Who donated 20,000 shares of Alto Ingredients Inc stock, and to whom were they donated?

Graham Auste M, Alto Ingredients' CLO & Secretary, donated 20,000 shares of the company's common stock to a donor-advised fund at Vanguard Charitable.

How was the donation of 20,000 shares characterized in the filing, and what was their reported value?

The transaction was explicitly noted as a 'bona fide charitable gift'—not a sale—and the shares were valued at $0.00 in the filing.

Alto Ingredients CLO Donates 20,000 Shares

May 18, 2026

Alto Ingredients' Chief Legal Officer Graham Auste donated 20,000 shares to a donor-advised fund at Vanguard Charitable. Following the gift, he directly holds 233,173 shares.

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