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 | 11.12% |
| 5 | Healthcare | 8.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2276
Castle Biosciences
CSTL
$960M
| $1.56M | ﹤0.01% |
65,413
-13,694
| -17% | -$305K |
|
2277
Wyndham Hotels & Resorts
WH
$5.49B
| $1.56M | ﹤0.01% |
18,482
+2,795
| +18% | +$232K |
|
2278
Custom Truck One Source
CTOS
$2.46B
| $1.55M | ﹤0.01% |
131,663
+12,932
| +11% | +$122K |
|
2279
Driven Brands
DRVN
$2.05B
| $1.54M | ﹤0.01% |
110,653
+15,412
| +16% | +$203K |
|
2280
Innovative Industrial Properties
IIPR
$1.67B
| $1.54M | ﹤0.01% |
24,827
+2,738
| +12% | +$154K |
|
|
RJET
2281
Republic Airways Holdings
RJET
$962M
| $1.53M | ﹤0.01% |
+72,981
| New | +$1.42M |
|
|
JBTM
2282
JBT Marel
JBTM
$6.15B
| $1.53M | ﹤0.01% |
10,574
-59
| -0.6% | -$7.64K |
|
|
JBIO
2283
Jade Biosciences
JBIO
$1.48B
| $1.53M | ﹤0.01% |
68,980
+35,611
| +107% | +$743K |
|
2284
Taylor Devices
TAYD
$172M
| $1.53M | ﹤0.01% |
26,012
-8,812
| -25% | -$477K |
|
2285
4D Molecular Therapeutics
FDMT
$621M
| $1.52M | ﹤0.01% |
114,000
+12,489
| +12% | +$122K |
|
2286
Anika Therapeutics
ANIK
$295M
| $1.52M | ﹤0.01% |
103,559
-34,025
| -25% | -$504K |
|
2287
Applied Optoelectronics
AAOI
$11.7B
| $1.51M | ﹤0.01% |
10,211
-31,879
| -76% | -$5.18M |
|
2288
DMC Global
BOOM
$155M
| $1.5M | ﹤0.01% |
257,959
+10,553
| +4% | +$68.6K |
|
|
VNET
2289
VNET Group
VNET
$2.11B
| $1.49M | ﹤0.01% |
185,864
-1,212,787
| -87% | -$11M |
|
2290
Recursion Pharmaceuticals
RXRX
$1.76B
| $1.49M | ﹤0.01% |
406,774
+96,340
| +31% | +$321K |
|
2291
Kanzhun
BZ
$7.19B
| $1.49M | ﹤0.01% |
115,701
+411
| +0.4% | +$5.63K |
|
2292
Montauk Renewables
MNTK
$265M
| $1.48M | ﹤0.01% |
950,442
-4,026
| -0.4% | -$5.96K |
|
2293
Willis Lease Finance
WLFC
$1.21B
| $1.48M | ﹤0.01% |
19,410
+3,558
| +22% | +$232K |
|
2294
Travere Therapeutics
TVTX
$5.86B
| $1.47M | ﹤0.01% |
25,899
+2,085
| +9% | +$92.4K |
|
2295
Woodside Energy
WDS
$43.6B
| $1.47M | ﹤0.01% |
75,877
| – | – |
|
2296
Frontier Group Holdings
ULCC
$1.54B
| $1.46M | ﹤0.01% |
184,527
-1,572,286
| -89% | -$8.11M |
|
2297
Clearway Energy Class C
CWEN
$7.06B
| $1.46M | ﹤0.01% |
42,653
+17,925
| +72% | +$694K |
|
2298
ITT
ITT
$19.4B
| $1.46M | ﹤0.01% |
7,371
-41,847
| -85% | -$8.46M |
|
2299
TechTarget
TTGT
$265M
| $1.45M | ﹤0.01% |
403,213
+357,132
| +775% | +$1.64M |
|
2300
Root
ROOT
$748M
| $1.45M | ﹤0.01% |
25,933
+2,167
| +9% | +$116K |
|
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.