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 |
Microsoft
MSFT
|
+$430M |
| 2 |
MRSH
Marsh
MRSH
|
+$342M |
| 3 |
Honeywell
HON
|
+$212M |
| 4 |
Owens Corning
OC
|
+$206M |
| 5 |
Coeur Mining
CDE
|
+$174M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$513M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$440M |
| 3 |
NVIDIA
NVDA
|
+$416M |
| 4 |
Kenvue
KVUE
|
+$306M |
| 5 |
Apple
AAPL
|
+$213M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 25.15% |
| 2 | Financials | 13.37% |
| 3 | Consumer Discretionary | 11.55% |
| 4 | Industrials | 10.99% |
| 5 | Healthcare | 9.31% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
VTYX
2926
DELISTED
Ventyx Biosciences
VTYX
| – | – |
-99,499
| Closed | -$898K |
|
2927
Yext
YEXT
$574M
| – | – |
-258,197
| Closed | -$2.08M |
|
|
ZEUS
2928
DELISTED
Olympic Steel
ZEUS
| – | – |
-411,121
| Closed | -$17.6M |
|
2929
Zillow
ZG
$7.63B
| – | – |
-4,030
| Closed | -$275K |
|
|
LIF
2930
Life360
LIF
$5.12B
| – | – |
-340,527
| Closed | -$21.8M |
|
|
OS
2931
DELISTED
OneStream Inc
OS
| – | – |
-1,271,265
| Closed | -$23.4M |
|
|
ACGR
2932
American Century Large Cap Growth ETF
ACGR
$10.6M
| – | – |
-79,000
| Closed | -$5.22M |
|
|
SION
2933
Sionna Therapeutics
SION
$2.31B
| – | – |
-6,180
| Closed | -$254K |
|
|
DVLT
2934
Datavault AI
DVLT
$263M
| – | – |
-24,809
| Closed | -$15.9K |
|
|
CTEV
2935
Claritev Corp
CTEV
$556M
| – | – |
-16,529
| Closed | -$707K |
|
|
STRZ
2936
Starz Entertainment Corp
STRZ
$440M
| – | – |
-84,472
| Closed | -$988K |
|
|
FLY
2937
Firefly Aerospace
FLY
$4.39B
| – | – |
-335,079
| Closed | -$7.5M |
|
|
NTSK
2938
Netskope Inc
NTSK
$6.01B
| – | – |
-380,416
| Closed | -$6.67M |
|
Similar funds
American Century Companies's Q1 2026 Portfolio in Review
As of Q1 2026, American Century Companies held 2,945 positions worth $194B, down 2.4% from $199B the previous quarter. Its ten largest holdings account for 24% of the portfolio.
American Century Companies's Q1 2026 filing shows 133 new, 1,604 increased, 1,039 reduced and 115 closed positions. Its largest new stake was Sunbelt Rentals Holdings: 2,015,224 shares worth $127M. The largest sale was Amazon, an estimated $513M.
By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 27% a quarter earlier, followed by Financials and Consumer Discretionary.
- American Century Companies's largest Q1 2026 buy was Sunbelt Rentals Holdings: 2,015,224 shares worth $127M.
- American Century Companies added most to Microsoft in Q1 2026, an estimated $430M increase.
- American Century Companies's biggest Q1 2026 reduction was Amazon, cutting an estimated $513M.
- American Century Companies fully exited Icon in Q1 2026, selling an estimated $189M.
- American Century Companies's ten largest holdings make up 24% of its $194B portfolio in Q1 2026.
- American Century Companies opened 133 new positions and closed 115 in Q1 2026.
- American Century Companies's portfolio value fell 2.4% quarter-over-quarter to $194B.
Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.