Johnson Mark B
Officer · DNOW
As of 2026-09-16, Johnson Mark B has 17 Form 4 transactions on record across 1 company — 12 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-10 | DNOW | Sale | 50,181 @ $16.79 | $843K | −14.7% of holding | 290,220 | Form 4 |
| 2026-08-10 | DNOW | Sale | 40,675 @ $16.79 | $683K | −14.0% of holding | 249,545 | Form 4 |
| 2026-08-10 | DNOW | Sale | 21,985 @ $16.79 | $369K | −7.0% of holding | 290,220 | Form 4 |
14 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-10 | DNOW | Option exercise | 50,181 | 340,401 | Form 4 |
| 2026-08-10 | DNOW | Option exercise | 21,985 | 312,205 | Form 4 |
| 2026-08-10 | DNOW | Option exercise | 21,985 | 0 | Form 4 |
| 2026-08-10 | DNOW | Option exercise | 50,181 | 0 | Form 4 |
| 2026-02-23 | DNOW | Award / grant | 61,674 | 290,220 | Form 4 |
| 2026-02-20 | DNOW | Withheld for tax | 12,264 | 215,811 | Form 4 |
| 2026-02-20 | DNOW | Withheld for tax | 8,264 | 228,546 | Form 4 |
| 2026-02-20 | DNOW | Award / grant | 20,999 | 236,810 | Form 4 |
| 2026-02-20 | DNOW | Award / grant | 20,999 | 236,810 | Form 4 |
| 2025-02-25 | DNOW | Award / grant | 33,390 | 228,075 | Form 4 |
| 2025-02-22 | DNOW | Withheld for tax | 19,816 | 194,685 | Form 4 |
| 2025-02-22 | DNOW | Withheld for tax | 16,246 | 164,147 | Form 4 |
| 2025-02-22 | DNOW | Award / grant | 50,354 | 214,501 | Form 4 |
| 2025-02-22 | DNOW | Award / grant | 50,354 | 214,501 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.