James J. Barber

Companies

• Gevo, IncBoard member May 28, 2025 to now¹
• GRAHAM CORPBoard member Aug 1, 2011 to now²
• Yield10 BioscienceBoard member Nov 9, 2006 to Dec 18, 2006³
• Yield10 BioscienceChief executive officer Nov 9, 2006 to Dec 18, 2006³
• Yield10 BiosciencePresident Nov 9, 2006 to Dec 18, 2006³

Holdings

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

Shares held

• GGRAHAM CORP GHM55,791 shares⁴$4.0M at $71.15Jun 2, 2026
• Gevo, Inc GEVO120,000 shares⁵$140.4K at $1.17Aug 21, 2026

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

Recent filings

• Aug 21, 2026Bought 50,000 shares at $1.54 of Gevo, Inc⁵
• Jun 2, 2026Exercised options 1,956 shares of GRAHAM CORP⁴
• May 27, 2026Granted 70,000 shares of Gevo, Inc⁶
• Jun 4, 2025Exercised options 2,934 shares of GRAHAM CORP⁷
• May 17, 2024Exercised options 6,393 shares of GRAHAM CORP⁸
• May 23, 2023Exercised options 6,105 shares of GRAHAM CORP⁹
• Feb 11, 2022Bought 6,600 shares at $9.20 of GRAHAM CORP¹⁰