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 | |
|---|---|---|---|---|---|---|
2551
Patria Investments
PAX
$1.86B
| $422K | ﹤0.01% |
33,498
+10,105
| +43% | +$142K |
|
2552
Sky Harbour Group
SKYH
$386M
| $420K | ﹤0.01% |
43,657
-25,425
| -37% | -$234K |
|
|
AAT
2553
American Assets Trust
AAT
$1.4B
| $420K | ﹤0.01% |
22,826
| – | – |
|
2554
Janux Therapeutics
JANX
$967M
| $420K | ﹤0.01% |
30,215
+2,524
| +9% | +$34.6K |
|
2555
Franklin FTSE India ETF
FLIN
$2.69B
| $418K | ﹤0.01% |
+12,579
| New | +$460K |
|
2556
State Street SPDR Bloomberg Convertible Securities ETF
CWB
$5.61B
| $417K | ﹤0.01% |
4,552
-13,414
| -75% | -$1.25M |
|
2557
Compass Therapeutics
CMPX
$387M
| $414K | ﹤0.01% |
78,328
+37,916
| +94% | +$219K |
|
2558
Shift4
FOUR
$3.26B
| $409K | ﹤0.01% |
9,364
+4,670
| +99% | +$258K |
|
2559
Liberty Live Group Series A
LLYVA
$9.09B
| $409K | ﹤0.01% |
4,467
-764
| -15% | -$67.1K |
|
2560
Holley
HLLY
$384M
| $409K | ﹤0.01% |
133,296
+4,062
| +3% | +$15.4K |
|
2561
Citizens & Northern Corp
CZNC
$455M
| $406K | ﹤0.01% |
18,188
+7,395
| +69% | +$164K |
|
2562
Cerence
CRNC
$413M
| $405K | ﹤0.01% |
64,130
+14,763
| +30% | +$133K |
|
2563
Immersion
IMMR
$252M
| $402K | ﹤0.01% |
73,623
-3,071
| -4% | -$19.4K |
|
2564
Symbotic
SYM
$5.22B
| $400K | ﹤0.01% |
+7,526
| New | +$431K |
|
2565
Organogenesis Holdings
ORGO
$239M
| $399K | ﹤0.01% |
168,372
-1,531
| -0.9% | -$5.3K |
|
|
HUYA
2566
Huya Inc
HUYA
$558M
| $397K | ﹤0.01% |
120,217
+2,924
| +2% | +$10.8K |
|
|
MPX
2567
DELISTED
Marine Products Corp
MPX
| $396K | ﹤0.01% |
54,435
-21,479
| -28% | -$177K |
|
|
CRWV
2568
CoreWeave
CRWV
$49.5B
| $395K | ﹤0.01% |
+5,100
| New | +$443K |
|
2569
Kodiak Sciences
KOD
$2.84B
| $395K | ﹤0.01% |
10,356
+1,803
| +21% | +$46.6K |
|
|
BRSL
2570
Brightstar Lottery PLC
BRSL
$2.03B
| $392K | ﹤0.01% |
30,763
-75,049
| -71% | -$1.03M |
|
|
SII
2571
Sprott
SII
$3.03B
| $392K | ﹤0.01% |
2,744
+692
| +34% | +$92.6K |
|
2572
Leonardo DRS
DRS
$12B
| $390K | ﹤0.01% |
8,770
+315
| +4% | +$13.3K |
|
|
TECX
2573
Tectonic Therapeutic
TECX
$606M
| $387K | ﹤0.01% |
+12,534
| New | +$308K |
|
2574
Barnes & Noble Education
BNED
$443M
| $386K | ﹤0.01% |
43,749
+1,024
| +2% | +$8.86K |
|
|
FIG
2575
Figma
FIG
$12.4B
| $386K | ﹤0.01% |
+18,240
| New | +$500K |
|
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.