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 | |
|---|---|---|---|---|---|---|
2601
First Western Financial
MYFW
$306M
| $346K | ﹤0.01% |
14,078
| – | – |
|
2602
908 Devices
MASS
$364M
| $342K | ﹤0.01% |
55,894
| – | – |
|
2603
SEACOR Marine Holdings
SMHI
$258M
| $342K | ﹤0.01% |
47,725
-307
| -0.6% | -$2.16K |
|
|
TIGR
2604
UP Fintech Holding
TIGR
$861M
| $341K | ﹤0.01% |
54,159
+42,707
| +373% | +$348K |
|
2605
PTC Therapeutics
PTCT
$6.12B
| $341K | ﹤0.01% |
5,003
+414
| +9% | +$29.3K |
|
|
CBL
2606
CBL Properties
CBL
$1.75B
| $339K | ﹤0.01% |
8,834
| – | – |
|
2607
CG Oncology
CGON
$6.66B
| $332K | ﹤0.01% |
4,907
-119,637
| -96% | -$6.78M |
|
|
TBCH
2608
Turtle Beach Corp
TBCH
$277M
| $332K | ﹤0.01% |
32,734
+5,424
| +20% | +$67.4K |
|
2609
Western New England Bancorp
WNEB
$275M
| $330K | ﹤0.01% |
25,484
+3,423
| +16% | +$44.8K |
|
2610
Forte Biosciences
FBRX
$1.57B
| $329K | ﹤0.01% |
12,699
+4,614
| +57% | +$133K |
|
|
NAGE
2611
Niagen Bioscience
NAGE
$247M
| $329K | ﹤0.01% |
74,490
-66,178
| -47% | -$357K |
|
2612
Gray Television
GTN
$552M
| $327K | ﹤0.01% |
75,453
-128,934
| -63% | -$605K |
|
2613
Hagerty
HGTY
$1.39B
| $326K | ﹤0.01% |
+30,914
| New | +$361K |
|
2614
Arcosa
ACA
$7.11B
| $325K | ﹤0.01% |
+3,059
| New | +$348K |
|
|
GBFH
2615
GBank Financial Holdings
GBFH
$302M
| $324K | ﹤0.01% |
12,111
| – | – |
|
2616
Aura Biosciences
AURA
$826M
| $323K | ﹤0.01% |
48,323
+7,579
| +19% | +$43.5K |
|
2617
KRONOS Worldwide
KRO
$989M
| $322K | ﹤0.01% |
49,066
-445
| -0.9% | -$2.52K |
|
2618
Lyell Immunopharma
LYEL
$360M
| $320K | ﹤0.01% |
+15,971
| New | +$373K |
|
2619
Alto Neuroscience
ANRO
$1.11B
| $319K | ﹤0.01% |
14,186
+3,826
| +37% | +$70.9K |
|
2620
TAL Education Group
TAL
$6.87B
| $317K | ﹤0.01% |
27,897
+16
| +0.1% | +$180 |
|
2621
EverCommerce
EVCM
$1.93B
| $317K | ﹤0.01% |
27,731
-1,877
| -6% | -$21.3K |
|
2622
Sagimet Biosciences
SGMT
$559M
| $315K | ﹤0.01% |
60,369
-1,014
| -2% | -$5.65K |
|
2623
iShares MSCI India ETF
INDA
$6.63B
| $315K | ﹤0.01% |
6,733
-2,851
| -30% | -$146K |
|
2624
Amtech Systems
ASYS
$272M
| $312K | ﹤0.01% |
26,736
+6,070
| +29% | +$81.8K |
|
2625
Concrete Pumping Holdings
BBCP
$491M
| $312K | ﹤0.01% |
43,728
-32,372
| -43% | -$215K |
|
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.