Mark M. Gambill

Companies

• NewMarket CorporationBoard member Jan 5, 2009 to now¹
• Speedway MotorsportsBoard member Jan 5, 2006 to Sep 19, 2019²
• Barings BDC, Inc.Board member Aug 12, 2009 to May 7, 2018³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• NewMarket Corporation NEU4,149 shares⁴$3.7M at $887.82Jul 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 1, 2026Granted 157 shares of NewMarket Corporation⁴
• Jul 1, 2025Granted 144 shares of NewMarket Corporation⁵
• Jul 1, 2024Granted 193 shares of NewMarket Corporation⁶
• Jul 3, 2023Granted 223 shares of NewMarket Corporation⁷
• Jul 1, 2022Granted 299 shares of NewMarket Corporation⁸