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 | |
|---|---|---|---|---|---|---|
601
Sylvamo
SLVM
$1.55B
| $66.1M | 0.03% |
1,372,059
+81,102
| +6% | +$3.69M |
|
602
Mercury Insurance
MCY
$5.81B
| $65.8M | 0.03% |
699,491
+120,820
| +21% | +$10.5M |
|
603
TPG
TPG
$8.86B
| $65.8M | 0.03% |
1,030,026
-21,756
| -2% | -$1.28M |
|
604
Coupang
CPNG
$29.3B
| $65.4M | 0.03% |
2,773,371
-2,011,646
| -42% | -$57.2M |
|
|
HOLX
605
DELISTED
Hologic
HOLX
| $65.4M | 0.03% |
878,043
-970,849
| -53% | -$70.9M |
|
606
Reddit
RDDT
$30.4B
| $65.2M | 0.03% |
283,804
+4,647
| +2% | +$977K |
|
607
Cathay General Bancorp
CATY
$4.31B
| $65.2M | 0.03% |
1,347,674
+54,859
| +4% | +$2.64M |
|
|
CGAU
608
Centerra Gold
CGAU
$4.15B
| $65.1M | 0.03% |
4,519,253
-860,024
| -16% | -$10.8M |
|
609
American Century Quality Diversified International ETF
QINT
$695M
| $64.9M | 0.03% |
1,011,391
-178,286
| -15% | -$11.1M |
|
610
Materion
MTRN
$5.88B
| $64.8M | 0.03% |
521,376
+156,164
| +43% | +$19.3M |
|
611
RadNet
RDNT
$6.08B
| $64.8M | 0.03% |
908,032
-355,469
| -28% | -$27.4M |
|
612
SSR Mining
SSRM
$6.49B
| $64.7M | 0.03% |
2,950,116
+646,277
| +28% | +$14.4M |
|
613
Encompass Health
EHC
$12.2B
| $64.4M | 0.03% |
606,306
-111,832
| -16% | -$13M |
|
614
State Street SPDR Portfolio High Yield Bond ETF
SPHY
$12.1B
| $64.3M | 0.03% |
2,715,698
+1,964,310
| +261% | +$46.6M |
|
|
MIAX
615
Miami International Holdings
MIAX
$4.36B
| $64.3M | 0.03% |
1,448,293
+1,193,011
| +467% | +$53.2M |
|
|
RAL
616
Ralliant Corp
RAL
$7.9B
| $64.2M | 0.03% |
1,260,098
+66,101
| +6% | +$3.1M |
|
617
SGHC Ltd
SGHC
$6.65B
| $64.1M | 0.03% |
5,368,017
+1,959
| +0% | +$23.6K |
|
618
The Greenbrier Companies
GBX
$1.42B
| $64M | 0.03% |
1,368,314
+43,360
| +3% | +$1.94M |
|
619
Regency Centers
REG
$14.1B
| $63.6M | 0.03% |
921,338
-36,250
| -4% | -$2.54M |
|
620
MKS Inc
MKSI
$20.7B
| $63.5M | 0.03% |
397,564
+395,429
| +18,521% | +$58.7M |
|
621
Old Dominion Freight Line
ODFL
$44.7B
| $63.5M | 0.03% |
405,114
+29,762
| +8% | +$4.27M |
|
622
The Ensign Group
ENSG
$10.6B
| $63.4M | 0.03% |
364,186
-180,944
| -33% | -$32.5M |
|
623
Digital Realty Trust
DLR
$73.1B
| $63.2M | 0.03% |
408,277
-144,730
| -26% | -$23.8M |
|
624
Wintrust Financial
WTFC
$11B
| $63M | 0.03% |
450,835
-85,973
| -16% | -$11.4M |
|
625
Sprouts Farmers Market
SFM
$7.71B
| $63M | 0.03% |
790,899
-140,432
| -15% | -$12.6M |
|
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.