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 | |
|---|---|---|---|---|---|---|
|
CBIO
2626
Crescent Biopharma
CBIO
$520M
| $410K | ﹤0.01% |
+22,805
| New | +$445K |
|
|
KGEI
2627
Kolibri Global Energy
KGEI
$228M
| $409K | ﹤0.01% |
+82,458
| New | +$440K |
|
|
EFSI
2628
Eagle Financial Services Inc
EFSI
$247M
| $409K | ﹤0.01% |
+9,859
| New | +$386K |
|
|
NNE
2629
Nano Nuclear Energy
NNE
$912M
| $407K | ﹤0.01% |
+19,275
| New | +$475K |
|
2630
Western New England Bancorp
WNEB
$280M
| $407K | ﹤0.01% |
28,447
+2,963
| +12% | +$40.5K |
|
2631
Varonis Systems
VRNS
$5.31B
| $406K | ﹤0.01% |
+9,680
| New | +$284K |
|
|
SEG
2632
Seaport Entertainment Group
SEG
$300M
| $404K | ﹤0.01% |
15,180
+4,536
| +43% | +$107K |
|
2633
Kratos Defense & Security Solutions
KTOS
$8.56B
| $401K | ﹤0.01% |
8,034
-7,935
| -50% | -$480K |
|
2634
Adaptive Biotechnologies
ADPT
$4.7B
| $399K | ﹤0.01% |
+18,608
| New | +$285K |
|
2635
Liberty Latin America Class A
LILA
$1.66B
| $398K | ﹤0.01% |
50,778
-23,289
| -31% | -$130K |
|
2636
Intapp
INTA
$2.76B
| $397K | ﹤0.01% |
15,762
+1,564
| +11% | +$35.6K |
|
2637
Concrete Pumping Holdings
BBCP
$492M
| $397K | ﹤0.01% |
32,948
-10,780
| -25% | -$92.5K |
|
2638
Entegris
ENTG
$23.2B
| $394K | ﹤0.01% |
+2,193
| New | +$316K |
|
2639
Inogen
INGN
$142M
| $392K | ﹤0.01% |
60,835
-430
| -0.7% | -$2.85K |
|
2640
Lantronix
LTRX
$329M
| $392K | ﹤0.01% |
66,668
-342
| -0.5% | -$2.19K |
|
|
NB
2641
NioCorp Developments
NB
$515M
| $392K | ﹤0.01% |
81,322
+64,391
| +380% | +$352K |
|
2642
Asure Software
ASUR
$228M
| $390K | ﹤0.01% |
49,171
-815
| -2% | -$7.1K |
|
2643
Tilly's
TLYS
$131M
| $390K | ﹤0.01% |
+92,910
| New | +$420K |
|
2644
TAL Education Group
TAL
$6.66B
| $388K | ﹤0.01% |
40,534
+12,637
| +45% | +$133K |
|
2645
James Hardie Industries
JHX
$15.2B
| $379K | ﹤0.01% |
14,495
+32
| +0.2% | +$703 |
|
|
HUT
2646
Hut 8
HUT
$11.9B
| $379K | ﹤0.01% |
+3,281
| New | +$318K |
|
2647
Delcath Systems
DCTH
$541M
| $378K | ﹤0.01% |
30,054
+17,896
| +147% | +$198K |
|
2648
Symbotic
SYM
$5.65B
| $378K | ﹤0.01% |
8,410
+884
| +12% | +$45.1K |
|
2649
AppFolio
APPF
$7.23B
| $376K | ﹤0.01% |
2,347
-25
| -1% | -$3.99K |
|
2650
Protara Therapeutics
TARA
$194M
| $376K | ﹤0.01% |
98,487
+5,518
| +6% | +$26.2K |
|
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.