Mark B. Johnson

CIK: 0001730024

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (23.1%)

Position reduction

Option Exercises (M)2 (15.4%)

Derivative conversions

Awards (A)4 (30.8%)

Compensation grants

Other (G, F, J, C, D, …)4 (30.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

DNOW

DNOW Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (13 total)

DNOW
DNOW Inc.
Aug 10, 2026
Sale(S)
Direct
22K shares at avg. $16.79$369K
DNOW
DNOW Inc.
Aug 10, 2026
Sale(S)
Direct
50.2K shares at avg. $16.79$843K
DNOW
DNOW Inc.
Aug 10, 2026
Exercise(M)
Direct
22K shares at avg. $9.53$210K
DNOW
DNOW Inc.
Aug 10, 2026
Exercise(M)
Direct
50.2K shares at avg. $10.26$515K
DNOW
DNOW Inc.
Aug 10, 2026
Sale(S)
Direct
40.7K shares at avg. $16.79$683K
DNOW
DNOW Inc.
Feb 23, 2026
Award(A)
Direct
61.7K shares-
DNOW
DNOW Inc.
Feb 20, 2026
Award(A)
Direct
21K shares-
DNOW
DNOW Inc.
Feb 20, 2026
Tax Payment(F)
Direct
12.3K shares at avg. $13.23$162K
DNOW
DNOW Inc.
Feb 20, 2026
Tax Payment(F)
Direct
8.3K shares at avg. $13.23$109K
DNOW
DNOW Inc.
Feb 25, 2025
Award(A)
Direct
33.4K shares-
DNOW
DNOW Inc.
Feb 22, 2025
Tax Payment(F)
Direct
19.8K shares at avg. $17.43$345K
DNOW
DNOW Inc.
Feb 22, 2025
Award(A)
Direct
50.4K shares-
DNOW
DNOW Inc.
Feb 22, 2025
Tax Payment(F)
Direct
16.2K shares at avg. $17.43$283K

		Type	Shares	Price		Ownership
Aug 10, 2026	DNOW DNOW Inc.	Sale(S)	21,985	$16.79	$369,128	Direct
Aug 10, 2026	DNOW DNOW Inc.	Sale(S)	50,181	$16.79	$842,539	Direct
Aug 10, 2026	DNOW DNOW Inc.	Exercise(M)	21,985	$9.53	$209,517	Direct
Aug 10, 2026	DNOW DNOW Inc.	Exercise(M)	50,181	$10.26	$514,857	Direct
Aug 10, 2026	DNOW DNOW Inc.	Sale(S)	40,675	$16.79	$682,933	Direct
Feb 23, 2026	DNOW DNOW Inc.	Award(A)	61,674	-	$0	Direct
Feb 20, 2026	DNOW DNOW Inc.	Award(A)	20,999	-	$0	Direct
Feb 20, 2026	DNOW DNOW Inc.	Tax Payment(F)	12,264	$13.23	$162,253	Direct
Feb 20, 2026	DNOW DNOW Inc.	Tax Payment(F)	8,264	$13.23	$109,333	Direct
Feb 25, 2025	DNOW DNOW Inc.	Award(A)	33,390	-	-	Direct
Feb 22, 2025	DNOW DNOW Inc.	Tax Payment(F)	19,816	$17.43	$345,393	Direct
Feb 22, 2025	DNOW DNOW Inc.	Award(A)	50,354	-	-	Direct
Feb 22, 2025	DNOW DNOW Inc.	Tax Payment(F)	16,246	$17.43	$283,168	Direct

1-13 of 13 transactions

About Johnson Mark B

Johnson Mark B (SEC CIK 0001730024) files insider reports with the SEC as Officer of DNOW Inc. (DNOW).

Signal8 holds 5 ownership filings by Johnson Mark B, all Form 4s, filed between Feb 25, 2025 and Aug 12, 2026. Those filings report 13 transactions, from Feb 22, 2025 to Aug 10, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Johnson Mark B's filings is in HOUSTON, TX.

Recent filings by Johnson Mark B

Aug 10, 2026: Open-market sales of DNOW shares (2 lines, Form 4, code S).
Aug 10, 2026: Option exercises of DNOW shares (2 lines, Form 4, code M).
Aug 10, 2026: Open-market sale of DNOW shares (Form 4, code S).
Feb 23, 2026: Grant or award of DNOW shares (Form 4, code A).
Feb 20, 2026: Grant or award of DNOW shares (Form 4, code A).

Other insiders filing for DNOW Inc. (DNOW)

Chang Raymond W, VP and General Counsel
Cherechinsky David A, President and CEO
ALARIO RICHARD J, Director
JADIN RONALD L, Director
Bonno Terry, Director
COPPINGER PAUL M, Director

How to read Form 4 transaction codes