Back to Trades
SIEBEL THOMAS M
CEO and Chairman of the BoardDirector10% OwnerCIK 0001031530
Total Volume
$290.0M
25 filings
Purchases
$0
0 buy txns
Sales
$115.7M
34 sell txns
Net Activity
-$115.7M
net sold
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.
Associated Companies
Trading History
25 loaded
| Aug 13 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $4.8M |
| Aug 4 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $1.3M |
| Jul 16 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $4.2M |
| Jun 15 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $5.5M |
| Jun 3 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $196.4K |
| May 19 | AI C3.ai, Inc. | SIEBEL THOMAS M | CEO and Chairman of the Board, Director, 10% Owner | Sell | $4.2M |
| May 5 | AI C3.ai, Inc. | SIEBEL THOMAS M | Executive Chairman, Director, 10% Owner | Sell | $252.2K |
| Apr 15 | AI C3.ai, Inc. | SIEBEL THOMAS M | Executive Chairman, Director, 10% Owner | Sell | $4.1M |
| Mar 19 | AI C3.ai, Inc. | SIEBEL THOMAS M | Executive Chairman, Director, 10% Owner | Sell | $4.4M |
| Mar 13 | AI C3.ai, Inc. | SIEBEL THOMAS M | Executive Chairman, Director, 10% Owner | Sell | $213.5K |
| Feb 12 | AI C3.ai, Inc. | SIEBEL THOMAS M | Executive Chairman, Director, 10% Owner | Sell | $6.0M |
| Feb 3 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $298.4K |
| Jan 15 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $7.1M |
| Dec 18 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $7.6M |
| Dec 15 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $366.6K |
| Dec 3 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $241.6K |
| Nov 12 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $8.3M |
| Nov 4 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $476.5K |
| Oct 16 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $10.4M |
| Sep 17 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $9.8M |
| Sep 15 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $1.5M |
| Sep 3 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $283.6K |
| Aug 14 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $9.7M |
| Aug 5 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $7.7M |
| Jul 22 | AI C3.ai, Inc. | SIEBEL THOMAS M | Insider | Sell | $16.8M |
25 filings