Comparable stake leader
Farris Wilks
SEC ownership of DAWSON GEOPHYSICAL CO
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000799165.
Disclosed value leader
Farris Wilks
Comparable rows
2/49
Latest evidence
27 Oct 2026
- Public ticker
- DWSN on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Farris Wilks
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
2 of 49
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Farris Wilks
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
27 Oct 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000799165
- Issuer location
- Midland, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of DAWSON GEOPHYSICAL CO (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Farris Wilks
Disclosed value leader
Farris Wilks
Comparable rows
2/49
Latest evidence
27 Oct 2026
13D/G
3/4/5
13F
Lead comparable stake: 79%
47 rows are not safely comparable across share classes.
13D/G row: Farris Wilks
Showing 1-8 of 49 holder rows.
Quick read
Farris Wilks leads the comparable SEC ownership view at 79%.
2 of 49 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Farris Wilks's linked filing trail.
Comparable ownership
Top 2
Farris Wilks
79%
Dan H. Wilks
79%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 49 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Farris Wilks |
13D/G
Dan Wilks
|
79%
Reported 13D/G
· 31 Dec 2025
|
$48,331,142
24,658,746 shares
|
$0 | 31 Dec 2025 |
| Dan H. Wilks |
13D/G
Dan Wilks
|
79%
Reported 13D/G
· 27 Oct 2025
|
$43,399,393
24,658,746 shares
|
$0 | 27 Oct 2025 |
| Wilks Brothers, LLC |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$41,835,462
49,218,190 shares
mixed-class rows
|
— | 13 Sep 2023 |
| GRACE & WHITE INC /NY |
13F
Company
|
—
denominator unverified
|
$4,175,327
702,917 shares
|
— | 30 Jun 2026 |
| RBF Capital, LLC |
13F
Company
|
—
denominator unverified
|
$2,517,354
423,797 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$931,849
156,877 shares
|
— | 30 Jun 2026 |
| GABELLI FUNDS LLC |
13F
Company
|
—
denominator unverified
|
$862,488
145,200 shares
|
— | 30 Jun 2026 |
| MARSHALL WACE, LLP |
13F
Company
|
—
denominator unverified
|
$515,575
86,797 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 07 Nov 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to DAWSON GEOPHYSICAL CO. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Wilks Brothers, LLC
Net 12M change
$0
Latest report
27 Oct 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Wilks Brothers, LLC | Director, 10%+ Owner | $41,835,462 | Mixed | 13 Sep 2023 | ||
| William Anthony Clark | CEO & President | $389,693 | Median | 27 Oct 2026 | ||
| Ray L. Mays | EVP & Chief Operating Officer | $280,489 | Median | 27 Oct 2026 | ||
| Sergei Krylov | Director | $37,791 | Mixed | 16 May 2025 | ||
| Ian M. Shaw | Chief Financial Officer | $27,000 | Mixed | 15 Aug 2025 | ||
| C. Ray Tobias | EVP, Chief Operating Officer | Mixed | 16 Aug 2022 | |||
| Ted R. North | Director | Mixed | 18 Jan 2022 | |||
| Craig W. Cooper | Director | Mixed | 18 Jan 2022 | |||
| Mark A. Vander Ploeg | Director | Mixed | 18 Jan 2022 | |||
| Matthew Wilks | Director | Mixed | 18 Jan 2022 | |||
| Bruce Franklin Bradley | Director | Mixed | 01 Oct 2024 | |||
| Jose Carlos Fernandes | Director | Mixed | 01 Oct 2024 | |||
| Farris Wilks | Director, 10%+ Owner | Mixed | 31 Dec 2025 | |||
| Stephen C. Jumper | President/CEO | Mixed | 16 Aug 2022 | |||
| Albert S. Conly | Director | Mixed | 01 Oct 2024 | |||
| James K. Brata | EVP, Chief Financial Officer | Mixed | 16 Aug 2022 | |||
| Michael L. Klofas | Director | Mixed | 18 Jan 2022 |
Recent insider transactions for DAWSON GEOPHYSICAL CO
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Ray L. Mays | DWSN | Dawson Geophysical Company-Common Stock $0.01 par value | Tax liability | -7.47% | -8,116 | 100,534 | 27 Oct 2026 | Direct | ||
| William Anthony Clark | DWSN | Dawson Geophysical Company-Common Stock $0.01 par value | Tax liability | -8.02% | -12,175 | 139,675 | 27 Oct 2026 | Direct | ||
| Ray L. Mays | DWSN | Dawson Geophysical Company-Common Stock $0.01 par value | Award | 0.14% | 150 | 108,650 | 30 Jun 2026 | Direct | ||
| Farris Wilks | DWSN | Common Stock, par value $0.01 per share | Other | -15,547,010 | $24,658,746 | 31 Dec 2025 | See Footnotes (4)(5). |
* marks a reported price that did not pass the local price check.