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 |
Ciena
CIEN
|
+$671M |
| 2 |
Advanced Micro Devices
AMD
|
+$638M |
| 3 |
Eli Lilly
LLY
|
+$520M |
| 4 |
Corning
GLW
|
+$389M |
| 5 |
Cadence Design Systems
CDNS
|
+$371M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$1.74B |
| 2 |
Analog Devices
ADI
|
+$697M |
| 3 |
Broadcom
AVGO
|
+$679M |
| 4 |
Microsoft
MSFT
|
+$663M |
| 5 |
Costco
COST
|
+$357M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 27.76% |
| 2 | Financials | 14.09% |
| 3 | Industrials | 11.46% |
| 4 | Consumer Discretionary | 11.11% |
| 5 | Healthcare | 8.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2876
Rapid Micro Biosystems
RPID
$55.7M
| $20.1K | ﹤0.01% |
11,638
-5,284
| -31% | -$11.1K |
|
|
NNDM
2877
Nano Dimension
NNDM
$331M
| $19.2K | ﹤0.01% |
13,227
+2,298
| +21% | +$3.75K |
|
2878
Siebert Financial
SIEB
$90.4M
| $19K | ﹤0.01% |
11,545
-1,543
| -12% | -$2.81K |
|
|
ELME
2879
Elme Communities
ELME
$154M
| $17.7K | ﹤0.01% |
11,956
-26,673
| -69% | -$54.1K |
|
2880
Aclaris Therapeutics
ACRS
$758M
| – | – |
-118,702
| Closed | -$445K |
|
2881
Akebia Therapeutics
AKBA
$248M
| – | – |
-415,988
| Closed | -$578K |
|
|
AL
2882
DELISTED
Air Lease Corp
AL
| – | – |
-2,803,885
| Closed | -$182M |
|
2883
Altimmune
ALT
$595M
| – | – |
-62,909
| Closed | -$194K |
|
2884
Alta Equipment Group
ALTG
$203M
| – | – |
-48,051
| Closed | -$258K |
|
|
AMWD
2885
DELISTED
American Woodmark
AMWD
| – | – |
-32,203
| Closed | -$1.28M |
|
2886
Angi Inc
ANGI
$220M
| – | – |
-55,507
| Closed | -$380K |
|
2887
Annexon
ANNX
$690M
| – | – |
-12,463
| Closed | -$69K |
|
2888
Asana
ASAN
$2.07B
| – | – |
-25,733
| Closed | -$165K |
|
2889
Aura Biosciences
AURA
$622M
| – | – |
-48,323
| Closed | -$323K |
|
2890
Butterfly Network
BFLY
$2.5B
| – | – |
-140,801
| Closed | -$569K |
|
2891
Biohaven
BHVN
$1.96B
| – | – |
-11,368
| Closed | -$96.2K |
|
2892
BlackSky Technology
BKSY
$952M
| – | – |
-33,627
| Closed | -$846K |
|
|
BLFY
2893
DELISTED
Blue Foundry Bancorp
BLFY
| – | – |
-32,559
| Closed | -$431K |
|
2894
BellRing Brands
BRBR
$920M
| – | – |
-212,313
| Closed | -$3.42M |
|
2895
Bit Digital
BTBT
$635M
| – | – |
-506,465
| Closed | -$663K |
|
2896
Century Aluminum
CENX
$3.8B
| – | – |
-232,034
| Closed | -$13.6M |
|
2897
Coherus Oncology
CHRS
$175M
| – | – |
-43,242
| Closed | -$73.1K |
|
2898
Columbus McKinnon
CMCO
$486M
| – | – |
-41,176
| Closed | -$598K |
|
2899
Compass Therapeutics
CMPX
$203M
| – | – |
-78,328
| Closed | -$414K |
|
|
CNTA
2900
DELISTED
Centessa Pharmaceuticals
CNTA
| – | – |
-687,427
| Closed | -$27.3M |
|
Similar funds
American Century Companies's Q2 2026 Portfolio in Review
As of Q2 2026, American Century Companies held 3,021 positions worth $226B, up 16% from $194B the previous quarter. Its ten largest holdings account for 22% of the portfolio.
American Century Companies's Q2 2026 filing shows 193 new, 1,743 increased, 891 reduced and 137 closed positions. Its largest new stake was OceanaGold Corp: 6,764,717 shares worth $170M. The largest sale was Apple, an estimated $1.74B.
By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 25% a quarter earlier, followed by Financials and Industrials.
- American Century Companies's largest Q2 2026 buy was OceanaGold Corp: 6,764,717 shares worth $170M.
- American Century Companies added most to Ciena in Q2 2026, an estimated $671M increase.
- American Century Companies's biggest Q2 2026 reduction was Apple, cutting an estimated $1.74B.
- American Century Companies fully exited Air Lease Corp in Q2 2026, selling an estimated $182M.
- American Century Companies's ten largest holdings make up 22% of its $226B portfolio in Q2 2026.
- American Century Companies opened 193 new positions and closed 137 in Q2 2026.
- American Century Companies's portfolio value rose 16% quarter-over-quarter to $226B.
Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.