James Barber Biography and Net Worth

Director of Gevo

Dr. Barber has served as a Director of the company since 2025. Dr. Barber currently serves on the board of directors of Graham Corporation (NYSE: GHM), where he chairs the Compensation Committee and is a member of the Audit and Nomination and Governance Committees. Dr. Barber holds a Ph.D. in Organic Chemistry from the Massachusetts Institute of Technology (MIT) and a B.S. in Chemistry from Rensselaer Polytechnic Institute. He is also a recipient of the American Chemical Society's Henry F. Whalen, Jr. Award for Business Development and holds a Directorship Certification from the National Association of Corporate Directors.

What is James J. Barber's net worth?: The estimated net worth of James J. Barber is at least $183.60 thousand as of August 21st, 2026. Dr. Barber owns 120,000 shares of Gevo stock worth more than $183,600 as of August 25th. This net worth approximation does not reflect any other investments that Dr. Barber may own. Learn More about James J. Barber's net worth.
How do I contact James J. Barber?: The corporate mailing address for Dr. Barber and other Gevo executives is 345 Inverness Drive South Building C Suite 310, Englewood CO, 80112. Gevo can also be reached via phone at (303) 858-8358 and via email at [email protected]. Learn More on James J. Barber's contact information.
Has James J. Barber been buying or selling shares of Gevo?: Over the course of the past ninety days, James J. Barber has bought $77,000.00 in Gevo stock. Most recently, on Friday, August 21st, James J. Barber bought 50,000 shares of Gevo stock. The stock was acquired at an average cost of $1.54 per share, with a total value of $77,000.00. Following the completion of the transaction, the director now directly owns 120,000 shares of the company's stock, valued at $184,800. Learn More on James J. Barber's trading history.
Who are Gevo's active insiders?: Gevo's insider roster includes Oluwagbemileke Agiri (CFO), Angelo Amorelli (Director), James Barber (Director), Carol Battershell (Director), Paul Bloom (Insider), Kimberly Bowron (Insider), Lindsay Fitzgerald (Insider), Davaajargal Gendenjamts (VP), Patrick Gruber (CEO), Patrick Gruber (CEO), David Kettner (General Counsel), Andrew Marsh (Director), Gary Mize (Director), Gary Mize (Director), Alisher Nurmat (VP), Christopher Ryan (Pres & COO ), Christopher Ryan (COO), Andrew Shafer (Insider), L Smull (EVP), and Geoffrey Williams, Jr. (VP). Learn More on Gevo's active insiders.
Are insiders buying or selling shares of Gevo?: During the last twelve months, Gevo insiders bought shares 2 times. They purchased a total of 62,500 shares worth more than $96,375.00. During the last twelve months, insiders at the energy company sold shares 41 times. They sold a total of 1,830,493 shares worth more than $3,540,072.50. The most recent insider tranaction occured on August, 21st when insider David Michael Kettner bought 12,500 shares worth more than $19,375.00. Insiders at Gevo own 7.1% of the company. Learn More about insider trades at Gevo.
Information on this page was last updated on 8/21/2026.

James J. Barber Insider Trading History at Gevo

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction	Details
8/21/2026	Buy	50,000	$1.54	$77,000.00	120,000

James J. Barber Buying and Selling Activity at Gevo

Gevo Company Overview

Gevo, Inc. operates as a carbon abatement company. It operates through three segments: Gevo, Agri-Energy, and Renewable Natural Gas. The company focuses on transforming renewable energy into energy-dense liquid hydrocarbons that can be used as renewable fuels. It offers renewable gasoline and diesel, isobutanol, sustainable aviation fuel, renewable natural gas, isobutylene, ethanol, and animal feed and protein. The company was formerly known as Methanotech, Inc. and changed its name to Gevo, Inc. in March 2006. Gevo, Inc. was incorporated in 2005 and is headquartered in Englewood, Colorado.

Today's Range

Now: $1.64

$1.55

50 Day Range

MA: $1.53

$1.40

$1.83

2 Week Range

Now: $1.64

$1.37

$2.97

Volume

21,936 shs

Average Volume

3,538,921 shs

Market Capitalization

$404.24 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.04