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 | |
|---|---|---|---|---|---|---|
501
Oshkosh
OSK
$9.59B
| $85.2M | 0.04% |
578,977
-323,812
| -36% | -$50.5M |
|
502
Atkore
ATKR
$3.16B
| $84.8M | 0.04% |
1,439,116
+185,567
| +15% | +$12.1M |
|
503
Associated Banc-Corp
ASB
$5.91B
| $84.5M | 0.04% |
3,267,009
+421,208
| +15% | +$11.2M |
|
504
Hayward Holdings
HAYW
$3.36B
| $84M | 0.04% |
6,281,396
-680,820
| -10% | -$10.6M |
|
505
Impinj
PI
$5.6B
| $84M | 0.04% |
817,992
+138,407
| +20% | +$18.4M |
|
506
Nextpower Inc
NXT
$15.7B
| $84M | 0.04% |
696,622
-21,234
| -3% | -$2.35M |
|
507
Pediatrix Medical
MD
$2.2B
| $84M | 0.04% |
3,925,366
+227,231
| +6% | +$4.73M |
|
508
Benchmark Electronics
BHE
$2.96B
| $83.5M | 0.04% |
1,490,098
+155,132
| +12% | +$8.34M |
|
509
Bath & Body Works
BBWI
$4.1B
| $83.5M | 0.04% |
4,473,665
-840,236
| -16% | -$18.2M |
|
510
National Vision
EYE
$1.81B
| $83.5M | 0.04% |
3,224,499
-355,868
| -10% | -$9.67M |
|
511
Iron Mountain
IRM
$36.1B
| $83.3M | 0.04% |
815,792
+419,899
| +106% | +$41.8M |
|
512
Texas Capital Bancshares
TCBI
$4.32B
| $83.1M | 0.04% |
875,667
+478,763
| +121% | +$46.7M |
|
513
TransAlta
TAC
$3.93B
| $82.9M | 0.04% |
6,304,689
+242,972
| +4% | +$3.13M |
|
514
Suncor Energy
SU
$70.3B
| $82.6M | 0.04% |
1,248,841
+200,195
| +19% | +$11.1M |
|
515
Novanta
NOVT
$6.29B
| $81.9M | 0.04% |
693,230
+101,987
| +17% | +$13.4M |
|
516
Regal Rexnord
RRX
$11.9B
| $81.8M | 0.04% |
437,040
+81,499
| +23% | +$15.1M |
|
517
Americold
COLD
$4.27B
| $81.8M | 0.04% |
7,137,700
-774,762
| -10% | -$9.71M |
|
518
Simon Property Group
SPG
$72.3B
| $81.6M | 0.04% |
437,528
-84,145
| -16% | -$16M |
|
519
Herc Holdings
HRI
$5.61B
| $81.4M | 0.04% |
818,046
-362,808
| -31% | -$51.8M |
|
520
Prudential Financial
PRU
$41.8B
| $81.3M | 0.04% |
832,689
+231,564
| +39% | +$24M |
|
521
Envista
NVST
$4.52B
| $81.2M | 0.04% |
3,201,626
-1,387,569
| -30% | -$36M |
|
522
Walt Disney
DIS
$181B
| $81.1M | 0.04% |
841,153
-34,342
| -4% | -$3.63M |
|
523
BridgeBio Pharma
BBIO
$16.5B
| $81M | 0.04% |
1,090,326
-16,494
| -1% | -$1.2M |
|
524
Oscar Health
OSCR
$8.61B
| $80.6M | 0.04% |
7,029,356
+731,195
| +12% | +$10.3M |
|
525
Hershey
HSY
$36.6B
| $80.6M | 0.04% |
387,604
-65,787
| -15% | -$13.9M |
|
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.