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 | |
|---|---|---|---|---|---|---|
2501
Arcturus Therapeutics
ARCT
$211M
| $510K | ﹤0.01% |
66,012
-473
| -0.7% | -$3.45K |
|
2502
Portillo's
PTLO
$321M
| $509K | ﹤0.01% |
96,292
+2,960
| +3% | +$16.1K |
|
|
ELVR
2503
Elevra Lithium Ltd
ELVR
$1.17B
| $508K | ﹤0.01% |
8,632
+1
| +0% | +$55 |
|
2504
FIVE9
FIVN
$2.54B
| $508K | ﹤0.01% |
33,464
+10,161
| +44% | +$177K |
|
|
BIOA
2505
BioAge Labs
BIOA
$538M
| $506K | ﹤0.01% |
+28,903
| New | +$557K |
|
2506
Lumen
LUMN
$6.44B
| $502K | ﹤0.01% |
72,243
-80,465
| -53% | -$609K |
|
2507
CB Financial Services
CBFV
$193M
| $498K | ﹤0.01% |
14,571
-1,816
| -11% | -$63.6K |
|
2508
nLIGHT
LASR
$3.17B
| $495K | ﹤0.01% |
8,682
+1,983
| +30% | +$107K |
|
|
LAC
2509
Lithium Americas
LAC
$1.17B
| $494K | ﹤0.01% |
124,323
+2,670
| +2% | +$13.1K |
|
2510
Allegro MicroSystems
ALGM
$8.16B
| $492K | ﹤0.01% |
15,598
+5,324
| +52% | +$184K |
|
2511
Virginia National Bankshares
VABK
$260M
| $486K | ﹤0.01% |
12,724
| – | – |
|
2512
Protara Therapeutics
TARA
$232M
| $484K | ﹤0.01% |
92,969
+28,811
| +45% | +$171K |
|
2513
Petco
WOOF
$794M
| $482K | ﹤0.01% |
173,537
-2,055
| -1% | -$5.69K |
|
2514
Corsair Gaming
CRSR
$1.55B
| $482K | ﹤0.01% |
86,859
| – | – |
|
2515
SPS Commerce
SPSC
$2.64B
| $481K | ﹤0.01% |
8,644
+4,269
| +98% | +$308K |
|
|
CWEN.A
2516
DELISTED
Clearway Energy Class A
CWEN.A
| $480K | ﹤0.01% |
12,261
+1,763
| +17% | +$62.8K |
|
2517
Spok Holdings
SPOK
$241M
| $473K | ﹤0.01% |
43,368
-315
| -0.7% | -$4.01K |
|
|
PRMB
2518
Primo Brands
PRMB
$8.54B
| $473K | ﹤0.01% |
25,103
-4,908
| -16% | -$94.8K |
|
|
ARDT
2519
Ardent Health
ARDT
$1.66B
| $472K | ﹤0.01% |
55,192
+12,319
| +29% | +$111K |
|
2520
Crawford & Co Class B
CRD.B
$604M
| $472K | ﹤0.01% |
46,508
+6,877
| +17% | +$70.4K |
|
|
API
2521
Agora
API
$377M
| $471K | ﹤0.01% |
133,168
+360
| +0.3% | +$1.53K |
|
2522
Bentley Systems
BSY
$10.6B
| $470K | ﹤0.01% |
13,392
+3
| +0% | +$110 |
|
2523
TaskUs
TASK
$669M
| $469K | ﹤0.01% |
69,952
+21,805
| +45% | +$231K |
|
|
JBIO
2524
Jade Biosciences
JBIO
$1.34B
| $469K | ﹤0.01% |
+33,369
| New | +$483K |
|
|
CTNM
2525
Contineum Therapeutics
CTNM
$566M
| $466K | ﹤0.01% |
35,681
+16,159
| +83% | +$217K |
|
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.