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 | |
|---|---|---|---|---|---|---|
|
THRD
2751
DELISTED
Third Harmonic Bio
THRD
| $110K | ﹤0.01% |
31,667
+4,417
| +16% | +$21.4K |
|
|
USAS
2752
Americas Gold and Silver
USAS
$1.71B
| $108K | ﹤0.01% |
80,806
+6,206
| +8% | +$7.9K |
|
2753
Sensus Healthcare
SRTS
$53M
| $106K | ﹤0.01% |
22,440
+2,520
| +13% | +$14.7K |
|
2754
Melco Resorts & Entertainment
MLCO
$2.14B
| $106K | ﹤0.01% |
20,025
| – | – |
|
2755
ProQR Therapeutics
PRQR
$264M
| $103K | ﹤0.01% |
77,686
-11,841
| -13% | -$25.2K |
|
2756
Vivid Seats
SEAT
$83M
| $102K | ﹤0.01% |
1,722
-3,098
| -64% | -$249K |
|
|
VISN
2757
Vistance Networks Inc
VISN
$2.68B
| $90.9K | ﹤0.01% |
+17,115
| New | +$90.9K |
|
2758
Traeger
COOK
$170M
| $90.2K | ﹤0.01% |
1,073
-6
| -0.6% | -$664 |
|
2759
Tango Therapeutics
TNGX
$4.34B
| $89.3K | ﹤0.01% |
65,146
-45,302
| -41% | -$111K |
|
|
TE
2760
T1 Energy
TE
$1.47B
| $88.8K | ﹤0.01% |
+70,510
| New | +$130K |
|
|
TUYA
2761
Tuya Inc
TUYA
$1.08B
| $88.7K | ﹤0.01% |
29,270
+58
| +0.2% | +$172 |
|
|
SBDS
2762
DELISTED
Solo Brands Inc
SBDS
| $86K | ﹤0.01% |
12,813
-125,737
| -91% | -$3.85M |
|
2763
Altimmune
ALT
$558M
| $85.9K | ﹤0.01% |
17,175
-27,567
| -62% | -$175K |
|
2764
Aehr Test Systems
AEHR
$4.16B
| $85.7K | ﹤0.01% |
+11,752
| New | +$130K |
|
2765
inTEST
INTT
$180M
| $85.1K | ﹤0.01% |
12,180
-29
| -0.2% | -$241 |
|
2766
Iovance Biotherapeutics
IOVA
$2.98B
| $83.2K | ﹤0.01% |
24,974
-101,680
| -80% | -$524K |
|
2767
Zegna
ZGN
$3.74B
| $80.2K | ﹤0.01% |
10,840
| – | – |
|
|
NOTV
2768
DELISTED
Inotiv
NOTV
| $79.6K | ﹤0.01% |
36,039
-3,446
| -9% | -$12.6K |
|
2769
Richtech Robotics
RR
$385M
| $78.3K | ﹤0.01% |
+39,524
| New | +$97.2K |
|
|
ZYXI
2770
DELISTED
Zynex
ZYXI
| $78K | ﹤0.01% |
35,451
-245
| -0.7% | -$1.6K |
|
2771
VistaGen Therapeutics
VTGN
$11.6M
| $77.7K | ﹤0.01% |
31,063
+1,061
| +4% | +$3K |
|
|
ADVM
2772
DELISTED
Adverum Biotechnologies
ADVM
| $77.1K | ﹤0.01% |
17,647
+1,370
| +8% | +$6.17K |
|
2773
Zentalis Pharmaceuticals
ZNTL
$303M
| $74.6K | ﹤0.01% |
46,900
+14,816
| +46% | +$32K |
|
2774
Ultralife
ULBI
$121M
| $74K | ﹤0.01% |
13,747
-310
| -2% | -$2.11K |
|
|
EPIX
2775
DELISTED
ESSA Pharma
EPIX
| $73.3K | ﹤0.01% |
46,373
| – | – |
|
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.