Mark A. Vander Ploeg - Director at DAWSON GEOPHYSICAL CO

Issuer-level insider activity

Role
Director
Issuer ticker
DWSN on Nasdaq
Identity Names, identifiers, and filing context for this profile. 1 identity field
Entity type
Individual
Source evidence Original filing metadata and source links for verification. 1 source field
Source filing history
Open source filing history

No buys or sells have been reported by Mark A. Vander Ploeg since 17 Jul 2025

Reported holdings for Mark A. Vander Ploeg in DAWSON GEOPHYSICAL CO

Form 4 holding Director

DAWSON GEOPHYSICAL CO

Security class
Dawson Geophysical Company-Common Stock $0.01 par value
Shares / value
0
Estimated value
Report date
18 Jan 2022
Price
$1.75
Ownership
Direct
Form 4 holding Director

DAWSON GEOPHYSICAL CO

Security class
Dawson Geophysical Company-Common Stock $0.01 par value
Shares / value
0
Estimated value
Report date
18 Jan 2022
Price
$1.75
Ownership
Through the Hermosa Trust dated November 3, 2015.

Transaction history for Mark A. Vander Ploeg in DAWSON GEOPHYSICAL CO

Sym Class Transaction % SEC-reported value SEC-reported price Shares Shares after Date Ownership
* marks a reported price that did not pass the local price check.
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