Insider · CIK 0001604461

Vander Ploeg Mark A

Reports to the SEC for 2 companies · MENLO PARK, CA

sec.gov

Transactions

Companies

Filings

CIK

0001604461

Forms 4 and 5

Insider transactions

26 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2022-01-18	DWSNDAWSON GEOPHYSICAL COD Disposition to Issuer	Director	DDisposition to Issuer	−31.1K sh	$2.34	−$72.8K	0
2022-01-18	DWSNDAWSON GEOPHYSICAL COD Disposition to Issuer	Director	DDisposition to Issuer	−36.8K sh	$2.34	−$86.1K	0
2021-09-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,988 sh	—	—	31,099
2021-06-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,830 sh	—	—	28,111
2019-12-31	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+5,368 sh	—	—	25,281
2019-09-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+6,408 sh	—	—	19,913
2019-06-28	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+5,208 sh	—	—	13,505
2019-03-29	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+4,449 sh	—	—	8,297
2018-12-31	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+3,848 sh	—	—	40,640
2018-09-28	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,230 sh	—	—	36,792
2018-06-29	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+1,600 sh	$7.89	+$12.6K	34,562
2018-03-29	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+1,788 sh	—	—	31,393
2017-12-29	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,318 sh	—	—	29,605
2017-09-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,600 sh	—	—	27,287
2017-06-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,946 sh	—	—	24,687
2017-03-31	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,072 sh	—	—	21,741
2016-12-31	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+1,429 sh	—	—	28,029
2016-09-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+1,612 sh	—	—	26,600
2016-06-30	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+1,487 sh	—	—	24,988
2016-03-28	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,444 sh	—	—	23,501
2015-12-01	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+9,933 sh	—	—	21,057
2015-12-01	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+9,933 sh	—	—	21,057
2015-02-11	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+2,764 sh	—	—	2,764
2015-02-11	DWSNDAWSON GEOPHYSICAL COA Award	Director	AAward	+11.1K sh	—	—	0
2015-02-11	DAWSON OPERATING COD Disposition to Issuer	Director	DDisposition to Issuer	−6,321 sh	—	—	0
2014-12-01	DAWSON OPERATING COA Award	Director	AAward	+1,571 sh	—	—	6,321

Recent filings

Accepted (ET)
Jan 204
Vander Ploeg Mark A0001104659-22-005846
SEC(opens sec.gov)
Oct 14
Vander Ploeg Mark A0001104659-21-121779
SEC(opens sec.gov)
Jul 24
Vander Ploeg Mark A0001104659-21-088642
SEC(opens sec.gov)
Jan 24
Vander Ploeg Mark A0001104659-20-000472
SEC(opens sec.gov)
Oct 14
Vander Ploeg Mark A0001104659-19-052287
SEC(opens sec.gov)
Jul 14
Vander Ploeg Mark A0001104659-19-038663
SEC(opens sec.gov)
Apr 24
Vander Ploeg Mark A0001104659-19-019279
SEC(opens sec.gov)
Jan 34
Vander Ploeg Mark A0001104659-19-000384
SEC(opens sec.gov)
Oct 24
Vander Ploeg Mark A0001104659-18-060009
SEC(opens sec.gov)
Jul 24
Vander Ploeg Mark A0001104659-18-043607
SEC(opens sec.gov)
Apr 24
Vander Ploeg Mark A0001104659-18-021770
SEC(opens sec.gov)
Jan 24
Vander Ploeg Mark A0001104659-18-000252
SEC(opens sec.gov)
Oct 34
Vander Ploeg Mark A0001104659-17-060538
SEC(opens sec.gov)
Jul 54
DAWSON GEOPHYSICAL CO0001104659-17-043669
SEC(opens sec.gov)
Apr 34
DAWSON GEOPHYSICAL CO0001104659-17-021096
SEC(opens sec.gov)
Mar 144/A
DAWSON GEOPHYSICAL CO0001104659-17-016346
SEC(opens sec.gov)
Jan 34
DAWSON GEOPHYSICAL CO0001104659-17-000139
SEC(opens sec.gov)
Oct 44
DAWSON GEOPHYSICAL CO0001104659-16-148436
SEC(opens sec.gov)
Jul 14
DAWSON GEOPHYSICAL CO0001104659-16-130709
SEC(opens sec.gov)

Companies

Address

1360 ELDER AVENUE

MENLO PARK, CA, 94025