Alto Ingredients (ALTO) insider trading in the last 6 months

Form 4 filings, newest first

Quality Score today 5

One insider bought $361K. No sales.

BuyGilbert E. Nathan$39KDirectorat $3.93 on Sep 14, filed Sep 14

BuyGilbert E. NathanDirector$39Kat $3.93 on Sep 14, filed Sep 14

BuyGilbert E. Nathan$208KDirectorat $4.15 on Aug 11, filed Aug 12

BuyGilbert E. NathanDirector$208Kat $4.15 on Aug 11, filed Aug 12

BuyGilbert E. Nathan$92KDirectorat $4.61 on May 12, filed May 14

BuyGilbert E. NathanDirector$92Kat $4.61 on May 12, filed May 14

From SEC Form 4s, the newest filed Sep 14, 2026 · Insiders have 2 business days to file a trade

1 more filing on ALTO in the last 6 months, for Pro members. See them free →

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Who files at Alto Ingredients

Gilbert E. NathanDirector · 4 buys

Insider trades by person

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Questions about ALTO's insider trades

As of Nov 2, 2026: Alto Ingredients (ALTO) has 4 insider filings on record in the last 6 months, the newest filed Sep 14, 2026. Its Quality Score is 5 (Below Average). Scores as of 5:02 PM ET, 15 minutes behind.

Are ALTO insiders buying or selling?

One insider bought $361K across 4 filings in the last 6 months. No open-⁠market sales on record. The newest filing: Gilbert E. Nathan, Director, bought $39K on Sep 14, 2026.

Who are ALTO's biggest insider sellers?

No ALTO insider sold shares on the open market in the last 6 months, as filed on Form 4.

When did an ALTO insider last buy?

Gilbert E. Nathan, Director, bought ALTO shares ($39K) on Sep 14, 2026, the newest insider buy on record.

Alto Ingredients's page has its Quality Score, its chart, and its earnings. More in Materials and Industrial Organic Chemicals. ALTO is on insider buys, Sep 14 to 20, 2026.