Form 4 Tracker
Thomas M Siebel

Director, CEO and Chairman of the Board, 10% Owner; Director, Executive Chairman, 10% Owner · 18 filings · Latest: Oct 13, 2026

C3.ai, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerMar 17, 2026
Option Exercise
$2.04282,203$575.7K1,004,565
AI
Thomas M. Siebel—Mar 17, 2026
Proposed Sale
$8.801,946,607$17.1M—
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerMar 12, 2026
Sale
$9.1123,435$213.5K743,693
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerMar 11, 2026
Option Exercise
—44,766—767,128
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerMar 2, 2026
Sale
$7.7917,655$137.5K737,443
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerMar 1, 2026
Option Exercise
—32,736—755,098
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerFeb 10, 2026
Sale
$11.66511,732$6.0M722,362
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerFeb 10, 2026
Option Exercise
$2.04511,732$1.0M1,234,094
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerFeb 2, 2026
Sale
$10.8127,605$298.4K747,882
AI
Thomas M SiebelDirector, Executive Chairman, 10% OwnerFeb 1, 2026
Option Exercise
—53,125—775,487
AI
Thomas M. Siebel—Feb 2, 2026
Proposed Sale
$11.0273,500$810.0K—
AI
Thomas M. Siebel—Nov 11, 2025
Proposed Sale
$15.501,386,127$21.5M—
AI
Thomas M. Siebel—Nov 11, 2025
Proposed Sale
$15.50724,318$11.2M—
AI
Thomas M. Siebel—Nov 3, 2025
Proposed Sale
$17.5873,000$1.3M—
AI
Thomas M. Siebel—Sep 2, 2025
Proposed Sale
$17.33114,000$2.0M—
AI
Thomas M. Siebel—Aug 4, 2025
Proposed Sale
$22.43352,175$7.9M—
AI
Thomas M. Siebel—Jul 18, 2025
Proposed Sale
$28.362,288,073$64.9M—
AI
Thomas M. Siebel—May 2, 2025
Proposed Sale
$21.8347,000$1.0M—
AI
Thomas M. Siebel—Apr 14, 2025
Proposed Sale
$20.58598,186$12.3M—
AI
Thomas M. Siebel—Jan 14, 2025
Proposed Sale
$31.201,956,636$61.0M—

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