ALTO — Insider Trading Activity
One insider at ALTO put personal money into the stock on the open market this window, led by a Director, with nobody selling.
What this means for ALTO
ALTO is not showing a cluster buy or a step-change versus its own baseline, so what the window amounts to is a single insider acting alone. Who is buying. The most credible buyer in this window is a Director ($100K–$500K), growing their stake by 7%. That insider’s track record: past buys beat the S&P 500 0 of 1 time (avg −30% vs S&P over 6 mo). Overall credibility score: 23/100 (Low).
By the numbers. One insider filed 2 open-market purchases at ALTO over the window, 60,000 shares in all at an average of $4.11 a share, most recently on September 14, 2026. No insider sold ALTO stock on the open market in that period.
How we read these filings — which transaction codes count, how the cluster and credibility thresholds are set, and what the signals have and haven’t predicted — is written up in the insider trading methodology.
ALTO insider filings, one by one
All 2 Form 4 filings from the last 90 days, by insider, with share count, dollar amount and date.
Other tickers with the same signal
Companies of a comparable size whose Form 4 filings tripped the same insider buying flag as ALTO in this window.
- FCEL insider trading — 1 buyer, 1 seller, credibility 27/100
- FMX insider trading — 1 buyer, credibility 25/100
- FUN insider trading — 1 buyer, credibility 43/100
- HLMN insider trading — 1 buyer, 2 sellers, credibility 42/100
- BLBD insider trading — 1 buyer, 1 seller, credibility 8/100