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 | |
|---|---|---|---|---|---|---|
1801
Dentsply Sirona
XRAY
$2.32B
| $4.67M | ﹤0.01% |
402,952
-1,377,232
| -77% | -$17.2M |
|
1802
Allison Transmission
ALSN
$10.3B
| $4.65M | ﹤0.01% |
39,724
+10,778
| +37% | +$1.22M |
|
1803
Rogers Corp
ROG
$2.29B
| $4.64M | ﹤0.01% |
43,264
+2,699
| +7% | +$278K |
|
1804
Atlassian
TEAM
$38.5B
| $4.63M | ﹤0.01% |
67,892
+15,621
| +30% | +$1.54M |
|
1805
Lazard
LAZ
$4.16B
| $4.63M | ﹤0.01% |
109,059
+85,573
| +364% | +$4.19M |
|
1806
UDR
UDR
$12.1B
| $4.62M | ﹤0.01% |
136,648
-420,703
| -75% | -$15.4M |
|
1807
IDT Corp
IDT
$1.61B
| $4.6M | ﹤0.01% |
93,605
+29,547
| +46% | +$1.46M |
|
1808
Conduent
CNDT
$242M
| $4.59M | ﹤0.01% |
3,582,235
-188,943
| -5% | -$288K |
|
1809
Steven Madden
SHOO
$3.58B
| $4.58M | ﹤0.01% |
134,963
+18,115
| +16% | +$701K |
|
1810
ManpowerGroup
MAN
$2.63B
| $4.55M | ﹤0.01% |
154,495
-82,873
| -35% | -$2.46M |
|
1811
Johnson Outdoors
JOUT
$501M
| $4.54M | ﹤0.01% |
97,621
+24,586
| +34% | +$1.15M |
|
1812
Brookdale Senior Living
BKD
$3.27B
| $4.53M | ﹤0.01% |
331,175
-2,347,347
| -88% | -$32.9M |
|
1813
Waterstone Financial
WSBF
$370M
| $4.51M | ﹤0.01% |
250,085
+51,080
| +26% | +$908K |
|
1814
Elanco Animal Health
ELAN
$11.1B
| $4.5M | ﹤0.01% |
187,928
-23,530
| -11% | -$575K |
|
1815
Protolabs
PRLB
$2.14B
| $4.5M | ﹤0.01% |
78,842
-303
| -0.4% | -$17.6K |
|
1816
Townsquare Media
TSQ
$108M
| $4.49M | ﹤0.01% |
827,734
-24,471
| -3% | -$154K |
|
1817
Casella Waste Systems
CWST
$5.73B
| $4.49M | ﹤0.01% |
56,594
+48,621
| +610% | +$4.66M |
|
1818
Green Brick Partners
GRBK
$3.03B
| $4.49M | ﹤0.01% |
69,658
+3,025
| +5% | +$213K |
|
1819
Vicor
VICR
$9.63B
| $4.49M | ﹤0.01% |
27,858
-371
| -1% | -$61.3K |
|
1820
Charter Communications
CHTR
$18.3B
| $4.48M | ﹤0.01% |
20,735
-2,856
| -12% | -$619K |
|
1821
AerSale
ASLE
$277M
| $4.48M | ﹤0.01% |
719,566
+212,524
| +42% | +$1.52M |
|
|
PPIH
1822
Perma-Pipe International
PPIH
$211M
| $4.43M | ﹤0.01% |
148,773
+60,930
| +69% | +$1.88M |
|
|
GOOS
1823
Canada Goose Holdings
GOOS
$849M
| $4.43M | ﹤0.01% |
403,001
+346,125
| +609% | +$4.16M |
|
1824
ICU Medical
ICUI
$4.56B
| $4.4M | ﹤0.01% |
34,062
+11,051
| +48% | +$1.59M |
|
|
AAMI
1825
Acadian Asset Management
AAMI
$3.22B
| $4.4M | ﹤0.01% |
80,776
+3,484
| +5% | +$183K |
|
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.