Mark B Johnson

Insider

First SEC filing: Feb. 16, 2018 · Latest: Feb. 16, 2018

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

DNOW selling Aug. 10, 2026

Insider transactions

0 buys (P) 3 sells (S) Net: $-1,894,600 + 41 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

41 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 10, 2026	DNOW	M	21,985	$9.53	$209,517	312,205 Direct	+7.58%	Acquired	67.4% (price as of 2026-08-19)
Aug. 10, 2026	DNOW	S	21,985	$16.79	$369,128	290,220 Direct	-7.04%	Disposed	-5.0% (price as of 2026-08-19)
Aug. 10, 2026	DNOW	M	50,181	$10.26	$514,857	340,401 Direct	+17.29%	Acquired	55.5% (price as of 2026-08-19)
Aug. 10, 2026	DNOW	S	50,181	$16.79	$842,539	290,220 Direct	-14.74%	Disposed	-5.0% (price as of 2026-08-19)
Aug. 10, 2026	DNOW	S	40,675	$16.79	$682,933	249,545 Direct	-14.02%	Disposed	-5.0% (price as of 2026-08-19)
Aug. 10, 2026	DNOW	M	21,985	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Aug. 10, 2026	DNOW	M	50,181	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Feb. 23, 2026	DNOW	A	61,674	—	—	290,220 Direct	+26.99%	Acquired	(price as of 2026-08-19)
Feb. 20, 2026	DNOW	F	8,264	$13.23	$109,333	228,546 Direct	-3.49%	Disposed	20.6% (price as of 2026-08-19)
Feb. 20, 2026	DNOW	A	20,999	—	—	236,810 Direct	+9.73%	Acquired	(price as of 2026-08-19)
Feb. 20, 2026	DNOW	F	12,264	$13.23	$162,253	215,811 Direct	-5.38%	Disposed	20.6% (price as of 2026-08-19)
Feb. 25, 2025	DNOW	A	33,390	—	—	228,075 Direct	+17.15%	Acquired	(price as of 2026-08-19)
Feb. 22, 2025	DNOW	F	19,816	$17.43	$345,393	194,685 Direct	-9.24%	Disposed	-8.5% (price as of 2026-08-19)
Feb. 22, 2025	DNOW	A	50,354	—	—	214,501 Direct	+30.68%	Acquired	(price as of 2026-08-19)
Feb. 22, 2025	DNOW	F	16,246	$17.43	$283,168	164,147 Direct	-9.01%	Disposed	-8.5% (price as of 2026-08-19)
May 14, 2024	DNOW	M	47,015	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 14, 2024	DNOW	S	47,015	$13.50	$634,702	180,393 Direct	-20.67%	Disposed	18.2% (price as of 2026-08-19)
May 14, 2024	DNOW	M	47,015	$9.90	$465,448	227,408 Direct	+26.06%	Acquired	61.2% (price as of 2026-08-19)
Feb. 23, 2024	DNOW	F	26,214	$13.29	$348,384	180,393 Direct	-12.69%	Disposed	20.1% (price as of 2026-08-19)
Feb. 23, 2024	DNOW	A	64,963	$13.29	$863,358	206,607 Direct	+45.86%	Acquired	20.1% (price as of 2026-08-19)
Feb. 23, 2024	DNOW	F	11,343	$13.29	$150,748	141,644 Direct	-7.41%	Disposed	20.1% (price as of 2026-08-19)
Feb. 21, 2024	DNOW	A	34,589	—	—	152,987 Direct	+29.21%	Acquired	(price as of 2026-08-19)
Feb. 21, 2023	DNOW	F	5,958	$12.42	$73,998	118,398 Direct	-4.79%	Disposed	28.5% (price as of 2026-08-19)
Feb. 21, 2023	DNOW	A	14,368	$12.42	$178,451	124,356 Direct	+13.06%	Acquired	28.5% (price as of 2026-08-19)
Feb. 21, 2023	DNOW	F	3,938	$12.42	$48,910	109,988 Direct	-3.46%	Disposed	28.5% (price as of 2026-08-19)
Feb. 20, 2023	DNOW	A	26,923	—	—	113,926 Direct	+30.94%	Acquired	(price as of 2026-08-19)
Feb. 22, 2022	DNOW	A	36,383	—	—	87,003 Direct	+71.87%	Acquired	(price as of 2026-08-19)
Feb. 19, 2022	DNOW	F	1,435	$9.69	$13,905	50,620 Direct	-2.76%	Disposed	64.7% (price as of 2026-08-19)
Feb. 19, 2022	DNOW	A	3,212	$9.69	$31,124	52,055 Direct	+6.58%	Acquired	64.7% (price as of 2026-08-19)
Feb. 19, 2022	DNOW	F	2,299	$9.69	$22,277	48,843 Direct	-4.50%	Disposed	64.7% (price as of 2026-08-19)
Feb. 23, 2021	DNOW	A	50,181	—	—	50,181 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 23, 2021	DNOW	A	24,366	—	—	51,142 Direct	+91.00%	Acquired	(price as of 2026-08-19)
Feb. 20, 2021	DNOW	F	2,190	$9.37	$20,520	26,776 Direct	-7.56%	Disposed	70.3% (price as of 2026-08-19)
Feb. 20, 2021	DNOW	A	7,384	$9.37	$69,188	28,966 Direct	+34.21%	Acquired	70.3% (price as of 2026-08-19)
Feb. 20, 2021	DNOW	F	2,373	$9.37	$22,235	21,582 Direct	-9.91%	Disposed	70.3% (price as of 2026-08-19)
Feb. 21, 2020	DNOW	A	21,985	—	—	21,985 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 21, 2020	DNOW	F	645	$9.53	$6,147	23,955 Direct	-2.62%	Disposed	67.4% (price as of 2026-08-19)
Feb. 21, 2020	DNOW	A	8,263	—	—	24,600 Direct	+50.58%	Acquired	(price as of 2026-08-19)
Feb. 19, 2019	DNOW	A	5,147	—	—	16,337 Direct	+46.00%	Acquired	(price as of 2026-08-19)
Feb. 19, 2019	DNOW	A	10,472	—	—	10,472 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 19, 2019	DNOW	A	5,147	—	—	16,337 Direct	-23.96%	Disposed	(price as of 2026-08-19)
Feb. 19, 2019	DNOW	F	714	$15.30	$10,924	11,190 Direct	-6.00%	Disposed	4.3% (price as of 2026-08-19)
Feb. 24, 2018	DNOW	F	407	$10.16	$4,135	11,904 Direct	-3.31%	Disposed	57.0% (price as of 2026-08-19)
Feb. 20, 2018	DNOW	A	47,015	—	—	47,015 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 20, 2018	DNOW	A	8,003	—	—	12,311 Direct	+185.77%	Acquired	(price as of 2026-08-19)

