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 | |
|---|---|---|---|---|---|---|
26
Lam Research
LRCX
$390B
| $701M | 0.36% |
3,282,745
+737,546
| +29% | +$165M |
|
27
Amphenol
APH
$209B
| $671M | 0.35% |
5,307,856
-525,319
| -9% | -$73.9M |
|
28
Merck
MRK
$318B
| $667M | 0.34% |
5,547,858
+179,248
| +3% | +$20.7M |
|
29
Palantir
PLTR
$413B
| $626M | 0.32% |
4,280,120
+757,034
| +21% | +$116M |
|
30
Alnylam Pharmaceuticals
ALNY
$29.3B
| $596M | 0.31% |
1,802,363
+317,202
| +21% | +$108M |
|
31
Norfolk Southern
NSC
$75.1B
| $582M | 0.3% |
2,028,936
+7
| +0% | +$2.08K |
|
32
TJX Companies
TJX
$178B
| $580M | 0.3% |
3,632,947
+284,436
| +8% | +$44.3M |
|
33
Verizon
VZ
$196B
| $555M | 0.29% |
11,053,143
-2,006,192
| -15% | -$93M |
|
34
Gilead Sciences
GILD
$165B
| $555M | 0.29% |
3,978,823
-315,061
| -7% | -$44.1M |
|
35
Micron Technology
MU
$991B
| $554M | 0.29% |
1,639,439
+149,477
| +10% | +$58.6M |
|
36
Becton Dickinson
BDX
$48.2B
| $536M | 0.28% |
3,405,917
+276,266
| +9% | +$50.7M |
|
37
GE Vernova
GEV
$264B
| $508M | 0.26% |
581,605
+34,353
| +6% | +$26.8M |
|
38
Medtronic
MDT
$112B
| $477M | 0.25% |
5,504,355
+650,147
| +13% | +$62.3M |
|
39
Oracle
ORCL
$423B
| $477M | 0.25% |
3,239,249
-1,036,109
| -24% | -$168M |
|
40
ASML
ASML
$669B
| $476M | 0.24% |
360,140
+89,986
| +33% | +$123M |
|
41
Williams Companies
WMB
$86.1B
| $470M | 0.24% |
6,456,552
-378,881
| -6% | -$26.2M |
|
42
Caterpillar
CAT
$387B
| $464M | 0.24% |
655,375
+16,683
| +3% | +$11.6M |
|
43
Avantis US Equity ETF
AVUS
$14.4B
| $461M | 0.24% |
4,143,011
+332,627
| +9% | +$38.1M |
|
44
Datadog
DDOG
$84B
| $449M | 0.23% |
3,804,623
+155,763
| +4% | +$19.2M |
|
45
Baker Hughes
BKR
$61.1B
| $444M | 0.23% |
7,274,970
-1,152,196
| -14% | -$66.6M |
|
46
Packaging Corp of America
PKG
$22.8B
| $439M | 0.23% |
2,066,537
-89,937
| -4% | -$20.1M |
|
47
Chevron
CVX
$366B
| $436M | 0.22% |
2,109,310
-160,428
| -7% | -$29.3M |
|
48
Regeneron Pharmaceuticals
REGN
$80.8B
| $434M | 0.22% |
562,097
+10,610
| +2% | +$8.12M |
|
49
Walmart Inc
WMT
$890B
| $431M | 0.22% |
3,468,512
-184,553
| -5% | -$22.7M |
|
50
Duke Energy
DUK
$97.3B
| $431M | 0.22% |
3,291,616
+174,006
| +6% | +$21.8M |
|
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.