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 | |
|---|---|---|---|---|---|---|
2726
CS Disco
LAW
$279M
| $171K | ﹤0.01% |
44,699
| – | – |
|
2727
Algoma Steel
ASTL
$431M
| $169K | ﹤0.01% |
41,076
-28,096
| -41% | -$122K |
|
2728
Drilling Tools International
DTI
$80.1M
| $169K | ﹤0.01% |
+39,028
| New | +$141K |
|
|
KEEL
2729
Keel Infrastructure Corp
KEEL
$2.34B
| $168K | ﹤0.01% |
85,721
-29,846
| -26% | -$70.1K |
|
2730
Arq
ARQ
$89.3M
| $167K | ﹤0.01% |
65,117
-19,239
| -23% | -$61.6K |
|
2731
Asana
ASAN
$2.13B
| $165K | ﹤0.01% |
25,733
-25
| -0.1% | -$220 |
|
2732
Greenfire Resources
GFR
$771M
| $162K | ﹤0.01% |
25,571
+14,800
| +137% | +$85.1K |
|
2733
Duluth Holdings
DLTH
$159M
| $160K | ﹤0.01% |
50,536
-31,437
| -38% | -$75.7K |
|
2734
Xerox
XRX
$425M
| $156K | ﹤0.01% |
121,013
-10,910
| -8% | -$21.6K |
|
2735
Star Group
SGU
$423M
| $156K | ﹤0.01% |
12,697
| – | – |
|
2736
Amplitude
AMPL
$1.41B
| $156K | ﹤0.01% |
22,808
| – | – |
|
2737
RxSight
RXST
$260M
| $149K | ﹤0.01% |
+24,220
| New | +$201K |
|
2738
Perspective Therapeutics
CATX
$342M
| $149K | ﹤0.01% |
35,722
+23,155
| +184% | +$97.8K |
|
2739
Virgin Galactic
SPCE
$398M
| $146K | ﹤0.01% |
59,878
+8,298
| +16% | +$22.5K |
|
2740
SAB Biotherapeutics
SABS
$355M
| $143K | ﹤0.01% |
+37,455
| New | +$149K |
|
2741
Health Catalyst
HCAT
$128M
| $143K | ﹤0.01% |
112,810
-19,327
| -15% | -$36.4K |
|
2742
Corbus Pharmaceuticals
CRBP
$190M
| $142K | ﹤0.01% |
15,139
+1,728
| +13% | +$14.5K |
|
2743
RE/MAX Holdings
RMAX
$242M
| $141K | ﹤0.01% |
24,519
-216
| -0.9% | -$1.5K |
|
2744
Gaotu Techedu
GOTU
$436M
| $138K | ﹤0.01% |
70,212
+1,020
| +1% | +$2.23K |
|
|
TSSI
2745
TSS Inc
TSSI
$316M
| $137K | ﹤0.01% |
10,554
-14,686
| -58% | -$148K |
|
2746
Peloton Interactive
PTON
$2.49B
| $137K | ﹤0.01% |
31,933
+14,344
| +82% | +$69.9K |
|
2747
UNIFI
UFI
$134M
| $135K | ﹤0.01% |
37,795
-16,818
| -31% | -$64.8K |
|
2748
Context Therapeutics
CNTX
$44.5M
| $133K | ﹤0.01% |
+50,912
| New | +$119K |
|
2749
Century Therapeutics
IPSC
$361M
| $133K | ﹤0.01% |
+58,742
| New | +$124K |
|
2750
EyePoint Inc
EYPT
$1.2B
| $131K | ﹤0.01% |
10,185
-2,611
| -20% | -$39K |
|
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.