Halliburton COO sells 52,572 shares at $35.09

HALLIBURTON CO (HAL) director and executive officer Jeffrey Shannon Slocum reported selling 52,572 shares of Halliburton common stock on August 19, 2026 in an open-market transaction under a Rule 10b5-1 trading plan adopted on May 8, 2026.

Rhea-AI Filing Summary

HALLIBURTON CO (HAL) director and executive officer Jeffrey Shannon Slocum reported selling 52,572 shares of Halliburton common stock on August 19, 2026 in an open-market transaction under a Rule 10b5-1 trading plan adopted on May 8, 2026. The weighted average sale price was $35.09 per share, with individual sale prices ranging from $35.00 to $35.43. Following this sale, Slocum directly held 118,729.952 shares of Halliburton common stock. He also reported outstanding stock options to buy Halliburton common stock, including options with exercise prices of $49.61 for 12,090 underlying shares expiring January 2, 2028, and $55.68 for 3,722 underlying shares expiring January 3, 2027.

Insider Trade Summary 10b5-1

Net Seller: 52,572 shares

Net Sell 3 txns

Insider Slocum Jeffrey Shannon

Role Director, EVP and COO

Sold 52,572 shs ($1.84M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	52,572	$35.09	$1.84M
holding	Option to Buy Common Stock	--	--	--
holding	Option to Buy Common Stock	--	--	--

Holdings After Transaction: Common Stock — 118,729.952 shares (Direct); Option to Buy Common Stock — 15,812 contracts (Direct)

Footnotes (2)

1. F1. The sale was effected pursuant to a Rule 10b5-l trading plan adopted by the Reporting Person on May 8, 2026.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.00 to $35.43, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

Key Figures

Shares sold: 52,572 shares Weighted average sale price: $35.09 per share Shares held after transaction: 118,729.952 shares +4 more

7 metrics

Shares sold 52,572 shares Common stock sale on August 19, 2026

Weighted average sale price $35.09 per share Common stock sale on August 19, 2026; prices ranged $35.00–$35.43

Shares held after transaction 118,729.952 shares Directly owned Halliburton common stock following the August 19, 2026 sale

Option exercise price $49.61 Option to buy common stock, 12,090 underlying shares, expiring January 2, 2028

Option underlying shares 12,090 shares Underlying common shares for options with $49.61 exercise price

Option exercise price $55.68 Option to buy common stock, 3,722 underlying shares, expiring January 3, 2027

Option underlying shares 3,722 shares Underlying common shares for options with $55.68 exercise price

Key Terms

Rule 10b5-1 trading plan, weighted average price, Option to Buy Common Stock

3 terms

Rule 10b5-1 trading plan regulatory

"The sale was effected pursuant to a Rule 10b5-l trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Option to Buy Common Stock financial

"security_title: "Option to Buy Common Stock""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did HAL report for Jeffrey Shannon Slocum on this Form 4?

Jeffrey Shannon Slocum reported a sale of 52,572 shares of Halliburton common stock on August 19, 2026 in an open-market or private transaction, at a weighted average price of $35.09 per share.

Was the August 19, 2026 HAL insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted by Jeffrey Shannon Slocum on May 8, 2026.

What price range did the HAL shares sell for in the August 19, 2026 transaction?

The filing reports a weighted average sale price of $35.09 per share, with the individual transactions executed at prices ranging from $35.00 to $35.43 per share.

How many HAL shares does Jeffrey Shannon Slocum hold after the reported sale?

After the August 19, 2026 sale, Jeffrey Shannon Slocum directly held 118,729.952 shares of Halliburton common stock, as reported in the Form 4.

What stock options on HAL common stock does Jeffrey Shannon Slocum report holding?

He reports options to buy Halliburton common stock with exercise prices of $49.61 for 12,090 underlying shares expiring January 2, 2028, and $55.68 for 3,722 underlying shares expiring January 3, 2027.

What is Jeffrey Shannon Slocum’s role at HAL mentioned in the Form 4?

Jeffrey Shannon Slocum is identified as a Director, EVP and COO of Halliburton Company in the Form 4.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/20/2026 - 04:53 PM Accepted by SEC EDGAR 08/20/2026 - 04:52 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Slocum Jeffrey Shannon

(Last) (First) (Middle)

3000 N. SAM HOUSTON PARKWAY E.

(Street)

HOUSTON TEXAS 77032

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
HALLIBURTON CO [ HAL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Director, EVP and COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/19/2026		S(1)		52,572	D	$35.09(2)	118,729.952	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to Buy Common Stock	$49.61							01/02/2018	01/02/2028	Common Stock	12,090		12,090	D
Option to Buy Common Stock	$55.68							01/03/2017	01/03/2027	Common Stock	3,722		3,722	D

Explanation of Responses:

1. The sale was effected pursuant to a Rule 10b5-l trading plan adopted by the Reporting Person on May 8, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.00 to $35.43, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

Remarks:

	/s/ Sarah I. Rubenfeld, by Power of Attorney	08/20/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)