Holdings of Ultra Fund
American Century Mutual Funds, Inc. · 63 declared positions · as of Apr 30, 2026
Original filing · Net assets 26.6B $ · Ten largest lines: 64.5 % of the equity sleeve
Country breakdown
Shares computed on the equity sleeve, the only part this site carries.
| Country | Lines | Value (USD) | Share |
|---|---|---|---|
| US | 59 | 26B $ | 97.69 % |
| NL | 1 | 328.1M $ | 1.23 % |
| IE | 1 | 137.3M $ | 0.52 % |
| BM | 1 | 92.6M $ | 0.35 % |
| GB | 1 | 55.8M $ | 0.21 % |
Sector breakdown is published in no regulatory filing: neither Form N-PORT nor the LEI reference data carries an activity code. It is absent rather than estimated.
Positions
| Company | Shares | Value (USD) | Weight |
|---|---|---|---|
| NVIDIA Corp | 20,619,000 | 4.1B $ | 15.47 % |
| Apple Inc | 8,052,304 | 2.2B $ | 8.22 % |
| Amazon.com Inc | 7,701,000 | 2B $ | 7.68 % |
| Alphabet Inc | 4,613,455 | 1.8B $ | 6.68 % |
| Microsoft Corp | 3,909,000 | 1.6B $ | 5.99 % |
| Alphabet Inc | 4,009,000 | 1.5B $ | 5.76 % |
| Broadcom Inc | 2,784,000 | 1.2B $ | 4.37 % |
| Tesla Inc | 2,792,000 | 1.1B $ | 4.01 % |
| Mastercard Inc | 1,733,817 | 872M $ | 3.28 % |
| Meta Platforms Inc | 1,308,000 | 800.4M $ | 3.01 % |
| Netflix Inc | 7,010,000 | 656.2M $ | 2.47 % |
| Costco Wholesale Corp | 539,000 | 546.8M $ | 2.06 % |
| Applied Materials Inc | 1,246,000 | 491.5M $ | 1.85 % |
| Vertiv Holdings Co | 1,362,000 | 447.4M $ | 1.68 % |
| Eli Lilly & Co | 465,000 | 434.6M $ | 1.63 % |
| Analog Devices Inc | 1,020,000 | 410.3M $ | 1.54 % |
| Intuitive Surgical Inc | 873,981 | 399.9M $ | 1.50 % |
| Amphenol Corp | 2,495,000 | 367.4M $ | 1.38 % |
| ASML Holding NV | 227,000 | 328.1M $ | 1.23 % |
| Cloudflare Inc | 1,600,000 | 328M $ | 1.23 % |
| Interactive Brokers Group Inc | 3,740,000 | 297.3M $ | 1.12 % |
| Palantir Technologies Inc | 1,731,000 | 240.8M $ | 0.91 % |
| Oracle Corp | 1,491,000 | 240.6M $ | 0.90 % |
| Alnylam Pharmaceuticals Inc | 747,000 | 231.2M $ | 0.87 % |
| Howmet Aerospace Inc | 928,000 | 225.5M $ | 0.85 % |
| Datadog Inc | 1,647,000 | 217.7M $ | 0.82 % |
| Synopsys Inc | 428,000 | 206.6M $ | 0.78 % |
| Westinghouse Air Brake Technologies Corp | 754,000 | 203.5M $ | 0.77 % |
| Ecolab Inc | 727,000 | 189.5M $ | 0.71 % |
| Planet Labs PBC | 4,874,000 | 180.2M $ | 0.68 % |
| Zscaler Inc | 1,220,000 | 159.4M $ | 0.60 % |
| Ascendis Pharma A/S | 664,000 | 152.3M $ | 0.57 % |
| Advanced Drainage Systems Inc | 977,000 | 145.8M $ | 0.55 % |
| IDEXX Laboratories Inc | 257,000 | 144.1M $ | 0.54 % |
| Acuity Inc | 492,000 | 142.6M $ | 0.54 % |
| Ciena Corp | 263,000 | 138.8M $ | 0.52 % |
| Johnson Controls International plc | 940,000 | 137.3M $ | 0.52 % |
| Fair Isaac Corp | 133,000 | 136.3M $ | 0.51 % |
| Snowflake Inc | 977,000 | 133.3M $ | 0.50 % |
| Regeneron Pharmaceuticals, Inc. | 176,000 | 124.4M $ | 0.47 % |
| Vertex Pharmaceuticals Inc | 275,000 | 117.5M $ | 0.44 % |
| Viking Holdings Ltd | 1,130,000 | 92.6M $ | 0.35 % |
| Donaldson Co Inc | 1,027,000 | 90.6M $ | 0.34 % |
| Chipotle Mexican Grill Inc | 2,204,000 | 74.9M $ | 0.28 % |
| Wingstop Inc | 446,000 | 73.2M $ | 0.28 % |
| Tradeweb Markets Inc | 639,000 | 72.4M $ | 0.27 % |
| EOG Resources Inc | 496,000 | 69.7M $ | 0.26 % |
| Booking Holdings Inc | 400,000 | 67.3M $ | 0.25 % |
| MSCI Inc | 113,000 | 66.8M $ | 0.25 % |
| Nordson Corp | 228,000 | 65.8M $ | 0.25 % |
| Insulet Corp | 380,000 | 65.4M $ | 0.25 % |
| Dynatrace Inc | 1,608,000 | 58.2M $ | 0.22 % |
| Okta Inc | 784,000 | 57.7M $ | 0.22 % |
| HEICO Corp | 209,000 | 56.4M $ | 0.21 % |
| Rolls-Royce Holdings PLC | 3,467,000 | 55.8M $ | 0.21 % |
| Cintas Corp | 300,000 | 52.4M $ | 0.20 % |
| AppLovin Corp | 100,000 | 44.6M $ | 0.17 % |
| Constellation Energy Corp. | 137,000 | 42.9M $ | 0.16 % |
| Tractor Supply Co | 1,205,000 | 42.3M $ | 0.16 % |
| Visa Inc | 126,000 | 41.6M $ | 0.16 % |
| Docusign Inc | 871,000 | 40.1M $ | 0.15 % |
| Arthur J Gallagher & Co | 177,000 | 36.5M $ | 0.14 % |
| Abiomed Inc | 281,340 | 287K $ | 0.00 % |