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 |
Amphenol
APH
|
+$460M |
| 2 |
Broadcom
AVGO
|
+$298M |
| 3 |
Sysco
SYY
|
+$225M |
| 4 |
MRSH
Marsh
MRSH
|
+$200M |
| 5 |
Ascendis Pharma A/S
ASND
|
+$186M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$573M |
| 2 |
Visa
V
|
+$465M |
| 3 |
Apple
AAPL
|
+$461M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
+$363M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$358M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 26.8% |
| 2 | Financials | 13.6% |
| 3 | Consumer Discretionary | 12.52% |
| 4 | Industrials | 10.05% |
| 5 | Healthcare | 9.86% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2426
Custom Truck One Source
CTOS
$2.33B
| $675K | ﹤0.01% |
117,189
+11,442
| +11% | +$69.8K |
|
2427
Tenaris
TS
$26.6B
| $674K | ﹤0.01% |
17,525
+1,450
| +9% | +$55.9K |
|
2428
Arlo Technologies
ARLO
$1.54B
| $671K | ﹤0.01% |
47,962
-1,077
| -2% | -$16.9K |
|
2429
Akebia Therapeutics
AKBA
$241M
| $670K | ﹤0.01% |
415,988
+66,708
| +19% | +$140K |
|
2430
OppFi
OPFI
$608M
| $665K | ﹤0.01% |
63,583
-1,891
| -3% | -$19.2K |
|
|
MPX
2431
DELISTED
Marine Products Corp
MPX
| $665K | ﹤0.01% |
75,914
-4,478
| -6% | -$38.7K |
|
|
NTST
2432
NETSTREIT Corp
NTST
$2.09B
| $663K | ﹤0.01% |
37,587
+540
| +1% | +$9.83K |
|
2433
XPeng
XPEV
$11.3B
| $663K | ﹤0.01% |
32,679
+694
| +2% | +$15.1K |
|
2434
Quanterix
QTRX
$135M
| $656K | ﹤0.01% |
103,208
+5,611
| +6% | +$34.9K |
|
2435
American Outdoor Brands
AOUT
$161M
| $650K | ﹤0.01% |
84,135
-291
| -0.3% | -$2.16K |
|
|
EWCZ
2436
DELISTED
European Wax Center
EWCZ
| $650K | ﹤0.01% |
180,651
+50,900
| +39% | +$190K |
|
2437
Flotek Industries
FTK
$1.25B
| $648K | ﹤0.01% |
37,599
-982
| -3% | -$15.6K |
|
2438
Ceragon Networks
CRNT
$198M
| $648K | ﹤0.01% |
+308,443
| New | +$688K |
|
2439
LifeVantage
LFVN
$81.9M
| $644K | ﹤0.01% |
104,495
-3,082
| -3% | -$22.8K |
|
2440
Integer Holdings
ITGR
$4.25B
| $638K | ﹤0.01% |
8,131
-362,618
| -98% | -$28.9M |
|
2441
Arvinas
ARVN
$589M
| $634K | ﹤0.01% |
53,499
+22,572
| +73% | +$246K |
|
2442
Oak Valley Bancorp
OVLY
$288M
| $633K | ﹤0.01% |
21,044
| – | – |
|
2443
STAAR Surgical
STAA
$1.26B
| $632K | ﹤0.01% |
27,374
+17
| +0.1% | +$438 |
|
2444
Boston Properties
BXP
$11B
| $629K | ﹤0.01% |
+9,315
| New | +$662K |
|
2445
Tenable Holdings
TENB
$4.41B
| $628K | ﹤0.01% |
26,693
+18,921
| +243% | +$517K |
|
|
LINE
2446
Lineage Inc
LINE
$9.8B
| $628K | ﹤0.01% |
17,940
+264
| +1% | +$9.76K |
|
2447
Paysafe
PSFE
$405M
| $626K | ﹤0.01% |
77,411
+2,109
| +3% | +$20.4K |
|
|
JCAP
2448
Jefferson Capital
JCAP
$1.33B
| $625K | ﹤0.01% |
+27,997
| New | +$566K |
|
2449
Richardson Electronics
RELL
$300M
| $624K | ﹤0.01% |
57,388
+14,715
| +34% | +$157K |
|
2450
QuantumScape Corp
QS
$3.79B
| $623K | ﹤0.01% |
59,742
+8,963
| +18% | +$124K |
|
Similar funds
American Century Companies's Q4 2025 Portfolio in Review
As of Q4 2025, American Century Companies held 2,902 positions worth $199B, up 1.2% from $197B the previous quarter. Its ten largest holdings account for 27% of the portfolio.
American Century Companies's Q4 2025 filing shows 123 new, 1,653 increased, 947 reduced and 91 closed positions. Its largest new stake was Amrize Ltd: 2,173,524 shares worth $118M. The largest sale was NVIDIA, an estimated $573M.
By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 28% a quarter earlier, followed by Financials and Consumer Discretionary.
- American Century Companies's largest Q4 2025 buy was Amrize Ltd: 2,173,524 shares worth $118M.
- American Century Companies added most to Amphenol in Q4 2025, an estimated $460M increase.
- American Century Companies's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $573M.
- American Century Companies fully exited Premier in Q4 2025, selling an estimated $91.5M.
- American Century Companies's ten largest holdings make up 27% of its $199B portfolio in Q4 2025.
- American Century Companies opened 123 new positions and closed 91 in Q4 2025.
- American Century Companies's portfolio value rose 1.2% quarter-over-quarter to $199B.
Based on American Century Companies's 13F filing for Q4 2025, filed 13 Feb 2026.