Updated Jul 16, 2026 · Last SEC filing 2026-06-25
Alto Ingredients, Inc. (ALTO) has filed 6 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-25. 2 Form 8-K material event filings were reported by ALTO in the last 90 days. InsiderAlpha tracks every ALTO SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000778164 |
|---|
| Form 4 filings (90d) | 6 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Latest Form 4 filing | 2026-06-25 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| NATHAN GILBERT E | Director | A — Grant or award | 31.7K | $0.00 | — | SEC | |
| Nury Dianne S. | Director | A — Grant or award | 23.6K | $0.00 | — | SEC | |
| Gray Maria G | Director | A — Grant or award | 23.6K | $0.00 | — | SEC | |
| Tank Alan Robert | Director | A — Grant or award | 23.6K | $0.00 | — | SEC | |
| Graham Auste M | CLO & Secretary | G — Bona-fide gift | 20.0K | $0.00 | — | SEC | |
| NATHAN GILBERT E | Director | P — Open-market purchase | 5.0K | $4.45 | $22K | SEC | |
| NATHAN GILBERT E | Director | P — Open-market purchase | 20.0K | $4.61 | $92K | SEC | |
| Sneed James R | Chief Commercial Officer | F — Tax withholding / forfeiture | 22.3K | $4.79 | $107K | SEC | |
| Benton Todd E | COO | F — Tax withholding / forfeiture | 25.4K | $4.79 | $121K | SEC | |
| Graham Auste M | CLO & Secretary | F — Tax withholding / forfeiture | 32.9K | $4.79 | $158K | SEC | |
| McGregor Bryon T | President & CEO | F — Tax withholding / forfeiture | 73.1K | $4.79 | $350K | SEC | |
| Olander Robert R. | Chief Financial Officer | F — Tax withholding / forfeiture | 41.1K | $4.79 | $197K | SEC | |
| Graham Auste M | CLO & Secretary | A — Grant or award | 30.8K | $0.00 | — | SEC | |
| Benton Todd E | COO | A — Grant or award | 35.7K | $0.00 | — | SEC | |
| Sneed James R | Chief Commercial Officer | A — Grant or award | 30.8K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Alto Ingredients, Inc. (ALTO). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| NATHAN GILBERT E | 3 | $114K |
| Nury Dianne S. | 1 | — |
| Gray Maria G | 1 | — |
| Tank Alan Robert | 1 | — |
| Graham Auste M | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ALTO insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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