Michael L Klofas

Insider

First SEC filing: May 9, 2018 · Latest: May 9, 2018

On this page

Insider at

0 buys (P) 0 sells (S) Net: $0 + 10 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 18, 2022	DWSN	D	39,651	$2.34	$92,783	0 Direct	-100.00%	Disposed	19.0% (price as of 2026-08-20)
Sept. 30, 2021	DWSN	A	2,988	—	—	39,651 Direct	+8.15%	Acquired	(price as of 2026-08-20)
June 30, 2021	DWSN	A	2,830	—	—	36,663 Direct	+8.36%	Acquired	(price as of 2026-08-20)
Dec. 31, 2019	DWSN	A	4,754	—	—	33,833 Direct	+16.35%	Acquired	(price as of 2026-08-20)
Sept. 30, 2019	DWSN	A	5,715	—	—	29,079 Direct	+24.46%	Acquired	(price as of 2026-08-20)
June 28, 2019	DWSN	A	4,613	—	—	23,364 Direct	+24.60%	Acquired	(price as of 2026-08-20)
March 29, 2019	DWSN	A	3,940	—	—	18,751 Direct	+26.60%	Acquired	(price as of 2026-08-20)
Dec. 31, 2018	DWSN	A	3,409	—	—	14,811 Direct	+29.90%	Acquired	(price as of 2026-08-20)
Sept. 28, 2018	DWSN	A	1,989	—	—	11,402 Direct	+21.13%	Acquired	(price as of 2026-08-20)
June 29, 2018	DWSN	A	1,013	$7.89	$7,993	9,413 Direct	+12.06%	Acquired	-64.7% (price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
May 9, 2018	DWSN	Dawson Geophysical Company-Common Stock $0.01 par value	8,000	Direct