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SIEBEL THOMAS M

CEO and Chairman of the BoardDirector10% OwnerCIK 0001031530

Largest Purchase

No open-market purchases in the recent filings.

Profile

Filings
25
Buy transactions
0
Sell transactions
34
Companies
1
Active
2025–2026

Across 25 filings between 2025–2026, SIEBEL THOMAS M, CEO and Chairman of the Board, Director, 10% Owner, has disclosed $290.0M in transactions — all concentrated in C3.ai, Inc. (AI). Their disclosed trades are heavily weighted toward selling$0 in buys and $115.7M in sells. Data is sourced from official SEC Form 3, 4, and 5 filings.

Trading History

25 loaded
Aug 13AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$4.8M
Aug 4AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$1.3M
Jul 16AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$4.2M
Jun 15AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$5.5M
Jun 3AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$196.4K
May 19AI
C3.ai, Inc.
SIEBEL THOMAS MCEO and Chairman of the Board, Director, 10% OwnerSell$4.2M
May 5AI
C3.ai, Inc.
SIEBEL THOMAS MExecutive Chairman, Director, 10% OwnerSell$252.2K
Apr 15AI
C3.ai, Inc.
SIEBEL THOMAS MExecutive Chairman, Director, 10% OwnerSell$4.1M
Mar 19AI
C3.ai, Inc.
SIEBEL THOMAS MExecutive Chairman, Director, 10% OwnerSell$4.4M
Mar 13AI
C3.ai, Inc.
SIEBEL THOMAS MExecutive Chairman, Director, 10% OwnerSell$213.5K
Feb 12AI
C3.ai, Inc.
SIEBEL THOMAS MExecutive Chairman, Director, 10% OwnerSell$6.0M
Feb 3AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$298.4K
Jan 15AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$7.1M
Dec 18AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$7.6M
Dec 15AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$366.6K
Dec 3AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$241.6K
Nov 12AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$8.3M
Nov 4AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$476.5K
Oct 16AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$10.4M
Sep 17AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$9.8M
Sep 15AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$1.5M
Sep 3AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$283.6K
Aug 14AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$9.7M
Aug 5AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$7.7M
Jul 22AI
C3.ai, Inc.
SIEBEL THOMAS MInsiderSell$16.8M

25 filings