Tatum Mark A.
SEC insider (Form 3/4/5 filer). CIK 0001853185. Director at General Motors Co (GM). 4 reported Form 4/5 transactions since Sep 2024; latest on Dec 31, 2025. Located in DETROIT, MI.
Companies Tatum Mark A. has filed insider reports for
- General Motors Co (GM): Director
Tatum Mark A.
CIK: 0001853185
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
General Motors Co
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Dec 31, 2025GM
General Motors Co
AwardDirectDeferred Share Units ("DSUs")
3.5K shares- - Dec 31, 2025GM
General Motors Co
AwardDirectDeferred Share Units ("DSUs")
180 shares- - Dec 31, 2024GM
General Motors Co
AwardDirectDeferred Share Units ("DSUs")
4.3K shares- - Dec 31, 2024GM
General Motors Co
AwardDirectDeferred Share Units ("DSUs")
147 shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Dec 31, 2025 | GM General Motors Co | Award Deferred Share Units ("DSUs") | 3,488 | - | - | Direct |
| Dec 31, 2025 | GM General Motors Co | Award Deferred Share Units ("DSUs") | 180 | - | - | Direct |
| Dec 31, 2024 | GM General Motors Co | Award Deferred Share Units ("DSUs") | 4,263 | - | - | Direct |
| Dec 31, 2024 | GM General Motors Co | Award Deferred Share Units ("DSUs") | 147 | - | - | Direct |
1-4 of 4 transactions