TAPPIN MATTHEW

PrivateCIK: 1986259
Location

SAN FRANCISCO, CA

TAPPIN MATTHEW (President, Software Products) exercised options at STEM, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderTAPPIN MATTHEWCIK 1986259
IssuerSTEM, INC.CIK 1758766
Officer· President, Software Products
Since Mar 2026
-5.42K
Net shares
Net seller
$99.0K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
15K acquired · 20.42K disposed
Non-Derivative Transactions2

Common Stock, Par Value $0.0001 Per Share

Direct
M · Option Exercise

Shares

+15K

Price / share

Trade value

% of position

801.3%
11/7/2025
1.87K16.87K

Common Stock, Par Value $0.0001 Per Share

Direct
F · Tax Withholding

Shares

5.42K

Price / share

$18.27

Trade value

$98.95K

% of position

32.1%
11/10/2025
16.87K11.46K
Total

Net shares

+9.58K

Net value

-$98.95K

Derivative Transactions1

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock, Par Value $0.0001 Per Share

15K shares

Shares

15K

Strike price

Held after

0.00

Exercisable

11/7/2025
TAPPIN MATTHEW — Insider Transaction (Form 4) Filed Nov 12, 2025 | Finecho