[Form 4] ARCBEST CORP /DE/ Insider Trading Activity

Rhea-AI Filing Summary

ArcBest President and CEO Seth Runser reported routine equity compensation activity. He received a grant of 10,150 shares of common stock, recorded at $0.00 per share as a stock award. In a separate transaction, 349 shares were disposed of to satisfy tax obligations. After these entries, he directly owns 30,457 shares of ArcBest common stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider RUNSER SETH

Role President & CEO, ArcBest

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	10,150	$0.00	--
Tax Withholding	Common Stock, par value $0.01 per share	349	$118.17	$41K

Holdings After Transaction: Common Stock, par value $0.01 per share — 30,457 shares (Direct, null)

Footnotes (1)

Key Figures

Stock award: 10,150 shares Tax-withholding shares: 349 shares Post-transaction holdings: 30,457 shares +1 more

4 metrics

Stock award 10,150 shares Grant/award acquisition of common stock at $0.00 per share

Tax-withholding shares 349 shares Shares delivered to satisfy tax liability at $118.17 per share

Post-transaction holdings 30,457 shares Common stock directly owned after reported transactions

Tax-withholding price $118.17/share Price used for 349-share tax-withholding disposition

Key Terms

tax-withholding disposition, grant, award, or other acquisition, Common Stock, par value $0.01 per share, Form 4

4 terms

tax-withholding disposition financial

"349 shares were disposed of to satisfy tax obligations"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

grant, award, or other acquisition financial

"He received a grant of 10,150 shares of common stock"

Common Stock, par value $0.01 per share financial

"Common Stock, par value $0.01 per share"

Form 4 regulatory

"What did ArcBest (ARCB) CEO Seth Runser report in this Form 4?"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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).

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^*

RUNSER SETH

(Last) (First) (Middle)

8401 MCCLURE DRIVE

(Street)

FORT SMITH ARKANSAS 72916

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ARCBEST CORP /DE/ [ ARCB ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO, ArcBest

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/05/2026

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, par value $0.01 per share	05/05/2026		A		10,150	A	$0	30,457	D
Common Stock, par value $0.01 per share	05/05/2026		F		349	D	$118.17	30,108	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

Explanation of Responses:

	/s/ Seth Runser	05/07/2026
	** 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)