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.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Aug. 10, 2026	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (21,985)	$9.53	Feb. 21, 2027	21,985	Disposed
Aug. 10, 2026	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (50,181)	$10.26	Feb. 23, 2028	50,181	Disposed
May 14, 2024	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (47,015)	$9.90	Feb. 20, 2025	47,015	Disposed
Feb. 23, 2021	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (50,181)	$10.26	Feb. 23, 2028	50,181	Acquired
Feb. 21, 2020	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (21,985)	$9.53	Feb. 21, 2027	21,985	Acquired
Feb. 19, 2019	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,472)	$15.30	Feb. 19, 2026	10,472	Acquired
Feb. 20, 2018	DNOW	Non-Qualified Stock Option (Right to Buy)	Common Stock (47,015)	$9.90	Feb. 20, 2025	47,015	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 7 holdings

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

Date	Ticker	Security	Shares	Ownership
Feb. 16, 2018	DNOW	Common Stock	4,308	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (2,185)	2,185	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (2,413)	2,413	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (3,018)	3,018	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (9,500)	9,500	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (11,000)	11,000	Direct
Feb. 16, 2018	DNOW	Non-Qualified Stock Option (right to buy)→ Common Stock (13,000)	13,000	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

DNOW

CFO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2022	—	—	—	—	—	—	—	—
2021	—	—	—	—	—	—	—	—
2020	$324,923	—	—	—	—	—	$6,309	$599,243

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.