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 | |
|---|---|---|---|---|---|---|
2776
HF Foods Group
HFFG
$83.4M
| $94.3K | ﹤0.01% |
50,955
| – | – |
|
|
FLNA
2777
Filana Therapeutics
FLNA
$48.1M
| $90.2K | ﹤0.01% |
53,367
| – | – |
|
2778
Ultralife
ULBI
$106M
| $89.6K | ﹤0.01% |
13,747
| – | – |
|
2779
Replimune Group
REPL
$1.01B
| $89.1K | ﹤0.01% |
11,650
-136,436
| -92% | -$1.04M |
|
2780
QuantumScape Corp
QS
$3.74B
| $88.3K | ﹤0.01% |
13,843
-45,899
| -77% | -$381K |
|
2781
MacroGenics
MGNX
$257M
| $88.3K | ﹤0.01% |
+30,556
| New | +$65.2K |
|
2782
Certara
CERT
$1.25B
| $85.1K | ﹤0.01% |
+14,934
| New | +$114K |
|
2783
Ranpak Holdings
PACK
$473M
| $85.1K | ﹤0.01% |
23,831
+7,817
| +49% | +$38.5K |
|
2784
Sensus Healthcare
SRTS
$50.5M
| $84.7K | ﹤0.01% |
21,272
| – | – |
|
2785
SITE Centers
SITC
$165M
| $81.9K | ﹤0.01% |
15,161
+728
| +5% | +$4.46K |
|
|
ELME
2786
Elme Communities
ELME
$144M
| $77.6K | ﹤0.01% |
38,629
-2,756
| -7% | -$9.08K |
|
2787
Neumora Therapeutics
NMRA
$302M
| $77.6K | ﹤0.01% |
39,810
+973
| +3% | +$2.52K |
|
|
NB
2788
NioCorp Developments
NB
$780M
| $75.5K | ﹤0.01% |
+16,931
| New | +$97.1K |
|
2789
PepGen
PEPG
$197M
| $75.4K | ﹤0.01% |
42,601
+26,851
| +170% | +$151K |
|
2790
Coherus Oncology
CHRS
$196M
| $73.1K | ﹤0.01% |
+43,242
| New | +$76.8K |
|
|
RDNW
2791
RideNow Group
RDNW
$262M
| $72.8K | ﹤0.01% |
10,317
-14,065
| -58% | -$85.2K |
|
|
RERE
2792
ATRenew
RERE
$1.01B
| $71.2K | ﹤0.01% |
15,186
+2,798
| +23% | +$15.8K |
|
|
UDMY
2793
DELISTED
Udemy
UDMY
| $70.1K | ﹤0.01% |
+15,163
| New | +$74.8K |
|
2794
Citizens
CIA
$192M
| $69.1K | ﹤0.01% |
13,730
| – | – |
|
2795
Annexon
ANNX
$886M
| $69K | ﹤0.01% |
12,463
-238,695
| -95% | -$1.34M |
|
|
WRN
2796
Western Copper and Gold
WRN
$544M
| $68.8K | ﹤0.01% |
27,119
+5,198
| +24% | +$16.2K |
|
2797
Forrester Research
FORR
$224M
| $66.3K | ﹤0.01% |
11,718
| – | – |
|
|
FRMI
2798
Fermi Inc
FRMI
$3.94B
| $64.5K | ﹤0.01% |
+11,040
| New | +$96.6K |
|
2799
SES AI
SES
$208M
| $63.5K | ﹤0.01% |
66,027
-24,808
| -27% | -$42.2K |
|
2800
Abeona Therapeutics
ABEO
$413M
| $57K | ﹤0.01% |
+12,718
| New | +$63.6K |
|
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.