Last mentioned: Mar 10, 2026
Market Sell-off
Stock hits 33% YTD decline as layoff news and poor financials weigh on sentiment.
Fiscal Quarter End
C3.ai records a 46% revenue drop, missing market expectations significantly.
Leadership Change
Stephen Ehikian replaces founder Thomas Siebel as CEO due to Siebel's health reasons.
C3.ai is grappling with a 33% year-to-date stock decline following a disastrous quarterly report showing a 46% revenue contraction. Under new CEO Stephen Ehikian, the enterprise AI firm is implementing a 26% workforce reduction to stabilize a cost structure that has failed to capitalize on the broader AI boom.
A new market analysis identifies Nvidia, Microsoft, and C3.ai as the premier artificial intelligence stocks for retail investors with a $3,000 budget. These companies represent the critical hardware, cloud infrastructure, and enterprise software layers of the AI ecosystem.
This page surfaces every story mentioning Thomas Siebel across our ai coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running ai beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where Thomas Siebel was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |