NATHAN GILBERT E purchased ~$343K in Alto Ingredients Inc stock
Alto Ingredients Inc (ALTO) · Data via SEC EDGAR Form 4
Price Performance · 10 days before → 90 days after trade
▲ = insider buy date
Trade Details · Public SEC Filing
Insider
NATHAN GILBERT E
Role
—
Transaction
Open-Market Purchase
Approx. Value
~$343K
Trade Date
May 13, 2026
Company
Alto Ingredients Inc
Ticker
ALTOSource
SEC EDGAR Form 4
Why This Trade Stands Out
Very Strong conviction signal
Scored in the top tier across multiple factors. Fewer than 5% of insider trades receive this rating.
~$343K purchase
A meaningful investment of personal capital. The average insider purchase is around $150K, putting this in the typical range for serious positions.
How good is NATHAN GILBERT E at picking stocks?
Full track record: win rate, average return, and performance vs S&P 500
On May 13, 2026, NATHAN GILBERT E — a corporate insider at Alto Ingredients Inc — filed a Form 4 with the SEC disclosing an open-market purchase of approximately ~$343K in Alto Ingredients Inc (ALTO) stock.
Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.
VeritySignals Conviction Analysis
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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.
At a Glance
More ALTO Insider Activity
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What is this?
When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.
Why does it matter?
Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.
What makes a trade "strong"?
We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.
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