GAMBILL MARK M (CIK 1170913) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Buy NEU (157 shares), Buy NEU (144 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | NEWMARKET CORP (NEU) | Director | Buy | 157 | $0 |
| 2025-07-01 | NEWMARKET CORP (NEU) | Director | Buy | 144 | $0 |
Source: SEC Form 4 filings · as of 2026-07-01