ALTO: Alto Ingredients, Inc. insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-07-27New 13G stakeBlackRock, Inc.6.90%SEC

Institutional ownership (Q2 2026)

132 institutions reported holding $190.38M of Alto Ingredients, Inc. on Form 13F (102 the quarter before). 54 opened a new position and 25 sold out. Shares held by institutions: +11%.

Largest holdersSharesValue
BlackRock, Inc.5,495,025$31.32M
VANGUARD CAPITAL MANAGEMENT LLC3,212,643$18.31M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP2,280,128$13.00M
GEODE CAPITAL MANAGEMENT, LLC1,980,080$11.29M
Hillsdale Investment Management Inc.1,703,703$9.71M
RENAISSANCE TECHNOLOGIES LLC1,518,521$8.66M
STATE STREET CORP1,230,173$7.01M
TWO SIGMA INVESTMENTS, LP1,198,890$6.83M
DIMENSIONAL FUND ADVISORS LP1,143,740$6.52M
Connor, Clark & Lunn Investment Management Ltd.855,702$4.88M

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