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 | |
|---|---|---|---|---|---|---|
2751
Lakeland Industries
LAKE
$119M
| $129K | ﹤0.01% |
15,721
-41
| -0.3% | -$370 |
|
2752
Simulations Plus
SLP
$371M
| $128K | ﹤0.01% |
+10,795
| New | +$159K |
|
2753
Ceragon Networks
CRNT
$201M
| $127K | ﹤0.01% |
58,616
-249,827
| -81% | -$566K |
|
2754
Seer Inc
SEER
$120M
| $124K | ﹤0.01% |
73,815
-1,354
| -2% | -$2.51K |
|
2755
Allogene Therapeutics
ALLO
$694M
| $123K | ﹤0.01% |
+50,228
| New | +$101K |
|
2756
InnovAge Holding
INNV
$1.52B
| $121K | ﹤0.01% |
+15,109
| New | +$113K |
|
2757
Star Holdings Shares of Beneficial Interest
STHO
$116M
| $121K | ﹤0.01% |
15,965
| – | – |
|
2758
Q32 Bio
QTTB
$464M
| $121K | ﹤0.01% |
+18,770
| New | +$89.2K |
|
2759
Richtech Robotics
RR
$360M
| $118K | ﹤0.01% |
+56,583
| New | +$174K |
|
2760
RF Industries
RFIL
$139M
| $118K | ﹤0.01% |
11,411
-1,979
| -15% | -$20.1K |
|
|
JFIN
2761
Jiayin Group
JFIN
$137M
| $117K | ﹤0.01% |
27,897
-2,636
| -9% | -$16.6K |
|
2762
American Airlines Group
AAL
$10.6B
| $117K | ﹤0.01% |
+10,879
| New | +$144K |
|
2763
Perma-Fix Environmental Services
PESI
$383M
| $114K | ﹤0.01% |
+10,692
| New | +$147K |
|
2764
Zentalis Pharmaceuticals
ZNTL
$302M
| $114K | ﹤0.01% |
48,572
+35,692
| +277% | +$92.2K |
|
2765
Delcath Systems
DCTH
$524M
| $113K | ﹤0.01% |
+12,158
| New | +$118K |
|
2766
Oramed Pharmaceuticals
ORMP
$179M
| $110K | ﹤0.01% |
32,307
+12,716
| +65% | +$43.1K |
|
2767
Navitas Semiconductor
NVTS
$3.63B
| $109K | ﹤0.01% |
12,384
-26,873
| -68% | -$247K |
|
2768
SmartRent
SMRT
$272M
| $104K | ﹤0.01% |
69,042
+49,781
| +258% | +$84.1K |
|
2769
Outset Medical
OM
$90.8M
| $103K | ﹤0.01% |
26,943
| – | – |
|
2770
Energy Recovery
ERII
$443M
| $103K | ﹤0.01% |
10,225
-41,063
| -80% | -$537K |
|
2771
The Joint Corp
JYNT
$119M
| $102K | ﹤0.01% |
11,481
-17,964
| -61% | -$163K |
|
|
HTT
2772
High Templar Tech Ltd
HTT
$391M
| $99.1K | ﹤0.01% |
51,105
+3,220
| +7% | +$9.09K |
|
|
NAK
2773
Northern Dynasty Minerals
NAK
$958M
| $99K | ﹤0.01% |
70,953
+16,300
| +30% | +$28.3K |
|
2774
C3.ai
AI
$1.59B
| $97.9K | ﹤0.01% |
+11,624
| New | +$125K |
|
2775
Biohaven
BHVN
$2.21B
| $96.2K | ﹤0.01% |
11,368
-674,216
| -98% | -$7.38M |
|
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.