ArcBest (NASDAQ: ARCB) director sells 5,000 shares in two trades

Rhea-AI Filing Summary

ArcBest Corp. director Janice E. Stipp reported selling a total of 5,000 shares of common stock on August 6, 2026, in transactions coded as open market or private. The sales included 1,400 shares at $137.46 per share and 3,600 shares at a weighted average of $139.20, with trades between $139.093 and $139.330 per share. The report’s Rule 10b5-1 trading plan checkbox was not marked.

Insider Trade Summary

Net Seller: 5,000 shares

Net Sell 2 txns

Insider Stipp Janice E

Role Director

Sold 5,000 shs ($694K)

Type	Security	Shares	Price	Value
Sale	Common Stock, par value $0.01 per share	1,400	$137.46	$192K
Sale	Common Stock, par value $0.01 per share F1	3,600	$139.20	$501K

Holdings After Transaction: Common Stock, par value $0.01 per share — 18,035 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.093 to $139.330, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

Key Figures

Total shares sold: 5,000 shares First sale volume: 1,400 shares First sale price: $137.46 per share +3 more

6 metrics

Total shares sold 5,000 shares Common shares sold by director Janice E. Stipp on August 6, 2026

First sale volume 1,400 shares Common shares sold at a single stated price

First sale price $137.46 per share Price for 1,400-share sale of ArcBest common stock

Second sale volume 3,600 shares Common shares sold at a weighted average price

Second sale weighted average price $139.20 per share Weighted average price for 3,600-share sale

Second sale price range $139.093–$139.330 per share Range of individual trade prices in the 3,600-share sale

Key Terms

weighted average price, Rule 10b5-1, open market or private transaction

3 terms

weighted average price financial

"The price reported is a weighted average price for multiple trades"

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.

Rule 10b5-1 regulatory

"The filing’s Rule 10b5-1 trading plan checkbox was not marked"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open market or private transaction financial

"Transaction code S describes a sale in open market or private transaction"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/07/2026 - 03:00 PM Accepted by SEC EDGAR 08/07/2026 - 03:00 PM Learn about SEC filing dates

FAQ

What insider transaction did ArcBest (ARCB) report on August 6, 2026?

ArcBest reported that director Janice E. Stipp sold 5,000 shares of common stock on August 6, 2026. The Form 4 lists two sale transactions, each coded as a sale in open market or private transaction involving ArcBest common stock, par value $0.01 per share.

How many ArcBest (ARCB) shares did Janice E. Stipp sell and in what lots?

Janice E. Stipp sold a total of 5,000 ArcBest shares. The Form 4 shows two separate sales: one for 1,400 shares and another for 3,600 shares, both involving ArcBest common stock, par value $0.01 per share, on the same trade date.

At what prices were the ArcBest (ARCB) shares sold in this Form 4?

The first sale of 1,400 shares occurred at $137.46 per share. The second sale of 3,600 shares used a weighted average price of $139.20, with individual trades executed at prices ranging from $139.093 to $139.330 per share, as described in the footnote.

What does the weighted average price footnote mean in the ArcBest (ARCB) Form 4?

The footnote explains that the reported $139.20 price is a weighted average for multiple trades. Those 3,600 shares were sold in several transactions, with individual prices ranging from $139.093 to $139.330, and detailed trade-by-trade information is available upon request to the issuer or SEC staff.

Was the ArcBest (ARCB) insider sale reported under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 trading plan checkbox was not marked. This indicates the company did not identify these August 6, 2026 transactions as being made pursuant to a Rule 10b5-1 trading plan in this Form 4 report.

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^*

Stipp Janice E

(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 /TX/ [ ARCB ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026

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	08/06/2026		S		1,400	D	$137.46	21,635	D
Common Stock, par value $0.01 per share	08/06/2026		S		3,600	D	$139.2(1)	18,035	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:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.093 to $139.330, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

	/s/ Janice E. Stipp	08/07/2026
	** 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)