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 |
Interactive Brokers
IBKR
|
+$266M |
| 2 |
Martin Marietta Materials
MLM
|
+$178M |
| 3 |
Broadcom
AVGO
|
+$143M |
| 4 |
Reinsurance Group of America
RGA
|
+$127M |
| 5 |
FISV
Fiserv Inc
FISV
|
+$122M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$581M |
| 2 |
Apple
AAPL
|
+$544M |
| 3 |
Microsoft
MSFT
|
+$344M |
| 4 |
Eli Lilly
LLY
|
+$275M |
| 5 |
Meta Platforms (Facebook)
META
|
+$258M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 24.77% |
| 2 | Financials | 15.07% |
| 3 | Consumer Discretionary | 11.87% |
| 4 | Healthcare | 10.87% |
| 5 | Industrials | 9.69% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
CANG
2801
Cango Inc
CANG
$95.6M
| $38.8K | ﹤0.01% |
1,024
+3
| +0.3% | +$128 |
|
|
VIGL
2802
DELISTED
Vigil Neuroscience
VIGL
| $36.1K | ﹤0.01% |
20,258
+288
| +1% | +$647 |
|
2803
Acrivon Therapeutics
ACRV
$75.8M
| $35.3K | ﹤0.01% |
17,381
-207
| -1% | -$1.11K |
|
2804
Vuzix
VUZI
$224M
| $35.2K | ﹤0.01% |
+17,254
| New | +$56.5K |
|
2805
AirSculpt Technologies
AIRS
$245M
| $31.8K | ﹤0.01% |
+13,601
| New | +$61.1K |
|
2806
Rapid Micro Biosystems
RPID
$84.8M
| $30.6K | ﹤0.01% |
+11,581
| New | +$26.4K |
|
2807
Pyxis Oncology
PYXS
$205M
| $25.8K | ﹤0.01% |
26,353
-273,584
| -91% | -$365K |
|
|
HLVX
2808
DELISTED
HilleVax
HLVX
| $25K | ﹤0.01% |
17,220
+30
| +0.2% | +$55 |
|
2809
Prime Medicine
PRME
$586M
| $22.7K | ﹤0.01% |
11,426
| – | – |
|
2810
Applied Optoelectronics
AAOI
$12.1B
| – | – |
-100,852
| Closed | -$3.72M |
|
2811
Acumen Pharmaceuticals
ABOS
$182M
| – | – |
-54,278
| Closed | -$93.4K |
|
2812
Aldeyra Therapeutics
ALDX
$92.3M
| – | – |
-39,198
| Closed | -$196K |
|
2813
Alector
ALEC
$224M
| – | – |
-56,735
| Closed | -$107K |
|
2814
Allogene Therapeutics
ALLO
$725M
| – | – |
-232,356
| Closed | -$495K |
|
2815
Amprius Technologies
AMPX
$1.8B
| – | – |
-24,207
| Closed | -$67.8K |
|
2816
American Superconductor
AMSC
$1.57B
| – | – |
-13,008
| Closed | -$320K |
|
2817
Arvinas
ARVN
$587M
| – | – |
-252,685
| Closed | -$4.84M |
|
2818
Aspen Aerogels
ASPN
$506M
| – | – |
-1,003,184
| Closed | -$11.9M |
|
2819
AeroVironment
AVAV
$9.8B
| – | – |
-1,815
| Closed | -$279K |
|
2820
BARK
BARK
$96.9M
| – | – |
-1,320
| Closed | -$48.6K |
|
2821
Blink Charging
BLNK
$87M
| – | – |
-130,783
| Closed | -$182K |
|
2822
Brown & Brown
BRO
$23.9B
| – | – |
-4,469
| Closed | -$456K |
|
2823
Codexis
CDXS
$174M
| – | – |
-107,983
| Closed | -$515K |
|
2824
Celanese
CE
$4.81B
| – | – |
-10,568
| Closed | -$731K |
|
2825
Chegg
CHGG
$87.3M
| – | – |
-129,938
| Closed | -$209K |
|
Similar funds
American Century Companies's Q1 2025 Portfolio in Review
As of Q1 2025, American Century Companies held 2,990 positions worth $163B, down 6.4% from $174B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
American Century Companies's Q1 2025 filing shows 115 new, 1,752 increased, 899 reduced and 109 closed positions. Its largest new stake was iShares Russell Mid-Cap Value ETF: 619,916 shares worth $78.1M. The largest sale was NVIDIA, an estimated $581M.
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 2025 buy was iShares Russell Mid-Cap Value ETF: 619,916 shares worth $78.1M.
- American Century Companies added most to Interactive Brokers in Q1 2025, an estimated $266M increase.
- American Century Companies's biggest Q1 2025 reduction was NVIDIA, cutting an estimated $581M.
- American Century Companies fully exited Arch Resources, Inc. in Q1 2025, selling an estimated $83.2M.
- American Century Companies's ten largest holdings make up 25% of its $163B portfolio in Q1 2025.
- American Century Companies opened 115 new positions and closed 109 in Q1 2025.
- American Century Companies's portfolio value fell 6.4% quarter-over-quarter to $163B.
Based on American Century Companies's 13F filing for Q1 2025, filed 13 May 2025.