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 | |
|---|---|---|---|---|---|---|
|
HTBK
1351
DELISTED
Heritage Commerce
HTBK
| $13M | 0.01% |
1,044,866
-14,523
| -1% | -$184K |
|
1352
Peapack-Gladstone Financial
PGC
$800M
| $13M | 0.01% |
368,815
+24,987
| +7% | +$813K |
|
1353
Avista
AVA
$3.2B
| $13M | 0.01% |
323,506
+178,869
| +124% | +$7.22M |
|
1354
Newmark Group
NMRK
$2.52B
| $13M | 0.01% |
864,369
+306,088
| +55% | +$4.83M |
|
1355
First Business Financial Services
FBIZ
$589M
| $13M | 0.01% |
240,137
+23,127
| +11% | +$1.29M |
|
1356
ATN International
ATNI
$494M
| $12.9M | 0.01% |
474,944
+63,785
| +16% | +$1.62M |
|
1357
Duolingo
DUOL
$6.42B
| $12.9M | 0.01% |
130,564
+17,882
| +16% | +$2.21M |
|
1358
Natural Gas Services Group
NGS
$476M
| $12.8M | 0.01% |
339,022
+61,385
| +22% | +$2.24M |
|
1359
Caleres
CAL
$486M
| $12.7M | 0.01% |
1,207,548
-36,407
| -3% | -$434K |
|
1360
Central Garden & Pet Co
CENT
$2.75B
| $12.7M | 0.01% |
345,821
+41,473
| +14% | +$1.48M |
|
1361
Imperial Oil
IMO
$62.3B
| $12.7M | 0.01% |
97,020
-6,294
| -6% | -$706K |
|
1362
ResMed
RMD
$31.9B
| $12.7M | 0.01% |
56,573
-2,186
| -4% | -$545K |
|
1363
Worthington Steel
WS
$1.94B
| $12.7M | 0.01% |
417,661
-68,702
| -14% | -$2.66M |
|
1364
Carter Bankshares
CARE
$703M
| $12.6M | 0.01% |
540,866
+67,079
| +14% | +$1.4M |
|
|
OKLO
1365
Oklo
OKLO
$8.28B
| $12.6M | 0.01% |
+254,218
| New | +$18.3M |
|
|
DHIL
1366
DELISTED
Diamond Hill
DHIL
| $12.6M | 0.01% |
73,185
-109
| -0.1% | -$18.7K |
|
1367
Chewy
CHWY
$9.25B
| $12.6M | 0.01% |
465,781
+236,875
| +103% | +$6.6M |
|
1368
Trip.com Group
TCOM
$29.7B
| $12.6M | 0.01% |
252,547
-46,415
| -16% | -$2.71M |
|
1369
Quanex
NX
$967M
| $12.6M | 0.01% |
698,966
+563,161
| +415% | +$10.6M |
|
1370
Fidelity National Financial
FNF
$12.9B
| $12.5M | 0.01% |
270,312
+60,937
| +29% | +$3.16M |
|
1371
Alarm.com
ALRM
$2.77B
| $12.5M | 0.01% |
288,399
+190,635
| +195% | +$9.1M |
|
1372
Paychex
PAYX
$43.1B
| $12.4M | 0.01% |
135,101
+32,996
| +32% | +$3.26M |
|
1373
Nuvation Bio
NUVB
$2.32B
| $12.4M | 0.01% |
2,897,078
+2,860,262
| +7,769% | +$15.9M |
|
1374
Align Technology
ALGN
$12.5B
| $12.3M | 0.01% |
71,799
-23,053
| -24% | -$4.04M |
|
1375
Woodward
WWD
$21B
| $12.3M | 0.01% |
34,360
+8,146
| +31% | +$2.93M |
|
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.