KLEMP WALTER V

PrivateCIK: 938419
Location

HOUSTON, TX

KLEMP WALTER V (CEO and President) exercised options at MOLECULIN BIOTECH, INC.

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

M · 1 exercise
InsiderKLEMP WALTER VCIK 938419
→
IssuerMOLECULIN BIOTECH, INC.CIK 1659617
DirectorOfficer· CEO and President
Since Jul 2019
+781.34K
Net shares
Net buyer
$18.0K
Total sold
0
Open market trades
0B · 0S
5
Total transactions
1.04M acquired · 256.16K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+207.50K

Price / share

—

Trade value

—

% of position

36.8%
10/15/2026
564.34K→771.84K

Common Stock

Direct
F · Tax Withholding

Shares

−48.66K

Price / share

$0.37

Trade value

$18.01K

% of position

6.3%
10/15/2026
771.84K→723.18K
Total

Net shares

+158.84K

Net value

-$18.01K

Derivative Transactions3

Options (right to buy)

Direct
A · Award
Converts to

Common Stock

415K shares

Shares

+415K

Strike price

0.3701

Held after

2.34M

Exercisable

—

10/15/2026

Restricted Stock Units

Direct
A · Award
Converts to

Common Stock

415K shares

Shares

+415K

Strike price

Held after

2.76M

Exercisable

—

10/15/2026

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

208K shares

Shares

−207.50K

Strike price

Held after

2.55M

Exercisable

—

10/15/2026
KLEMP WALTER V — Insider Transaction (Form 4) Filed Oct 17, 2026 | Finecho