The largest purchase of all time was on 2018-08-13 and amounted to 18230 shares of Dawson Geophysical Company for $104,984.
The largest sale of all time was on 2006-05-02 and amounted to 27186 shares of Dawson Geophysical Company for $407,899.
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| 2018-08-15 | Dawson Geophysical Company DWSN | director | 16,600 0.0697% | $5.62 | $93,300 | -38.61% | ||
| 2018-08-13 | Dawson Geophysical Company DWSN | director | 18,230 0.0752% | $5.76 | $104,984 | -40.96% | ||
| 2018-08-08 | Dawson Geophysical Company DWSN | director | 50 0.0002% | $5.80 | $290 | -41.47% | ||
| 2018-08-06 | Dawson Geophysical Company DWSN | director | 1,720 0.0071% | $5.80 | $9,976 | -39.97% | ||
| 2017-12-15 | Dawson Geophysical Company DWSN | director | 195 0.0008% | $4.68 | $913 | +32.29% | ||
| 2017-12-12 | Dawson Geophysical Company DWSN | director | 5,000 0.0218% | $4.75 | $23,750 | +31.91% | ||
| 2017-12-11 | Dawson Geophysical Company DWSN | director | 5,000 0.0222% | $4.90 | $24,500 | +30.28% | ||
| 2017-05-30 | Dawson Geophysical Company DWSN | director | 10,000 0.0441% | $3.90 | $39,000 | +28.2% | ||
| 2017-05-18 | Dawson Geophysical Company DWSN | director | 5,000 0.0221% | $4.05 | $20,250 | +21.54% | ||
| 2017-05-17 | Dawson Geophysical Company DWSN | director | 5,000 0.0223% | $4.20 | $21,000 | +17.79% | ||
| 2017-05-15 | Dawson Geophysical Company DWSN | director | 4,833 0.0213% | $4.50 | $21,749 | +8.43% | ||
| 2017-05-12 | Dawson Geophysical Company DWSN | director | 167 0.0007% | $4.50 | $752 | +7.51% | ||
| 2012-07-03 | Sale | Dawson Geophysical Company DWSN | director | 10,609 0.0073% | $10.47 | $111,119 | -15.07% | |
| 2012-06-20 | Sale | Dawson Geophysical Company DWSN | director | 988 0.0007% | $10.44 | $10,315 | -9.92% | |
| 2012-06-19 | Sale | Dawson Geophysical Company DWSN | director | 30,503 0.0211% | $10.33 | $315,096 | -13.94% | |
| 2012-06-14 | Sale | Dawson Geophysical Company DWSN | director | 4,000 0.0027% | $10.10 | $40,400 | -8.4% | |
| 2012-06-12 | Sale | Dawson Geophysical Company DWSN | director | 2,500 0.0016% | $10.07 | $25,175 | -9.95% | |
| 2012-06-11 | Sale | Dawson Geophysical Company DWSN | director | 500 0.0003% | $10.07 | $5,035 | -8.78% | |
| 2012-05-10 | Sale | Dawson Geophysical Company DWSN | director | 950 0.0006% | $10.65 | $10,118 | -14.87% | |
| 2012-05-07 | Sale | Dawson Geophysical Company DWSN | director | 5,437 0.0034% | $10.73 | $58,339 | -15.75% |