MCCOLLUM MARK A

CIK: 0001215888
Director
Primary company: HALLIBURTON CO (HAL)

MCCOLLUM MARK A is a corporate insider at HALLIBURTON CO (HAL) filing SEC Form 4 transactions. 203 transactions across 10 companies, totaling $0 in purchases and $16,258,953 in sales. Source: SEC EDGAR.

Total Transactions
203
Total Buy Value
$0
Total Sell Value
$16.26M
Net Activity
$-16.26M
Last Transaction
May 2026
Companies
10

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Exercise
Shares
2,168
Price
-
Value
-
Type
Exercise
Shares
2,168
Price
-
Value
-
SEADRILL Ltd
SDRL
Type
Award
Shares
2,618
Price
-
Value
-
Type
Award
Shares
1,845
Price
$92.15
Value
$170K
Seadrill Ltd
SDRL
Type
Exercise
Shares
4,860
Price
-
Value
-
Seadrill Ltd
SDRL
Type
Exercise
Shares
4,860
Price
-
Value
-
Type
Award
Shares
727
Price
$78.00
Value
$57K
Type
Exercise
Shares
1,128
Price
-
Value
-
Type
Exercise
Shares
1,128
Price
-
Value
-
Type
Award
Shares
2,168
Price
-
Value
-
Seadrill Ltd
SDRL
Type
Award
Shares
4,860
Price
-
Value
-
Seadrill Ltd
SDRL
Type
Exercise
Shares
2,409
Price
-
Value
-
Seadrill Ltd
SDRL
Type
Exercise
Shares
2,409
Price
-
Value
-
Type
Disposition
Shares
8,130
Price
-
Value
-
Type
Disposition
Shares
8,169
Price
-
Value
-
Type
Exercise
Shares
1,136
Price
-
Value
-
Type
Exercise
Shares
1,136
Price
-
Value
-
Type
Award
Shares
1,128
Price
-
Value
-
Type
Award
Shares
8,130
Price
-
Value
-
Type
Exercise
Shares
1,446
Price
$0.00
Value
$0