SIEBEL THOMAS M

PrivateCIK: 1031530
Location

REDWOOD CITY, CA

SIEBEL THOMAS M (Chief Executive Officer) sold 40.5% of their position (491.47K shares) of C3.AI, INC. on the open market

Open‑market sale worth $4.11M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderSIEBEL THOMAS MCIK 1031530
IssuerC3.AI, INC.CIK 1577526
DirectorOfficer10% Owner· Chief Executive Officer
Since Dec 2020
-491.47K
Net shares
Net seller
$4.11M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
491.47K acquired · 982.93K disposed
Non-Derivative Transactions4

Class A Common Stock

Direct
M · Option Exercise

Shares

+326.19K

Price / share

$2.04

Trade value

$665.43K

% of position

45.2%
4/13/2026
722.36K1.05M

Class A Common Stock

Direct
S · Sale

Shares

326.19K

Price / share

$8.31

Trade value

$2.71M

% of position

31.1%
4/13/2026
1.05M722.36K

Class A Common Stock

Direct
M · Option Exercise

Shares

+165.28K

Price / share

$2.04

Trade value

$337.17K

% of position

22.9%
4/14/2026
722.36K887.64K

Class A Common Stock

Direct
S · Sale

Shares

165.28K

Price / share

$8.49

Trade value

$1.40M

% of position

18.6%
4/14/2026
887.64K722.36K
Total

Net shares

+0.00

Net value

-$3.11M

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Class A Common Stock

326.19K shares

Shares

326.19K

Strike price

2.04

Held after

1.45M

Exercisable

4/13/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Class A Common Stock

165.28K shares

Shares

165.28K

Strike price

2.04

Held after

1.28M

Exercisable

4/14/2026
Non-Derivative Holdings (Post-Transaction)5

Class A Common Stock

Indirect
Shares owned170.29K

Class A Common Stock

Indirect
Shares owned1.24M

Class A Common Stock

Indirect
Shares owned694.19K

Class A Common Stock

Indirect
Shares owned9.22K

Class A Common Stock

Indirect
Shares owned72.69K
Total
2.18M indirect2.18M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
SIEBEL THOMAS M — Insider Transaction (Form 4) Filed Apr 15, 2026 | Finecho