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 | |
|---|---|---|---|---|---|---|
1676
Santander
BSBR
$43.1B
| $6.11M | ﹤0.01% |
1,030,687
+82,812
| +9% | +$527K |
|
1677
Avantis Short-Term Fixed Income ETF
AVSF
$653M
| $6.09M | ﹤0.01% |
130,082
+10,967
| +9% | +$516K |
|
1678
The Mosaic Company
MOS
$7.46B
| $6.08M | ﹤0.01% |
238,355
+972
| +0.4% | +$26.7K |
|
1679
TTM Technologies
TTMI
$13.7B
| $6.06M | ﹤0.01% |
62,172
-146,209
| -70% | -$13.9M |
|
1680
Capital Bancorp
CBNK
$608M
| $6.04M | ﹤0.01% |
203,196
+32,371
| +19% | +$969K |
|
1681
Prestige Consumer Healthcare
PBH
$2.51B
| $6.04M | ﹤0.01% |
101,903
+69,764
| +217% | +$4.53M |
|
1682
Qualys
QLYS
$6.43B
| $6.03M | ﹤0.01% |
68,677
-40,086
| -37% | -$4.44M |
|
1683
AES
AES
$10.5B
| $6.03M | ﹤0.01% |
427,916
-495,937
| -54% | -$7.38M |
|
1684
Live Oak Bancshares
LOB
$1.95B
| $6.01M | ﹤0.01% |
181,787
+89,139
| +96% | +$3.28M |
|
1685
iShares Core S&P Mid-Cap ETF
IJH
$127B
| $6.01M | ﹤0.01% |
89,000
-17,700
| -17% | -$1.23M |
|
1686
Simpson Manufacturing
SSD
$8B
| $6.01M | ﹤0.01% |
35,020
+5,009
| +17% | +$923K |
|
1687
Sunrun
RUN
$2.38B
| $6M | ﹤0.01% |
442,195
+63,305
| +17% | +$1.05M |
|
1688
NETSCOUT
NTCT
$2.81B
| $5.98M | ﹤0.01% |
188,206
+2,866
| +2% | +$83.2K |
|
1689
Invitation Homes
INVH
$17.8B
| $5.98M | ﹤0.01% |
240,759
+10,773
| +5% | +$282K |
|
1690
Rogers Communications
RCI
$18.7B
| $5.95M | ﹤0.01% |
154,807
-20,808
| -12% | -$793K |
|
1691
Weyerhaeuser
WY
$18.2B
| $5.95M | ﹤0.01% |
243,616
+79,924
| +49% | +$2.01M |
|
1692
Beazer Homes USA
BZH
$871M
| $5.95M | ﹤0.01% |
309,317
+164,549
| +114% | +$3.8M |
|
1693
Centuri Holdings
CTRI
$2.4B
| $5.93M | ﹤0.01% |
203,157
+66,388
| +49% | +$1.93M |
|
1694
GoDaddy
GDDY
$11.6B
| $5.93M | ﹤0.01% |
71,732
-4,399
| -6% | -$418K |
|
1695
ACM Research
ACMR
$5.53B
| $5.92M | ﹤0.01% |
150,549
-1,437
| -0.9% | -$76.3K |
|
|
TXNM
1696
TXNM Energy Inc
TXNM
$5.91B
| $5.91M | ﹤0.01% |
+101,074
| New | +$5.96M |
|
1697
Merit Medical Systems
MMSI
$5.36B
| $5.9M | ﹤0.01% |
85,661
+75,809
| +769% | +$5.92M |
|
1698
Carlyle Group
CG
$17.2B
| $5.88M | ﹤0.01% |
121,572
-25,385
| -17% | -$1.4M |
|
1699
GigaCloud Technology
GCT
$1.84B
| $5.88M | ﹤0.01% |
129,465
-139,467
| -52% | -$5.67M |
|
1700
Ubiquiti
UI
$34.5B
| $5.87M | ﹤0.01% |
7,424
+4,264
| +135% | +$2.9M |
|
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.