MARTIN TAMMY L enters CASTELLUM, INC. with 12.50K shares plus derivative instruments
Holding both equity and derivatives at entry signals strong long-term conviction in the company.
Direct Derivatives
Filed: 1/2/2026ACC: 0001877939-26-000005
Officer· General Counsel and Secretary
Since Jan 2026
12.50K
Baseline shares
100% direct
12.50K
Direct ownership
1 position
287.50K
Derivative underlying
3 instruments
1
Security positions
All direct
Non-Derivative Holdings1
Common Stock
DirectShares owned12.50K
Total
12.50K direct12.50K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 12.50K | Direct |
| Total | 12.50K | 12.50K direct |
Derivative Holdings3
Stock Options
DirectUnderlying security
Common Stock
Underlying shares
175K
Shares owned
N/A
Exercise price
1.19
Expiration
—
Exercise window
—
Stock Options
DirectUnderlying security
Common Stock
Underlying shares
12.50K
Shares owned
N/A
Exercise price
2
Expiration
—
Exercise window
—
Stock Options
DirectUnderlying security
Common Stock
Underlying shares
100K
Shares owned
N/A
Exercise price
1.07
Expiration
—
Exercise window
—
Total
Underlying
287.50K
Owned
0.00
| Security | Underlying | Exercise Price | Exercise Window | Expiration | Underlying Shares | Shares Owned |
|---|---|---|---|---|---|---|
| Stock Options Direct | Common Stock | 1.19 | — | — | 175K | N/A |
| Stock Options Direct | Common Stock | 2 | — | — | 12.50K | N/A |
| Stock Options Direct | Common Stock | 1.07 | — | — | 100K | N/A |
| Total | 287.50K | 0.00 | ||||