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TS

Thomas M. Siebel

Insider · CEO and Chairman of the Board · AI

Thomas M. Siebel files insider transactions with the SEC as a ceo and chairman of the board of C3.ai (AI). We hold 20 disclosed purchases and sales filed since 2 February 2006, 7 of them in the last 90 days.

  • Files forAI
  • Disclosed buys and sells20 in all, 7 in the last 90 days
  • Last disclosure3 September 2026

Positions held

2 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 11 December 2020 — 3 September 2026CEO and Chairman of the Board · C3.ai (AI)418 Form 4 lines · source: SEC Form 4
  • Filed 31 January 2006 — 31 January 2006Chairman of the Board · Siebel Systems (SEBL)5 Form 4 lines · source: SEC Form 4

Everything they disclosed

120 entries, newest first — one per disclosure report, one per Form 4 line

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.