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 | |
|---|---|---|---|---|---|---|
1
NVIDIA
NVDA
$5.43T
| $12.1B | 5.36% |
60,626,286
-416,811
| -0.7% | -$85.7M |
|
2
Alphabet (Google) Class A
GOOGL
$4.21T
| $6.02B | 2.66% |
16,841,559
-649,390
| -4% | -$234M |
|
3
Amazon
AMZN
$2.69T
| $5.83B | 2.58% |
24,455,378
+186,758
| +0.8% | +$46.9M |
|
|
4
Apple
AAPL
$4.98T
| $5.53B | 2.44% |
19,112,405
-6,098,678
| -24% | -$1.74B |
|
|
5
Microsoft
MSFT
$3.83T
| $5.41B | 2.39% |
14,512,326
-1,639,313
| -10% | -$663M |
|
|
6
Alphabet (Google) Class C
GOOG
$4.17T
| $3.2B | 1.41% |
9,047,039
-333,461
| -4% | -$119M |
|
7
Meta Platforms (Facebook)
META
$1.91T
| $3B | 1.33% |
5,332,613
+340,137
| +7% | +$208M |
|
8
TSMC
TSM
$2.34T
| $2.97B | 1.31% |
6,223,473
-125,513
| -2% | -$50.9M |
|
|
9
Broadcom
AVGO
$1.68T
| $2.96B | 1.31% |
7,847,715
-1,693,491
| -18% | -$679M |
|
10
Tesla
TSLA
$1.47T
| $2.93B | 1.29% |
6,961,359
+198,667
| +3% | +$79M |
|
|
11
Eli Lilly
LLY
$1.05T
| $2.82B | 1.25% |
2,354,837
+508,915
| +28% | +$520M |
|
12
Micron Technology
MU
$1.22T
| $2.45B | 1.08% |
2,121,016
+481,577
| +29% | +$361M |
|
13
Mastercard
MA
$497B
| $2.42B | 1.07% |
4,713,938
-647,756
| -12% | -$323M |
|
14
Applied Materials
AMAT
$385B
| $2.17B | 0.96% |
3,004,203
-539,641
| -15% | -$249M |
|
15
Netflix
NFLX
$296B
| $1.6B | 0.71% |
22,424,271
+3,022,763
| +16% | +$266M |
|
16
Lam Research
LRCX
$394B
| $1.49B | 0.66% |
3,447,645
+164,900
| +5% | +$50.1M |
|
|
17
Costco
COST
$409B
| $1.35B | 0.6% |
1,448,226
-358,163
| -20% | -$357M |
|
18
JPMorgan Chase
JPM
$912B
| $1.31B | 0.58% |
4,008,406
+276,886
| +7% | +$86M |
|
19
Amphenol
APH
$207B
| $1.21B | 0.54% |
13,754,442
+3,138,730
| +30% | +$226M |
|
|
20
Advanced Micro Devices
AMD
$1.03T
| $1.09B | 0.48% |
1,869,689
+1,555,994
| +496% | +$638M |
|
21
Cloudflare
NET
$124B
| $1.05B | 0.46% |
4,286,156
+658,901
| +18% | +$144M |
|
22
Vertiv
VRT
$97.5B
| $1.05B | 0.46% |
3,129,427
-196,898
| -6% | -$62.4M |
|
23
Datadog
DDOG
$96.3B
| $977M | 0.43% |
3,754,204
-50,419
| -1% | -$9.37M |
|
|
24
Ciena
CIEN
$50.6B
| $908M | 0.4% |
1,851,788
+1,315,946
| +246% | +$671M |
|
25
Howmet Aerospace
HWM
$92.7B
| $883M | 0.39% |
3,285,142
-313,928
| -9% | -$80.6M |
|
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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.