Dawson Geophysical Co
DWSN- Exchange
- Nasdaq
- Industry
- Oil & Gas Field Exploration Services
- SEC CIK
- 0000799165
No open-market purchases or sales by Dawson Geophysical Co insiders were filed in the last 90 days; 39 institutions reported holding it in 13F filings for Q2 2026, worth $12.5M in total; no superinvestor holds it.
Holders of 5% or more of DWSN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Dawson Geophysical Co, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Wilks Dan H. | 13D/A | 79.42%24.7M shares | – | Oct 29, 20251 filing | Oct 29, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
1 Schedule 13D or 13G filing on Dawson Geophysical Co, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Oct 29, 20257:22 PM ET | Wilks Dan H.and 4 others | 13D/A | 79.42%24.7M shares | – | Oct 27, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Dawson Geophysical Co shares.
No Form 144 notices for Dawson Geophysical Co are on file.