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 | |
|---|---|---|---|---|---|---|
2651
Bentley Systems
BSY
$9.5B
| $376K | ﹤0.01% |
12,586
-806
| -6% | -$26.2K |
|
2652
Grindr
GRND
$2.74B
| $374K | ﹤0.01% |
+26,005
| New | +$337K |
|
2653
Etsy
ETSY
$6.28B
| $373K | ﹤0.01% |
4,952
-21,690
| -81% | -$1.4M |
|
2654
InnovAge Holding
INNV
$1.23B
| $373K | ﹤0.01% |
31,439
+16,330
| +108% | +$134K |
|
|
GBFH
2655
GBank Financial Holdings
GBFH
$278M
| $372K | ﹤0.01% |
12,270
+159
| +1% | +$4.64K |
|
|
TIGR
2656
UP Fintech Holding
TIGR
$834M
| $371K | ﹤0.01% |
84,355
+30,196
| +56% | +$176K |
|
2657
Twin Disc
TWIN
$380M
| $369K | ﹤0.01% |
15,889
-3,143
| -17% | -$57.6K |
|
|
SERV
2658
Serve Robotics
SERV
$386M
| $366K | ﹤0.01% |
55,575
+11,997
| +28% | +$100K |
|
2659
Assembly Biosciences
ASMB
$482M
| $364K | ﹤0.01% |
13,239
+4,085
| +45% | +$111K |
|
2660
SEACOR Marine Holdings
SMHI
$237M
| $363K | ﹤0.01% |
47,503
-222
| -0.5% | -$1.65K |
|
|
WLTH
2661
Wealthfront Corp
WLTH
$1.59B
| $363K | ﹤0.01% |
+40,602
| New | +$423K |
|
2662
Canadian Solar
CSIQ
$733M
| $359K | ﹤0.01% |
22,381
| – | – |
|
2663
RF Industries
RFIL
$89.8M
| $358K | ﹤0.01% |
16,870
+5,459
| +48% | +$88.3K |
|
2664
Thryv Holdings
THRY
$79.5M
| $358K | ﹤0.01% |
90,781
-150
| -0.2% | -$533 |
|
2665
Hooker Furnishings Corp
HOFT
$140M
| $356K | ﹤0.01% |
19,965
| – | – |
|
2666
BlackLine
BL
$1.63B
| $355K | ﹤0.01% |
12,661
-73,080
| -85% | -$2.18M |
|
2667
Drilling Tools International
DTI
$86.4M
| $352K | ﹤0.01% |
182,389
+143,361
| +367% | +$427K |
|
2668
Organogenesis Holdings
ORGO
$181M
| $352K | ﹤0.01% |
144,761
-23,611
| -14% | -$57.7K |
|
2669
X4 Pharmaceuticals
XFOR
$298M
| $349K | ﹤0.01% |
+74,795
| New | +$307K |
|
2670
Magnachip Semiconductor
MX
$120M
| $349K | ﹤0.01% |
73,701
+1,058
| +1% | +$5.13K |
|
2671
Rocket Pharmaceuticals
RCKT
$285M
| $348K | ﹤0.01% |
101,614
+44,052
| +77% | +$146K |
|
|
TRAX
2672
First Tracks Biotherapeutics
TRAX
$1.23B
| $347K | ﹤0.01% |
+17,253
| New | +$323K |
|
2673
Lyell Immunopharma
LYEL
$241M
| $345K | ﹤0.01% |
24,540
+8,569
| +54% | +$155K |
|
2674
Affiliated Managers Group
AMG
$9.66B
| $343K | ﹤0.01% |
1,015
-5,591
| -85% | -$1.73M |
|
2675
Eastern Company
EML
$145M
| $342K | ﹤0.01% |
12,275
-9,583
| -44% | -$210K |
|
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.