Senior insider sale

Director, EVP and COO at HALLIBURTON CO — senior position signals high conviction

$2.41M

68.69K shares

What this filing means

SLOCUM JEFFREY SHANNON plans to sell 68.69K shares of HALLIBURTON CO valued at approximately $2.41M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

SLOCUM JEFFREY SHANNON

Filed: 8/19/2026ACC: 0001959173-26-006235

InsiderSLOCUM JEFFREY SHANNONCIK 1970357

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IssuerHALLIBURTON COCIK 45012

DirectorOfficer· Director, EVP and COO

Since Mar 2026

68.69K

Shares to sell

$2.41M

Approx. market value

52.57K

Acquired (3 months)

Planned

1 completed

Securities Acquired — Last 3 Months18

Sort

Restricted Stock Vesting

Compensation

4/27/2025

996.00

ESPP Purchase

Cash

3/31/2025

902.00

Restricted Stock Vesting

Compensation

3/3/2025

10.40K

Restricted Stock Vesting

Compensation

1/4/2025

7.03K

Restricted Stock Vesting

Compensation

1/3/2025

6.48K

Restricted Stock Vesting

Compensation

1/2/2025

4.42K

Restricted Stock Vesting

Compensation

10/28/2024

2.39K

ESPP Purchase

Cash

6/28/2024

70.00

ESPP Purchase

Cash

3/28/2024

615.00

Restricted Stock Vesting

Compensation

1/4/2024

7.03K

Restricted Stock Vesting

Compensation

1/3/2024

6.42K

Restricted Stock Vesting

Compensation

1/2/2024

1.85K

Restricted Stock Vesting

Compensation

10/28/2023

2.42K

ESPP Purchase

Cash

6/30/2023

151.00

ESPP Purchase

Cash

3/31/2023

527.00

Restricted Stock Vesting

Compensation

2/27/2023

1.00

ESPP Purchase

Cash

6/30/2022

324.00

ESPP Purchase

Cash

3/31/2022

545.00

Total acquired52.57K

Acquisition Date	Type	Amount Acquired	Gift
4/27/2025	Restricted Stock Vesting Compensation	996.00	—
3/31/2025	ESPP Purchase Cash	902.00	—
3/3/2025	Restricted Stock Vesting Compensation	10.40K	—
1/4/2025	Restricted Stock Vesting Compensation	7.03K	—
1/3/2025	Restricted Stock Vesting Compensation	6.48K	—
1/2/2025	Restricted Stock Vesting Compensation	4.42K	—
10/28/2024	Restricted Stock Vesting Compensation	2.39K	—
6/28/2024	ESPP Purchase Cash	70.00	—
3/28/2024	ESPP Purchase Cash	615.00	—
1/4/2024	Restricted Stock Vesting Compensation	7.03K	—
1/3/2024	Restricted Stock Vesting Compensation	6.42K	—
1/2/2024	Restricted Stock Vesting Compensation	1.85K	—
10/28/2023	Restricted Stock Vesting Compensation	2.42K	—
6/30/2023	ESPP Purchase Cash	151.00	—
3/31/2023	ESPP Purchase Cash	527.00	—
2/27/2023	Restricted Stock Vesting Compensation	1.00	—
6/30/2022	ESPP Purchase Cash	324.00	—
3/31/2022	ESPP Purchase Cash	545.00	—
Total		52.57K

Planned & Completed Dispositions2

Sort

Completed

—Completed

Units to sell

16.12K

Market value

$565.6K

8/18/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

52.57K

Market value

$1.84M

8/19/2026

Total

Units

68.69K

Value

$2.41M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
8/18/2026	16.12K	$565.6K	—	Completed
Planned — Approximate Date
8/19/2026	52.57K	$1.84M	NYSE	Planned
Total	68.69K	$2.41M