C3.ai, Inc.
A maker of enterprise artificial intelligence software, C3.ai builds a platform and a lineup of ready-made AI applications that large businesses use for tasks like predicting equipment failures and managing supply chains. Tech entrepreneur Tom Siebel founded the company in 2009, initially to help organizations track their carbon footprints. That mission explains the name: "C" stood for carbon, and "3" for measure, mitigate, and monetize.
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| Thomas M Siebel | 13G/APassive | 15.3% | 25.56M | May 15, 2026 |
| The Siebel Living Trust u/a/d 7/27/93, as amended | 13G/APassive | 1.9% | 2.77M | May 15, 2026 |
| The Siebel 2011 Irrevocable Children's Trust | 13G/APassive | 0.9% | 1.24M | May 15, 2026 |
| First Virtual Holdings, LLC | 13G/APassive | 0.4% | 509.2K | May 15, 2026 |
| Siebel Asset Management, L.P. | 13G/APassive | 0.1% | 170.3K | May 15, 2026 |
| Siebel Asset Management III, L.P. | 13G/APassive | 0.1% | 72.7K | May 15, 2026 |
| Vanguard Portfolio Management | 13GPassive | 6.1% | 8.66M | Apr 29, 2026 |
| BlackRock, Inc. | 13G/APassive | 6.8% | 9.69M | Apr 24, 2026 |
| The Vanguard Group | 13G/APassive | 0% | 0 | Mar 26, 2026 |
| G1 Execution Services, LLC | 13G/APassive | 2.9% | 3.98M | Feb 13, 2026 |