Dawson Geophysical COO surrenders 8,116 shares

Available on EDGAR 10/29/2026 - 04:03 PM EDT Accepted by SEC EDGAR 10/29/2026 - 04:03 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Dawson Geophysical Co. (DWSN) EVP & Chief Operating Officer Ray L. Mays surrendered 8,116 shares on October 27, 2026, to satisfy tax withholding obligations tied to the vesting of restricted stock issued under the company’s 2006 Stock and Performance Incentive Plan. The reported price was $2.09 per share; afterward, Mays directly held 100,534 shares.

Insider Trade Summary

Tax Withholding: 8,116 shares

Tax Withholding 1 txn

Insider Mays Ray L

Role EVP & Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Dawson Geophysical Company-Common Stock $0.01 par value F1	8,116	$2.09	$17K

Holdings After Transaction: Dawson Geophysical Company-Common Stock $0.01 par value — 100,534 shares (Direct)

Holdings Before and After: Dawson Geophysical Company-Common Stock $0.01 par value, 108,650 to 100,534 shares (Direct)

Footnotes (1)

1. F1. Represents the surrender of shares of Common Stock to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to the Reporting person under the Amended and Restated Dawson Geophysical Company 2006 Stock and Performance Incentive Plan.

Key Figures

Shares surrendered for tax withholding: 8,116 shares Reported price per share: $2.09 per share Direct shares held after transaction: 100,534 shares

3 metrics

Shares surrendered for tax withholding 8,116 shares October 27, 2026

Reported price per share $2.09 per share October 27, 2026 transaction

Direct shares held after transaction 100,534 shares After the October 27, 2026 transaction

Key Terms

restricted stock, tax withholding obligations, Stock and Performance Incentive Plan

3 terms

restricted stock financial

"vesting of restricted stock issued to the Reporting person"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

tax withholding obligations financial

"satisfy tax withholding obligations"

Stock and Performance Incentive Plan financial

"2006 Stock and Performance Incentive Plan"

FAQ

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

How many DWSN shares did the COO surrender for tax withholding?

Ray L. Mays, Dawson Geophysical Co.’s EVP & Chief Operating Officer, surrendered 8,116 shares on October 27, 2026, to satisfy tax withholding obligations tied to restricted-stock vesting. The reported price was $2.09 per share, and he directly held 100,534 shares afterward.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

Mays Ray L

(Last) (First) (Middle)

508 W. WALL STREET, SUITE 800

(Street)

MIDLAND TEXAS 79701

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
DAWSON GEOPHYSICAL CO [ DWSN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/27/2026

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
Dawson Geophysical Company-Common Stock $0.01 par value	10/27/2026		F		8,116(1)	D	$2.09	100,534	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. Represents the surrender of shares of Common Stock to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to the Reporting person under the Amended and Restated Dawson Geophysical Company 2006 Stock and Performance Incentive Plan.

	/s/ Ray Mays	10/29/2026
	** 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)