Halliburton (NYSE: HAL) insider sells stock under 10b5-1 plan

Rhea-AI Filing Summary

HALLIBURTON CO (HAL) director and executive officer Jeffrey Shannon Slocum reported a sale of 16,121 shares of Common Stock on August 18, 2026 at a weighted average price of $35.083 per share, under a Rule 10b5-1 trading plan adopted on May 8, 2026. After this transaction, he directly holds 171,301.952 shares of Halliburton common stock and retains employee stock options over additional shares.

Insider Trade Summary 10b5-1

Net Seller: 16,121 shares

Net Sell 3 txns

Insider Slocum Jeffrey Shannon

Role Director, EVP and COO

Sold 16,121 shs ($566K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	16,121	$35.083	$566K
holding	Option to Buy Common Stock	--	--	--
holding	Option to Buy Common Stock	--	--	--

Holdings After Transaction: Common Stock — 171,301.952 shares (Direct); Option to Buy Common Stock — 15,812 shares (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 $35.255, 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: 16,121 shares Weighted Average Sale Price: $35.083 per share Sale Price Range: $35.00–$35.255 per share +5 more

8 metrics

Shares Sold 16,121 shares Common Stock sale on August 18, 2026 by Jeffrey Shannon Slocum

Weighted Average Sale Price $35.083 per share Average price for 16,121 HAL shares sold on August 18, 2026

Sale Price Range $35.00–$35.255 per share Range of individual trade prices within the reported sale

Shares Held After Transaction 171,301.952 shares Direct HAL Common Stock ownership following the sale

Option Exercise Price $49.61 per share Option to buy 12,090 HAL shares expiring January 2, 2028

Underlying Shares for $49.61 Options 12,090 shares Common Stock underlying options expiring January 2, 2028

Option Exercise Price $55.68 per share Option to buy 3,722 HAL shares expiring January 3, 2027

Underlying Shares for $55.68 Options 3,722 shares Common Stock underlying options expiring January 3, 2027

Key Terms

Rule 10b5-l trading plan, weighted average price, underlying security

3 terms

Rule 10b5-l trading plan financial

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

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.

underlying security financial

"underlying_security_title": "Common Stock""

FAQ

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

Jeffrey Shannon Slocum reported selling 16,121 shares of Halliburton (HAL) Common Stock on August 18, 2026. The sale was executed at a weighted average price of $35.083 per share, with individual trades occurring between $35.00 and $35.255.

Was the recent HAL insider sale by Jeffrey Shannon Slocum under a 10b5-1 trading plan?

Yes. The filing states the sale was made pursuant to a Rule 10b5-1 trading plan adopted by Jeffrey Shannon Slocum on May 8, 2026. This indicates the trade followed a pre-established plan rather than discretionary market timing.

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

After the transaction, Jeffrey Shannon Slocum directly holds 171,301.952 shares of Halliburton (HAL) Common Stock. This post-transaction balance reflects his remaining direct equity stake following the 16,121-share sale disclosed in the Form 4.

What price range did the HAL shares sell for in Jeffrey Shannon Slocum’s transaction?

The 16,121 Halliburton (HAL) shares were sold at prices ranging from $35.00 to $35.255 per share. The Form 4 reports a weighted average sale price of $35.083, with full trade-by-trade detail available upon request to the company or the SEC.

What stock options on HAL does Jeffrey Shannon Slocum still hold according to this Form 4?

Jeffrey Shannon Slocum holds options to buy 12,090 HAL shares at $49.61 expiring January 2, 2028, and options on 3,722 shares at $55.68 expiring January 3, 2027. These options are reported as direct holdings in the derivative securities section.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/19/2026 - 03:21 PM Accepted by SEC EDGAR 08/19/2026 - 03:21 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)
08/18/2026

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	08/18/2026		S(1)		16,121	D	$35.083(2)	171,301.952	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 $35.255, 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	08/19/2026
	** 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)