SIEBEL THOMAS M

PrivateCIK: 1031530
Location

REDWOOD CITY, CA

SIEBEL THOMAS M (Chief Executive Officer) sold 40.0% of their position (481.64K shares) of C3.AI, INC. on the open market

Open‑market sale worth $4.19M — 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
-481.64K
Net shares
Net seller
$4.19M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
481.64K acquired · 963.28K disposed
Non-Derivative Transactions4

Class A Common Stock

Direct
M · Option Exercise

Shares

+369.62K

Price / share

$2.04

Trade value

$754.03K

% of position

51.2%
5/15/2026
722.36K1.09M

Class A Common Stock

Direct
S · Sale

Shares

369.62K

Price / share

$8.72

Trade value

$3.22M

% of position

33.8%
5/15/2026
1.09M722.36K

Class A Common Stock

Direct
M · Option Exercise

Shares

+112.01K

Price / share

$2.04

Trade value

$228.51K

% of position

15.5%
5/18/2026
722.36K834.38K

Class A Common Stock

Direct
S · Sale

Shares

112.01K

Price / share

$8.65

Trade value

$968.92K

% of position

13.4%
5/18/2026
834.38K722.36K
Total

Net shares

+0.00

Net value

-$3.21M

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Class A Common Stock

369.62K shares

Shares

369.62K

Strike price

2.04

Held after

913.09K

Exercisable

5/15/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Class A Common Stock

112.01K shares

Shares

112.01K

Strike price

2.04

Held after

801.08K

Exercisable

5/18/2026
Non-Derivative Holdings (Post-Transaction)5

Class A Common Stock

Indirect
Shares owned170.29K

Class A Common Stock

Indirect
Shares owned720.10K

Class A Common Stock

Indirect
Shares owned9.22K

Class A Common Stock

Indirect
Shares owned1.24M

Class A Common Stock

Indirect
Shares owned72.69K
Total
2.21M indirect2.21M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
SIEBEL THOMAS M — Insider Transaction (Form 4) Filed May 19, 2026 | Finecho