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 | |
|---|---|---|---|---|---|---|
2051
Atlas Energy Solutions
AESI
$1.47B
| $2.45M | ﹤0.01% |
187,080
-231,292
| -55% | -$2.7M |
|
2052
Enliven Therapeutics
ELVN
$4.35B
| $2.43M | ﹤0.01% |
62,116
+16,324
| +36% | +$452K |
|
2053
Unitil
UTL
$966M
| $2.42M | ﹤0.01% |
46,354
-470
| -1% | -$24.1K |
|
2054
Cleveland-Cliffs
CLF
$7.13B
| $2.42M | ﹤0.01% |
286,558
-562
| -0.2% | -$6.43K |
|
2055
National Beverage
FIZZ
$2.91B
| $2.42M | ﹤0.01% |
71,914
+49,549
| +222% | +$1.72M |
|
2056
APi Group
APG
$18.3B
| $2.41M | ﹤0.01% |
59,477
+4,485
| +8% | +$190K |
|
2057
Ormat Technologies
ORA
$6.87B
| $2.4M | ﹤0.01% |
21,439
+2,505
| +13% | +$291K |
|
2058
NETGEAR
NTGR
$619M
| $2.38M | ﹤0.01% |
108,889
-342,128
| -76% | -$7.38M |
|
2059
Horizon Bancorp
HBNC
$1.03B
| $2.37M | ﹤0.01% |
143,139
-38,245
| -21% | -$655K |
|
2060
Zurn Elkay Water Solutions
ZWS
$8.47B
| $2.36M | ﹤0.01% |
52,543
-41,354
| -44% | -$1.98M |
|
2061
Westlake Corp
WLK
$10.1B
| $2.34M | ﹤0.01% |
20,020
+1,719
| +9% | +$167K |
|
2062
Ascent Industries
ACNT
$141M
| $2.33M | ﹤0.01% |
175,223
+82,424
| +89% | +$1.28M |
|
2063
Foster
FSTR
$414M
| $2.33M | ﹤0.01% |
83,571
-5,638
| -6% | -$166K |
|
|
EFOR
2064
Everforth Inc
EFOR
$1.33B
| $2.33M | ﹤0.01% |
60,155
+7,905
| +15% | +$352K |
|
2065
Extreme Networks
EXTR
$3.09B
| $2.31M | ﹤0.01% |
153,372
+42,400
| +38% | +$633K |
|
2066
Gibraltar Industries
ROCK
$1.45B
| $2.31M | ﹤0.01% |
57,919
+4,951
| +9% | +$239K |
|
2067
Medifast
MED
$135M
| $2.29M | ﹤0.01% |
224,280
+6,458
| +3% | +$69.6K |
|
2068
Insperity
NSP
$1.96B
| $2.28M | ﹤0.01% |
84,389
+4,275
| +5% | +$138K |
|
2069
Robert Half
RHI
$4.37B
| $2.27M | ﹤0.01% |
89,560
+15,298
| +21% | +$405K |
|
2070
Perimeter Solutions
PRM
$5.65B
| $2.27M | ﹤0.01% |
92,904
+1,249
| +1% | +$31.9K |
|
2071
Plumas Bancorp
PLBC
$427M
| $2.26M | ﹤0.01% |
+46,274
| New | +$2.28M |
|
2072
Ingersoll Rand
IR
$33.6B
| $2.26M | ﹤0.01% |
28,189
+13,472
| +92% | +$1.19M |
|
|
ALMS
2073
Alumis Inc
ALMS
$3.51B
| $2.26M | ﹤0.01% |
102,456
+92,134
| +893% | +$2.3M |
|
2074
Cass Information Systems
CASS
$734M
| $2.26M | ﹤0.01% |
51,247
-744
| -1% | -$32.8K |
|
2075
Kite Realty
KRG
$5.29B
| $2.25M | ﹤0.01% |
91,816
+5,320
| +6% | +$131K |
|
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.