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 | |
|---|---|---|---|---|---|---|
|
SEG
2676
Seaport Entertainment Group
SEG
$362M
| $229K | ﹤0.01% |
10,644
-52
| -0.5% | -$1.09K |
|
2677
Campbell Soup
CPB
$6.87B
| $227K | ﹤0.01% |
10,205
+1,133
| +12% | +$29.1K |
|
2678
ODDITY Tech
ODD
$651M
| $227K | ﹤0.01% |
16,940
-2,822
| -14% | -$70.7K |
|
2679
Unity
U
$18.9B
| $226K | ﹤0.01% |
+10,303
| New | +$286K |
|
2680
Trimble
TRMB
$13.9B
| $226K | ﹤0.01% |
3,460
-717
| -17% | -$49.8K |
|
2681
C4 Therapeutics
CCCC
$412M
| $225K | ﹤0.01% |
85,444
+17,199
| +25% | +$40.5K |
|
2682
enGene Therapeutics
ENGN
$121M
| $224K | ﹤0.01% |
32,861
+8,881
| +37% | +$79.1K |
|
2683
Western Midstream Partners
WES
$19.3B
| $219K | ﹤0.01% |
5,327
-50
| -0.9% | -$2.07K |
|
2684
PagerDuty
PD
$902M
| $219K | ﹤0.01% |
35,263
+17,886
| +103% | +$155K |
|
2685
The ONE Group
STKS
$53M
| $216K | ﹤0.01% |
121,537
-19,864
| -14% | -$40.7K |
|
|
BLDP
2686
Ballard Power Systems
BLDP
$790M
| $215K | ﹤0.01% |
89,422
+20,591
| +30% | +$49.1K |
|
2687
Sonida Senior Living
SNDA
$1.91B
| $214K | ﹤0.01% |
+6,626
| New | +$222K |
|
2688
Caribou Biosciences
CRBU
$164M
| $214K | ﹤0.01% |
112,453
| – | – |
|
|
BBUC
2689
Brookfield Business Corp Class A Subordinate Voting Shares
BBUC
$6.04B
| $211K | ﹤0.01% |
6,700
+1
| +0% | +$34 |
|
|
CWAN
2690
DELISTED
Clearwater Analytics
CWAN
| $211K | ﹤0.01% |
+8,936
| New | +$211K |
|
2691
Hyliion Holdings
HYLN
$690M
| $211K | ﹤0.01% |
119,721
+58,239
| +95% | +$117K |
|
2692
Comstock
LODE
$245M
| $210K | ﹤0.01% |
69,016
+23,907
| +53% | +$78.2K |
|
2693
Enphase Energy
ENPH
$5.53B
| $210K | ﹤0.01% |
+5,558
| New | +$231K |
|
2694
Weyco Group
WEYS
$440M
| $209K | ﹤0.01% |
+6,520
| New | +$207K |
|
|
CBLL
2695
CeriBell Inc
CBLL
$714M
| $208K | ﹤0.01% |
+11,371
| New | +$229K |
|
|
ABX
2696
Abacus Global Management
ABX
$913M
| $208K | ﹤0.01% |
+26,394
| New | +$229K |
|
2697
1stdibs.com
DIBS
$171M
| $208K | ﹤0.01% |
37,796
+17,562
| +87% | +$97.3K |
|
2698
Rocket Pharmaceuticals
RCKT
$394M
| $206K | ﹤0.01% |
+57,562
| New | +$229K |
|
2699
America's Car Mart
CRMT
$26.9M
| $204K | ﹤0.01% |
16,015
-144
| -0.9% | -$3.07K |
|
2700
Magnachip Semiconductor
MX
$145M
| $203K | ﹤0.01% |
72,643
-200
| -0.3% | -$570 |
|
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.