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 | |
|---|---|---|---|---|---|---|
151
Argan
AGX
$8.37B
| $230M | 0.12% |
421,648
-35,603
| -8% | -$14.5M |
|
152
Advanced Drainage Systems
WMS
$10.9B
| $227M | 0.12% |
1,657,753
+143,815
| +9% | +$22.3M |
|
153
F5
FFIV
$22.7B
| $227M | 0.12% |
784,767
+100,598
| +15% | +$27.9M |
|
154
Lear
LEA
$8.18B
| $227M | 0.12% |
1,872,811
+148,152
| +9% | +$18.5M |
|
155
RTX Corp
RTX
$301B
| $226M | 0.12% |
1,171,505
-99,725
| -8% | -$19.8M |
|
156
FedEx
FDX
$75.4B
| $225M | 0.12% |
631,738
+19,434
| +3% | +$6.75M |
|
157
California Resources
CRC
$4.62B
| $225M | 0.12% |
3,243,605
+67,567
| +2% | +$3.82M |
|
158
Liberty Energy
LBRT
$3.25B
| $222M | 0.11% |
7,699,332
+475,986
| +7% | +$12.1M |
|
159
Brunswick
BC
$5.28B
| $222M | 0.11% |
3,045,726
+497,197
| +20% | +$40.1M |
|
|
160
Owens Corning
OC
$12.4B
| $221M | 0.11% |
2,042,502
+1,728,035
| +550% | +$206M |
|
161
AXIS Capital
AXS
$7.55B
| $221M | 0.11% |
2,179,401
-444,928
| -17% | -$45.7M |
|
162
Chipotle Mexican Grill
CMG
$41.5B
| $221M | 0.11% |
6,890,002
-1,478,255
| -18% | -$54.7M |
|
163
Emcor
EME
$36B
| $220M | 0.11% |
298,025
-52,004
| -15% | -$37.9M |
|
164
Macy's
M
$6.68B
| $220M | 0.11% |
12,143,150
+1,011,908
| +9% | +$20.5M |
|
165
Pricesmart
PSMT
$5.46B
| $219M | 0.11% |
1,453,112
+115,185
| +9% | +$16.8M |
|
166
Monolithic Power Systems
MPWR
$68.9B
| $218M | 0.11% |
199,685
-3,879
| -2% | -$4.24M |
|
167
S&P Global
SPGI
$120B
| $218M | 0.11% |
512,819
-373,758
| -42% | -$174M |
|
168
International Bancshares
IBOC
$4.57B
| $217M | 0.11% |
3,228,578
+30,173
| +0.9% | +$2.09M |
|
169
Labcorp
LH
$25.9B
| $216M | 0.11% |
810,805
-8,705
| -1% | -$2.36M |
|
170
GATX Corp
GATX
$6.27B
| $215M | 0.11% |
1,261,370
-17,124
| -1% | -$3.08M |
|
171
Alkermes
ALKS
$8.25B
| $215M | 0.11% |
6,072,103
+115,279
| +2% | +$3.58M |
|
172
Axos Financial
AX
$5.68B
| $214M | 0.11% |
2,510,407
+35,652
| +1% | +$3.25M |
|
173
Pinduoduo
PDD
$131B
| $214M | 0.11% |
2,089,680
+867,032
| +71% | +$91.1M |
|
|
PR
174
Permian Resources
PR
$16.9B
| $212M | 0.11% |
9,930,392
-1,370,198
| -12% | -$23.7M |
|
175
Acuity Brands
AYI
$10.8B
| $210M | 0.11% |
748,980
-8,247
| -1% | -$2.51M |
|
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.