Last 12 months
Inside the activity.
0 purchase rows · 0 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 30, 2016 Filed Oct 4, 2016 15:09 UTC |
HOOVER GARY MDirector
|
GrantDawson Geophysical Company-Common Stock $0.01 par value | 1,768 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-16-148431 · a4.xml · nonDerivative · entry 1 HOOVER GARY M · CIK 0001212387 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 41,223 Read SEC document |
| September 30, 2016 Filed Oct 4, 2016 15:08 UTC |
COOPER CRAIG WDirector
|
GrantDawson Geophysical Company-Common Stock $0.01 par value | 1,664 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-16-148430 · a4.xml · nonDerivative · entry 1 COOPER CRAIG W · CIK 0001506912 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 44,960 Read SEC document |
| September 30, 2016 Filed Oct 4, 2016 15:07 UTC |
BARRETT WILLIAM JDirector
|
GrantDawson Geophysical Company-Common Stock $0.01 par value | 1,716 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-16-148428 · a4.xml · nonDerivative · entry 1 BARRETT WILLIAM J · CIK 0000923415 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 648,932 Read SEC document |
| September 16, 2016 Filed Sep 19, 2016 20:38 UTC |
MCINNES ALLEN TDirector
|
SaleDawson Geophysical Company-Common Stock $0.01 par value | 2,126 | $7.01 | $14,910.49 |
DisclosureSEC source: 0001104659-16-145463 · a4.xml · nonDerivative · entry 2 MCINNES ALLEN T · CIK 0001182279 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 348,985 Read SEC document |
| September 16, 2016 Filed Sep 19, 2016 20:38 UTC |
MCINNES ALLEN TDirector
|
SaleDawson Geophysical Company-Common Stock $0.01 par value | 1,864 | $7.02 | $13,081.55 |
DisclosureSEC source: 0001104659-16-145463 · a4.xml · nonDerivative · entry 1 MCINNES ALLEN T · CIK 0001182279 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 351,111 Read SEC document |
| December 01, 2015 Filed Apr 4, 2017 19:13 UTC Amendment |
BARRETT WILLIAM JDirector
|
GrantDawson Geophysical Company-Common Stock $0.01 par value | 7,947 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-17-021330 · a4a.xml · nonDerivative · entry 1 BARRETT WILLIAM J · CIK 0000923415 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 643,192 F1 · balance_after: On February 11, 2015, Dawson Operating Company, previously known as Dawson Geophysical Company (the "Predecessor"), merged into a subsidiary of Dawson Geophysical Company, previously known as TGC Industries, Inc. (the "Issuer") (the "Merger"). In connection with the Merger, each share of the Predecessor's common stock, par value $0.33 1/3 per share, was converted into the right to receive 1.760 shares of the Issuer's common stock, par value $0.01 per share, after giving effect to a 1-for-3 reverse stock split of the Issuer's common stock, which occurred immediately prior to the Merger. On the effective date of the Merger, the closing price of the Predecessor's common stock was $10.23, and the closing price of the Issuer's common stock was $1.95, before giving effect to the 1-for-3 reverse stock split of the Issuer's common stock. F2 · balance_after: This Form 4/A amends the Form 4 filed by the Reporting Person on December 3, 2015, as amended on March 1, 2016. The amount of securities directly beneficially owned by the Reporting Person was incorrectly reported as 643,031 shares of common stock, which mistakenly excluded 161shares of common stock. Read SEC document |
| February 11, 2015 Filed Mar 14, 2017 18:41 UTC Amendment |
Vander Ploeg Mark ADirector
|
GrantDawson Geophysical Company-Common Stock $0.01 par value | 2,764 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-17-016346 · a4a.xml · nonDerivative · entry 1 Vander Ploeg Mark A · CIK 0001604461 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,764 F2 · shares: This Form 4/A amends the Form 4 filed by the Reporting Person on February 12, 2015. The amount of securities beneficially owned by the Reporting Person was incorrectly reported as 11,124 shares of common stock, which mistakenly included 8,360 shares of common stock. F1 · price: On February 11, 2015, Dawson Operating Company, previously known as Dawson Geophysical Company (the "Predecessor"), merged into a subsidiary of Dawson Geophysical Company, previously known as TGC Industries, Inc. (the "Issuer") (the "Merger"). In connection with the Merger, each share of the Predecessor's common stock, par value $0.33 1/3 per share, was converted into the right to receive 1.760 shares of the Issuer's common stock, par value $0.01 per share, after giving effect to a 1-for-3 reverse stock split of the Issuer's common stock, which occurred immediately prior to the Merger. On the effective date of the Merger, the closing price of the Predecessor's common stock was $10.23, and the closing price of the Issuer's common stock was $1.95, before giving effect to the 1-for-3 reverse stock split of the Issuer's common stock. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.