C3.ai, Inc. 8-K

What Happened
C3.ai, Inc. (AI) filed an 8-K on May 12, 2026 announcing preliminary results for the fiscal fourth quarter and full fiscal year ended April 30, 2026, and reporting a leadership change: the Board unanimously appointed founder Thomas M. Siebel as Chief Executive Officer and Chairman of the Board effective May 8, 2026. Stephen Ehikian, who had served as CEO since September 2025, will become President effective May 8, 2026. The filing includes a press release (Exhibit 99.1) with the preliminary results.

Key Details

• Preliminary fiscal period covered: fourth quarter and full fiscal year ended April 30, 2026; press release issued May 12, 2026 (Exhibit 99.1).
• CEO/Chair appointment: Thomas M. Siebel (age 73) named CEO and Chairman effective May 8, 2026; he previously served as Executive Chairman since September 2025 and was CEO from July 2011 until September 2025.
• Role change for prior CEO: Stephen Ehikian (age 44) moves to President effective May 8, 2026; he had been CEO since September 2025.
• Background disclosures: No arrangements or understandings were reported regarding either appointment; no material interests requiring Item 404(a) disclosure were reported for Messrs. Siebel or Ehikian.

Why It Matters
This 8-K provides investors with two material items: preliminary financial results for the company’s fiscal Q4/FY26 and a top-level leadership change returning founder Thomas Siebel to the CEO role. Both items are commonly monitored by investors because they can influence near-term financial expectations and corporate strategy. Investors should review the company’s full financial release and subsequent filings for finalized numbers, guidance, and any additional details on management transition.