALDX
$91.7M
| $168K | ﹤0.01% |
32,460
+177
| +0.5% | +$909 |
|
2724
Offerpad Solutions
OPAD
$22.3M
| $168K | ﹤0.01% |
13,894
+12,579
| +957% | +$278K |
|
|
FPI
2725
Farmland Partners
FPI
$427M
| $167K | ﹤0.01% |
17,202
+252
| +1% | +$2.52K |
|
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.