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 | |
|---|---|---|---|---|---|---|
826
Ally Financial
ALLY
$13.3B
| $42M | 0.02% |
1,069,779
+99,371
| +10% | +$4.09M |
|
827
Colliers International
CIGI
$5.11B
| $41.9M | 0.02% |
392,075
-22,152
| -5% | -$2.76M |
|
828
Planet Fitness
PLNT
$3.7B
| $41.8M | 0.02% |
561,586
+189,067
| +51% | +$16.6M |
|
829
Fox Class A
FOXA
$26.6B
| $41.7M | 0.02% |
714,608
+124,068
| +21% | +$7.92M |
|
830
FirstService
FSV
$6.27B
| $41.7M | 0.02% |
299,631
+121,577
| +68% | +$18.5M |
|
831
Horace Mann Educators
HMN
$2.13B
| $41.7M | 0.02% |
976,233
+62,323
| +7% | +$2.69M |
|
832
Yum China
YUMC
$16.5B
| $41.7M | 0.02% |
853,952
-837
| -0.1% | -$43.3K |
|
833
Jabil
JBL
$35.3B
| $41.6M | 0.02% |
156,720
-271,313
| -63% | -$68.3M |
|
834
Assurant
AIZ
$14.2B
| $41.6M | 0.02% |
190,999
+29,231
| +18% | +$6.66M |
|
835
Antero Midstream
AM
$10.4B
| $41.6M | 0.02% |
1,822,713
-454,749
| -20% | -$9.39M |
|
836
Affirm
AFRM
$25.3B
| $41.4M | 0.02% |
903,899
-4,536
| -0.5% | -$262K |
|
837
Praxis Precision Medicines
PRAX
$10.2B
| $41.3M | 0.02% |
128,254
+52,888
| +70% | +$16.4M |
|
838
United Therapeutics
UTHR
$22.7B
| $41.1M | 0.02% |
69,368
+1,411
| +2% | +$703K |
|
839
Sun Communities
SUI
$14.4B
| $41M | 0.02% |
325,196
+138,866
| +75% | +$17.9M |
|
840
Vodafone
VOD
$36.4B
| $40.9M | 0.02% |
2,724,776
+551,576
| +25% | +$8.06M |
|
841
Arrowhead Research
ARWR
$12.5B
| $40.9M | 0.02% |
651,544
+643,802
| +8,316% | +$40.8M |
|
842
Commercial Metals
CMC
$8.1B
| $40.8M | 0.02% |
664,964
-1,293,392
| -66% | -$93.4M |
|
843
Valmont Industries
VMI
$9.5B
| $40.8M | 0.02% |
102,216
-9,207
| -8% | -$4.02M |
|
844
HUB Group
HUBG
$2.9B
| $40.6M | 0.02% |
1,127,271
+458,487
| +69% | +$19.4M |
|
|
SNCY
845
DELISTED
Sun Country Airlines
SNCY
| $40.4M | 0.02% |
2,444,823
+349,565
| +17% | +$6.24M |
|
|
BLD
846
DELISTED
TopBuild
BLD
| $40.4M | 0.02% |
114,900
-45,262
| -28% | -$20.3M |
|
847
Banner Corp
BANR
$2.43B
| $40.4M | 0.02% |
664,996
-10,725
| -2% | -$665K |
|
848
TriNet
TNET
$3.09B
| $40.2M | 0.02% |
1,103,131
-209,852
| -16% | -$10M |
|
849
Zions Bancorporation
ZION
$10.3B
| $40M | 0.02% |
693,964
+46,444
| +7% | +$2.74M |
|
850
Centrus Energy
LEU
$3.78B
| $39.8M | 0.02% |
229,374
-312,496
| -58% | -$75.4M |
|
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.